| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4551
|
| Philips | 2A | TICKING IN SBY OTHERWISE OK | C2690 1mfd 100v NON POLARISED | 14-09-04 |
| Philips | 2A | Ticking in standby - set works Ok. | C2690 ( 1uf , 100 ) bt earthy side of chopper driver & chassis. | 14-09-04 |
| Philips | 2A | TOO WIDE WIDTH CONTROL NOT WORKING NO -26v ON WIDT | R3602 OC | 14-09-04 |
| Philips | 2A | Totally inoperative set. Squeaking sound when turned on. | Check and replace R3601 (E/W) and check diodes close to thyristor.
| 14-09-04 |
| Philips | 2A | Tripping intermittent. | C2609 ( 9.1nf or 7.5nf ) | 14-09-04 |
| Philips | 2A | TRIPS | MAB8441 MICRO SC | 14-09-04 |
| Philips | 2A | Trips int | Opto-coupler int | 14-09-04 |
| Philips | 2A | TS7618 (BU508) short-circuited/TV whistles. | C2609 broken (5n6 2kV; 4822 121 41534 or
9n1 1.5kV; 4822 121 42418)
Check also C2610 and C2618 (4822 122 32501). | 14-09-04 |
| Philips | 2A | Vertical output IC7570 (TDA3654Q) defective | Replace:
IC7570 TDA3654Q 4822 209 73308
C2571 100uF electrolytic 25V 4822 124 40207
C2565 380pF plate ceramic 100V 4822 122 32121 | 14-09-04 |
| Philips | 2A | Vertical stripes from time to time. | Socket of IC7770 on teletext decoder makes bad contact.
| 14-09-04 |
|
|
| Philips | 2A | Weak picture, contrast too low. | Check R3291 (15 kOhm; 4822 116 52244) and D6493
(BZX79/C12; 4822 130 34197). | 14-09-04 |
| Philips | 2A | Width - fluttering in and out. | C2609 ( 9.1nf or 7.5nf ) | 14-09-04 |
| Philips | 2A | Will search correctly but when station found will | Replace SAB3037 | 14-09-04 |
| Philips | 2A | Wont store analogue settings even after battery replaced | Leave tv for a few days with battery disconnected (presumably it resets something in tv) | 14-09-04 |
| Philips | 2B | + 140 V not present | Check soldering points of SOPS-transformer (T5663) and line
transformer (T5620)
| 14-09-04 |
| Philips | 2B | + 140 V not present | Replace TS7687 by 2SC3973B (4822 130 60851),
change R3671 into 22 Ohm/5watt (4822 113 41152) and
replace TS7685 BC547 (4822 130 44257) and
replace TS7686 BC369 (5322 130 44593) and
replace D6690 BZV85/C5V1 (4822 130 | 14-09-04 |
| Philips | 2B | Blanked pic for first 5 mins from sw on | check/replace 6x33k res on crt base; add 1N4148 in series with D6492 | 14-09-04 |
| Philips | 2B | Causing interference to FM radio reception. | Mod. | 14-09-04 |
| Philips | 2B | Checking the power supply | Checking the power supply
-------------------------
1. Remove connector M17
2. Connect a lamp 220V/75W across C2701
3. Switch on set
4. Lamp lights, +140 V present
This means power supply is OK
| 14-09-04 |
| Philips | 2B | Contents of memory lost | The failure occurs when the set is switched off by the power switch.
Replace battery 1925 (4822 138 10313)
Check and replace if necessary IC 7925, IC 7926
(PCD 8571P; 4822 209 83571) | 14-09-04 |
| Philips | 2B | Continuous page header display in subtitle | Change text IC to type MAB8461P/W196 part No4822 209 62479 | 14-09-04 |
| Philips | 2B | Dead - blown chopper transistor. | T7685/6 , D6686 , D6672 , D6607/71 , D6690 , R3687 , R3670 , C2690. | 14-09-04 |
| Philips | 2B | Field foldover with bright line | C2582 680µ | 14-09-04 |
| Philips | 2B | Frontend FE618Q/256 in repair procedure | Frontend FE618Q/256 in repair procedure
---------------------------------------
To avoid a shortage of the FE618Q/256 (4822 212 22455) in the future,
this frontend is put in the repair procedure (repair only).
This means that no new frontends will be deli | 14-09-04 |
| Philips | 2B | Hum during switching | Remove C 2199 (1,5 uF) on stereodecoder
| 14-09-04 |
| Philips | 2B | Hum on standby, not in normal operation | Replace D 6690 (BZV 85/C5V1; 4822 130 31456)
| 14-09-04 |
| Philips | 2B | NO PICTURE FROM COLD PICTURE APPEARS SLOWLY FROM B | C2571 100uF 25v IN FIELD CCT | 14-09-04 |
| Philips | 2B | No picture, sound OK (narrow line when increasing G2 voltage) | IC 7550 (TDA8370) is defective.
Possibly resistor 3535 (10 ohm) is disconnected.
| 14-09-04 |
| Philips | 2B | No picture, sound OK (Voltage on pin 14 of IC 7550 smaller then 2V) | Check IC 7550 (TDA 8370/V2; 4822 209 70178) and
check IC 7570 (TDA 3654Q; 4822 209 83351)
| 14-09-04 |
| Philips | 2B | No reception of VHF-channels. | Check the option code of the tuner: press simultaneously the keys on
the TV "store open" and "saturation+", then switch on the set. On the
display you will see the option code and this can be changed with the
"C/P+" or
"C/P-" key. Store with the "store e | 14-09-04 |