| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| 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) | ||
| Philips | 2B | No picture, sound OK (narrow line when increasing G2 voltage) | IC 7550 (TDA8370) is defective. Possibly resistor 3535 (10 ohm) is disconnected. | ||
| Philips | 2B | NO PICTURE FROM COLD PICTURE APPEARS SLOWLY FROM B | C2571 100uF 25v IN FIELD CCT | ||
| Philips | 2B | Hum on standby, not in normal operation | Replace D 6690 (BZV 85/C5V1; 4822 130 31456) | ||
| Philips | 2B | Hum during switching | Remove C 2199 (1,5 uF) on stereodecoder | ||
| 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 | ||
| Philips | 2B | Field foldover with bright line | C2582 680µ | ||
| Philips | 2B | Dead - blown chopper transistor. | T7685/6 , D6686 , D6672 , D6607/71 , D6690 , R3687 , R3670 , C2690. | ||
| Philips | 2B | Continuous page header display in subtitle | Change text IC to type MAB8461P/W196 part No4822 209 62479 | ||
| 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) | ||
| 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 | ||
| Philips | 2B | Causing interference to FM radio reception. | Mod. | ||
| Philips | 2B | Blanked pic for first 5 mins from sw on | check/replace 6x33k res on crt base; add 1N4148 in series with D6492 | ||
| 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 | ||
| Philips | 2B | + 140 V not present | Check soldering points of SOPS-transformer (T5663) and line transformer (T5620) |