HP 3457A Service Manual page 226

A273] FLOATING COMMON POWER SUPPLY @3457-665@2
+15V
+15V I
15v
-15V
Bi
L7e2
aur But
A —— 45V 7925mA
— —e— LINE FREQ
3457 1AR2A
Figure 8-15. Power Supplies
8-63/8-64