Wavetek 180 Instruction Manual page 20

POWER SUPPLY REGULATOR CHECK
^NO REGULATED + &^
-IBVdc AT TP2 8<TP3;
V FUSE OK y
UYES
+15 Vdc
REG NEAR
OV
YES
NO
YES NO
+15 Vdc REGULATOR
IS ASSUMED TO BE
IN CURRENT-LIMIT
MODE
-15 Vdc
REG NEAR
OV
+15 Vdc REGULATOR
IS ASSUMED TO BE
DEFECTIVE
YES
NO
-15 Vdc REGULATOR
IS ASSUMED TO BE
IN CURRENT-LIMIT
MODE
R1
& 03
OK
-15 Vdc REGULATOR
IS ASSUMED TO BE
DEFECTIVE
YES
YES
R13
& 07
OK
YES
05 -8
& iC2 CKT
OK
YES
"-24 Vdc
UNREGULATED
\ GOOD /
+15 Vdc ^
PARTIALLY
REGULATED
'^1 • 4>
CR5 &
IC1 CKT
OK
ISOLATE LOW Z
BY LIFTING +15V
JUMPERS
ISOLATE LOW Z
BY LIFTING -15V
JUMPERS
Figure 6-1. Troubleshooting Chart (Sheet 3 of 4)
6-4