REPAIRING / SERVICING TV DNS V40DN54

Technical description and composition of the DNS V40DN54 TV, panel type and modules used. The composition of the modules.
DNS LED
Model: V40DN54
Chassis / Version: CV9202H-A
Panel: LTA400HM24
LED backlight: SLED 2012SLS40 7030 44 L / R REV1.2
LED driver (backlight): LK-LE420202D
Power Supply (PSU): LKP-SP006 REV: 1.1 LK-SP416002A
PWM Power: PWM SOT23-6 (OB2273)
MainBoard: CV9202H-A
IC MainBoard: SPI FLASH: W25Q32FV
Tuner: NoName
Specifications V40DN54
DNS V40DN54
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- DNS V40DN54 does not turn on, front panel LEDs are off or flashing. The TV does not respond to the control buttons and the remote control.
In some of these cases, a malfunction is detected in the LKP-SP006 power supply module. Its output voltages should be measured and, in their absence, the serviceability of the power switches and rectifier diodes in the converters should be checked for possible breakdown.
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and with a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key often breaks off.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or knowingly working properly.
- There is no picture, but there is sound, it reacts to the remote control. Or the image appears when turned on and immediately disappears
In some of these cases, the malfunction is caused by the lack of display backlighting. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
To check the LED strips for breakage without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter; a voltage of the order of several tens of volts is required.
- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.

Repair or diagnostics of the CV9202H-A motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). If it is not possible to replace the MB (SSB) board, it is necessary to check the serviceability of its elements - SPI FLASH: W25Q32FV. Defective components must be replaced.

Users and owners of TVs need to remember that attempts to repair a DNS V40DN54 TV on their own without the appropriate qualifications and the necessary experience can lead to serious negative consequences!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   DNS V40DN54, Main: CV9202H-A, Panel: LTA400HM24

 The appearance of the MainBoard CV9202H-A is shown in the figure below:
CV9202H-A
Main features of the DNS V40DN54 device:
Installed matrix (LED-panel) LTA400HM24.
The LED driver LK-LE420202D is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the DNS V40DN54 TV is carried out by the LKP-SP006 power supply module, or its analogs using PWM SOT23-6 (OB2273) microcircuits.
MainBoard - the main board (motherboard) is a CV9202H-A module, using SPI FLASH chips: W25Q32FV and others.
Tuner NoName provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA400HM24
Type: a-Si TFT-LCD, Panel
Diagonal size: 40 inch
Resolution: 1920x1080, FHD
Display Mode: S-PVA, Normally Black, Transmissive
Active Area: 885.6x498.15 mm
Surface: Antiglare (Haze 0.8%), Hard coating (2H)
Brightness: 470 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 1.07B (8-bit + Hi-FRC), CIE1931 70%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 2 strings WLED Without Driver
Signal Interface: LVDS (2 ch, 10-bit), 51 pins
Voltage: 12.0V
DNS V40DN54 TV with LCD LTA400HM24, diagonal 40 "(102 cm) in 16: 9 format. The required screen brightness of 400 cd / m² is provided by LED backlighting. Contrast - the ratio of maximum brightness to minimum brightness is 6000: 1. the model uses a panel with backlighting LEDs at the end - Edge LED.
The LTA400HM24 matrix and the MainBoard CV9202H-A software provide viewing of broadcasts and films in high quality HD at a resolution of 1920x1080 pixels in graphics resolution at 1080p (Full HD). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, DivX, MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, VGA, HDMI x3, USB. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768, 1920x1080. The digital tuner is capable of receiving TV channels in DVB-C standards.
The power consumed by the TV operating in mains mode is 90 W. Power supply LKP-SP006.
Dimensions: With stand 941x616x211 mm, Without stand 941x569x85 mm.
TV weight: 13.4 kg.
Attention! The LTA400HM24 panel of the DNS V40DN54 LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!

It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV DNS V32D8100S

Technical description and composition of the DNS V32D8100S TV, panel type and modules used. The composition of the modules.
DNS LED
Model: V32D8100S
Chassis / Version: TP.SIS231.PT85
Panel: LSC320HN04-002 // DLED32-MZ-014
LED backlight: 13Y 32VNB USITSL4LV0.0 LEFT & RIGHT
T-CON: 13Y_S60TVAMB4C2LV0.0
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3350CP
MOSFET LED driver: AOD4454
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6 LD7536
MainBoard: TP.SIS231.PT85
IC MainBoard: CPU: SIS231, DRAM: NT5CB64M16FP-DH, SPI Flash: 25Q64, TPA3110LD2, SI2168, RT7237
Control: IR: DLED32-ZJ-YKB-001
Specifications V32D8100S
DNS V32D8100S
General recommendations for TV LCD LED repair
Possible malfunctions
- DNS V32D8100S does not turn on and does not show any signs of operability at all. Does not blink indicators and does not respond to control buttons.
A malfunction in such cases, first of all, should be sought in the power elements of a switching power supply (SMPS) - a mains voltage converter (AC / DC), which in this TV model is combined with the main board MainBoard TP.SIS231.PT85. It is then necessary to measure its output voltages and, in their absence, the power switches and rectifier diodes of the converters should be checked for the probability of a short circuit.
In case of breakdowns in the secondary circuits of the converter, it can usually work in an emergency mode in a short-circuit mode, and with a short circuit in the power elements of the primary circuit, the mains fuse or current sensor in the source of the key most often breaks off.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers PWM SOT23-6 LD7536, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or knowingly working properly.
- There is no image, there is sound, it reacts to the remote control. Or the image may appear for a second when turned on and disappear immediately.
Often, in such cases, there is no backlighting of the LED panel. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.

Repair or diagnostics of the TP.SIS231.PT85 motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and the matrix. If necessary, you should update or replace the software (software). When repairing an MB board, it is necessary to check its components CPU: SIS231, NAND: NT5CB64M16FP-DH, SPI Flash: 25Q64, TPA3110LD2, SI2168, RT7237. Defective elements must be replaced. If chips with BGA soldering technology are used, the problem in its implementation is detected by local heating of the chip.

Owners and users of the DNS V32D8100S TV should remember that self-repair without special knowledge, skills and qualifications may be fraught with negative consequences that can lead to the complete non-repairability of the device!


DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   DNS V32D8100S, Main: TP.SIS231.PT85, Panel: DLED32-MZ-014


 DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    Power supply Chassis TP.SIS231.PT85

  The appearance of the MainBoard TP.SIS231.PT851 is shown in the figure below:
TP.SIS231.PT851
TP.SIS231.PT85 can be used in TVs:
DNS M39DM8 (Panel V390HJ1-P02 Rev C1), DNS S32DC1 (Panel T320XVD01.0), DNS E32D18 (Panel ST3151A05-5 CX315DLEDM), DNS V32D8100S (Panel LSC320HN04-002), ERISSON 40LEP92 (Panel LSC400HN01 G01), ROLSEN RL-39S1502T2C (Panel V390BJ1-L01-D00), RUBIN RB-40D5FT2C (Panel 390HJ5-XCPE1), RUBIN RB-40SE9FT2C (Panel CX400DLEDM), SUPRA STV-LC32T871WL (Panel JHD315GH-E31), SUPRA STV-LC40T871FL (Panel JHD400GF), TELEFUNKEN TF-LED32S26T2 (Panel MT3151A05).
Main features of the DNS V32D8100S device:
The matrix (LED panel) LSC320HN04-002 or DLED32-MZ-014 is installed.
Matrix control uses Timing Controller (T-CON) 13Y_S60TVAMB4C2LV0.0.
To power the backlight LEDs, a converter combined with the main board TP.SIS231.PT85 is used, controlled by the OB3350CP PWM controller. The keys of the AOD4454 type are used as power elements of the LED driver.
The power module is combined with the MainBoard and is made according to the AC / DC flyback voltage converter using PWM SOT23-6 LD7536 microcircuits.
MainBoard - the main board (motherboard) is a TP.SIS231.PT85 module, using CPU: SIS231 chips, DRAM: NT5CB64M16FP-DH, SPI Flash: 25Q64, TPA3110LD2, SI2168, RT7237 and others.
DNS TV V32D8100S with LCD DLED32-MZ-014, 32 "(81 cm) 16: 9. depending on the illumination of the areas in the scene.This model uses a panel with edge-mounted backlight LEDs - Edge LED.
The DLED32-MZ-014 matrix and the MainBoard TP.SIS231.PT85 software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution at 1080p (Full HD). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, DivX, MKV, JPEG.
Speaker power 10 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, SCART, VGA, HDMI x4, MHL, USB. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1360x768, 1920x1080. The digital tuner is capable of receiving television channels in DVB-T, DVB-C, DVB-T2 standards.
The TV uses a power supply unit as part of the MainBoard.
Dimensions: With stand 720x520x220 mm, Without stand 720x460x80 mm.
Attention! The panel DLED32-MZ-014 of the DNS V32D8100S LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!

It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV DNS V39DS8100S

Technical description and composition of the DNS V39DS8100S TV, panel type and modules used. The composition of the modules.
DNS LED
Model: V39DS8100S
Chassis / Version: CV9202H-CSM
Panel: T390HVD01.1 DLED39-MZ-020
LED backlight: JC-MY23DL5D-0006 3BL-T7384102-002B
T-CON: 39T01-C03 T390HVN01.0 and 39T01-S04 T390HVN01.0 XL
LED driver (backlight): integrated into PSU
PWM LED driver: OB3350CP
Power Supply (PSU): LK-PL320408J CQC04001011196
PWM Power: OB2273MP
MOSFET Power: 7N80
MainBoard: CV9202H-CSM
IC MainBoard: SPV9202, 25Q64, TPA3110LD2
Specifications V39DS8100S
DNS V39DS8100S
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- DNS TV V39DS8100S does not turn on at all. Control lamps do not light up or blink. The remote control and buttons on the control panel are unresponsive.
With such manifestations, a malfunction is most likely found in the LK-PL320408J power supply module. Its output voltages should be measured and, in their absence, the serviceability of the power switches (7N80) and rectifier diodes in the converters should be checked for the probability of a short circuit.
In the event of thermal or avalanche breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the elements of the primary circuit, the mains fuse most often immediately breaks and, less often, the current sensor at the source of the key.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch can also be the PWM OB2273MP. It is checked only by replacing it with a known good one.
- There is no image, there is sound, it reacts to the remote control. Or the image may appear for a second when turned on and disappear immediately.
The malfunction in most of such cases is found in the nodes and elements of the LED panel backlight. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the LED bars for a break without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts is required, and ideally a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light one 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off or broken through in the K / Z.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the CV9202H-CSM motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - SPV9202, 25Q64, TPA3110LD2, which may require replacement with new ones. If a BGA processor is installed, there is a possibility that the soldering of the contacts of its pins with the board is broken (detected by warming up).

Attention to users! Self-repair of the DNS V39DS8100S TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   DNS V39DS8100S, Main: CV9202H-CSM

 The appearance of the MainBoard CV9202H-CSM is shown in the figure below:
CV9202H-CSM
External view of the power supply
Main features of the DNS V39DS8100S device:
Installed matrix (LED panel) T390HVD01.1 DLED39-MZ-020.
Matrix control uses Timing Controller (T-CON) 39T01-C03.
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by the OB3350CP PWM controller.
The formation of the necessary supply voltages for all nodes of the DNS V39DS8100S TV is carried out by the LK-PL320408J power module, or its analogs using OB2273MP microcircuits and 7N80 power switches.
MainBoard - the main board (motherboard) is a CV9202H-CSM module, using SPV9202, 25Q64, TPA3110LD2 and others.
DNS TV V39DS8100S with LCD T390HVD01.1, 39 "(99 cm) diagonal, 16: 9 format. Contrast - The ratio of maximum to minimum brightness is 5000: 1. The LCD panel uses direct pixel backlighting with rear LEDs - Direct LED.
The T390HVD01.1 DLED39-MZ-020 matrix and the MainBoard CV9202H-CSM software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution at 1080p (Full HD).
V39DS8100S TV is equipped with SMART software, built-in applications and the ability to work on the Internet. The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG. Stereo sound is provided by two built-in speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), component, SCART, RGB, VGA, HDMI x2, USB x3, Ethernet (RJ-45). A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768, 1920x1080. The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The TV uses the LK-PL320408J power supply.
Dimensions: With stand 720x520x220 mm, Without stand 720x460x80 mm.
Attention! Panel T390HVD01.1 DLED39-MZ-020 LED TV DNS V39DS8100S is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV DNS V40D8200

