Philips Repair Tips
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Results: 14231
Results: 14231
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
GR2.4
|
Tripping | To disable trip unsolder pin 2m37 on power control module. fault was caused by audio o/p chip ic7240 tda1521 & o/c cp1601 2.5a cct prot in -16v supply | ||
| PHILIPS |
GR2.4
|
Totally inoperative. | Replace ic7614 (cnr 50; 4822 130 30992) and sops transistor t7625 (but12-af; 4822 130 62735) | ||
| PHILIPS |
GR2.4
|
Supply is hickupping. | Replace lot l5545 cml op503. | ||
| PHILIPS |
GR2.4
|
Spare part information | Spare part information from qg04 onwards the following l.o.t are used: 25" and 28" black line s sets use l.o.t 4822 140 10501 25" and 28" black matrix sets use l.o.t 4822 140 10503 21" sets with 90 degree picture tube use l.o.t. 4822 140 10499 for | ||
| PHILIPS |
GR2.4
|
Sound mute depending on video-contents of the picture | Solder a 12 volt zenerdiode (4822 130 81288) with cathode to the positive side of (+) of c2246. solder the anode of this zenerdiode to earth. solder a 150Ω (4822 116 52211) resistor to the cathode of the zenerdiode. solder the other side of this resist | ||
| PHILIPS |
GR2.4
|
Set totally inoperative, mainfuse f1600 (2.5at) blown. | Replace t7625 (but12af) and d6602-6605 (short circuit). replace ic7614 cnr50 9407. | ||
| PHILIPS |
GR2.4
|
Set totally inoperative | Check c2549 470nf/400v (4822 121 42074). | ||
| PHILIPS |
GR2.4
|
Set inoperative; squeaking tone from backside tv. lot defective. | Replace lot (pos 5545) and line transistor t7545. check r3570. | ||
| PHILIPS |
GR2.4
|
Set inoperative. supply in overload protection. | Replace lot l5545 because of shortcircuit 4822 140 10499 for 21" 90 degrees 4822 140 10501 for 25"/28" | ||
| PHILIPS |
GR2.4
|
Red picture with fly-back lines after ticking on the neck of crt | Picture tube (a51eal65x00) defective. | ||
| PHILIPS |
GR2.4
|
Radio interference audible in center and rear loudspeakers | Add 10 nf capacitor(4822 121 41857) between the following points: point 2/3 of ic7270 and solder the other connection of the capacitor to the track coming from point 5 of connector s84. all these items are located on the dolby interface module.(see servic | ||
| PHILIPS |
GR2.4
|
Pll-circuit if-eco version has problems with some antenna signals | Pll circuit if-eco module modified. c2004=220 nf (4822 122 32927) r3002=470Ω (4822 051 20471) c2007=removed. | ||
| PHILIPS |
GR2.4
|
Only st.by led on. no start up voltage on sync. ic | Check up ic7708 (pin17 low). | ||
| PHILIPS |
GR2.4
|
Noise in left loudspeaker at low volume | Delete on the if-module the following items: 2235, 3211 and 7201. connect the + of c2216 to jumper 9201 (on the if-module). inverse the loudspeaker connection. remarks : this solution does not work on sets with a subwoofer. | ||
| PHILIPS |
GR2.4
|
No txt on a non-interlaced picture. | Replace software g24wecor1.2 by gr24wecor2.2 see service information gr2.x (94.04) | ||
| PHILIPS |
GR2.4
|
No raster - eht & sound present | A1 volts low - check for line collapse with lights off - dry joints scan coils | ||
| PHILIPS |
GR2.4
|
No picture, no sound; osd ok; volume not adjustable | Check and replace if necessary item d6563; byd74c; 4822 130 80915 and item f1559; fuse 1a 65v; 4822 252 51173 | ||
| PHILIPS |
GR2.4
|
No pic after loptx replacement - ht voltage rises and falls | C2549 leaky, fuse ref 1534 feed from e-w cct (does not look like a fuse) | ||
| PHILIPS |
GR2.4
|
No led on, sops transistor is not switching. | Start-up c2620 68nf defective (5322 121 42465). | ||
| PHILIPS |
GR2.4
|
No e/w correction. | Check transistor t7530 e/w circuit (5322 130 60159) |