Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Grundig | G1000 | bright raster sound ok | R316 10R in HT o/c Also replaced rect & smoother to be safe | ||
Grundig | G100 | Bright white raster - sound ok | R315 100R 1/4w fusible o/c | ||
Grundig | CUC95 | No pic, heaters or EHT - no line pulses from TDA1950 | EHT cap had been arcing and caused demise of TB chip TDA1950 & TDA1770 field chip | ||
Grundig | CUC95 | Field collapse | all 3 field pre-set pots had been twiddled & broken - replacement cure | ||
Grundig | CUC95 | FIELD COLLAPSE | R2754 1M PRESET | ||
Grundig | CUC95 | Dead - BU208 s/c. | R646 high. | ||
Grundig | CUC7890 | Focus poor | C07 680pF 12kv leaky | ||
Grundig | CUC7861 | St/by only - started as line collapse | R503 4R7 safety res, TDA8350, D503 BY228 s/c & T572 2SD1432 breaking down under load - also check D502, D438 33v zener | ||
Grundig | CUC7861 | Sound from bass speaker weak | CT4140 BC849C sm tr o/c | ||
Grundig | CUC7861 | Poor field,no tuning, no col, smeary pic | 45v supply low due to R552 2R2 o/c | ||
Grundig | CUC770 | LINE TEARING | CHECK OR CHANGE C501 ( 1000uF , 25V ) | ||
Grundig | CUC7530 | No H drive | (BC848) which is used as a line protector. | ||
Grundig | CUC740 | Sound couldn't be reduced &"88" in display | MC144111 IC2335 on tuning pcb | ||
Grundig | CUC740 | Pulling/rolling with weak sync | replace 2 x 1µ caps & 1 x 10µ cap in IF module | ||
Grundig | CUC740 | Pulling/Rolling - weak sync | 2 x 1µ & 1 10µ cap in IF module |