CHANGE TO:
DC
501
EFF
SN B040000-up
Page 1 of 2
DC
502
EFF
SN B040000-up
ELECTRICAL
PARTS
LIST AND SCHEMATIC CHANGES
REMOVE
:
U167
156-0100-00
Single 40 MHz J-K edge-triggered flip-flop,
replaceable by SN74H102
U169
156-0100-00
Single
40
MHz J-K edge-triggered flip-flop,
replaceable by SN74H102
Al
670-2102-01
MAIN
Circuit
Board Assembly
ADD:
670-3300-00
DIVIDE BY 5, Circuit Board
Assembly
U1
156-0118-00
Dual
100 MHz J-K
master-slave flip-flop,
replaceable by SN74S112
U2
156-0180-00
• Quad 2-input nand
gate, replaceable by
SN74S00N
M20,988/1073
Summary of Contents for DC 502
Page 4: ...DC 502...
Page 24: ...39 39 Relocated on back of board SN B070000 REV MAY 1974...
Page 33: ...FIG 1 EXPLODED...