Technical description and composition of the SUPRA STV-LC39660FL TV, panel type and modules used. The composition of the modules.SUPRA LED
Model: STV-LC39660FL
Chassis / Version: v1m02 // V1L10
Panel: V390HJ1 rev.c1 SEL390V7-S00D
LED driver (backlight): 168P-P39DWM-HCW1 - 168P-P39DWM-W1
PWM LED driver: OZ9967GN
MOSFET LED driver: ME15N10-G
Power Supply (PSU): 168P-P39EQL-HCW1 // 168P-P39EQL-W1
PWM Power: TEA1733
MOSFET Power: 2SK3673
MainBoard: 5800-A8M480-0P20 ver. 00.08 // 5800-A8M480-0P10 2012-05-05 ver.00.07
IC MainBoard: CPU: MST6E182VG, FLASH: CFEON032B-104H1P (25Q32)
Tuner: ET-9Z2E-CF106H
STV-LC39660FL Specifications
SUPRA STV-LC39660FL
General recommendations for TV LCD LED repair
Repair and diagnostics of any electronic device, in particular SUPRA STV-LC39660FL, it is advisable to begin with a careful external examination of the internal and external elements. Based on visible external changes in the state of components, it is usually possible to determine the further direction of troubleshooting and localization of a defect before taking the necessary measurements. If ring cracks are found in the soldering of the element terminals or broken connecting paths, swollen capacitors or charred resistors - all this may be characteristic signs of the causes or consequences of an already known typical malfunction.
Malfunctions of the 168P-P39EQL-HCW1 power supply module can be expressed in different ways, for example, SUPRA STV-LC39660FL does not turn on at all and the control lamps on its front panel do not light up or blink, all signs of operability are missing. It should be noted that the processor power regulator (converter) may be faulty with the same external manifestations. In the absence of swollen capacitors of the secondary rectifier filter, diagnostics of the power supply should begin with checking the fuse and, if it breaks, it is necessary first of all to check all power semiconductor elements of the primary circuit - diodes and transistors for the likelihood of an avalanche or thermal breakdown.
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 components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM microcircuit is checked by replacing it with a known good one.
Sometimes the SUPRA STV-LC39660FL TV does not have a picture, but there is sound, or the picture appears and immediately disappears. In this case, there is a high probability of malfunction of the SEL390V7-S00D V390HJ1rev.c1 panel backlight LED converter, or an open circuit in the LED circuit is possible. In such cases, first of all, it is necessary to make sure that all electrolytic capacitors of the filter are in good working order for the power supply of the LED driver itself, including the power supply unit (power supply unit).
It is often necessary to disassemble the panel to check the health of the LEDs, as well as the contact connections in the connectors and solders.
It should be remembered that it is not possible to determine an open circuit in the LED lines without disassembling the panels using a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
If 5800-A8M480-OP20 ver. 00.08, first of all it is necessary to check all linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes it is possible to check the health of the MB only by replacing it.
In some cases, the elements of the MB (SSB) board require checking or replacing (if necessary) - CPU: MST6E182VG-LF-Z, FLASH: CFEON032B-104H1P. In cases where a BGA processor is used, its malfunction is usually detected by the local warm-up method.
If there is no reception of television channels, but the TV is working properly from external devices, first of all, you need to check the supply voltage of the varicaps of the ET-9Z2E-CF106H tuner, which is usually in the range of 30-33V, as well as other supply voltages at the tuner terminals.
Owners and users of the SUPRA STV-LC39660FL TV should remember that self-repair without special knowledge, skills and qualifications may be fraught with negative consequences that can lead to complete non-repairability of the device!
Entering the service mode: press the SOURCE button from the remote control, then dial 3195. Exit - MENU.
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> STV-LC39660FL 25Q32
The MainBoard is shown in the figure below:5800-A8M480-0P20
5800-A8M480-0P20 can be used in TVs:
AIWA 32LE6110 (Panel T320HVN01.V2), SUPRA STV-LC39660FL (Panel V390HJ1 rev.c1 SEL390V7-S00D ), SUPRA STV-LC32660FL (Panel T320HVN01.V2), SUPRA STV-LC42660FL00 (Panel LC420EUN (SE)(F1)).
External view of the power supply
Main features of SUPRA STV-LC39660FL device:
Installed matrix (LED-panel) V390HJ1 rev.c1 SEL390V7-S00D.
The LED driver 168P-P39DWM-HCW1 is used to power the backlight LEDs, controlled by the PWM controller OZ9967GN. The keys of the ME15N10-G type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC39660FL TV is carried out by the 168P-P39EQL-HCW1 power module, or its analogs using TEA1733 microcircuits and 2SK3673 power switches.
MainBoard - the main board (motherboard) is a 5800-A8M480-0P20 module, using CPU chips: MST6E182VG, FLASH: CFEON032B-104H1P (25Q32) and others.
Tuner ET-9Z2E-CF106H provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V390HJ1-LE6
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 1%), Hard coating (3H)
Brightness: 350 cd / m²
Contrast Ratio: 3500: 1
Display Colors: 16.7M (8-bit), CIE1931 68%
Response Time: 8.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
SUPRA LED TV STV-LC39660FL with LCD V390HJ1, 39 "(99 cm) diagonal, 16: 9. The required brightness of the screen 350 cd / m² is provided by LED backlight. Dynamic contrast ratio of 100,000: 1 is achieved by special control of LED operation depending on the illumination of the areas in the scene.This model uses an LED panel with an edge LED backlighting - Edge LED.The TV capabilities provide viewing of programs 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 digital signal formation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, MPEG4, MKV, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. Uses NICAM stereo signal processing system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, VGA, HDMI x3, USB x2. 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, 1024x768, 1280x1024, 1360x768, 1920x1080.
The power consumed by the TV in operating mode from the network is 120 watts.
Overall dimensions: 985x645x170 mm.
TV weight: 16.5 kg.
Attention! Panel V390HJ1 rev.c1 of SUPRA STV-LC39660FL LED TV is an expensive and unreliable element.
Do not allow any impacts 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 non-repairable.