This Sansui 9090 has the Flashing red light which means the unit is in protection Mode. The right channel cannot be biased. There is 1 - 2 volts DC on the speaker output. There should be 0 volts. I replaced an open 390 ohm fuse resistor and re-capped the driver board. Conditions improved but the DC voltage was still present on the Speaker output, adjusting the VR 02 pot had no effect. The Voltage will not go away. Transistor 02 on the driver board is defective and needs to be replaced. Freeze spray helped find it.
- 6 жыл бұрын
SANSUI 9090 STEREO RECEIVER Flashing Red light Speaker Protection Mode Troubleshooting
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