Technical description and composition of the DNS V40D8200 TV, panel type and modules used. The composition of the modules.
DNS LED
Model: V40D8200
Chassis / Version: T.MSD309
Panel: LSC400HV02-W05
LED backlight: DTW400LL01-A, DTW400LL01-D
T-CON: 12PSQBC4LV0.0; LPF12B0; LVDS: PL.MS6M30.1B-1
LED driver (backlight): integrated into PSU
PWM LED driver: OB2273
Power Supply (PSU): LK-PL390401E
PWM Power: FAN7930 (PFC), OB2273
MOSFET Power: SMK0870F
MainBoard: T.MSD309.BA5T // T.MSD309.BA3T
IC MainBoard: Spi Flash: 25Q32FVS1G, W25X10
Specifications V40D8200
DNS V40D8200
General recommendations for TV LCD LED repair
If the LK-PL390401E power supply module fails, external manifestations may be different, for example, the DNS V40D8200 does not turn on at all and there is no indication of the control lamps on the front panel. Diagnostics and repair of the common power supply should always begin with checking the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the mains rectifier, as well as the large electrolytic capacitor of the mains rectifier filter.
As a rule, switches in switching power supplies (SMPS) are quite reliable and rarely fail without reasons that should be looked for by checking other circuit components - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM microcircuit is checked by replacing it with a known good one.
If the DNS V40D8200 TV does not have an image, but there is sound, a malfunction is likely in the backlight circuits of the LED panel DTW400LL01-A // LSC400HV02-W05.
Often it becomes necessary to disassemble the panel to check the health of the LEDs, as well as the contact connections in the connectors and solders.
Without a special current source, it is impossible to check the line of series-connected LEDs, and it is unsafe for them to use any voltage sources over 12V for this purpose. Then all that remains is to open the panel and check each LED separately. Usually, Chinese multimeters with 9V power supply lightly light up one 3-volt LED, if you connect the probes to it in the forward direction, the red probe to the anode, and the black one to the cathode. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of the LED health. In the event of a malfunction of the LED, its zener diode will either be cut off, or broken through in the K / Z.
Repair or diagnostics of the T.MSD309.BA5T motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update the software (software).

Attention to the owners! Attempts to repair the DNS V40D8200 TV yourself are not recommended by the manufacturer and can lead to serious negative consequences!

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    Chassis MSD309B Schematic diagram

 The appearance of the MainBoard T.MSD309.BA5T is shown in the figure below:
T.MSD309.BA5T
T.MSD309.BA5T can be used in TVs:
DNS V40D8200 (Panel LSC400HV02-W05), DNS V32D2500 (Panel TY315LK12-ACW1 V315H3-CPE6), DNS S32DSB1 (Panel T315HB01 V.1), DNS S39DSB1 (Panel V390HJ1-LE1).
External view of the power supply
Main features of the DNS V40D8200 device:
Installed matrix (LED panel) LSC400HV02-W05.
Matrix control uses Timing Controller (T-CON) 12PSQBC4LV0.0 ;.
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by the OB2273 PWM controller.
The formation of the necessary supply voltages for all nodes of the DNS V40D8200 TV is carried out by the LK-PL390401E power module, or its analogs using FAN7930 (PFC), OB2273 microcircuits and power switches of the SMK0870F type.
MainBoard - the main board (motherboard) is a T.MSD309.BA5T module, using Spi Flash chips: 25Q32FVS1G, W25X10 and others.
The LSC400HV02-W05 matrix and the MainBoard T.MSD309.BA5T software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution at 1080p (Full HD). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, DivX, MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, VGA, HDMI x4, USB. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768, 1920x1080. The digital tuner is capable of receiving television channels in DVB-T, DVB-C, DVB-T2 standards.
The power consumed by the TV operating in mains mode is 90 W. Power supply LK-PL390401E.
Dimensions: With stand 910x592x220 mm, Without stand 910x524x60 mm.
TV weight: 12.4 kg.
Attention! The panel LSC400HV02-W05 of the DNS V40D8200 LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV DNS V32D2500

Technical description and composition of the DNS V32D2500 TV, panel type and modules used. The composition of the modules.
DNS LED
Model: V32D2500
Chassis / Version: T.MSD309.BA5T
Panel: TY315LK12-ACW1 V315H3-CPE6
LED backlight: MBL-32035D210DH0-V1-60MM
T-CON: V315H3-CPE6
LED driver (backlight): integrated into PSU
PWM LED driver: OB3350CP
Power Supply (PSU): LK-PL320408J MO34130016
PWM Power: OB2273MP
MOSFET Power: 7N80
MainBoard: T.MSD309.BA5T
IC MainBoard: Spi Flash: 25Q32FVS1G, W25X10
Specifications V32D2500
DNS V32D2500
General recommendations for TV LCD LED repair
Possible manifestations of defects
- The DNS V32D2500 TV does not turn on and does not show any signs of operability at all. There is no reaction to either the remote or the front panel control buttons.
Usually with similar manifestations, the defect is caused by faulty elements in the main power module LK-PL320408J. It is necessary to make sure of the presence of its secondary voltages and, in their absence, check the power switches (7N80) and rectifier diodes for a possible short circuit.
In case of breakdowns, for example, of P-N junctions in diodes in secondary circuits, the converter can operate in an emergency mode of short circuit without the formation of output voltages, and with a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch can also be the PWM OB2273MP. It is checked only by replacing it with a known good one.
- There is no image, there is sound, it reacts to the remote control. Or the image may appear for a second when turned on and disappear immediately.
Usually, in such cases, a malfunction is detected in the LED panel backlight nodes. The reason may be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the T.MSD309.BA5T motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Sometimes it is necessary to check or replace (if necessary) elements of the MainBoard - Spi Flash: 25Q32FVS1G, W25X10. In cases where a BGA processor is used, its malfunction is usually detected by a local warm-up method.

Owners of the V32D2500 TV are advised to contact only qualified specialists with the necessary experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   DNS V32D2500, Main: T.MSD309.BA5T, Panel: TY315LK12-ACW1

 The appearance of the MainBoard T.MSD309.BA5T is shown in the figure below:
T.MSD309.BA5T
T.MSD309.BA5T can be used in TVs:
DNS V40D8200 (Panel LSC400HV02-W05), DNS V32D2500 (Panel TY315LK12-ACW1 V315H3-CPE6), DNS S32DSB1 (Panel T315HB01 V.1), DNS S39DSB1 (Panel V390HJ1-LE1).
External view of the power supply
Main features of the DNS V32D2500 device:
The matrix (LED-panel) TY315LK12-ACW1 V315H3-CPE6 is installed.
Matrix control uses Timing Controller (T-CON) V315H3-CPE6.
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by the OB3350CP PWM controller.
The formation of the necessary supply voltages for all nodes of the DNS V32D2500 TV is carried out by the LK-PL320408J power module, or its analogs using OB2273MP microcircuits and 7N80 power switches.
MainBoard - the main board (motherboard) is a T.MSD309.BA5T module, using Spi Flash chips: 25Q32FVS1G, W25X10 and others.
DNS TV V32D2500 with LCD TY315LK12-ACW1, 32 "(81 cm) 16: 9. on the illumination of areas in the scene.The LCD panel uses direct pixel backlighting with rear-mounted LEDs - Direct LED.
The TY315LK12-ACW1 V315H3-CPE6 matrix and the software of the MainBoard T.MSD309.BA5T provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution at 1080p (Full HD). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, DivX, MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, VGA, HDMI x4, USB. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1360x768, 1920x1080. The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The TV uses the LK-PL320408J power supply.
Dimensions: With stand 731x492x160 mm, Without stand 731x441x80 mm.
TV weight: 6.8 kg.
Attention! The panel TY315LK12-ACW1 V315H3-CPE6 of the DNS V32D2500 LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV DNS V16AN36

