| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Philips | G90AE | Squeal from psu (sound & pic ok) | Renew the three bridge sm resistors 3620 (180K), 3618 (180K) and 3614 (360K) and the Ht decoupler C2630 (47mfd / 160v) | ||
| Philips | G90AE | Squeal from psu - sound & pic ok | R3614 360k; R3618,R3620 180k; C2630 47µ (HT res cap) | ||
| Philips | G90AE | Spare part information | Spare part information Codenumber channel selector UV615 including hyperband is 4822 210 10374. | ||
| Philips | G90AE | Sound int | D6272/6278 BAS32 sm in series with 20v supply to sound chip IC7220 TDA8191 | ||
| Philips | G90AE | Shutting down with a ticking PSU. | Tr7652 ( BC557C ) leaky , R3668 ( 150ohm ) scorched , Check C2630 HT res | ||
| Philips | G90AE | Shuts down on full mains - ok on 90v ac | Not a prot fault - D6653 leaky (supplies opto coupler) | ||
| Philips | G90AE | SHUTS DOWN , TICKING NOISE FROM PSUP | T7652 ( BC557C ) LEAKY , THEN RAGGED R3668 ( 150R ) AND FIT NEW HT RESERVIOR CAP 47mfd C2630 | ||
| Philips | G90AE | Shut down aft 10 mins with HT low at 30v | Tr7652 BC557C - check it with freezer | ||
| Philips | G90AE | Set intermittently tripping. | Suspect fault around trip circuit comprising T7655/7656. Replace zener diodes 6657, 6658, 6659 and especially 6655 - 15 volt zener. | ||
| Philips | G90AE | SET DEAD WORKS IF SUPPLY REDUCED TO 90v | D6653 | ||
| Philips | G90AE | Set blocks | Voltage on I2C-Bus (pin 5 and 6 IC 7720) < 4,9 V No pulses visible on oscilloscope when selecting another program Replace IC 7770 (ST24C02CP; 4822 209 62098). Mount metal shielding 4822 466 82783 on uP (IC 7720) with earth to jumper 9711. | ||
| Philips | G90AE | Servicing the Philips G90AE Chassis | See TV Mag Jan 1997 | ||
| Philips | G90AE | Replacing the EAROM | Replacing the EAROM.The memory IC has been replaced by type ST24C02CP (code no.4822 209 62098). On some receivers however, the circuit will have to be modified. a. If the ST24C02CP is being fitted in place of an X2402 no circuit changes will be required | ||
| Philips | G90AE | Remote control inoperative - dark picture. | Replace IC 7720. | ||
| Philips | G90AE | REDUCED HEIGHT , TOP FOLDOVER | R3508 24k HIGH |