IBM 3278 Series Maintenance Information page 135

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J1 J2 J3
io70401l 030201 070809
10805021 060504 040506
12~~0~
090807 010203
I C1
\ -12
" 8
F1 - ..,
01D·PSl Top
,]-,
~
1 ....
-0~
1 Amp F2
SB .... _ ...... 0.25 Amp
.... "' SB
I \
18
C2
0
1
\ +8.5 /
\ ,
"
/ F6 '\
~ ~
I
6.2~:mp
\
I
8
C3
0
I
\ +5 /
\
/
"
,..-
---
F3 F5
3 Amp 1 Amp
SB
Figure 4-11. Fuse Locations - Low-Voltage Power Supply
J4
fo70401!
10805021
~9.2~~
OJ6
/ . . "8 . . . . ,
P
OJ7
(
~~
" \.....P5
\ 0 /
,
/
+
_
....
C4
-44
,..---,
I \
18
C6
0'
\ +44 /
\ /
,_
.....
Fuses
F1
Voltage
6.3
-12 '\~~
+8.5
F5 +44
F6 +5
Slip-On Conn to Ferro
PN
303549
111261
338165
855253
2130253
Voltages at J Connectors
J2 - 1,4,7 +8.5 Vdc
Max Ripple
(Peak to Peak)
0.25 Vac
2 +8.0 V
2:.
1 V 1.5 Vac
5,8 -12 Vdc 0_24 Vac
6 DC Return
3,9 6.3 Vac and Return
J3 - 1 -44 Vdc
2,5,8 +5 Vdc
3,6 -5 Vdc
4 +44 V
7,9 DC Return
0.88 Vac
0.15 Vac
0.15Vac
0.88 Vac