Technical description and composition of the TV SHARP LC-13SH1, type of panel and applicable modules. The composition of the modules.SHARP
Model: LC-13SH1
Panel: 13 inch 921,600 dots VGA
Inverter (backlight): integrated into PSU
MOSFET Inverter: 2SC6000
Trans Inverter: ZA073WJ
Power Supply (PSU): DUNTKC857WE
PWM Power: STR-W6765N
MainBoard: KC860WE
IC MainBoard: TDA15521E / N1B80, IX3251CE (TDA9178), MM1563DF, THC63LVDF84B, THC63LVDF84B, IXA370WJ, BD8120FP, 24C64, TDA15521E / N1B80
Tuner: 1Y5ED501 (VTUVT1Y5ED501)
Control: GA339WJ8A
Technical Specifications LC-13SH1E
SHARP LC-13SH1
General recommendations for repairing TV LCD
TV SHARP LC-13SH1, like any other, it is advisable to start repairing it by inspecting the internal and external visible physical visual changes. In some cases, visible external damage to the elements can suggest directions for troubleshooting and localizing the defect before starting the necessary measurements at the control points of the nodes of electronic circuits. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
Malfunctions of the power module can be expressed in different ways, for example, SHARP LC-13SH1 does not turn on at all and the control lamps 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, you must 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 key.
If a breakdown of the power switch of the flyback converter of the power supply unit is detected, it should be remembered that it does not fail for no reason, which should be sought by checking other elements of the primary circuit - electrolytic capacitors, PWM controller STR-W6765N, which can only be checked by replacement, and also other semiconductor elements (diodes, transistors, zener diodes).
If the power module uses an active KKM circuit (power factor control), troubleshooting is somewhat more complicated.
If the SHARP LC-13SH1 has no image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
Diagnostics of the inverter can be difficult due to the operation of the protection, which is organized by the designers to prevent negative consequences or fires in emergency cases, for example, during short circuits or breaks in the lamp power supply circuit, as well as their possible depressurization. To make the necessary measurements at control points or to take the necessary waveforms, repairmen have to block the protection circuits in order to be able to diagnose.
In such cases, the risk of failure of the power elements of the inverter is most likely, and special care is required during work, and after their completion, it is necessary to restore the protection circuit for further safe operation of the TV by the owner in normal mode.
When repairing an MB board, you need to check its components TDA15521E / N1B80, IX3251CE (TDA9178), MM1563DF, THC63LVDF84B, THC63LVDF84B, IXA370WJ, BD8120FP, 24C64, TDA15521E / N1B80. Defective items should be replaced.
The 1Y5ED501 tuner malfunction is established after checking the software and all the supply voltages at its terminals, including the varicap supply voltage (30-33V).
Once again, remind users! Attempts at self-repair of the SHARP LC-13SH1 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Service Manual with Schematic Diagram ---------------> SHARP LC-13SH1E, LC-15SH1E
LC-13SH1E, LC-15SH1E
The appearance of the MainBoard KC860WE is shown in the figure below:KC860WE
KC860WE can be used in TVs:
SHARP LC-13SH1 (Panel 13 inches 921600 dots VGA), SHARP LC-15SH1E (Panel LQ150V3Z50), SHARP LC-15SH2E (Panel LQ150V3FZ40).
The appearance of the power supply
Main features of the SHARP LC-13SH1 device:
Installed matrix (LCD-panel) 13 inches 921,600 dots VGA.
To power the backlight, a converter is used, combined with a power supply. The transformer ZA073WJ is installed in the inverter converter. As power elements of the inverter, keys of the 2SC6000 type are used.
The necessary supply voltages for all nodes of the SHARP LC-13SH1 television are generated by the DUNTKC857WE power module or its analogs using STR-W6765N microcircuits.
MainBoard - the main board (motherboard) is a KC860WE module using TDA15521E / N1B80, IX3251CE (TDA9178), MM1563DF, THC63LVDF84B, THC63LVDF84B, IXA370WJ, BD8120FP, 24C64, TDA155, and other chips.
The tuner 1Y5ED501 (VTUVT1Y5ED501) provides the reception of television programs and tuning to channels.
Information from an alternative source:
SHARP LC-13SH1 CPU - TDA15521E/N1B80, EPROM - 39VF010, EEPROM - 24C64, SMPS - STR-W6765N, SAW - K3953M & K9456M, Tuner - 1Y5ED501, IC1101 - BD8120FP, IC1201 - IXA370WJ, IC2201 - THC63LVDF84B, IC702 - MM1563DF, IC801 - IX3251CE (TDA9178)
Remote control: - GA339WJ8A Service Manual, add-ons,
