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50
J3
49
Al
AZ
AS
33
Jy
5.
fe
JZ
uuT
RESET
RT
J
GND
=
\
—
CC
9132A-1606
RESET
GND
OVERDRIVE
TEST
POINT
TEST POINT
TP2
1
T™
T™®
24->32
40 PIN
PIN
ROM
MODULE
SYNC
MODULE
ROM
MODULE
CONNECTOR
CONNECTOR
CONNECTOR
DES
LAST USED
USED
NOT
EXTERNAL
-BUS
500
500
PROTECTION
PROTECTION
HYBRID
HYBRID
4HO7T
4HO7T
Al
AR
NOTES
ON
SIGNAL
NAMES:
1.
ST-X
MEANS
THE
NODE
CONNECTS
PIN
32
PIN
X
OF
THE
ROM
SOCKET.
2.
IS
SX
THE
SAME
SIGNAL AS
ST-X
EXCEPT FOR
PASSING
THROUGH
A
PROTECTION
HYBRID.
3.
IN
{)S
THE
NAMES
REFER
TO
THE
MAIN
uP LINE
WHICH CONTROLS
BOARD
THE
SELF
TEST
LINE.
9132A
Service
MAIN
BOARD
CONNECTOR
+5V
+5V
S§T~1
{(A20)
ST-2
(A117)
ST-3
(A16)
S$T-4
(A413)
ST-5
(AB)
ST-6
{A7)
8T-7
(AS)
ST-8
(A5)
ST-8
(A4)
ST-10
(A3)
ST-11
(A2)
ST-12
(a1)
statisti
ST-22
(A21)
ST-23
(A114)
ST-24
(A22)
ST-28
(A12)
ST-26
(A410)
ST-27
(a9)
deat
ST-28
(A14/+5V)
ST-29
(A158)
ST-30
(A17/+5V)
ST-31
Pepe
(A19)
ST-32
(XXX/+5V)
STDO
(DO)
STD1
(D1)
STDR2
(D2)
sSTD3
(03)
STD4
(Da)
STDS
(D5)
STO6
(D6)
STD?
(D7)
sTO8
(DB)
500
STDS
(089)
STD10
(010)
STD11
(D114)
PROTECTION
STD12
(D12)
HYBRID
STDA3
(D13)
4HO7T
ST014
(D114)
STD1S
(D195)
A3
ST-SYNC
SFT1ST
KEY
MAIN-BOARD~-BUS
GND
GND
GND
GND
GND
44
GND
SOPIN
RIBBON
TO
9132A-1006
Figure
5-2.
A2
Self
Test
PCA
5-19/5-20
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