RCA 1800 Operator's Manual page 94

Appendix D - Module Logic and Layout Diagrams _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 93
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(PI-21 .Y )
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(PI-22.Z)
(PI-R)
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(PI-D)
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92CL-29395
C LEAR -N
CPUO - N
CP UI - N
CPU2 -N
CPU3-N
CPU4-N
CPU5-N
CPU6 - N
CPU7- N
ClEAR - N
COOO-N
COOI - N
C002-N
C003-N
C004-N
C005-N
C006 - N
CD07 - N
CLOCK
ClEAR-N
OlO-N
Oll-N
012-1'1
013-N
or4-N
DI5-N
DI6-N
OI7-N
(JI-I I
(JI-301
(JI-311
(JI- 32
I
(JI-331
(JI- 341
(JI- 351
(JI- 3S1
(JI- 37)
(JI-211
(JI- 501
(JI-391
(JI-40)
(JI-411
(JI- 421
(JI-431
(JI- 441
(JI- 451
(JI- 46)
(JI-4)
(PI-IO)
(JI-9 )
(JI-IOI
(JI-III
(JI-121
(J1-I3
I
(JI-14 I
(JI-15)
(JI-IS)
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(
JI-17-20 )
JI-23 -26
Fig. 017 - Disk interface module COP18S813 logic and
circuit diagram.
Parts List for Fig. D17
C1
=
15 J.1F,
±
20%, 20 volts
J1
=
connector, 50 pin
R1
=
22 kilohms,
±
5%,1/4 watt
U1, U2, U3, U5
=
CA3083
U4, U6 =
CD406~BE
U7
=
resistor module, 3.3 kilohms
U8, U9
=
resistor module, 2.2 kilohms
U10, U11, U12
=
CDP1852D
U13
=
CD4081BE
Note:
Cable connector should be
aligned with arrow on J1.
22
Fig. 018 - Disk interface module COP18S813
layout diagram.
92CS-2940S