Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Grundig | CUC5350 | Goes to standby after a short time | Replace C631 1uF, 63v | ||
Grundig | VS920 | No remote control operation or modulator output | Unlock the video with code 4934 + OK. Check if you have the remote control set on video 1. When you have the RP 95 remote you can set the remote to video 1 with code 8527 + OK | ||
Grundig | T55-640 CUC 6300 | Sleep timer box on screen, remote & front buttons not working | Changed the EEPROM IC847 24C04 | ||
Grundig | CUC5310 | Picture int disappears leaving snow on screen | Resolder the Xtal in the tuner | ||
Grundig | M70-490/9 TEXT CUC3800 | No sound, picture ok | When shifting up the channel frequency using the fine tuning, a very weak sound could be heard. Replaced the sound IF demodulator chip U2829BIC2110 | ||
Grundig | CUC5310 | Dead, no shorts found | Look for dry joints on the scan coil plug may not be visable also resolder the 12v and 5v regs | ||
Grundig | ST70-460 CUC4635 | Intermittent start up and tripping | Dry joint on R636, vertically mounted 4.7 ohm wirewound in sw mode circuit | ||
Grundig | CUC7301/3 | Power supply blown | This is often caused by a dry joint at C669 in the snubber network but also check the mains bridge rectifiers reservoir capacitor 47uF, 385v for o/c, this item is not included in the ususal p.s.u repair kits and if not checked may result in a repeat blow up ! | ||
Grundig | G1000 | Tripping with burning smell | LOPtx | ||
Grundig | G1000 | St/by only | No line drive - R314 6k8 2w o/c | ||
Grundig | G1000 | Blank raster and narrow | R315 10R o/c - supply to RGB stage also dry joints power trs | ||
Grundig | CUC7350 | Dead - mains fuse shattered | D60013/4 mains rects s/c, chopper FET T60020 IRFBC40 s/c used BUZ90 UC3843 replaced as prec,caused by dry joints chopper tfmr | ||
Grundig | CUC7350 | Dead - +8v supply absent | R61021 15R safety res in 8v reg o/c | ||
Grundig | CUC7301/3 | Mains fuse S1600 2.5A blows int | 1N4007 mains rect diode, also check IC630, T665chopper tr, zener D663, R661220R,Caps C661/663/656 & 667 | ||
Grundig | CUC7301/3 | Dead after dry joint C669 caused havoc | T665 MJF18004C chopper s/c; IC630 µC3842N/AN; D621-4 1N4007; R661 220R; D663 3v6 zener; CD651 ZD18v; D667 BA157 leaky. |