PHILIPS TV Repair: Common Faults and Solutions.
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Results: 14171
Results: 14171
PHILIPS Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS | 20PT4331 /78R - CHASSIS L03 | RGB return lines on top when powering on. | - check capacitor 2460 (see service information ts04-016). | ||
| PHILIPS | 20PT4331 /78R - CHASSIS L03 | Return lines when calling. | - verificar capacitor 2460 (68nf 100v). | ||
| PHILIPS | 20PT4331 /78R - CHASSIS L03 | Turns on randomly - exits the stby function without command. | - this symptom may occur at low temperatures in some versions of ci 7200.modification (see figure):1) remove the 5601 coil (5.6µh) and replace it with a bat85 diode (code 4806 130 37364) (cathode for pin 54 ),2) raise resistor 3618 (+3.3v side),2) solder a wire from the diode cathode to resistor 3618. | ||
| PHILIPS | 20PT4331 /78R - CHASSIS L03 | Interference with sound or image on other devices when stb. | - remove 1nf capacitor position 2585. if the product's power supply is 220v, the fet 7521 must be checked for models with 14"" transistor fet fqpf6n80 (9322 187 17687) and for models with 20 and 21"" transistor fet fqpf7n80 (9322 174 27687). | ||
| PHILIPS | 20PT4331 /78R - CHASSIS L03 | Turn off inter. or protect (rew 3 for vcr). | - check possible failure in resistor 3475 (10k), frame_out information line. | ||
| PHILIPS | 20PT4331 /78R - CHASSIS L03 | Colored outlines in the image (rgb). | - check capacitors 2300 (red), 2301 (green), 2302 (blue). | ||
| PHILIPS | 20PT4331 /78R - CHASSIS L03 | Appears dos/menu/characters/message - flashing. | - if the power supply uses the fet transistor fqpf7n80 in position 7521, the TV has difficulty turning on, sometimes it turns on and shows the message: err 576lo3lsi2.2 00000 000 192 064 224 072 000 080, capacitor 2585 must be eliminated. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Vertical closing intermittent. | - check for possible changes (leakage) in capacitor 2461 (cap cer smd 1nf). | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Vertical with little amplitude | - check capacitors 2245 and 2248. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Goes to stand by after some time. | - dark band appears at the bottom after some time of switching on and then switching off, check possible leak in capacitor 2625, see details of the diagram in section a5 features & connections. - check service information ts04-024 and ts04-027. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Dark screen - no image or active progressive | - check possible changes to smd resistors 3475 and 3467.- check possible changes to smd resistors 3351, 445 and 3457.- check transistor 7405.- check socket 1254.- check coil 5352. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Dark shadows covering the screen. | - check possible cold solders on the cables for the trc panel. - check possible changes to capacitors 2406, 2451 and resistor 3412. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Sound goes down on its own, on TV it switches stereo/mono. | - enter service mode and change the following memory addresses: 162 from 3 to 5163 from 9 to 11, if this does not resolve the change in the above data, change address 168 from 10 to 12 or 13. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Sem som em lii (sap) | - enter service mode and change the following memory addresses: 164 from 3 to 2165 from 9 to 10. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Noise in the Audio due to signal deviation from the relay. | - apply software version l4lls1-aug25. The update file is available on the page (www.servicephilips.com.br/downloadsupdatesoft.asp). important!!! after the software update, enter service mode using the sequence 062596 osd, check if the new "software" l4lls1-aug25 is already loaded, enter the nvm editor function select the memory address 1021(dec) and change from ff to 01. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Clock running late | - this occurs when using a software version below 1.4, the current version is 1.9d. In this case, it is necessary to correct the software version using the IIC interface (consult support). | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Does not turn on via remote control. | - check possible leak in capacitor 2213. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Does not work (it remains switched off). | - check capacitor 2454, 2460 and 2621.- check transistor 7405.- check possible change in capacitor 2512.- check capacitor 2564.- check ci 7511 (tea1620).- check position lack of solder 5531.- check possible change in capacitor 2532 .- check possible alteration of diode 6533 or 6534. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Does not correct east-west | - check whether the resistor 3425 or 3497 is open or altered, if not, check the polarization voltages of the transistors: 7406, 7410, 7411 and 7484. | ||
| PHILIPS | 29PT5642 /78 - CHASSIS L04 | Stand by LED does not light up (device off) | - check flex cable position 1693 and diode 6691. |