Sony Tektronix WFM 1125 Service Manual page 137

(A)
Positive
terminal of A60
C100 at 12.5
 0.5 V?
(See Figure
6-2)
Yes
Negative
terminal of A60
C120 at -15
1 V?
(See Figure
6-2)
Yes
Positive
terminal of A60
C130 at +5 
0.5 V?
(See Figure
6-2)
Yes
Replace A5 board
WFM 1125 Option 0A/0B/0C/0D Service Manual
No
No
No
Replace A60 board
Troubleshooting
6-23