IBM 6400 series Maintenance Manual page 301

J108
Hammer Bank Logic
TOROID
50 MHz
1
2
HMR DAT
3
HMR DAT RET
4 HMR CLK
5 HMR CLK RET
6 CMD DAT
CMD DAT RET
7
CMD CLK
8
CMD CLK RET
9
10
TOROID
50 MHz
J2
EC Diagnostics
+15V
J116
Shuttle Motor
4.7V
3.0W
1 SHUT A
2
SHUT B
3
SHUT C
CAUTION: <5> Do not remove or replace
0.01 F
the NVRAM. The NVRAM contains a
10%
50V
lithium battery that can explode if it is
replaced incorrectly. NVRAM is replaced
only at the factory.
VCC
10K
1%
0.1W
1
EC DB TXD
2
EC DB RXD
3
4
NC
5
PPR TRIG
6 PPR MOVING
7 FT EVENT
8 MPU OUT
9 SHUT DIR
10
Flash: 80–pin SIMM
J10 = Bank 1
J11 = Bank 0
DRAM: 72–pin SIMM
(See page 224.
J15 = Bank 1
J16 = Bank 0
)
(See page 224.
Controller, CMX
Terminating Resistors
(See page 242.)
J1
2–PIN JUMPER
J13
2–PIN JUMPER
)
J12
2–PIN JUMPER
J14
2–PIN JUMPER
J5
2–PIN JUMPER