GR2 Repair Tips
Search: GR2
Results 286
Results 286
| Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
|---|---|---|---|---|---|
| Philips | GR2.2AA | Dead, no line oscilation, power supply and line output stage are OK | Check / replace C2549 390 or 470nF / 400V and C2545 1n5 or 1n2, 2000v | ||
| Philips | GR2.2AA | Does not work after LOT has been changed | Check / change D6561 also change the TDA2579B if there are any sync problems | ||
| Philips | GR2 | Sound but no picture | Check the LOT cable for short circuit | ||
| Philips | GR2.2AA | Protection circuit operating intermittently | Diode 6592 was found to have leakage causing voltage to protection circuit to be too high, Should be 23 - 28mV | ||
| Philips | 25PT532A/05 GR2.2 | Power supply dead, blowing fuse | Fault was transistor BUT124F 7625 short circuit, replaced Transistor and also changed ic CNR50 7614 and TDA8385 7600 this solved the problem | ||
| Philips | 25PT512A-05 GR2.2 | Dead set HT 140V ok | Replace standby Thermistor THY6670 | ||
| Philips | GR2.4AA | Power Supply Protection enabled | Replaced zener diode 6561 BZX79C68 | ||
| Philips | 25PT452A/11 GR2.2 | Picture wide and triping | Change D6591 s/c 1N4148 | ||
| Philips | 28ST2781 GR2.2 AA | Dead, psu ticking | Flyback cap 11nF, 1600V was burned which caused the BU508AF flyback transistor to fail. Changed both | ||
| Philips | 21GR2751 G90B | Stereo set with no sound off air, maximum volume produces low hiss, some sound possible if station is detuned slightly. Sound via SCART is ok | Replace IC U2829B on audion panel | ||
| Philips | GR2.1 AA | Poor picture quality from CVBS EXT1 and EXT3. Low intensity high saturation. Loss of sync. Shock and temp dependent | Dry joints on SMD resistors 3014 and 3019 on IF/Sound module other side of encapsulated TDA2549 | ||
| Philips | GR2.4AA GR2.4AA | No picture, just black screen | Check R3414, an SMD chip on the CRT board. There could be invisible bad solder joints | ||
| Philips | GR2-4 | Faint tripping | C2550 680n 250v leaky | ||
| Philips | GR21AA | EHT BUT NO SOUND OR PIC AND A FLASHING LED ( WHEN | TDA2579B PRODUCING WRONG S.CASTLE PULSES | ||
| Philips | GR21AA | DEAD WITH POWER SUPP. RUNNING | CHECK IC7880 PCA84C81AP/098 ( UNPLUG TEXT PCB TO PROVE ) | ||
| Philips | GR21AA | DEAD STBY LIGHT FLASHING NO LINE DRIVE | R3455 1k HIGH | ||
| Philips | GR20 GR1AX | Lines at top of screen | Coil 5524 reading 7R5 | ||
| Philips | GR2.4AA | Screen went green & blinked out | R3374/3434 1k5 o/c, R3431 180R, R3372 270R o/c, Tr7364 BF422 leaky on crt base. Caused by leakage in crt cured by rejuvenation | ||
| Philips | GR2.4AA | No raster - sound & EHT OK - loptr overheats | Scan coils s/c due to dry joints on small pcb on scan coils | ||
| Philips | GR2.4AA | Dead with hissing/crackling | dry joints scan coil plug |