22 — Communications Controller
22–8
CX20/CX30/CX34 Service Manual
Figure 22.3
Comms PCB – Links LK1, LK6, LK7
ÍÍÍÍ
ÍÍÍÍ
BAT1
SW2
PL5
PL1
SW1
SW3
LK1
LK6
LK7
D17
TP14
TP13
TP15
TP1
TP3
TP16
TP4
TP2
Link LK7
Link LK6
27512 (64k x 8) and 27C101
(128k x 8) EPROMs
27C020 (256k x 8)
EPROM
27C401 (512k x 8)
EPROM
11
11
11
Links are in the
1–2 position
1
LK1
LK1
LK1
1
1
11
LK1
1
11
LK1
1
20mA (talking to computer)
RS232
Link LK1
Содержание CX20 SERIES
Страница 133: ...11 Main PCB 11 4 CX20 CX30 CX34 Service Manual Figure 11 1 Main PCB Electrical Connections See Tables 11 1 and 11 2 ...
Страница 137: ...11 Main PCB 11 8 CX20 CX30 CX34 Service Manual Figure 11 2 Main PCB DIL Switches and Potentiometers ...
Страница 246: ...25 Appendices 25 9 CX20 CX30 CX34 Service Manual 1 Voids printed on receipt 2 Voids not printed on receipt ...
Страница 258: ...PL 1 CX20 CX30 CX34 Service Manual Section PL Parts List ...
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Страница 317: ...Addendum A Phase 1 4 and CX34 Parts List A 30 CX20 CX30 CX34 Addendum A ...
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Страница 323: ...Contents B 2 Addendum B ...
Страница 343: ...Addendum B Phase 1 5 1 5 3 and New Main PCB B 22 Addendum B ...
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Страница 351: ...PL Parts List Devlin Keyboard C 6 Addendum C ...
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