| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Philips | GR1AX | Pic & sound int blank out esp on chan change | IC7470 TDA2579B/N1 timebase chip | ||
| Philips | GR1AX | OSD-display is black and white. | Check/replace D6761 (1N4148; 4822 130 30621). | ||
| Philips | GR1AX | NO VIS , BLANK UNMODULATED RASTER | C2045 ( 22nF ) CERAMIC CAP LEAKY | ||
| Philips | GR1AX | No tuning volts | Check R3703 o/c | ||
| Philips | GR1AX | No tuning | R3703 oc | ||
| Philips | GR1AX | No sound/pic 95v HT only 10v | Low res across +9 (10v) supply; was sound chip & D6613 BYX79C15 zener leaky | ||
| Philips | GR1AX | No sound/pic - just blank screen | C2044 4µ s/c | ||
| Philips | GR1AX | No sound. | Check IC7103 (TDA7052; 4822 209 60956). If IC7103 needs to be replaced, it is recommended to: * Delete jumper 9063 and diode 6101 (between pin 4 and 7 of IC7103) * Add jumper 9105 soldered to pin 4 and 7 of IC7103. REMARKS : This informati | ||
| Philips | GR1AX | No sound or vision - low humming | LOPTx leak between windings 6-10 & 8-9 | ||
| Philips | GR1AX | No sound or picture. | D6613 BYX79C15 leaky. | ||
| Philips | GR1AX | No sound or pic - loud hum thro spkr | LOPTx faulty | ||
| Philips | GR1AX | No sound or pic | replacing tuner brought back sound - pic? | ||
| Philips | GR1AX | No sound | Mono af sig present at I/p to IC7100 TDA8415 but no o/p - chip u/s | ||
| Philips | GR1AX | No picture. OSD OK | Voltage pin 10 IC7020 too low. Check C2045 (22nF; 4822 122 30103). | ||
| Philips | GR1AX | No pic - blank raster when A1 advanced | C2045 22nF leaky - In AGC cct to pin 10 IC7020 TDA8305 |