| Make | Model | Problem | Solution | Date |
| | | |
| Found: 194
|
| Philips | G90 | bright raster - poor field lin | 163v line low at 90v - R3570 8R2 o/c | 14-09-04 |
| Philips | G90 | Continuous page header display in subtitle | Change text IC to type MAB8461P/W196 part No4822 209 62479 | 14-09-04 |
| Philips | G90 | CONTRAST CONTROL LIMITED | C2560 ( 33nf ) LEAKY PIN 7 , LOPT. | 14-09-04 |
| Philips | G90 | Dead chopper transistor s/c. | Also change CNX83A optocoupler part No.4822 130 82034 | 14-09-04 |
| Philips | G90 | Dead. | Check for drys on chip diodes. | 14-09-04 |
| Philips | G90 | field collapse | D6465 sm | 14-09-04 |
| Philips | G90 | Frame collapse. | Wickman fuse to o/p transis o/c , R3503/07 , R3501 390k o/c. | 14-09-04 |
| Philips | G90 | Int loss of tuning | X2402 eeprom chip | 14-09-04 |
| Philips | G90 | No blue. | D6416 ( BAS32 ) leaky. | 14-09-04 |
| Philips | G90 | NO LINE OSC | IF VOLTAGE ON PIN 16 TDA2579 IF NOT 9v CHECK ACROSS D6455 5v6 ZENER IF OK HERE REPLACE T7455 IF NOT REPLACE ZENER | 14-09-04 |
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|
| Philips | G90 | no start up - tripping | D6611, 6613, 6614 BAS32 | 14-09-04 |
| Philips | G90 | off with s/by led flashing | ht low & pulsing - R3632 15k in prot cct u/s - C2630 & R3668 also possible | 14-09-04 |
| Philips | G90 | Picture too big | Replace T7652 & CNX83 opto | 14-09-04 |
| Philips | G90 | SET WORKS BUT NO TEXT AND F7 DISPLAYED ON SCREEN | NO RESET PULSE TO IC7800 CHECK TR7846 AND C2843 220uF | 14-09-04 |
| Philips | G90 | snowy pic | check pin 6 tuner. If absent check R3001 15R | 14-09-04 |
| Philips | G90 | Tripping | R3668 sm 150R | 14-09-04 |
| Philips | G90 | Tripping - works on reduced HT | D6656 33v prot zener in HT sensing faulty - replace all 3 | 14-09-04 |
| Philips | G90 | trips after few mins operation | Tr7652 BC557C | 14-09-04 |
| Philips | G90 | Tuning - drift but green line moves. | ZTK33B 33v stabiliser. | 14-09-04 |
| Philips | G90 | Verticals corrugated | C2630 ( 47uF ) | 14-09-04 |
| Philips | G90AE | Blank raster - text Ok. | C2569 ( 33nf ) o/c. | 14-09-04 |
| Philips | G90AE | Blank raster - Txt OK | pin 7 TDA3561A was -ve instead of 3.4v; C2560 33nF o/c | 14-09-04 |
| Philips | G90AE | Blank raster & no sound | TDA5850 | 14-09-04 |
| Philips | G90AE | Blank raster , no sound , no OSD. | IC TMP47C434N-3555 IC7720. | 14-09-04 |
| Philips | G90AE | Blank raster with no sound. OSD or response to R/C | IC7720 reset line pin 33 stuck at 2v - chip had internal leak TMP47C434N-3555 | 14-09-04 |
| Philips | G90AE | BLANK SCREEN NO SOUND | RESET AT 2v IC7720 PIN 33 IF DROPS WHEN PIN 33 ISOLATED REPLACE IC TMP47C434N-3555 | 14-09-04 |
| Philips | G90AE | Blocks/Wrong OSD-indication | Disconnect pins 2 and 3 IC 7800 (TXT-uP), set functions normally.
Replace IC 7800 (MAB 8461P/W196; 4822 209 62479).
Mount metal shielding 4822 466 82783 on uP (IC 7720) with earth to jumper 9711. | 14-09-04 |
| Philips | G90AE | Characters wrong | Replace IC 7820 (SAA 5243P/E; 4822 209 30556) and
replace IC 7800 (MAB 8461P/W196; 4822 209 62479) | 14-09-04 |
| Philips | G90AE | Cogging effect | C2630 47µ 160v HT res cap also change C2631 smoother | 14-09-04 |
| Philips | G90AE | Dark picture - no remote commands. | Replace IC 7720. | 14-09-04 |