| Make | Model | Problem | Solution | Date |
| | | |
| Found: 9
|
| Sharp | C3720 | Int brill level & Height | Dry joint reg Q604 near mains sw | 14-09-04 |
| Sharp | C3720H | COMES ON THEN GOES STRAIGHT OFF into StBy | R521 3R9 OC also check D502 | 14-09-04 |
| Sharp | C3720H | No controls aft 2 hrs | Micro IX1559CEZZ | 14-09-04 |
| Sharp | C3720H | St/by only - EHT briefly at sw on | No supply to FOP stage - D502 & R521 in 24v supply faulty | 14-09-04 |
| Sharp | C3720H | Striations on picture & 'black fingers' | Lopt o/c pins 6 to 7. Can be replaced with HR7675. Short out Pin 8 to pin 5, then wrap the flying loose wire around the lopt 1 extra turn then fit in pins 11 & 12 reverse them if you get loud whistling ! | 14-09-04 |
| Sharp | C3720H | Tuning drift | IC1003 - used ZTK33 | 14-09-04 |
| Sharp | C3720H | Weak blue drive | D807 on small sub panel connected to crt base leaky (use 1N4148 in lieu) & TDA3566 dec chip | 14-09-04 |
| Sharp | C3720H 14A | Reverts to st/by at sw on | 122v HT to LOP but no line drive; R521 3R9 fusible res in FOP 24v supply o/c - check D502 | 14-09-04 |
| Sharp | C3720H 14A | St/by only after brief green LED | R521 3R9 in 24v supply o/c - next to LOPTx | 14-09-04 |