HP 3562A Service Manual page 502

S E RV I C E
C. Oscilloscope Signa. Waveforms
The osc i l loscope p l ots are used for troubleshooting the A4 Local Osc i l l ator. N ote that
a l l the meas u rements are taken w ith a 1 0:1 probe. Other notes u n ique to a meas u rement
are written next to the wavefor m .
Service procedures described in this section are performed with
the protective covers removed and power applied. Energy a vailable
at many points can, if conta cted, result in personal injury.
Probe: 10:1
Setup
SYNC2 and COS
Con nect CH1 to A4 TP8
Connect CH2 to A4 TP24
Osc i l loscope:
CH1 V/Diy
CH2 V/Diy
CH1 Cou p l i n g
C H 2 Cou p l i n g
Time/Diy
Trigger
SYNC2 and N LD
Connect CH1 to A4 TP8
Con nect C H 2 to A4 TP1 7
Oscil loscope:
CH1 V/Diy
C H 2 V/Diy
CH1 Coup l ing
C H 2 Coup l ing
Time/Diy
Trigger
8-52
WARNING
Table A4-4 LO Signal Waveforms
Important
Parameters
Time
relationship
Pulse s hapes
200 mV/Diy
200 mV/Diy
dc
dc
1 p,s/Diy
CH1
Time
relationship
200 mV/Diy
200 mV/Diy
dc
dc
1 p,s/Diy
CH1
Waveform
OVd,
OVd,
#1
#2
MO D E L 3562A