Trouble Shooting Flow Chart - Sampo SME-32DL5 Service Manual

TROUBLE SHOOTING FLOW CHART

STAND-BY POWER
Check C792=12V± ± ± ± 1V ﹖ ﹖ ﹖ ﹖
YES
Check output
stage
Output voltage abnormal
Compare V C789=31V± ± ± ± 4V Check
output Voltage at C789
YES
NO
Replace
abnormal parts
NO
Check Voltage at C709(+)
Normal
Check D789
ZD781, BR701
4-1
VER1.0
Abnormal
Check
F701, IC716,