| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Philips | 2A | No tuning. | R3730 ( 160ohm ) o/c. | ||
| Philips | 2A | No tuning just noise. | Break between pin 4 of tuner & pin 7 of socket M1. | ||
| Philips | 2A | No tuning front display shows correct channel | R3740 ( 5.6R ) on citac module o/c. | ||
| Philips | 2A | No tuning but displays correct chan no. | Tuning volts remain at 33v; R3740 5R6 on CITAC module o/c (No 5v to tuner divide by 256 cct) | ||
| Philips | 2A | No pic/sound - LED blinks in time with HT | Repeated resetting of micro due to reset drive 0.5volts low - fit additional 10µh choke across L5642 to restore 7v value | ||
| Philips | 2A | No frame - 2x resistors burnt up by LOPTX. | R3638+3645 ( .33R ) , Check diode by them , Frame IC TDA. | ||
| Philips | 2A | Moire type patterning | Check the ceramic cap across fop chip isn't missing (if you've just changed it for instance) | ||
| Philips | 2A | Memory - loss. | Degaussing thermistor. | ||
| Philips | 2A | Lines/tearing until warmed up | C2550 1µ 63v hi esr | ||
| Philips | 2A | Lines - vertical over whole screen. | 2691 ( 33pf ) , 3691/2 ( 3.9m ) , drys in power supply/earthing | ||
| Philips | 2A | line tear and poor field sync | C2550 1uF | ||
| Philips | 2A | Line ripple aft few mins with low HT | C2664 - normally causes dead set | ||
| Philips | 2A | Lack of contrast. | R3496 ( 15k ) , D6493 12v zener. | ||
| Philips | 2A | Intermittent no raster. | Check if pin 7 ( TDA3561 ) has gone to 0v if so C2496. | ||
| Philips | 2A | Intermittent loss of raster. | C2496 going o/c. |