Sansui 5000
- Thread starter jnl1105
- Start date
I work backwards through the filter board (F-1051) out puts, tone board outputs (which go directly to F-1051 inputs), tone board inputs, equalizer board outputs, equalizer board inputs. With this pattern the first thing you are checking is whether the amp boards are getting a good signal as the amp boards are often the problem with these units. The only times I've had to go further was when I messed up working on other boards.
Then a no sound issue is probably the driver boards, they output to the coupling caps.
jnl1105
Active Member
so to verify voltages off of the driver boards the top 3 goto 809/810 with top red/orange being the 70vdc, the lower 3 goto 807/808 red/orange is set to half of the top red/orange,
What are the voltages I should be seeing on the blue/grey number 2 from the top and the black/white in Position #2 and the same with the lower 2 positions?
What are the voltages I should be seeing on the blue/grey number 2 from the top and the black/white in Position #2 and the same with the lower 2 positions?
At this point you have power and signal to the amp boards and apparently nothing coming out. Considering the condition of those boards trying to trouble shoot them is IMAHO a waste of time. Either replace those boards with reproduction ones or cut your losses an pass the unit on.