HP 3562A Service Manual page 534

S E RV I C E
Component
U202
U21 3
1 2 . Set a l l j u m pers to normal pos ition.
E. Oscilloscope Signa' Waveforms
The osci l loscope plots are used for troubleshooting the A7. N ote that a l l the meas u rements
are taken with a 1 0:1 probe. Other notes u n ique to a meas u rement are written next to the
waveform.
Service procedures described in this section are performed with
the protective covers removed and power applied. Energy available
at many points can if conta cted, result in personal injury.
Set a l l j u mpers in normal (N) position
Connect ground to A7 TP6, A7 TP1 1
Probe type 1 0:1
Power On
Setup
&
8 M H z 4 M H z
Connect CH1 to A7 TP3
Connect CH2 to A7 ) 5-3
Osci I loscope:
CH1 \1Div
C H 2 \1Div
CH1 Cou p l ing
C H 2 Coupl ing
Time/Div
Trigger
8-84
Table A7-7
A7 Signature Analysis Test #4 cont.
Pin Signature
9 OF40
1 0 40CF
1 1 48H6
1 3 5ep8
1 4 677H
1 5 0769
1 6 4 P F6
1 7
9 H C8
2 0797
3 7 H P7
7 2A6H
1 0 7A8H
1 4
2 H87
W ARNING
T able A7-8
Important
Parameters
Time
200 m\1Div
200 mV/Div
dc
dc
50 ns/Div
CH 2
Component Pin
U31 3 1 3
1 4
1 5
1 7
1 8
U31 4 1 5
1 6
FPP W aveforms
0.00000 sec
mE
OVd,
MO D E L 3562A
Signature
FFPA
C P3 F
7A70
0000
0000
7A70
7A70
Waveform
250.0DD nsec
SOCl.OOO nm
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