Philips Repair Tips
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Results: 14209
Results: 14209
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
GR1AX
|
Vertical vibration in cold condition of the set | Change r 3052 into 1,8 kΩ (4822 116 52249) and change c2053 into 150 nf (4822 121 41854) | ||
| PHILIPS |
GR1AX
|
Update chassis manual; different types of micro-pr | Update chassis manual; different types of micro-processors. ----------------------------------------------------------- in chassis manual gr1-ax version 2: (gb) 4822 727 18084, (nl) 4822 727 18083, (d) 4822 727 18085 (f) 4822 727 18086, (e) 4822 727 18 | ||
| PHILIPS |
GR1AX
|
Two lines going around. | Check/replace c2606 (68 uf; 4822 124 41599). | ||
| PHILIPS |
GR1AX
|
Tuning unstable | Voltage on d 6702 is not stable. check/replace d 6702 (ztk33b; 4822 130 30959) | ||
| PHILIPS |
GR1AX
|
Tuning drift | 33v zener & dropper checked ok - was tuner | ||
| PHILIPS |
GR1AX
|
Tuning - drift & flickering. | Replace ztk33b voltage stabiliser. | ||
| PHILIPS |
GR1AX
|
Tripped at sw on 95v ht present at loptr | No line drive - r3100 1r in 9v current sensing risen to 4r | ||
| PHILIPS |
GR1AX
|
To release hotel mode ( child lock ) . | Put set on programme 38 , press either store & pr - ( to lock ) & store & vol - ( to unlock ) , or , press pr - & vol + ( to lock & u | ||
| PHILIPS |
GR1AX
|
To over ride protection cct | Unsolder gate of thy6641 & slowly power up via variac whilst monitoring ht at pin 6 of loptx (should reach 95v) | ||
| PHILIPS |
GR1AX
|
To check psu without lop stage connected | Do not use 60w bulb as dummy load - psu will not start - ok to just dis coil l5660 | ||
| PHILIPS |
GR1AX
|
St/by only - 95v ht only 5v | With 100v ac i/p, ht = 80v ; any higher i/p shut down the set with pulsing reset line on micro; d6671 zener bzx79-f4v3 faulty | ||
| PHILIPS |
GR1AX
|
St/by only | C2631 22nf in st/by cct leaky | ||
| PHILIPS |
GR1AX
|
Spare part information | Spare part information ---------------------- in service manual "gr1-ax version 2" the specific partslist for the /58r is not mentioned. for this /58r use parts: position 1000: tuner uv917e/phono; service code 4822 212 23696 positions 1600, 2606, 3603, 6 | ||
| PHILIPS |
GR1AX
|
Sound varies with picture content | Replace wire link 9511 (near tuner) with a 6.2 volt zener diode bzx79-b6v2 (4822 130 34167) and change c2030 into 22uf (5322 124 41431) | ||
| PHILIPS |
GR1AX
|
Sound slow to return after channel change | Tr7046 sc | ||
| PHILIPS |
GR1AX
|
Sound slow coming on aft channel change | T7046 ( bc558 ) | ||
| PHILIPS |
GR1AX
|
Sound low vol | D6715 5v1 zener leaky (adj to micro ic7700) & disc ceramic caps around sound if chip - c2033 22nf | ||
| PHILIPS |
GR1AX
|
Smeary, washed out pic | C2060 680µ in 12v supply | ||
| PHILIPS |
GR1AX
|
Slow start up fropm cold with no osd | Tr7765 (bc548) s/c between b-e, c2523-68uf | ||
| PHILIPS |
GR1AX
|
Shuts once in a while and goes to stand-by. | Check c2631 (22nf; 4822 122 30103) on leakage. |