If you have a Sansui 8080 or 9090 in protection, yet the outputs are good, your problem is often the fusible resistors being open or changed value. This applies to the F-2436-1 driver board.
The resistors you need to replace are as follows" R47, R48, R49 & R50 4.7 Ohm 1/4 Watt. R39 & R40 10 Ohm 1/4 Watt. R43 & R44 22 Ohm 1/4 Watt. R29 & R30 390 Ohm 1/4 Watt. Finally R41, R42, R45, R46 150 Ohm 1/4 Watt.
Now would be a great time to replace the caps on the driver board too.
If the outputs are damaged then you no doubt have more issues on the driver board as well. Avoid eBay output transistors. Most are Chinese counterfeits.
Негізгі бет Sansui 8080 9090 Bad Fusible Resistors Keep Unit in Protection. DC and BIAS Alignment.
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