Philips Repair Tips
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Results: 14208
Results: 14208
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
20PT428A L01.2L AL
|
Turn off inter. or protect (rew 3 for vcr). | - check tsh for isolation problems. - check capacitor 2475 (470pf) for possible leakage. - check capacitor 2540. - check resistor 3547 0.22r changed - check diode 6405 (-15v) open. | ||
| PHILIPS |
20PT428A L01.2L AL
|
Damages electrical panel. | - tuner (1000) check possible short in 7406. | ||
| PHILIPS |
20PT428A L01.2L AL
|
Damages diode 6405 | - 6405, this -15v rectifier diode has direct contact with the heatsink, any grounding or use as a measurement reference can cause the diode to open. | ||
| PHILIPS |
20PT428A L01.2L AL
|
Commands do not act (all). | - check possible leak in capacitor 2606 (1nf). - check diode 6681 (bat85) open. | ||
| PHILIPS |
20PT428A L01.2L AL
|
Commands act differently from the function. | - check resistors 3632 and 3633 (res) - check altered capacitor 2606, diode 6681, also review resistive loop values (3681 to 3689) possibility of leakage tact switches 1600 to 1603. | ||
| PHILIPS |
20PT428A L01.2L AL
|
White with traces (or some faint color). | - measure (videosupply) +160v, if it does not exist, check 3416 resistor 3, 9th open. - check possible leak in diode 6413 (1n4148). | ||
| PHILIPS |
20PT428A L01.2L AL
|
Illuminated areas on a dark screen. | - possibility of the 6405 diode open, this occurs because this voltage feeds the vertical integrated circuit that has a negative and positive supply and when one of the voltages is missing, the beam deviates upwards or downwards from the visible area, causing the effect on the screen. | ||
| PHILIPS |
20PT428A L01.2L AL
|
Whistle in operation (see noise8). | - check diode 6541 (10v zener diode). | ||
| PHILIPS |
20PT428A L01.2L AL
|
Appears dos/menu/characters/message - flashing. | - check smd capacitor 1nf 50v position 2606. | ||
| PHILIPS |
29PT554
|
Vertical with black stripes or open at the top or bottom | Check c 2409 open or leaking (47uf) | ||
| PHILIPS |
20PT222A
|
Does not come out of standby | Check diode 6461 and 6464 (1n4148) | ||
| PHILIPS |
20PT3331
|
Folded vertical with stripes on top | C2460 is smd 7462 | ||
| PHILIPS |
GR6-AL GR6-LS
|
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| PHILIPS |
GR6-AL GR6-LS
|
Vertical height and linearity | Geometry adjustment (step h) | For/me. step the smart key | |
| PHILIPS |
GR6-AL GR6-LS
|
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| PHILIPS |
GR6-AL GR6-LS
|
Drizzle in the canals | Adjust agc (pas/. c m. service) | Press menu to mem. channels | |
| PHILIPS |
GR6-AL GR6-LS
|
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| PHILIPS |
GR6-AL GR6-LS
|
Loop on channels | Aft adjustment (step d m.service) | Access to service mode | |
| PHILIPS |
GR6-AL GR6-LS
|
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| PHILIPS |
GR6-AL GR6-LS
|
There is only image on the av | Ts 7280 (with leakage) | Loops without synchronization |