Technical description and composition of the DNS V16AN36 TV, panel type and modules used. The composition of the modules.
DNS LED
Model: V16AN36
Panel: N156BGE-L21 Rev. C1
T-CON: N156BG-L0A
LED driver (backlight): integrated into T-CON
Power Supply (PSU): Adapter 12V
PWM Power: PWM
MainBoard: CVMV39L-B
IC MainBoard: TSUMV29LU
Tuner: CDT-3SP5I2-37
Specifications V16AN36
DNS V16AN36
General recommendations for TV LCD LED repair
Sometimes the DNS V16AN36 TV just won't turn on. No control lamps on the front panel are on or blinking, the TV does not respond to the remote control and does not emit any sounds or any signs of life when turned on. The most probable cause of the malfunction is the failure of the common adapter 12V power supply module. If it is working properly, it is necessary to check the standby power cells on the Main Board. When repairing a power supply, it is advisable to start diagnostics with checking the mains fuse and electrolytic capacitors of the filters of the secondary rectifiers of the converter. In the event of a break in the fuse, the cause should be sought in the power semiconductor elements of the pulse converter of the main power supply unit. First of all, it is necessary to check the diodes of the rectifier bridge of the mains voltage and the power switch (keys) of the converter.The complete inoperability of the power supply unit can be caused by a short circuit of the power elements in the primary circuit followed by a break in the fuse, or a short circuit in the loads.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (SMPS) it does not fail by itself without reasons that should be looked for by checking other elements of the primary circuit - electrolytic capacitors, PWM controller PWM, which can be checked only by replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the DNS V16AN36 does not have an image, but there is sound and the TV is controlled from the remote control, a malfunction in the N156BGE-L21 Rev.C1 panel backlight circuits is likely. The LEDs or their power converter - LED driver may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to make sure that the electrolytic capacitors of the rectifier filter supplying the backlight unit are in good working order.
To check the health of the LEDs, as well as the contact connections in the ruler circuit, it is necessary to disassemble the panel.
Without a special current source, it is impossible to check the line of series-connected LEDs, and it is unsafe for them to use any voltage sources over 12V for this purpose. Then all that remains is to open the panel and check each LED separately. Usually, Chinese multimeters with 9V power supply lightly light up one 3-volt LED, if you connect the probes to it in the forward direction, the red probe to the anode, and the black one to the cathode. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of the LED health. In the event of a malfunction of the LED, its zener diode will either be cut off, or broken through in the K / Z.
Repair of the CVMV39L-B motherboard must begin with diagnostics and testing of all linear stabilizers and power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM.
Often the MB (SSB) board must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - TSUMV29LU and replace the failed chips with new ones. Some malfunctions may be associated with the use of BGA soldering technologies in modern Main Board. Typically, such defects are detected by local heating of the chip.
If you suspect a malfunction of the CDT-3SP5I2-37 tuner, first of all you need to make sure that the software is correct, as well as the presence of the required supply voltage levels and pulses of data exchange with the processor via the I2C bus on the corresponding tuner pins.

Owners and users of the DNS V16AN36 TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to the complete non-repairability of the device!

Additional MainBoard Repair
The appearance of the MainBoard CVMV39L-B is shown in the figure below:
CVMV39L-B
Main features of the DNS V16AN36 device:
Installed matrix (LED-panel) N156BGE-L21 Rev. C1.
Matrix control uses the N156BG-L0A Timing Controller (T-CON).
The integrated LED driver is used to power the backlight LEDs.
To power all internal nodes of the DNS V16AN36 TV, an external adapter type 12V is used using PWM microcircuits.
MainBoard - the main board (motherboard) is a CVMV39L-B module, using TSUMV29LU microcircuits and others.
The CDT-3SP5I2-37 tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: N156BGE-L21 61 Compatible model
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.6 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 344.232x193.536 mm
Shape Style: Wedge (PCBA Bent, Depth? 5.2mm)
Surface: Glare (Haze 0%), Hard coating (3H)
Brightness: 220 cd / m²
Contrast Ratio: 650: 1
Display Colors: 262K (6-bit), CIE1931 60%
Response Time: 3/8 (Tr / Td)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 6-bit), 40 pins
Voltage: 3.3V


DNS TV V16AN36 with LCD N156BGE-L21, diagonal size 16 "(41 cm) 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Contrast - the ratio of maximum to minimum brightness is 2000: 1. Dynamic contrast ratio of 40,000: 1 is achieved by special control of the LEDs depending on the illumination of areas in the scene.This model uses a panel with edge-mounted backlight LEDs - Edge LED.
The N156BGE-L21 Rev. C1 sensor and MainBoard CVMV39L-B software provide high quality HD viewing at 1366x768 pixels in 720p (HD Ready). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the 480i, 480p, 576i, 576p, 720p standards.
Speaker power 6 W (2x3 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, SCART, VGA, HDMI. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV operating in mains mode is 30 W. Power supply Adapter.
Overall dimensions: 393x292x120 mm.
TV weight: 1.7 kg.
Attention! The panel N156BGE-L21 Rev. C1 of the DNS V16AN36 LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV DNS S39DSB1

Technical description and composition of the DNS S39DSB1 TV, panel type and modules used. The composition of the modules.
DNS LED
Model: S39DSB1
Chassis / Version: T.MSD309.BA5T
Panel: V390HJ1-LE1
T-CON: 390HJ1-CE1; CM2805A, CM501
LED driver (backlight): L390H1-1EE
PWM LED driver: HAI5208BP, HAI7203HA
MOSFET LED driver: M8014D
Power Supply (PSU): AY080D-4SF 3BS0041014
MainBoard: T.MSD309.BA5T B.AML8726M3.2
IC MainBoard: CPU: MSD309BT, SPI Flash: 25Q32FVS1G, W631GG6KB, Audio: TPA3124D2
Specifications S39DSB1
DNS S39DSB1
General recommendations for TV LCD LED repair
Possible manifestations of defects
- DNS S39DSB1 does not turn on and does not show any signs of operability at all. Does not blink indicators and does not respond to control buttons.
Usually with similar manifestations, the defect is caused by faulty elements in the main power module AY080D-4SF. It is necessary to measure its output supply voltages, and if they are absent, check the serviceability of the power switches of the converters and rectifier diodes for the probability of breakdown in semiconductor PN junctions.
In case of any breakdown of semiconductors in the secondary circuits, the converter can usually operate normally in an emergency short-circuit mode. There are no output voltages. And with a short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and, less often, the current sensor in the source of the key.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or knowingly working properly.
- There is no picture, but there is sound and reaction to the remote control. Or, for a second, the image may appear immediately after switching on.
Often, in such cases, there is no backlighting of the LED panel. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.
Repair or diagnostics of the T.MSD309.BA5T motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). If it is not possible to replace the MB (SSB) board, you need to check the health of its elements - CPU: MSD309BT, SPI Flash: 25Q32FVS1G, W631GG6KB, Audio: TPA3124D2. Defective components must be replaced.

