| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4
|
| B & O | L2502 | No sound | IC101 pin 7 (5.9v) = 0v C111 100µ 25v s/c | 14-09-04 |
| B & O | L2502 (3866) | Dead & squealing | Resolder a mass of dry joints on the PSU & line output panel then replace the short circuit line output transistor (TR11) S2000A3. | 14-09-04 |
| B & O | L2502 3866 | Int starting , chopper drive present. If pin 3 IC1 , LM358 low check R14 & R16 , 220k. | If still no go , check TR20 on Tuner IF PCB . | 14-09-04 |
| B & O | LX2502 | Field distorted | Replaced C44, C45, C46, C49, C26, and C54 plus FOP chip TDA2170 that orig had dry joints | 14-09-04 |