Philips Repair Tips
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Results: 14248
Results: 14248
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
GR1AX
|
Power supply faultfinding | Power supply faultfinding ------------------------- the power supply in the gr1-ax delivers approximately 33 watts on the +95v line to run the set. clearly the practice of using a 60 watt 240v lamp as a load during fault finding cannot be applied in this | ||
| PHILIPS |
GR1AX
|
Power supply does not oscillate. | Check c2613 (33nf; 4822 121 42489) on leakage. | ||
| PHILIPS |
GR1AX
|
Poor reproduction of copy protected tapes | It is possible that reproduction of some vcr tapes will be adversely affected by anti copy signals which are recorded on the video tape during the sync. period. a significant improvement can be achieved by applying the following modification: position | ||
| PHILIPS |
GR1AX
|
Poor line sync | C2501 ( 10uf ) | ||
| PHILIPS |
GR1AX
|
Poor h.t regulation and intermittent over voltage tripping. | D6629 (bzx79-b6v2; 4822 130 34167). | ||
| PHILIPS |
GR1AX
|
Picture fails for a short time. | Diode 6542 (byd33d) dry joint. | ||
| PHILIPS |
GR1AX
|
Pic & sound int blank out esp on chan change | Ic7470 tda2579b/n1 timebase chip | ||
| PHILIPS |
GR1AX
|
Osd-display is black and white. | Check/replace d6761 (1n4148; 4822 130 30621). | ||
| PHILIPS |
GR1AX
|
No vis , blank unmodulated raster | C2045 ( 22nf ) ceramic cap leaky | ||
| PHILIPS |
GR1AX
|
No tuning volts | Check r3703 o/c | ||
| PHILIPS |
GR1AX
|
No tuning | R3703 oc | ||
| PHILIPS |
GR1AX
|
No sound/pic 95v ht only 10v | Low res across +9 (10v) supply; was sound chip & d6613 byx79c15 zener leaky | ||
| PHILIPS |
GR1AX
|
No sound/pic - just blank screen | C2044 4µ s/c | ||
| PHILIPS |
GR1AX
|
No sound. | Check ic7103 (tda7052; 4822 209 60956). if ic7103 needs to be replaced, it is recommended to: * delete jumper 9063 and diode 6101 (between pin 4 and 7 of ic7103) * add jumper 9105 soldered to pin 4 and 7 of ic7103. remarks : this informati | ||
| PHILIPS |
GR1AX
|
No sound or vision - low humming | Loptx leak between windings 6-10 & 8-9 | ||
| PHILIPS |
GR1AX
|
No sound or picture. | D6613 byx79c15 leaky. | ||
| PHILIPS |
GR1AX
|
No sound or pic - loud hum thro spkr | Loptx faulty | ||
| PHILIPS |
GR1AX
|
No sound or pic | Replacing tuner brought back sound - pic? | ||
| PHILIPS |
GR1AX
|
No sound | Mono af sig present at i/p to ic7100 tda8415 but no o/p - chip u/s | ||
| PHILIPS |
GR1AX
|
No picture. osd ok | Voltage pin 10 ic7020 too low. check c2045 (22nf; 4822 122 30103). |