| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4551
|
| Philips | GR1AX | Smeary, washed out pic | C2060 680µ in 12v supply | 14-09-04 |
| Philips | GR1AX | Sound low vol | D6715 5v1 zener leaky (adj to micro IC7700) & disc ceramic caps around sound if chip - C2033 22nF | 14-09-04 |
| Philips | GR1AX | Sound slow coming on aft channel change | T7046 ( BC558 ) | 14-09-04 |
| Philips | GR1AX | SOUND SLOW TO RETURN AFTER CHANNEL CHANGE | TR7046 SC | 14-09-04 |
| 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)
| 14-09-04 |
| 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 | 14-09-04 |
| Philips | GR1AX | St/by only | C2631 22nF in st/by cct leaky | 14-09-04 |
| 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 | 14-09-04 |
| 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 | 14-09-04 |
| 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) | 14-09-04 |
|
|
| 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 | 14-09-04 |
| Philips | GR1AX | Tripped at sw on 95v HT present at LOPTr | No line drive - R3100 1R in 9v current sensing risen to 4R | 14-09-04 |
| Philips | GR1AX | Tuning - drift & flickering. | Replace ZTK33B voltage stabiliser. | 14-09-04 |
| Philips | GR1AX | Tuning drift | 33v zener & dropper checked ok - was tuner | 14-09-04 |
| Philips | GR1AX | Tuning unstable | Voltage on D 6702 is not stable.
Check/replace D 6702 (ZTK33B; 4822 130 30959)
| 14-09-04 |
| Philips | GR1AX | Two lines going around. | Check/replace C2606 (68 uF; 4822 124 41599).
| 14-09-04 |
| 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 | 14-09-04 |
| Philips | GR1AX | Vertical vibration in cold condition of the set | Change R 3052 into 1,8 kOhm (4822 116 52249) and
change C2053 into 150 nF (4822 121 41854)
| 14-09-04 |
| Philips | GR1AX | WEAK SOUND | CHECK DISC CERAMIC CAPS AROUND SOUND IF CHIP ESP C2033 ( 22nf ) | 14-09-04 |
| 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 | 14-09-04 |
| Philips | GR1AX | White Lines on bright scenes when heated | C2523 6µ8 line driver supply decoupler | 14-09-04 |
| Philips | GR1AX | Width excess & EW faulty | Tr7533 2SA1359 on crt base s/c & driver Tr7530 BC848 had failed | 14-09-04 |
| Philips | GR1AX | Will not start up from cold | Turn 95V preset down if set starts fault is in overvolts circuit try D6638 | 14-09-04 |
| Philips | GR1AX | Wont stop in search tune | C2031 22nF faulty - may read ok | 14-09-04 |
| Philips | GR1AX 14GR1221 | Dead | resistor 3300 4R7 o/c.cap 2301 4,7uF 350V s/c on multi voltage pcb | 14-09-04 |
| Philips | GR1AX 14GR1227/05B | Dead - HT at 1.5v at power supply whistling | Replace SF2D41 protection thyristor (6641) | 14-09-04 |
| Philips | GR1AX chassis | Arcing sounds on startup. | Change Capacitor 2523 6,8uF | 14-09-04 |
| Philips | GR1AX chassis | Arcing sounds on startup. | Change Capacitor 2523 6,8uF | 14-09-04 |
| Philips | GR2 | INT SHUTDOWN | CNR50 POWER CONTROL IC | 14-09-04 |
| Philips | GR2 | Int shutdown & poor response to R/C & OSD corrupted | CNR50 | 14-09-04 |