HP 3000 SERIES II System Service Manual page 187

HP 30311A Power Supply
BATTERY
TEST
FROM
HP 30310A
POWER
SUPPL Y
FRONT PANEL
+15V
I
r
~R-;-W;;:R-;A;;
..,
-....:...=...:..---------------------------------------------------------1-
TEST
L _ I~I~~R
_ ..J
RESET
+5VB
-5VB
-3VB
PSU TO HP 30310A
1 - - - + - - - - - f P
POWER SUPPLY
+12.7V8
+12VB
FRONT PANEL
r------,
I
+5V
I
I
INDICATOR
I
L __
~
_ _ ..I
OVER VOLTAGE
DETECTORS
UNDER VOLTAGE
DETECTORS
+12V
ADJ
®
DCE
DETECTOR
+5.00V REFERENCE
BATTERY
VOLTAGE
DETECTOR
25KHz
OSCILLATOR
BATTERY
INTERLOCK
CABINET' FRAME
DC
CONTROL PANEL
MODE
I
1 CALIBRATE
SELECT - 2 NORMAL
SWITCH 3 NO
BATTERY
BATTERY
CHARGE
VOLTAGE
DIVIDER
AND
FRONT
PANEL
+16.45V
F1
5A
SEVEN CELL
I
SEALED I
LEAD ACID
I
BATTERY
L - - -
IT-
BATTERY
INTERLOCK
(+20V LINE)
+17.3V
NOTES:
1. VOLTAGES SHOWN ARE FOR NORMAL OPERATION AT ROOM TEMPERATURE (j'22 Cl.
2. FUNCTIONS SHOWN SHADED ARE LOCATED ON THE MOTHER BOARD
PIN 30311-60002 OR THE HEAT SINK PIN 30311-60005.
3. INPUT AND OUTPUT CONNECTIONS ARE VIA BACKPLANE WIRING.
TO HP 30310A
POWE R SUPPL Y
(TEMP SENSE INPUT)
TO HP 30310A
POWE R SUPPL Y
(COMMON)
TO HP 30310A
POWER
SUPPLY
FROM
HP 30310A
POWER
SUPPLY
~~~~R~CL ~D~C~E:....._ ------------------t----r-----------------------------------,
PANEL
Figure B-5. HP 30311A Power Supply Detailed Block Diagram
B-25/B-26