Derek92994's 700 Ser II White Oak conversion

Dc offset 0.01 both channels at 142volt ac. Keep going?
 
Relays clicked at about 180 and 190 volts ac. Went up to 230v
 
Wonderful. Power down, let caps discharge, plug directly into wall, listen for relay clicks, let idle for 5 minutes, set bias to 375...
 
You are checkin bias between test point 2 (bias +) and test point 3 (out) correct?
 
The meters peg for a split second on power up before relay clicks. This does not seem normal?
 
I measured bias using positive in yellow bias L point and negative on black ground point. Same for right channel
 
Ok some confusion, i did that all on control board, forgive my memory, could not remember bias checking procedure
 
Bias checked and set to 375 using point 2 and 3 on backplanes
 
Back
Top