Dicas Reparação GRUNDIG
Modelo - Chassis
Pesquisa: GRUNDIG Enviar Dica Resolvida
Resultados 797
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Grundig | CUC7303 | St/by LED blinks (tripping) | D667 BA157 -use BA159 in lieu, UC3842 supply rect (measured ok) also check 0R82 res in emitter, 2 x 1N4004 & res 220R & sm LS4148 diodes & HT control for o/c + chopper Tr & IC | ||
| Grundig | CUC7303 | off burning smell | bad joints mains sw | ||
| Grundig | CUC7303 | Led blinks at 1 Hz rate,no start-up | Change D667 (BA 157) even if it reads ok!!. | ||
| Grundig | CUC7303 | Dead with mains fuse o/c | Degauss positor | ||
| Grundig | CUC7303 | Dead apart from LED flashing | Sw mode trnfmr o/c winding between pins 5 & 7 (was able to repair) | ||
| Grundig | CUC7303 | Dead - PSU blown | Chopper tfmr, S2055 LOPTr & FOP chip | ||
| Grundig | CUC7301/3 | Dead - PSU blown | Caused by dry joint C669 - repair kits available from SEME or CHS also check C626 47u 385v for o/c | ||
| Grundig | CUC7301 | Dead aft few mins - line drive lost | Buffer CT169 BC858B sm tr faulty | ||
| Grundig | CUC7301 | Vert cogging, line speed int decreases with narrow pic & overheating LOPTr | CT169 BC858B sm pre-driver tr (2" back from jungle chip - LOPTx side of scart skt) | ||
| Grundig | CUC7301 | Tripping with front led flashing | No HT on dummy load - HT preset R654 470R o/c | ||
| Grundig | CUC7301 | St/by only | C667 100µ 35v | ||
| Grundig | CUC7301 | Sound only - burst of line at sw on only | Line osc at base of Line dr tr - nothing at collector. CT169 line osc buffer BC858B sm faulty. Note - HT is 105v when set working but rises to 129v in st/by or when non operational - normal? | ||
| Grundig | CUC7301 | Reduced width and line tearing when TV gets hot. | Replace surface mount transistor CT169 BC858B | ||
| Grundig | CUC7301 | PSU rebuild | Check mains smoother C626 47µ 385v or PSU may need rebuilding again | ||
| Grundig | CUC7301 | Poor regulation of psu | sm diodes cd 654 and cd656 leaky. They are type LS4148 but standard 1N4148 ,s work ok. |