| Make | Model | Problem | Solution | Date |
| | | |
| Found: 11
|
| JVC | C21M3EK | Bottom cramp, no col, pulling, warbling sound | Low 12v supply (9v) on D405 - R421 0R68 hi res | 14-09-04 |
| JVC | C21M3EK | Dead | C910 0.1µ | 14-09-04 |
| JVC | C21M3EK | Line freq off & lack of field bottom scan | R421 0R68 risen to 5R | 14-09-04 |
| JVC | C21M3EK | No R/C operation | X601 xtal wrong freq fitted - should be 4Mhz not 17Mhz | 14-09-04 |
| JVC | C21M3EK | No sigs or R/C | ZD603 5v6 zener faulty causing 5v to micro low at 4.4v | 14-09-04 |
| JVC | C21M3EK | No start up - maybe int. | C901 ( 0.1uf ) in startup cct | 14-09-04 |
| JVC | C21M3EK | No vision | CMOS switch IC202 4066B - comp video disappeared through it | 14-09-04 |
| JVC | C21M3EK | Power supply not starting up , may be intermittant. | Replace C910 0.1uF | 14-09-04 |
| JVC | C21M3EK | St/by only | HT present 110v. Replaced C909, C911 47µ 50v 105deg, ZD401 12v zener s/c, R419 1R0 2w o/c | 14-09-04 |
| JVC | C21M3EK Onwa | Field collapse, no sound after replacing C909/911 R419 & 12v Zener | R421 0R68 ?w fusible o/c; D406 s/c - used BY228 | 14-09-04 |
|
|
| JVC | C21M3EK Onwa | No sound | IC601 micro has no PWM o/p on vol cont pin - chip faulty | 14-09-04 |