HP 3562A Service Manual page 559

MOD E L 3S62A
Test 1 is activated by perform i n g the fo l l owing steps:
a. Move j u m pers J 3 and J4 to the test (T) pos ition.
b. Move j u mper ) 1 to the T5T2 position.
c.
P ress the reset switch on the CPU board (A2 51 ).
Component
U301
and
U303
address
(input)
l ines
U301
on ly;
data
(output)
l i nes
Retu rn a l l j u m pers to the normal (N) position (either position OK for ) 1 ).
2. Digital Signcll t ure Test 2
Table A9-3
Signal
G round
C lo c k
Stop
Start
Test 2 is activated by perform ing the fol lowi ng steps:
a. Move j u mper J2 to the test (T) position.
Move j u mper J1 to the T5T1 position.
b.
c.
Press the reset switc h on the CPU board (A2 51 ).
Table A9-2 FFT Signature Analysis Test #1
Pin Signature
8
H 62 U
7 C21 A
6 HA07
5 HOAA
4
P030
3
4442
2 4U2A
1 0772
23 9635
22 1 734
21 8P54
9 8551
1 0 91 CO
1 1 3COC
1 3
U 6 H 7
1 4 6 P56
1 5 29C5
1 6 C F PC
1 7 A484
FFT Signature Analyzer Setup #2
Polarity
N e g edge
Neg edge
Pos edge
Component Pin
U303
9
on ly; 1 0
d ata 1 1
(output) 1 3
l i nes
1 4
1 5
1 6
1 7
Connection
A7 J 5-1
A7 J 5-3
A7 J 5-4
A7 J 5-5
S E RV I C E
Signature
366P
2 U F H
F7A2
051 0
0637
2AA9
CAPA
0442
8-1 09