Philips Repair Tips
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Results: 14233
Results: 14233
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
GR1AX
|
Width excess & ew faulty | Tr7533 2sa1359 on crt base s/c & driver tr7530 bc848 had failed | ||
| PHILIPS |
GR1AX
|
White lines on bright scenes when heated | C2523 6µ8 line driver supply decoupler | ||
| PHILIPS |
GR1AX
|
Whistling noise (from lot). | 1) glue the plastic lugs of the lot l5530 with silicon or equivalent lute (non-reactive) at the copper track side of the pwb to damp off vibrations which causes the wistling. 2) apply a non hitachi lot l5530; 4822 140 10369. remarks : the | ||
| PHILIPS |
GR1AX
|
Weak sound | Check disc ceramic caps around sound if chip esp c2033 ( 22nf ) | ||
| 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 ) |