| Make | Model | Problem | Solution | Date |
| | | |
| Found: 7
|
| Nikkai | NT20 | Dead | C505 10µ low esr; D508 dry joints, R811 10R o/c | 14-09-04 |
| Nikkai | NT20 | Int dead | Int no volts at coll chopper tr due to wire connection on chopper tfmr never being soldered | 14-09-04 |
| Nikkai | NT20 | No signals or OSD | No 5v to micro pin 52 - R830 220R on psu sub panel o/c | 14-09-04 |
| Nikkai | NT20 | No sound or pic with whining | R448 fusible 4R3 o/c (no 12v) | 14-09-04 |
| Nikkai | NT20 | NO TUNING OR SEARCH | R830 220R OC + CHECK FOR DRYS | 14-09-04 |
| Nikkai | NT20 | Top field cramp | C313 2µ2 200v | 14-09-04 |
| Nikkai | NT20 | Top field foldover or cramp | C313 2µ2 200v | 14-09-04 |