IBM 2025 Maintenance Manual page 236

Processing unit
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Connectors
Diode Card 2
Diode Card 1
Access Hole for
Black Wire
to
Pin J06
on
SA
Z-Driver
Yellow Wire (-30v)
to Pin
J07
on SA Z-Driver
70ohms
Red Wire to
..,.,....._-o----\
Pin G07 on
70ohms
SA Z·Driver
Bi
t
SA
Z
-Driver
B1G2
B1H2
B1J2
B1K2
B1L2
B1M2
B1N2
B1P2
B102
B1R
2
B1S2
B1F4
B1G4
B1H4
B104
B1R4
B1S4
B1T4
Y
Read
X
Write
53ohms
53ohm
s
Yellow
From
To
Black (Ground)
Y
Read
B2U4B12
Y
Write
B2U4D06
From
To
X Read
B2U4G07
Y
Read
B2U4D12
X Write
B2U4J06
Y
Write
B2U4B08
X
Read
B2U4G09
X
Write
B2U4J09
Figure 6-7.
Main
Storage Components (Card
Side
)
2025 FEMM (7
/69)
6-7

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