| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4551
|
| Philips | CP90 | No colour when replacing IC7261 TDA3565/N4 by version /N6. | Add a ceramic plate capacitor of 56pF (4822 122 31772) in series with 1261.
Connect the capacitor between 1261 and earth.
If insufficient result, replace 56 pF by a trimmer of 22 pF (4822 125 50045) and adjust as presribed on page 3 alinea 7. In some s | 14-09-04 |
| Philips | CP90 | No pic - sound ok | TDA3562 faulty | 14-09-04 |
| Philips | CP90 | No pic - sound ok | R3473 1R on crt panel o/c (htrs) or dry joints in heater cct or LOPTx | 14-09-04 |
| Philips | CP90 | No pic - traces of sound | All psu volts ok - crack in print between pin 7 of LOPTx & junct R3495/C2594 (No 15v earthy end of EHT cct) | 14-09-04 |
| Philips | CP90 | No pic due to no A1 supply | LOPTx faulty | 14-09-04 |
| Philips | CP90 | No picture traces of sound. | Break between pin 7 of LOPTX & junction of R3495/C2594. | 14-09-04 |
| Philips | CP90 | No picture. | Tr7619 ( BUD11 ) check C2619 ( 1nF ) & C2610 | 14-09-04 |
| Philips | CP90 | No remote functions. | Photodiode D6960 dry-jointed. | 14-09-04 |
| Philips | CP90 | No sound or raster - shows F1 in display | T7739 BC548 o/c | 14-09-04 |
| Philips | CP90 | No sound, picture OK | Check/replace bus BU 5 (4822 267 60188)
| 14-09-04 |
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|
| Philips | CP90 | No sound, picture OK | Replace IC 7101 (TDA 8190; 4822 209 70872)
| 14-09-04 |
| Philips | CP90 | No sound/pic - crt htrs alight | No 6v to micro - D6733 BAV19 o/c | 14-09-04 |
| Philips | CP90 | No synchronization | Check/replace U 1040 (4822 212 22739)
| 14-09-04 |
| Philips | CP90 | No vertical deflection | Replace TS7571 and TS7573 (BD939F; 4822 130 42681)
| 14-09-04 |
| Philips | CP90 | off - mains fuse blown | BUT11AF chopper tr breaking down under load | 14-09-04 |
| Philips | CP90 | off with whistle | no ht on dummy load - C2703 330µ to pin 10 of chopper tfmr | 14-09-04 |
| Philips | CP90 | Only half an inch of field scan in centre. | Chassis return res R3582 ( 3.3R ) o/c. | 14-09-04 |
| Philips | CP90 | Patterning on RF. | Check power supply +19V. If incorrect replace C2691 (330uF; 4822 124 41693). | 14-09-04 |
| Philips | CP90 | Pic takes long time to come on | C2265 0µ1 decoupler from pin 24 TDA3561A | 14-09-04 |
| Philips | CP90 | poor line lin in centre | D6609 & 6610 faulty (checked ok) | 14-09-04 |
| Philips | CP90 | Power supply will not start up when set is warm | D6670 (IN4148) was found to be defective when warm. After replacing this Diode normal operation was restored. | 14-09-04 |
| Philips | CP90 | Psu ok but dead - if no 5v after StBy thyristor sh | C2691 330uF or TDA2579 or possibly micro. | 14-09-04 |
| Philips | CP90 | Range of remote control limited | R/C reciever chip TDA3047 u/s | 14-09-04 |
| Philips | CP90 | Raster - blank with no sound. | D6733 ( BAV19 ) o/c. | 14-09-04 |
| Philips | CP90 | Reduced Width | D6609 D/J & R3600 ( 8R2 ) o/c | 14-09-04 |
| Philips | CP90 | Remote control fails | RC5-signal on pin 9 IC 7960 not present, +4,9 V on pin 8 IC 7960 present
Check/replace IC 7960 (TDA 3047; 4822 209 72364) and check/replace D 6960 (BPW 50; 4822 130 32376) | 14-09-04 |
| Philips | CP90 | Rolling | TDA2579 on IF/Sync panel | 14-09-04 |
| Philips | CP90 | Servicing the CP90 chassis | see TV Mag Mar 1993 | 14-09-04 |
| Philips | CP90 | SET DEAD NO OSCILLATION ON PINS 31 + 32 IC7840 | C2934 , 2935 27pF | 14-09-04 |
| Philips | CP90 | Set does not come out of standby. | Audible noise, whistle or motorboating, whilst set in standby.
Check/replace R3670 - 22 Ohm, D6670 - 1N4148 (4822 130 33939). | 14-09-04 |