Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
JVC | C14E1EK Onwa | Set comes on to standby - relay clicks. | R323 ( 6k8 5watt ) fusible resistor o/c ( maybe Int ) between p42 of IC301 & HT rail. | ||
JVC | C14E1EK Onwa | No go | R323 ( 6k8 5watt ) fusible resistor o/c between p42 of IC301 & HT rail. | ||
JVC | C14E1EK Onwa | Int snowy pic at sw on with no OSD or R/C functs | OK once TMS73C47 micro reset (s/c pin 32 to chassis briefly). Caused by crack in print at front edge of pcb on track to pin 2 micro - hard to see due to covered in black ink | ||
JVC | C14E1EK Onwa | Dead - no st/by | Q902 2SB774 base emitter s.c. (used BC558). | ||
JVC | C14E1EK Onwa | Dead - HT high | C909/911 47µ cured HT problem but still dead; No supply pin 42 AN5601K dec/tb chip IC301. R323 6k8 5w fusible o/c | ||
JVC | C14E1EK Onwa | Dead | After replacement of usual caps the mains smoother C907 4700pF 500v in psu pri was found to be leaky |