| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4551
|
| Philips | 2A | Dead - 300v on BUT collector. | D6663 ( 1N5062 ) leaky. | 14-09-04 |
| Philips | 2A | DEAD APART FROM TICKING NOISE | D6700 6v8 ZENER SC | 14-09-04 |
| Philips | 2A | Dead - blows LOPTr instantly at sw on | TDA2579 drive chip faulty (dist line dr wform) | 14-09-04 |
| Philips | 2A | Dead - tripping | OK on dummy load - LOPTx faulty tho checked ok on tester | 14-09-04 |
| Philips | 2A | Dead or int dead | OK on dummy load - C206 u/s and bulging slightly | 14-09-04 |
| Philips | 2A | DEAD SET , OVERVOLTS THYRISTOR FIRING | C2698 ( 4.7mfd ) o.c. | 14-09-04 |
| Philips | 2A | Dead with 2A fuse o/c, 2 mains rects s/c | Replace CNX62 optocoupler & Tr7686 BC369 | 14-09-04 |
| Philips | 2A | DEAD WITH 300v COLLECTOR BUT11AF | D6663 1N5062 LEAKY | 14-09-04 |
| Philips | 2A | Dead with whining | LOPTr leaky - used BU508V; dry joints line dr tfmr | 14-09-04 |
| Philips | 2A | Dead with whining | R3602 1R safety res o/c; C2602 10µ 63v s/c; R3601 5R6 safety res o/c | 14-09-04 |
|
|
| Philips | 2A | Dead. | Standby thyristor 6727 ( BT151 ) s/c. | 14-09-04 |
| Philips | 2A | Destroys line TR | Remove line drive TX clean pins and refit | 14-09-04 |
| Philips | 2A | Does not start. | Check C2670 (68nF polyester flat foil 63V).
Check C2681 6,8 uF | 14-09-04 |
| Philips | 2A | Does not tune. Right channel number in display. | In search tuning mode the tuning voltage of channel selector
remains 33V. R3740 (5R6; 4822 050 25608) broken in CITAC module.
| 14-09-04 |
| Philips | 2A | EXCESSIVE WIDTH | CHECK R3602 15 OHM ( SAFETY ) | 14-09-04 |
| Philips | 2A | Excessive width - preset ( R3595 ) has no effect. | R3602 ( 15ohm ) fusible o/c ( no 23v rail ) , Drys on T5611. | 14-09-04 |
| Philips | 2A | Faint pattern of vertical lines. | With text fall out. solder text ICs direct to panel. | 14-09-04 |
| Philips | 2A | FIELD CHIP FAILS REGULARLY | C2571 , C2565 , D 6570 | 14-09-04 |
| Philips | 2A | Field collapse | TDA3654Q F o/p chip & C3571 100µ 25v hi esr | 14-09-04 |
| Philips | 2A | FIELD POOR LINEARITY | C2575 4u7 63v | 14-09-04 |
| Philips | 2A | Fine grill effect over pic - can be int | IC holders on txt panel int - remove chips & solder in directly | 14-09-04 |
| Philips | 2A | Frame bounce when cold | This was cured by replacing C2550 1 uF (4822 124 40242). | 14-09-04 |
| Philips | 2A | Frame collapse - blows chip after few days. | Change IC , C2571 ( 100uf ) , D6646 ( BYD33G ) , C2646 ( 1 , 000uf ) | 14-09-04 |
| Philips | 2A | Frame IC blowing. | Fit C2565 ( 390pf ) between pins 1&5 of IC7570 ( frame ) | 14-09-04 |
| Philips | 2A | Frame IC TDA3653AQ/4Q blowing. | C2571 ( 100uf , 25v ) , C2565 ( 390pf , 100V ) | 14-09-04 |
| Philips | 2A | Fuse 1651 blows. | Diode 6664 (BYD33J; 4822 130 42606) and C2664 (1,5 nF; 1kV;
4822 122 40308) defective.
| 14-09-04 |
| Philips | 2A | HT & chan no show for 1/2 sec at sw on then dead | OK on dummy load & works when heated - C2681 6µ8 63v hi esr | 14-09-04 |
| Philips | 2A | HT LOW AT 25v IF POWER SUPPLY UNLOADED OK ( 140v ) | R3690 82R OC IN POWER SUPPLY | 14-09-04 |
| Philips | 2A | HT LOW AT 40-50v SET SQUEALS | C2697 C2701 OC | 14-09-04 |
| Philips | 2A | Intermittent loss of raster. | C2496 going o/c. | 14-09-04 |