HP 8340b - 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