REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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Thursday 23 January 2020

REPAIR / SERVICING TV PHILIPS 32PFL3107H

Technical description and composition of the PHILIPS 32PFL3107H TV, type of panel and applicable modules. The composition of the modules.
PHILIPS LED
Model: 32PFL3107H / 60
Chassis / Version: TPM9.2E LA
Panel: LTA320AP3 300
LED driver (backlight): SSL320_0D3A
PWM LED driver: TR10E1, A358F
MOSFET LED driver: SDB10200DI (Diode), DD86102
Power Supply (PSU): 715G5194-P02-W20-002M
PWM Power: LD7523GS, A6069H, PF7900S, PF7700S
MainBoard: 715G5155-M1C-002-005K - 996590002518
IC MainBoard: MT5366ZVGG, H5TQ1G63DFR-H9C, TMDS361BPAGR
Tuner: ENV57U09D5F
Specifications 32PFL3107H
PHILIPS 32PFL3107H
General repair guidelines for TV LCD LED
PHILIPS 32PFL3107H / 60, like other televisions, it is advisable to start repairing with a careful examination of the external and internal elements and modules. Many visible changes in the state of the elements make it possible to determine the further direction of troubleshooting and localization of the defect. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
In cases where the PHILIPS 32PFL3107H TV does not turn on, does not respond to the remote control and buttons, any indicators on the front panel do not light up or blink, and there are no sounds or any signs of operability when turning on, the power supply module 715G5194-P02-W20 is most likely faulty -002M 996510051098 ?? or there is no power to the processor on the motherboard (a typical defect of some PHILIPS TV models). First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is cut off in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the PHILIPS 32PFL3107H does not have an image, but there is sound and the TV is controlled by the remote control, there may be a malfunction in the backlight circuits of the LTA320AP3 300 panel. The LEDs or the power converter - LED driver may be malfunctioning. 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 LED driver, and check the LEDs, connecting obviously known good diagnostics.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with 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.
On the motherboard 715G5155-M1C-002-5K 996590002518, in the event of a malfunction, you should first check the operation of all the stabilizers or power converters of the microcircuits and, if necessary, update the software (software).
The malfunction of the tuner ENV57U09D5F is established after checking the software and all the supply voltages at its terminals, including the voltage of the varicaps (30-33V).
Attention to users! Do-it-yourself TV repair PHILIPS 32PFL3107H without the appropriate qualifications and experience can lead to its complete non-repairability!


 Service manual and schematic diagram 32PFL3107H/60 Chassis TPM9.2E LA

 32PFL3517H/12, 32PFL3507K/02, 32PFL3517K/02, 37PFL3507H/12, 37PFL3507K/02, 42PFL3507H/12, 42PFL3507K/02


 The appearance of the MainBoard 715G5155-M1C-002-005K is shown in the figure below:
715G5155-M1C-002-005K
The appearance of the power supply
Main features of the PHILIPS 32PFL3107H device:
Installed matrix (LED-panel) LTA320AP3 300.
To power the backlight LEDs, the SSL320_0D3A LED driver is used, it is controlled by the TR10E1, A358F PWM controller. As power elements of the LED driver, keys of the type SDB10200DI (Diode), DD86102 are used.
The necessary supply voltages for all nodes of the PHILIPS 32PFL3107H TV are generated by the power supply module 715G5194-P02-W20-002M, or its analogs using microcircuits LD7523GS, A6069H, PF7900S, PF7700S.
MainBoard - the main board (motherboard) is a module 715G5155-M1C-002-005K, using microchips MT5366ZVGG, H5TQ1G63DFR-H9C, TMDS361BPAGR and others.
The ENV57U09D5F tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA320AP31-W01
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-PVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 2%), Hard coating (2H)
Brightness: 430 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 20 (Tr + Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V