Grundig CUC4400 Repair Tips
Search: CUC4400 Grundig
Results 10
Results 10
| Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
|---|---|---|---|---|---|
| Grundig | CUC4400 | E.H.T very weird, E.H.T. transformer makes strange sound, no image | Measure pin 1 of the TDA2579, if there are vertical pulses then measure pin 11 of the TDA2579 for hor. pulses, If missing, or voltages are very low Mv replace the IC. The ref. voltage on pin 12 will be present if the TDA2579 works correctly. Measure on pin 10 of the PS | ||
| Grundig | CUC4400 | No image from tuner. Image from AV input rgb is rolling over the screen no synchronisation | Check if teletext is present at the top of the screen. If this is ok replace the TDA5931 normally the sound will also be missing | ||
| Grundig | CUC4400 | SEVERE PICTURE DISTORTION IN IF STAGE | TDA5931 US | ||
| Grundig | CUC4400 | Poor pic with ringing | TDA5931 IC2210 on if panel | ||
| Grundig | CUC4400 | No sound or Picture, EHT normal, screen is black. | Change T2213 and T2221 on IF board. No leaks or any other defects were detected. | ||
| Grundig | CUC4400 | No sound or Picture, EHT normal, screen is black. | Change T2213 and T2221 on IF board. No leaks or any other defects were detected. | ||
| Grundig | CUC4400 | Int refuses to go to st/by | Check mains sw wiper contacts | ||
| Grundig | CUC4400 | Flickering/lines with pic breakup | C2257 100n 63v in line osc | ||
| Grundig | CUC4400 | ERATIC LINE SYNC | C2257 100nF 63v | ||
| Grundig | CUC4400 | Chan changes & vol varies int | IR detector TFMS3300 |