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 | 29PT4640 /78 - CHASSIS L01.1L AC | Turns off immediately after turning on. | - measure the voltage vbat (130v), if not available, then disable the protection circuit (short between base and emitter on transistor 7573) and check the deflection circuit. | ||
| PHILIPS | 29PT4640 /78 - CHASSIS L01.1L AC | Turn off inter. or protect (rew 3 for vcr). | - check audio ci 7901.- check diode 6449.- check capacitor 2455 (47µf) in the horizontal "driver" circuit. | ||
| PHILIPS | 20PT428A L01.2L AL | Vertical closing intermittent. | - check smd capacitors 1nf 50v position 2252 and 2253. - check possible changes in one of the smd capacitors 2475 and 2477 (470pf). | ||
| PHILIPS | 20PT428A L01.2L AL | Vertical with little amplitude | - enter service mode and check geometric alignment. | ||
| PHILIPS | 20PT428A L01.2L AL | Voltages above specified | - mainsupply ]95v, check capacitors 2540 (10nf), 2563 (1n5), resistor 3543 (82k) and diode 6566 (bas16). | ||
| PHILIPS | 20PT428A L01.2L AL | Voltages below the specified (vo, +b,..) | - go with +95v low, check zener diode 6540 (bzx79 b6v2). | ||
| PHILIPS | 20PT428A L01.2L AL | Dark screen - no image or active progressive | - check transistor 7409 (bc857b) for leakage. - check capacitor 2233 (820pf). | ||
| PHILIPS | 20PT428A L01.2L AL | Intermittent sound (crashes, hiccups) or no sound. | - check possible alteration of capacitor 2619. | ||
| PHILIPS | 20PT428A L01.2L AL | Intermittent sound (crashes, hiccups) or no sound. | - check capacitor 2235 (1nf). | ||
| PHILIPS | 20PT428A L01.2L AL | Noisy or frying sound | - check, add, replace capacitor 2950 (390pf). - check capacitor 2235 (1nf). - replace deemphasis filter components: 2228 330pf, 2227 1n2 and 3232 3k9. | ||
| PHILIPS | 20PT428A L01.2L AL | So fica em stand by (power off). | - verificar resistor 3404 (resistor 6, 8r 0, 33w), capacitor 2405 (1nf, 50v) e diodo 6406 (bav70). | ||
| PHILIPS | 20PT428A L01.2L AL | No sound. (with or without image for TV, VCR). | - enter service mode, clear error and check option byte table. | ||
| PHILIPS | 20PT428A L01.2L AL | No vertical sync (vert5). | - tentar desabilitar o ""forced slicing level for vertical sync."" fsl 0 slincing level dependent on noise detector fsl 1 fixed slicing level of 70%. | ||
| PHILIPS | 20PT428A L01.2L AL | Without horizontal synchronization. | - check possible changes in one of the capacitors 2241 (4n7) and 2242 (1uf). | ||
| PHILIPS | 20PT428A L01.2L AL | No h/v sync. | Same information valid for chassis l03 contained in service information ts03-016. - possible leak in capacitor 2241(1n5). see table 1 of information ts03-016.- possible alteration of capacitor 2242 (1µf). see table 1 of information ts03-016. | ||
| PHILIPS | 20PT428A L01.2L AL | Horizontal dark streaks. | - check capacitors 2252 and 2253. | ||
| PHILIPS | 20PT428A L01.2L AL | Does not work (it remains switched off). | - check if there is a short in the power supply line, disconnect 5602, 5603 and 5604, if it rises above 3.3v check regulator 7560, if the voltage is at 3.3v the micro 7200 may have a short. - check for possible leakage in diode 6495 (byd33d). - check capacitor 2520 (100nf). - check transformer 5520, and diode 6565 (bav70). | ||
| PHILIPS | 20PT428A L01.2L AL | Does not accept remote command | - check possible leak in capacitor 2602 (100pf). | ||
| PHILIPS | 20PT428A L01.2L AL | Hotel mode | - no cr 319753 mute. | ||
| PHILIPS | 20PT428A L01.2L AL | List the option swaps | - ob1 = 0 (tuner alps), 128 (tuner philips)- ob2 = 215- ob3 = 65- ob4 = 64- ob5 = 82- ob6 = 81- ob7 = 3 |