Owners and users of the DNS S39DSB1 TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to the complete non-repairability of the device!

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    Chassis MSD309B Schematic diagram

 To reduce the backlight current in LED drivers with a HAI7203HA controller, increase the total resistance of the resistors from pin 12 (ISET) to the case. The currents will decrease proportionally in each of the 8 channels. When the channels are connected in parallel, the currents are summed up.

Additional MainBoard Repair
The appearance of the MainBoard T.MSD309.BA5T is shown in the figure below:
T.MSD309.BA5T
T.MSD309.BA5T can be used in TVs:
DNS V40D8200 (Panel LSC400HV02-W05), DNS V32D2500 (Panel TY315LK12-ACW1 V315H3-CPE6), DNS S32DSB1 (Panel T315HB01 V.1), DNS S39DSB1 (Panel V390HJ1-LE1).
Main features of the DNS S39DSB1 device:
Installed matrix (LED panel) V390HJ1-LE1.
Matrix control uses Timing Controller (T-CON) 390HJ1-CE1 ;.
The LED driver L390H1-1EE is used to power the backlight LEDs, controlled by the PWM controller HAI5208BP, HAI7203HA. The keys of the M8014D type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the DNS S39DSB1 TV is carried out by the AY080D-4SF power module, or its analogs.
MainBoard - the main board (motherboard) is a T.MSD309.BA5T module, using CPU chips: MSD309BT, SPI Flash: 25Q32FVS1G, W631GG6KB, Audio: TPA3124D2 and others.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V390HJ1-LE1
Type: a-Si TFT-LCD, Panel
Diagonal size: 39 inch
Resolution: 1920x1080, FHD
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 853.92x480.33 mm
Surface: Antiglare (Haze 3.5%), Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 3500: 1
Display Colors: 16.7M (8-bit), CIE1931 68%
Response Time: 9.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
DNS TV S39DSB1 with LCD V390HJ1-LE1, diagonal 39 "(99 cm) in 16: 9 format. The required screen brightness of 300 cd / m2 is provided by LED backlighting. Dynamic contrast ratio of 5000: 1 is achieved by special control of LED operation depending on from the illumination of areas in the scene.This model uses a panel with an edge-mounted backlight LEDs - Edge LED.
The V390HJ1-LE1 matrix and the MainBoard T.MSD309.BA5T software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics decomposition at 1080p (Full HD).
S39DSB1 has built-in SMART software and pre-installed Android operating system. Internet connection can be made via Wi-Fi wireless connection. The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, VGA, HDMI x4, USB x3, Ethernet (RJ-45), Wi-Fi. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1360x768, 1920x1080. The digital tuner is capable of receiving television channels in DVB-T, DVB-C, DVB-T2 standards.
The TV uses the AY080D-4SF power supply.
Dimensions: With stand 890x587x212 mm, Without stand 890x532x76 mm.
TV weight: 13.6 kg.
Attention! The V390HJ1-LE1 panel of the DNS S39DSB1 LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV DNS S39DB1

Technical description and composition of the DNS S39DB1 TV, panel type and modules used. The composition of the modules.
DNS LED
Model: S39DB1
Chassis / Version: T.MSD309
Panel: V390HJ1-LE1
T-CON: V390HJ1-CE1
LED driver (backlight): L390H1-1EE
PWM LED driver: ATP360A13, HAI 5208PB, HAI 7203HA
Power Supply (PSU): ER878 REV: 1.0 (KB-5150 CEM-1)
PWM Power: PFC SOP-8, PWM SOT23-6
MainBoard: T.MSD309.BA3T
IC MainBoard: CPU: MSD309BT, SPI Flash: 25Q32, DRAM: W631GG6KB-12, HDMI: IT6633E-PKB, Audio: TPA3124D2, DVB-T2: MSB1231-LF
Specifications S39DB1
DNS S39DB1
General recommendations for TV LCD LED repair
Possible manifestations of defects
- TV DNS S39DB1 does not turn on. There are no signs of operability. The indicators on the front panel do not light or blink, and does not respond to the remote control and control buttons.
In such cases, the fault should be looked for primarily in the ER878 power module. It is necessary to measure its secondary output voltages, and if they are absent, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in short-circuit mode, and in case of short-circuit in the elements of the primary circuit, the mains fuse usually breaks off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch can also be PWM PFC SOP-8, PWM SOT23-6. It is checked only by replacing it with a known good one.
- There is no picture, but there is sound and reaction to the remote control. Or, for a second, the image may appear immediately after switching on.
Often, in such cases, there is no backlighting of the LED panel. The reason may be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
To check the LED strips for breakage without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter; a voltage of the order of several tens of volts is required.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the T.MSD309.BA3T motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Complicated MB (SSB) repair is possible only in the conditions of a service center with the necessary equipment. Checking or replacing CPU elements: MSD309BT, SPI Flash: 25Q32, DRAM: W631GG6KB-12, HDMI: IT6633E-PKB, Audio: TPA3124D2, DVB-T2: MSB1231-LF requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by the warm-up method.

