IBM System/34 Maintenance Manual page 57

05-640 Feature Power Supply 0
Feature power supply D is a +5 Vdc power supply. Its
output is used on the A-A 1 board wh'en memory is
expanded to be greater than 128K bytes. Feature power
supply D also requires adding the feature distribution
assembly if it is not already installed. See FSL page
Y A 140. The circuit board of feature power supply D
contains circuits for sensing undervoltage, overvoltage,
and overcurrent conditions.
TB-8
2
3
4
5
Common
200 Vac 2
(50 or 60
Hz)
208 Vac/60
Hz,
or
220 Vac/50
Hz 3
230 Vac/60
Hz,
or
235 Vac/50 Hz
4
/
'/
C3
/------
/ (50
Hz
only) 11
TB-8
Note: For connector pin locations,
see 05-210.
8
9
10
/"
C3
+5V
Filter
o
o
32 05-640
+5Vdc
+5 V Return
~=~
'~'Il
'-~
Feature
Distribution
Assembly
PDTB2
r--~
7
J19
\""
..
-,;'
(-',
\
,
........
_
..
.,.,
..
(-"
'-.._
....
J23
J24
\
\
.....
~
..
'
..
/