Philips Repair Tips
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Results: 14248
Results: 14248
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
G90B
|
Contents of memory lost | Replace ic 7770 (st24c02cp; 4822 209 60098) mount metal shielding 4822 466 82781 on ic 7720 with earth on r 3733 | ||
| PHILIPS |
G90B
|
Brightness too high/fly-back line visible | Replace ic 7380 (tda 8153; 4822 209 73218) replace r 3375 (100Ω; 4822 052 10101) | ||
| PHILIPS |
G90B
|
Brightness not adjustable | Check d6809 (ll4148; 4822 130 80876) in textdecoder. | ||
| PHILIPS |
G90B
|
After a while picture disappears, picture comes through scart | Replace channel uv816; 4822 210 50123 or uv818; 4822 210 10321. | ||
| PHILIPS |
G90B
|
7625 (but 11af) lasts longer | 7625 (but 11af) lasts longer. connect two diodes 1n5061 in series from the base of tr7625 to earth. the anode side to the base of 7625. | ||
| PHILIPS |
G90AE 21GR2554
|
F7 on screen, no sound, stuck on channel, may be intermittent | C2843 near loptx | ||
| PHILIPS |
G90AE 21GR2554
|
"f7" displayed with snow & no control - led flashes orange | C2843 220µ near loptx low cap | ||
| PHILIPS |
G90AE 21GR2552
|
Psu shutting down with popping sound. leds flashing | Ht going down to 20-30v and tripping due to dj on smd r3663 | ||
| PHILIPS |
G90AE 21GR2550
|
Tripping psu | Check/replace 3 x 33v sm zeners in series | ||
| PHILIPS |
G90AE 21GR2350
|
Shuts down with motorboating noise aft 10 mins | Dry joints q7502 in fop | ||
| PHILIPS |
G90AE 21 GR2350
|
No sound | Ic7220 i/c sound chip tda8191 | ||
| PHILIPS |
G90AE
|
Wont go into st/by - led goes orange not red | D6669 bas32 s/c | ||
| PHILIPS |
G90AE
|
Will not stay in standby mode | The reason of this fault is r3669 220Ω in the power supply. service code 4822 051 10221. | ||
| PHILIPS |
G90AE
|
White screen, not adjustable | Check por-transistor 7663 (bc858; 5322 130 42012). | ||
| PHILIPS |
G90AE
|
When the set is switched on, the sops starts tripping. | If the mains voltage is turned up using a variac, the +95 line supply gets to 80 volts then starts pulsing. check/replace r3668 - 150Ω smd (5322 111 90098) | ||
| PHILIPS |
G90AE
|
When fitting psu mod kit | Diodes 6608 & 6609 should be wired in series and then connected between base/emitter of 7625 (but11af) with the anode end of the pair to base. (if not already fitted) | ||
| PHILIPS |
G90AE
|
Weak video & no sync | Tda5850 | ||
| PHILIPS |
G90AE
|
Txt poor - looks like purity errors | Dry joints wire links on main pcb near txt panel | ||
| PHILIPS |
G90AE
|
Txt horizontal synchronization missing | Check horizontal phase discriminator detection filter capacitor c2827 (47nf; 4822 122 32542). | ||
| PHILIPS |
G90AE
|
Tuning, display and remote control not functioning | Voltage of pin 42-ic7720 low, tr7661 defective (bd135; 4822 130 40823). |