Owners and users of the DNS S39DB1 TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    Chassis MSD309B Schematic diagram

 The appearThe appearance of the MainBoard T.MSD309.BA3T is shown in the figure below:
T.MSD309.BA3T
T.MSD309.BA3T can be used in TVs:
DNS M39DM8 (Panel V390HJ1-P02 Rev C1), DNS S29DB1 (Panel V290BJ1-LE1), DNS S39DB1 (Panel V390HJ1-LE1), DNS V40D8200 (Panel LSC400HV02-W05), DNS M32DM8 (Panel V320BJ2-P01), DNS S32DSB1 (Panel T315HB01 V.1), DNS S32DST1 (Panel HV320WX2-201).
External view of the power supply
Main features of the DNS S39DB1 device:
Installed matrix (LED panel) V390HJ1-LE1.
Matrix control uses the Timing Controller (T-CON) V390HJ1-CE1.
The LED driver L390H1-1EE is used to power the backlight LEDs, it is controlled by the PWM controller ATP360A13, HAI 5208PB, HAI 7203HA.
The formation of the necessary supply voltages for all nodes of the DNS S39DB1 TV is carried out by the ER878 power module, or its analogs using PFC SOP-8, PWM SOT23-6 microcircuits.
MainBoard - the main board (motherboard) is a T.MSD309.BA3T module, using CPU chips: MSD309BT, SPI Flash: 25Q32, DRAM: W631GG6KB-12, HDMI: IT6633E-PKB, Audio: TPA3124D2, DVB-T2: MSB1231 -LF and others.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V390HJ1-LE1
Type: a-Si TFT-LCD, Panel
Diagonal size: 39 inch
Resolution: 1920x1080, FHD
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 853.92x480.33 mm
Surface: Antiglare (Haze 3.5%), Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 3500: 1
Display Colors: 16.7M (8-bit), CIE1931 68%
Response Time: 9.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V

 

 

PWM SMPS in SOT-23-6, SOT-26, TSOP-6 packages

In the circuitry of modern switching power supplies (SMPS), PWM controllers made in small-sized planar packages with six terminals have gained wide popularity. The enclosure type designation can be SOT-23-6, SOT-23-6L, SOT-26, TSOP-6, SSOT-6. The appearance and arrangement of the pins are shown in the figure below. In this case, the code marking LD7530A is shown on the left fragment of the picture.


 

 Pin assignment:
1 - GND. (Common wire).
2 - FB. (FeedBack - Feedback). Input for controlling the duration of pulses with a signal from the output voltage. Sometimes it can be labeled COMP (input comparator).
3 - RI / RT / CT / COMP / NC - Depending on the type of microcircuit, it can be used for a frequency-setting RC circuit (RI / RT / CT), or for organizing protection, as an input of a PWM trip comparator at a threshold value at its input, specified in the document. In some types of microcircuits, this input may not be used in any way (NC - No Connect).
4 - SENSE, otherwise CS (Current Sense) - Input from the current sensor at the source of the key.
5 - VCC - Input voltage supply and start of the microcircuit.
6 - OUT (GATE) - Output for controlling the gate (Gate) of the key.

Functionally, these regulators work on the principle of the previously popular xx384x PWM microcircuits, which have proven themselves well in terms of reliability and stability.

Some difficulties often arise when replacing or choosing an analog for such PWM regulators due to the use of code markings in the designation of the type of microcircuits. The situation is complicated by a large number of component manufacturers who do not always provide documentation to the mass access, just as not all manufacturers of finished devices supply repair service centers with diagrams, so repairmen often have to study real circuit solutions by installed components and wiring connections directly on the board.

In practice, PWM microcircuits and the marking code EAxxx and Eaxxx are often found. Official documentation for them was not found in the public domain, but discussions on the forums and pieces of pictures from PDF from System General, which publishes them as SG6848T and SG6848T2, have survived. The drawing is here placed left .


 

For the attention of the masters, here below are PDF datasheet tables compiled from information available on the Internet and PDF documents for the selection of analogues types when replacing the most common six-legged planar PWM with pinout pins: pin1 - GND, pin2 - FB (COMP), pin4 - Sense, pin5 - Vcc, pin6 - OUT ...
Their main difference is the application and purpose of pin 3. 

 

Name	Part Number	Fabricant	Marking
SG6849	SG684965TZ	Fairchild / ON Semi	BBxx
SG6849	SG6849-65T, SG6849-65TZ	System General	MBxx EBxx
SGP400	SGP400TZ	System General	AAKxx

 

 PWM controllers (PWM) with a 95-100 kOhm resistor on pin 3.

When applying the PWM listed below, the frequency should be set with the RT (RI) resistor from pin 3 to ground. Usually its nominal value is chosen 95-100 kOhm for a frequency of 65-100 KHz. For more details, see the here below attached documentation. PDF files are packed in RAR.

 

Name	Part Number	Fabricant	Marking
AP3103A	AP3103AKTR-G1	Diodes Incorporated	GHL
AP8263	AP8263E6R, A8263E6VR	AiT Semiconductor	S1xx
AT3263	AT3263S6	ATC Technology	3263
CR6848	CR6848S	Chip-Rail	848H16
CR6850	CR6850S	Chip-Rail	850xx
CR6851	CR6851S	Chip-Rail	851xx
FAN6602R	FAN6602RM6X	Fairchild / ON Semi	ACCxx
FS6830	FS6830	FirstSemi
GR8830	GR8830CG	Grenergy	30xx
GR8836	GR8836C, GR8836CG	Grenergy	36xx
H6849	H6849NF	HI-SINCERITY
H6850	H6850NF	HI-SINCERITY
HT2263	HT2263MP	HOT-CHIP	63xxx
KP201		Kiwi Instruments
LD5530	LD5530GL LD5530R	Leadtrand	xxt30 xxt30R
LD7531	LD7531GL, LD7531PL	Leadtrend	xxP31
LD7531A	LD7531AGL	Leadtrend	xxP31A
LD7535/A	LD7535BL, LD7535GL, LD7535ABL, LD7535AGL	Leadtrend	xxP35-xxx35A
LD7550	LD7550BL, LD7550IL	Leadtrend	xxP50
LD7550B	LD7550BBL, LD7550BIL	Leadtrend	xxP50B
LD7551	LD7551BL/IL	Leadtrend	xxP51
LD7551C	LD7551CGL	Leadtrend	xxP51C
NX1049	XN1049TP	Xian-Innuovo	49xxx
OB2262	OB2262MP	On-Bright-Electronics	62xx
OB2263	OB2263MP	On-Bright-Electronics	63xx
PT4201	PT4201E23F	Powtech	4201
R7731	R7731GE/PE	Richtek	0Q=
R7731A	R7731AGE	Richtek	IDP=xx
SD4870	SD4870TR	Silan Microelectronics	4870
SF1530	SF1530LGT	SiFirst	30xxx
SG5701	SG5701TZ	System General	AAExx
SG6848	SG6848T, SG6848T1, SG6848TZ1, SG6848T2	Fairchild / ON Semi	AAHxx EAxxx
SG6858	SG6858TZ	Fairchild / ON Semi	AAIxx
SG6859A	SG6859ATZ, SG6859ATY	Fairchild / ON Semi	AAJFxx
SG6859	SG6859TZ	Fairchild / ON Semi	AAJMxx
SG6860	SG6860TY	Fairchild	AAQxx
SP6850	SP6850S26RG	Sporton Lab	850xx
SP6853	SP6853S26RGB, SP6853S26RG	Sporton Lab	853xx
SW2263	SW2263MP	SamWin
UC3863/G	UC3863G-AG6-R	Unisonic Technologies Co	U863 U863G
XN1049	XN1049, XN1049TP	Innuovo Microelectronics	49 xxx

 

 PWM controllers that use pin 3 differently.

