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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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Friday 24 January 2020

REPAIR / SERVICING TV PHILIPS 32PFL5008T

Technical description and composition of the PHILIPS 32PFL5008T TV, type of panel and applicable modules. The composition of the modules.
PHILIPS LED
Model: 32PFL5008T / 60
Chassis / Version: TPM10.1E LA
Panel: LC320EUE (FF) (F1) code 189 p / n: 932229831682
LED driver (backlight): integrated into PSU
PWM LED driver: PF7900S, PF7700A
Power Supply (PSU): 715G5793-P01-000-002M 996590004194
PWM Power: PF6200 (PWM flyback)
MainBoard: 715G5713-M0E-000-005N 705TQDSCN265TQ 996590004197
IC MainBoard: AZ1084, GH17M 246NJ2, 54519 (16) DC-DC
Tuner: TDSY-G230G
Specifications 32PFL5008T
PHILIPS 32PFL5008T
General repair guidelines for TV LCD LED
Repair and diagnostics of any electronic device, in particular PHILIPS 32PFL5008T / 60, it is advisable to start with a careful external examination of internal and external elements. Many visible changes in the state of the elements make it possible to determine the further direction of troubleshooting and localization of the defect. Electrolytic capacitors of filters with a swollen casing, as well as ring cracks formed in the soldered leads of heating elements, or a layer of coal on burnt resistors sometimes tell the repairman the causes of the malfunction and possible consequences.
In the absence of any signs of operability, when the PHILIPS 32PFL5008T does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the power supply module 715G5793-P01-000-002M 996590004194 of the TV. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller chip are subject to verification, which it is desirable to verify by replacement.
Sometimes the PHILIPS 32PFL5008T TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the converter for the backlight LEDs of the panel 932229831682 code 189, or a break in the LED circuit is possible. In such cases, first of all, it is necessary to verify the serviceability of all the electrolytic capacitors of the filter by supplying the LED driver itself, including in the power supply unit (power supply unit).
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.
An open in the LED lines connected in series cannot be detected using a multimeter or tester without disassembling the panel. To open all the transitions, several tens of volts are needed, and it is best to use a current source for such purposes.
On the motherboard 715G5713-M0E-000-005N 705TQDSCN265TQ 996590004197, 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).
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Testing or replacing elements AZ1084, GH17M 246NJ2, 54519 (16) DC-DC requires the necessary training and professional skills in repairing modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
If there is no reception of television channels, but the TV works properly from external devices, first of all it is necessary to check the voltage of the varicap tuner TDSY-G230G, which is usually within 30-33V, as well as other supply voltages at the terminals of the tuner.
Attention! For users and owners of 32PFL5008T TVs who do not have the appropriate qualifications, knowledge and experience, we strongly recommend against attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.


Service manual and schematic diagram  32PFL5008T/60 Chassis TPM10.1E LA part1, part2, part3


 The appearance of MainBoard 715G5713-M0E-000-005N is shown in the figure below:
715G5713-M0E-000-005N
715G5713-M0E-000-005N can be used in TVs:
PHILIPS 32PFL5008T/60 (Panel LC320EUE (FF)(F1) code 189 p/n: 932229831682), PHILIPS 46PFL4208T/60 (Panel TPT460H1-HM01 REVC1F), PHILIPS 50PFL5028T/60 (Panel LC500EUE-FFF1 code 192 p/n: 932229834682), PHILIPS 32PFL4418T/60 (Panel LTA320HJ06).
The appearance of the power supply
Main features of the PHILIPS 32PFL5008T device:
Installed matrix (LED panel) LC320EUE (FF) (F1) code 189 p / n: 932229831682.
To power the backlight LEDs, a converter is used, combined with the power supply, it is controlled by the PF7900S, PF7700A PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 32PFL5008T TV are generated by the 715G5793-P01-000-002M power module, or its analogs using PF6200 microcircuits (PWM flyback).
MainBoard - the main board (motherboard) is a module 715G5713-M0E-000-005N, using microchips AZ1084, GH17M 246NJ2, 54519 (16) DC-DC and others.
The TDSY-G230G tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: LG Display
Model: LC320EUE-FFF1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: IPS, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 1%), Hard coating (2H)
Brightness: 350 cd / m²
Contrast Ratio: 1400: 1
Display Colors: 16.7M (8-bit), CIE1931 68%
Response Time: 6 (G to G)
Frequency: 60Hz
Lamp Type: 9S5P WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V