| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Philips | GR2.4 29PT5301/05 | Dead with mains I/p fuse o/c | Check for dry joints PSU pri | ||
| Philips | GR2.4 25PT632A/05 | Dead - mains fuse in plug blown | Caused by arcing on/off sw | ||
| Philips | GR2.4 | Unstable zoom and broken vertical lines | Check contact of connector Y95 on the MODULE 16/9. | ||
| Philips | GR2.4 | Trips | Check fus res R3588 for o/c - if it is then replace C2549 scan coupling cap - usually 680nF 250v | ||
| Philips | GR2.4 | Tripping with Green LED flashing in sympathy (After cust tried connecting his own spkrs) | hole in the stereo audio output chip (TDA1521 IC7278) mounted on a sub board to the left of the main chassis and also one of those small rectangular CP's (cir ref 1242) marked "MP160" on the main board (left edge) was O/C. IC7240 (also a TDA1521) mounted along the left edge of the main board cured the tripping. | ||
| Philips | GR2.4 | Tripping continuously with bursts of EHT OK with LOP sect dis'd | Check 1534 orange col fuse also C2550 680n 250v | ||
| Philips | GR2.4 | Tripping | To disable trip unsolder pin 2M37 on power control module. Fault was caused by Audio O/P chip IC7240 TDA1521 & o/c CP1601 2.5A cct prot in -16v supply | ||
| Philips | GR2.4 | Totally inoperative. | Replace IC7614 (CNR 50; 4822 130 30992) and SOPS transistor T7625 (BUT12-AF; 4822 130 62735) | ||
| Philips | GR2.4 | Supply is hickupping. | Replace LOT L5545 CML OP503. | ||
| Philips | GR2.4 | Spare part information | Spare part information From QG04 onwards the following L.O.T are used: 25" and 28" Black line S sets use L.O.T 4822 140 10501 25" and 28" Black matrix sets use L.O.T 4822 140 10503 21" sets with 90 degree picture tube use L.O.T. 4822 140 10499 for | ||
| Philips | GR2.4 | Sound mute depending on video-contents of the picture | Solder a 12 volt zenerdiode (4822 130 81288) with cathode to the positive side of (+) of C2246. Solder the anode of this zenerdiode to earth. Solder a 150 Ohm (4822 116 52211) resistor to the cathode of the zenerdiode. Solder the other side of this resist | ||
| Philips | GR2.4 | Set totally inoperative, mainfuse F1600 (2.5AT) blown. | Replace T7625 (BUT12AF) and D6602-6605 (short circuit). Replace IC7614 CNR50 9407. | ||
| Philips | GR2.4 | Set totally inoperative | Check C2549 470nF/400V (4822 121 42074). | ||
| Philips | GR2.4 | Set inoperative; Squeaking tone from backside TV. LOT defective. | Replace LOT (pos 5545) and line transistor T7545. Check R3570. | ||
| Philips | GR2.4 | Set inoperative. Supply in overload protection. | Replace LOT L5545 because of shortcircuit 4822 140 10499 for 21" 90 degrees 4822 140 10501 for 25"/28" |