When using the following PWM (PWM controllers), you should pay attention to pin 3, which can be used to organize protection - thermal or from overvoltage of the input voltage.
The frequency can be fixed at 65kHz, or set by the value of the capacitor at pin 3.
When replacing any microcircuits with analogs, carefully study the documentation. PDF files are packed in a RAR archive.

 

Name	Part Number	Fabricant	Marking
AP3105/V/L/R	AP3105KTR-G1, AP3105VKTR-G1, AP3105LKTR-G1, AP3105RKTR-G1	Diodes Incorporated	GHN GHO GHP GHQ
AP3105NA/NV/NL/NR	AP3105NAKTR-G1, AP3105NVKTR-G1, AP3105NLKTR-G1, AP3105NRKTR-G1	Diodes Incorporated	GKN GKO GKP GKQ
AP3125A/V/L/R	AP3125AKTR-G1, AP3125VKTR-G1, AP3125LKTR-G1, AP3125RKTR-G1	Diodes Incorporated	GLS GLU GNB GNC
AP3125B	AP3125BKTR-G1	Diodes Incorporated	GLV
AP3125HA/HB	AP3125HAKTR-G1, AP3125HBKTR-G1	Diodes Incorporated	GNP GNQ
AP31261	AP31261KTR-G1	Diodes Incorporated	GPE
AP3127/H	AP3127KTR-G1, AP3127HKTR-G1	Diodes Incorporated	GPH GSH
AP3301	AP3301K6TR-G1	Diodes Incorporated	GTC
FAN6862	FAN6862TY	Fairchild / ON Semi	ABDxx
FAN6863	FAN6863TY, FAN6863LTY, FAN6863RTY	Fairchild / ON Semi	ABRxx
HT2273	HT2273TP	HOT-CHIP	73xxx
LD7510/J	LD7510GL, LD7510JGL	Leadtrend	xxP10 xxP10J
LD7530/A	LD7530PL, LD7530GL, LD7530APL, LD7530AGL	Leadtrend	xxP30 xxxP30A
LD7532	LD7532GL	Leadtrend	xxP32
LD7532A	LD7532AGL	Leadtrend	xxP32A
LD7532H	LD7532HGL	Leadtrend	xxP32H
LD7533	LD7533GL	Leadtrend	xxP33
LD7536	LD7536GL	Leadtrend	xxP36
LD7536R	LD7536RGL	Leadtrend	xxP36R
LD7537R	LD7537RGL	Leadtrend	xxP37R
LD7539C GL	LD7539C GL	Leadtrend	xxP39C
ME8204	ME8204M6G	MicrOne	ME8204xx
NCP1250	NCP1250ASN65T1G, NCP1250BSN65T1G, NCP1250ASN100T1G, NCP1250BSN100T1G	ON Semiconductor	25xxxx
NCP1251	NCP1251ASN65T1G, NCP1251BSN65T1G, NCP1251ASN100T1G, NCP1251BSN100T1G	ON Semiconductor	5xxxxx
OB2273	OB2273MP	On-Bright-Electronics	73xx
R7735	R7735AGE, R7735HGE, R7735GGE, R7735RGE, R7735LGE	Richtek
UC3873/G	UC3873-AG6-R, UC3873G-AG6-R	Unisonic Technologies	U873 U873G

 

 

 

DNS TV S39DB1 with LCD V390HJ1-LE1, diagonal 39 "(99 cm) in 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. Contrast - the ratio of maximum brightness to minimum is 4000: 1. This model uses a panel with backlight LEDs - Edge LED.
The V390HJ1-LE1 sensor and the MainBoard T.MSD309.BA3T software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics decomposition at 1080p (Full HD). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, VGA, HDMI x4, USB. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1360x768, 1920x1080. The digital tuner is capable of receiving television channels in DVB-T, DVB-C, DVB-T2 standards.
The TV uses an ER878 power supply.
Dimensions: With stand 891x585x210 mm, Without stand 891x532x88 mm.
TV weight: 13.2 kg.
Attention! The V390HJ1-LE1 panel of the DNS S39DB1 LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.a

REPAIRING / SERVICING TV DNS S32DST1

Technical description and composition of the DNS S32DST1 TV, panel type and modules used. The composition of the modules.
DNS LED
Model: S32DST1
Chassis / Version: T.MSD309.BA3T
Panel: HV320WX2-201
T-CON: HV320WXC-200_X-PCB-X0.0
LED driver (backlight): integrated into PSU
PWM LED driver: PWM 8pin
Power Supply (PSU): AY066D-4SF
PWM Power: PWM SOT23-6
MOSFET Power: 6N60
MainBoard: T.MSD309.BA3T
IC MainBoard: CPU: MSD309BT, SPI Flash: 25Q32FVS1G, W631GG6KB, Audio: TPA3124D2
Specifications S32DST1
DNS S32DST1
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- TV DNS S32DST1 does not turn on at all. No response to the remote control and front panel control buttons. Indicator lamps do not light up or flash.
Usually with similar manifestations, the defect is caused by faulty elements in the main power module AY066D-4SF. It is necessary to measure its output voltages, and in the event of their absence (full or partial), the serviceability of the power switches of the converters and rectifier diodes should be checked for a possible short circuit.
In case of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and in case of a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of the PWM controller, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) PWM SOT23-6 are usually checked by replacing them with new ones, or known to be working properly.
- There is no picture, but there is sound and reaction to the remote control. Or, for a second, the image may appear immediately after switching on.
Most likely in these cases is a malfunction of the LED panel backlight. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
To check the LED strips for breakage without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter; a voltage of the order of several tens of volts is required.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the T.MSD309.BA3T motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). When repairing an MB board, you need to check its components CPU: MSD309BT, SPI Flash: 25Q32FVS1G, W631GG6KB, Audio: TPA3124D2. Defective elements must be replaced. If chips with BGA soldering technology are used, the problem in its implementation is detected by local heating of the chip.

Remember! Attempts to repair the DNS S32DST1 TV yourself, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!

