Technical description and composition of the TV SHIVAKI STV-15L3, type of panel and applicable modules. The composition of the modules.SHIVAKI
Model: STV-15L3
Chassis / Version: BLM13CE-005
Panel: HT150X02-100
Inverter (backlight): P060008A IV02B04D V01 // SFP1521E55-VER1.0
PWM Inverter: BIT3102 (8H) Inv.// BIT3193G
MOSFET Inverter: AO D606 (5)
Trans Inverter: STH-190-027
Power Supply (PSU): Adapter SAWA-01-409 12v 4A
PWM Power: MSP1250G
MOSFET Power: YB 645 (4n PL)
MainBoard: PA20175-2-3TG // PA20175-2-52G 2007.11.16
IC MainBoard: TDA15021H / N1C00 TSU36AWVJ-LF-1 24C16 TDA7268 AN17825A MSP12500-5.0 AN17825
Tuner: TDQ-6F6 / 126D
Control: BT-0451C ... CBG
Technical Specifications STV-15L3
SHIVAKI STV-15L3
General recommendations for repairing TV LCD
It is advisable to start any repair and diagnostics of the SHIVAKI STV-15L3 TV with a careful external examination of internal and external elements, including case parts, a display, buttons and cables. It often happens that some damage to elements or connections will help determine the correct direction of troubleshooting and localization of the defect. Experienced repairmen are often aware of the causes of the defect and possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
Malfunctions of the AC adapter SAWA-01-409 12v / 4A power supply module can be expressed in different ways, for example, SHIVAKI STV-15L3 does not turn on at all and the control lights on its front panel do not light up and do not blink, there are no signs of operability. When diagnosing and repairing the power supply, first of all, it is necessary to check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module - rectifier diodes or power switch YB 645 (pl 4n).
In most cases, a breakdown of the N-Fet converter key does not occur for no reason and you should look for other faulty circuit elements that could provoke a defect. This can be dried electrolytic capacitors in the primary circuit, and faulty damper elements, as well as dangling resistors or punched semiconductor elements in the stabilization circuits. Possible defective PWM chip adapter 12v MSP1250G -5.0 DC / DC from the manufacturer.
In cases using a power module with an active KKM, troubleshooting is sometimes somewhat more complicated.
If the SHIVAKI STV-15L3 does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter 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 verify the operability of the electrolytic capacitors of the rectifier filter supplying the inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors.
In most cases, the diagnosis and repair of the P060008A IV02B04D V01 // SFP1521E55-VER1.0 inverter is difficult due to the organization of protection, which turns it off in emergency cases to avoid fires during short circuits or open circuits in high voltage circuits and during depressurization of lamps. Often, repairmen block the protection circuits in order to make the necessary measurements at the control points of the inverter to identify the causes of the defect.
Turning off the protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all regular protection circuits should be restored.
Repair or diagnostics of the motherboard PA20175-2-3TG // PA20175-2-52G 2007.11.16, you must start by checking the power stabilizers. If necessary, you should update the software (software). Board repair and replacement of TDA15021H / N1C00, TSU36AWVJ-LF-1, 24C16, TDA7268 AN17825A, MSP12500-5.0, AN17825 microcircuits are carried out with the necessary equipment, and the corresponding element base.
Once again, remind users! Attempts to self-repair a TV SHIVAKI STV-15L3 without the appropriate qualifications and experience can lead to its complete non-repairability!
Main features of the SHIVAKI STV-15L3 device:Installed matrix (LCD panel) HT150X02-100.
To power the backlight, an inverter P060008A is used, it is controlled by the BIT3102 (8H) PWM controller inv.// BIT3193G. The transformer STH-190-027 is installed in the inverter converter. As power elements of the inverter, keys of the type AO D606 (5) are used.
To power all the internal components of the SHIVAKI STV-15L3 TV, an external adapter type SAWA-01-409 12v 4A is used using MSP1250G microcircuits and power switches of the YB 645 type (4n PL).
MainBoard - the main board (motherboard) is a PA20175-2-3TG module, using TDA15021H / N1C00 TSU36AWVJ-LF-1 24C16 TDA7268 AN17825A MSP12500-5.0 AN17825 chips and others.
The TDQ-6F6 / 126D tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: BOE
Model: HT150X02-100
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.0 inch
Resolution: 1024x768, XGA
Display Mode: TN, Normally White, Transmissive
Active Area: 304.128x228.096 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 500: 1
Display Colors: 16.2M (6-bit + FRC), CIE1931 60%
Response Time: 2/6 (Tr / Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 20 pins
Voltage: 3.3V
TV SHIVAKI STV-15L3 with an LCD display HT150X02-100, diagonal size 15 "format 4: 3. The brightness of the screen 250 cd / m² is provided with backlight fluorescent lamps CCFL (EEFL). Contrast, as the ratio of maximum brightness to minimum, is 500 : 1. The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation takes place in the standards 480i, 480p, 576i, 576p. Stereo sound is realized by two built-in speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, SCART, RGB, VGA. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
Overall dimensions: With a support of 540x440x200 mm, Without a support of 540x410x80 mm.
Attention! The SHIVAKI STV-15L3 LCD TV panel HT150X02-100 is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!
