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........ . . . . . .....
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Saturday, 8 February 2020

REPAIRING / SERVICING TV PHILIPS 22PFL3507T

Technical description and composition of the PHILIPS 22PFL3507T TV, type of panel and applicable modules. The composition of the modules.
PHILIPS LED
Model: 22PFL3507T / 60
Chassis / Version: TPM9.3E LA
Panel: M215HW03 V.1 code 174 p / n: 996590001935 code 160 932228935682
LED driver (backlight): 715G5309-P01-W21-002S // 715G309-P0A-W21-0020 996590000008
Power Supply (PSU): 715G5309-P01-W21-002S 996590002252
MOSFET Power: TK6A65D
MainBoard: 715G5155-M01-002-005X Ver A 996590002251, 996590001349
IC MainBoard: 715G5230 R02-000-004S, G1084-3.3, AZ1117D adj,
Tuner: Panas ENV57U04D8F, LG TDTK-G631D
Control: 398GR8BD8NTPHT 1250013056
Technical Specifications 22PFL3507T
PHILIPS 22PFL3507T
General repair guidelines for TV LCD LED
Diagnostics of malfunctions and repairs of PHILIPS 22PFL3507T / 60, as well as other electronic devices, is recommended to begin with an external examination of the external and internal elements. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements are taken. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
Sometimes the PHILIPS 22PFL3507T TV simply does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most probable cause of the malfunction is the failure of the general power supply module 715G5309-P01-W21-002S 996590002252. If it is working properly, you need to check the processor batteries on the SSB (Main Board). Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
In most cases, key breakdowns in switching power supplies (SMPS) do 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 6A65D chip from the manufacturer.
If, when you turn on the TV, the image appears and immediately disappears, or is missing initially when you turn on, but the sound has other functions that work, there is a high probability of a malfunction of the LED driver (power converter for the backlight LEDs of the panel M215HW03 V.1 996590001935 code 174 code 160 932228935682). In such cases, the general power module is also subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the LED driver should be checked.
A malfunction in the backlight circuits often occurs due to an open in the power circuit of the LED lines. It requires disassembling the panel and checking the LEDs themselves, the rations of their terminals, as well as the reliability of the connections in the connectors and rations of the terminals.
A break in the line of LEDs connected in series cannot be detected with 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.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update the software (software).
When repairing the MB board, it is necessary to check its components 715G5230 R02-000-004S, G1084-3.3, AZ1117D adj,. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
If the TV works normally from external devices, but does not tune into television channels, the tuner Panas ENV57U04D8F, LG TDTK-G631D may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the power supply of varicaps (30-33V).
Remember! Attempts to self-repair by users of the PHILIPS 22PFL3507T TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!


Service manual and schematic diagram 22PFL3507T/60 Chassis TPM9.3E LA

MODELS:  19PFL3507H, 19PFL3507T, 22PFL3507H, 22PFL3507T, 22PFL3517H, 22PFL3517T, 22PFL3557H, 24PFL3507H, 24PFL3507T


 The appearance of the MainBoard 715G5155-M01-002-005X is shown in the figure below:

715G5155-M01-002-005X
715G5155-M01-002-005X can be used in TVs:
PHILIPS 22PFL3507T/60 (Panel M215HW03 V.1 code 174 p/n: 996590001935 code 160 932228935682), PHILIPS 24PFL3507T/60 (Panel M236HGE-L20 code 161 p/n: 996590000202), PHILIPS 32PFL3517/60 (Panel LC320EUE (SE)(M1) code 156 p/n: 932228889682), PHILIPS 37PFL3507T/60 (Panel LC370EUE (SE)(M1)), PHILIPS 42PFL3007H/60 (Panel LC420WUE (SC)(A1) code 152 p/n: 932228942682), PHILIPS 32PFL3517H/60 (Panel LC320EUE (SE)(M1)).
The appearance of the power supply
Main features of the PHILIPS 22PFL3507T device:
Installed matrix (LED panel) M215HW03 V.1 code 174 p / n: 996590001935 code 160 932228935682.
The LED driver 715G5309-P01-W21-002S is used to power the backlight LEDs.
The necessary supply voltages for all nodes of the PHILIPS 22PFL3507T TV are generated by the 715G5309-P01-W21-002S power module, or its analogs using power switches of the TK6A65D type.
MainBoard - the main board (motherboard) is a 715G5155-M01-002-005X module, using 715G5230 R02-000-004S, G1084-3.3, AZ1117D adj, and others.
Tuner Panas ENV57U04D8F, LG TDTK-G631D provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: M215HW03 V1QA
Type: a-Si TFT-LCD, Panel
Diagonal size: 21.5 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 476.64x268.11 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC)
Response Time: 3.8 / 1.2 (Tr / Td)
Frequency: 60Hz
Lamp Type: 16S4P WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V