Additional MainBoard Repair
The appearance of the MainBoard T.MSD309.BA3T is shown in the figure below:
T.MSD309.BA3T
T.MSD309.BA3T can be used in TVs:
DNS M39DM8 (Panel V390HJ1-P02 Rev C1), DNS S29DB1 (Panel V290BJ1-LE1), DNS S39DB1 (Panel V390HJ1-LE1), DNS V40D8200 (Panel LSC400HV02-W05), DNS M32DM8 (Panel V320BJ2-P01), DNS S32DSB1 (Panel T315HB01 V.1), DNS S32DST1 (Panel HV320WX2-201).
External view of the power supply

Main features of the DNS S32DST1 device:
Installed matrix (LED-panel) HV320WX2-201.
The matrix control uses the Timing Controller (T-CON) HV320WXC-200_X-PCB-X0.0.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by a PWM 8pin PWM controller.
The formation of the necessary supply voltages for all nodes of the DNS S32DST1 TV is carried out by the AY066D-4SF power module, or its analogs using PWM SOT23-6 microcircuits and 6N60 type power switches.
MainBoard - the main board (motherboard) is a T.MSD309.BA3T module, using CPU chips: MSD309BT, SPI Flash: 25Q32FVS1G, W631GG6KB, Audio: TPA3124D2 and others.
Additional technical information about the panel:
Brand: BOE
Model: HV320WX2-201
Type: a-Si TFT-LCD, CELL
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: AFFS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Glass Depth: 0.70 + 0.70 mm
Transmissivity: 6.6% (with Polarizer)
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit)
Response Time: 8 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
DNS TV S32DST1 with LCD HV320WX2-201, diagonal size 32 "(81 cm) 16: 9. The required screen brightness of 350 cd / m² is provided by LED backlighting. Contrast - the ratio of maximum to minimum brightness is 2000: 1. This model uses a panel with backlight LEDs - Edge LED.
The HV320WX2-201 sensor and MainBoard T.MSD309.BA3T software provide high quality HD viewing at a resolution of 1366x768 pixels in 720p (HD Ready). The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, MPEG4, DivX, MKV, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, SCART, RGB, VGA, HDMI x4, USB. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768. The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The TV uses the AY066D-4SF power supply.
Dimensions: With stand 735x490x210 mm, Without stand 735x449x65 mm.
TV weight: 7.6 kg.
Attention! The HV320WX2-201 panel of the DNS S32DST1 LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV DNS S32DSB1

Technical description and composition of the DNS S32DSB1 TV, panel type and modules used. The composition of the modules.
DNS LED
Model: S32DSB1
Chassis / Version: T.MSD309.BA5T
Panel: T315HB01 V.1
LED backlight: 73.31T14.004-5-DS1 40 LEDs 361mm 31T14-07A
T-CON: T460HW03 VF CTRL BD
LED driver (backlight): T315HW07 V8 LED DRIVER BD 31T14-D06
PWM LED driver: MAX16814
Power Supply (PSU): MD-F075-0322 (F0014-BE06)
MainBoard: T.MSD309.BA5T // T.MSD309.BA3T
IC MainBoard: CPU: MSD309BT, SPI Flash: 25Q32FVS1G, W631GG6KB, Audio: TPA3124D2
S32DSB1 Specifications
DNS S32DSB1
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- TV DNS S32DSB1 does not turn on at all. No response to the remote control and front panel control buttons. Indicator lamps do not light up or flash.
In some of these cases, the main switching power supply, the MD-F075-0322 module, is faulty. Then you should measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of the power switches and rectifier diodes of the converters for a possible short circuit.
In case of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and in case of a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of the PWM controller, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) are usually checked by replacing them with new ones, or knowingly working.
- There is no image, there is sound, it reacts to the remote control. Or, immediately after switching on for a second, the image may appear and immediately disappear.
The malfunction in most of such cases is found in the nodes and elements of the LED panel backlight. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
When diagnosing, it must be borne in mind that it is impossible to check for an open in the circuit of the LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally a current source. By opening the panel, you can check each LED separately. Typically, Chinese multimeters will lightly light one 3-volt LED if you connect the probes to it in the forward direction. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of the LED health. In the event of a malfunction of the LED, its zener diode will either be cut off, or broken through in the K / Z.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the T.MSD309.BA5T motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Complicated repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace elements 25Q32FVS1G, W631GG6KB. Malfunctions in BGA chips are usually easy to detect by warm-up.

To reduce the backlight current in LED drivers with a MAX16814 PWM controller (TSSOP20 MAX16814B), the total resistance of the resistors from pin 10 (SETI) to the package must be proportionally increased. The maximum current in each of the four channels (in milliamperes) for the resistance Rseti (in kilo-ohms) is determined from the ratio 1500 / Rseti.

Attention to users! Self-repair of the DNS S32DSB1 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   DNS S32DSB1, Main: T.MSD309.BA5T,


DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   DNS S32DSB1, Main: T.MSD309.BA3T, Panel: T315HB01 V.1


 DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    Chassis MSD309B Schematic diagram

 The appearance of the MainBoard T.MSD309.BA5T is shown in the figure below:
T.MSD309.BA5T
T.MSD309.BA5T can be used in TVs:
DNS V40D8200 (Panel LSC400HV02-W05), DNS V32D2500 (Panel TY315LK12-ACW1 V315H3-CPE6), DNS S32DSB1 (Panel T315HB01 V.1), DNS S39DSB1 (Panel V390HJ1-LE1).
Main features of the DNS S32DSB1 device:
Installed matrix (LED panel) T315HB01 V.1.
Matrix control uses the T460HW03 Timing Controller (T-CON).
The LED driver T315HW07 is used to power the backlight LEDs, it is controlled by the PWM controller MAX16814.
The formation of the necessary supply voltages for all nodes of the DNS S32DSB1 TV is carried out by the MD-F075-0322 power module, or its analogs.
MainBoard - the main board (motherboard) is a T.MSD309.BA5T module, using CPU chips: MSD309BT, SPI Flash: 25Q32FVS1G, W631GG6KB, Audio: TPA3124D2 and others.
DNS TV S32DSB1 with LCD T315HB01, diagonal size 32 "(81 cm) 16: 9. The required brightness of the screen of 400 cd / m2 is provided by LED backlighting. Dynamic contrast ratio of 5000: 1 is achieved by special control of the LED operation depending on the illumination This model uses a panel with edge-mounted backlight LEDs - Edge LED.
There is support for 3D images using passive polarization technology.
The T315HB01 V.1 matrix and the MainBoard T.MSD309.BA5T software provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphics resolution at 1080p (Full HD).
S32DSB1 has built-in SMART software and pre-installed Android operating system. Internet connection can be made via Wi-Fi wireless connection. The input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, VGA, HDMI x4, USB x3, Ethernet (RJ-45), Wi-Fi. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1360x768, 1920x1080. The digital tuner is capable of receiving television channels in DVB-T, DVB-C, DVB-T2 standards.
The TV uses the MD-F075-0322 AC adapter.
Dimensions: With stand 755x510x180 mm, Without stand 755x460x85 mm.
TV weight: 10 kg.
Attention! Panel T315HB01 V.1 LED TV DNS S32DSB1 is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.