Philips pm2521 - Page 179

7
10.3.
Test
O
(RAM and I/O test)
Settings
signature
analyser
Setting
Edge
Testpoint
Signalname
start
Ti
(neg)
TPM
|P17l
(D 1904
pin
34)
stop
d"
(pos)
TPM
1P17I
(D1904pin
34)
dock S
(pos)
TP15
ALE (D1911
pin 11)
ground
—
TP1
Logic 0
NOTE:
1.
The
testrom
placed in
the D 1909
socket.
2.
Reference
logic
0
=
0000.
logic 1
=
HCH5
3.
Reading
display:
La
-10V