HP 8340B Manual page 235

Table
E-l.
Motherboard Wiring List
Mnemonic
+12V
+12VUNREG
+12VU1
ADJ
+20V
+20VAC1
+20V AC2
+20V REF OSC
+20V UNREG
+22V
—25V/GHZ
-52V
-7V
REF
-10V
-10VAC1
-10VAG2
-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
-52
VOLT SUPPLY
-7V
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
+105V
+20V
26 4 VAC
26 4 VAC
OV/+20V
+31
2V
+22V
-25V/GHZ
-52V
-7V
-10V
139 VAC
139 VAC
+6 4V AT 133
GHZ
-10V
E-24
Motherboard Wiring List Change
5
HP 8340B/41B