Hi all
This amp has no audio .
Output transistors check out good .
No DC getting to speaker terminals .
80 V measured across bridge rectifier D 901 , therefore assume the + & - 40 V also present .
+ & - 12 V supplies at I C 01 & I C 02 respectively , also present .
No speaker protection relays on this model .
Audio present when taken from line out port , then through another amp , therefore assume at least part of the
p r e amp circuitry is working , depending on circuit layout .
This amp has no audio .
Output transistors check out good .
No DC getting to speaker terminals .
80 V measured across bridge rectifier D 901 , therefore assume the + & - 40 V also present .
+ & - 12 V supplies at I C 01 & I C 02 respectively , also present .
No speaker protection relays on this model .
Audio present when taken from line out port , then through another amp , therefore assume at least part of the
p r e amp circuitry is working , depending on circuit layout .
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