Philips Repair Tips
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Results: 14210
Results: 14210
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| 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). | ||
| PHILIPS |
G90AE
|
Tuning unstable | Voltage on diode d 6770 not stable replace d 6770 (ztk 33b; 4822 130 30959) | ||
| PHILIPS |
G90AE
|
Trips rapidly | Tr7652 bc557c in pulse width mod in psu | ||
| PHILIPS |
G90AE
|
Trips on & off violently after several minutes | Ozone smell - focus pin arcing - replace crt base | ||
| PHILIPS |
G90AE
|
Tripping with clcking thro spkr | Same on dummy load - replace c2630/1 47µ 160v. r3668 sm 150r had dropped off. replaced also 7652 bc557c & opto coupler as precaution | ||
| PHILIPS |
G90AE
|
Tripping aft 10 mins operation | Can be instigated by heating/cooling around psu - replaced 150r sm (r3668?) | ||
| PHILIPS |
G90AE
|
Tripping | If ht set at 95v tripping stops but blank raster. xtal filter 1030 s/c with solder | ||
| PHILIPS |
G90AE
|
The voltage of +95v line alters | Check transistor 7653 (bc858a; 5322 130 42012). | ||
| PHILIPS |
G90AE
|
The upper part of picture consists of few lines | Check c2475 (33nf/63v; 5322 122 31848). | ||
| PHILIPS |
G90AE
|
Switches off and on shortly | Selects always program 1 and adjusts pp-value.check c2397 (33nf; 5322 121 41763) on the crt panel for leakage. bend c2397 on picture-tube pcb from picture-tube socket. | ||
| PHILIPS |
G90AE
|
Stuck on chan 8, front controls & r/c inop - st/by led flashing | Replace c2843 [220uf] in 5 volt regulator | ||
| PHILIPS |
G90AE
|
Striations | A production change has been introduced adding the following components in the +95 volt feed to the line output stage: description: position no. 5558 code no. 4822 158 10563 choke 82uh capacitor 10n 100v position | ||
| PHILIPS |
G90AE
|
Squeal from psu (sound & pic ok) | Renew the three bridge sm resistors 3620 (180k), 3618 (180k) and 3614 (360k) and the ht decoupler c2630 (47mfd / 160v) | ||
| PHILIPS |
G90AE
|
Squeal from psu - sound & pic ok | R3614 360k; r3618,r3620 180k; c2630 47µ (ht res cap) | ||
| PHILIPS |
G90AE
|
Spare part information | Spare part information codenumber channel selector uv615 including hyperband is 4822 210 10374. | ||
| PHILIPS |
G90AE
|
Sound int | D6272/6278 bas32 sm in series with 20v supply to sound chip ic7220 tda8191 | ||
| PHILIPS |
G90AE
|
Shutting down with a ticking psu. | Tr7652 ( bc557c ) leaky , r3668 ( 150Ω ) scorched , check c2630 ht red | ||
| PHILIPS |
G90AE
|
Shuts down on full mains - ok on 90v ac | Not a prot fault - d6653 leaky (supplies opto coupler) | ||
| PHILIPS |
G90AE
|
Shuts down , ticking noise from psup | T7652 ( bc557c ) leaky , then ragged r3668 ( 150r ) and fit new ht reservior cap 47mfd c2630 |