HP 8340B Manual page 514

Table
E-l.
Motherboard Wiring List
Mnemonic
+12V
+12V UNREG
+12VU1ADJ
+20V
+20V AC)
+20V AC2
+20V REF OSC
+20V UNREG
+22V
--25V/GHZ
-52V
-TV
REF
-10V
-10VAC1
-10V
AC2
-10VRTN
-10V UNREG
Description
REGULATED +12
VOLT SUPPLY
UNREGULATED SUPPLY TO
+12V
+12V
REGULATOR ADJUSTMENT TERMINAL
REGULATED +20 VOLT SUPPLY
TRANSFORMER SECONDARY FOR
+20V
SUPPLY
TRANSFORMER SECONDARY FOR +20V SUPPLY
SWITCHED +20V SUPPLY TO 10 MHZ
REF.
UNREGULATED SUPPLY TO +20V
REGULATED
+22
VOLT SUPPLY
-
25 VOLTS/GHZ OUTPUT FREQUENCY
REGULATED
-5.2
VOLT SUPPLY
-TV
REFERENCE SUPPLY
REGULATED
-10
VOLT SUPPLY
TRANSFORMER SECONDARY
FOR
-10V
SUPPLY
TRANSFORMER SECONDARY FOR
-10V
SUPPLY
-10V
SUPPLY SERIES PASS COLLECTOR
UNREGULATED SUPPLY TO
+10V
Type
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
Levels
+12V
+20V
+ 10.5V
+20V
26 4 VAC
26 4 VAC
OV/+20V
+31
2V
+22V
-25V/GHZ
-52V
-TV
-10V
13.9 VAC
13.9
VAC
+
6.4V
AT 133 GHZ
-10V
E-24
Motherboard Wiring List
HP 8340B/41B