Alpha Microsystems AM-990 Manuale di servizio - Pagina 18

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AM-990 SBC Computer Service Manual
MEMORY
EXPANSION
FLOATING POINT
CO-PROCESSOR
SOCKET
1
W1
W12
W17
LINK TERMINATION
JUMPER
JUMPER IN = ENABLED
JUMPER OUT = DISABLED
W17
W13
W13
J13
LINK
DSS-10524-00, Rev. A01
W18
REMOTE RESET
JUMPER IN = ENABLED
FRONT PANEL
JUMPER OUT = DISABLED
DISPLAY
J8
J7
J6
J5
CPU
U128
U127
U126
U125
BOOT PROMS
POWER CONNECTOR
W14
W15
J12
J15
J14
VCR
REMOTE
VIDEO
VIDEO
OUT
IN
Option Locations on the AM-145 Board
1
W18
W11
W100
50-PIN SCSI
CONNECTOR
SSD SOCKET
U124
36-PIN FLOPPY
CONNECTOR
W9
W2
60-PIN I/O CONNECTORS
J21
J20
BOOT
SERIAL
SERIAL
SWITCH
PORT
PORT
1
0
Page 15
On B. Revison artwork
and earlier W100 is
hard-wired.
1
J4
J16
1
W1A
1
J9
232 / 422
232 / 422
W8
W5
W7
W4
W3
W6
SW1
MAC5 7 6