Philips pm2521 - Page 187

10.9.
Test
6
(Interrupt controller
test).
Settings signature
analyser
15
Setting
Edge Testpoint
Signalname
start
stop
clock
qualifier
qualifier
ground
(neg)
(pos)
J-
(pos)
li
(neg)
if (pos)
TPM
TPM
TP15
D1903
pin
D1903
pin
TP1
fP17]
[ml
ALE
7 azc/p1
2 AZ
logic
0
NOTE:
1.
Testrom
placed in D
1909 socket
(Both
ROMs
removed)
2. Short
circuit TP 10
and
TP
11
3.
Reading on
display:
LB
4. Adjust
with
R502
the signature on
0191
1
point 2 to
0000
5. Set
the PM2521
in
the function V .-r-r-
6.
Reference logic
0
=
0000
logic 1
-
A4A7
D1904
^P803S
ST 3478
820309