HP Q METER 4342A - Troubleshooting, Oscillator Section

section v
Figure 5-12
YES
-c
Check: A8 ALC Amp.
NO
Check; A3 (54, Cl, Rl and CRl)
YES
Check- AlA RF Power Amp.
-
YES
Monitor waveform at AlA
I
PIN 6F using Oscilloscope.
iI
Is display as shown in Figure C?
Check* AlAl Impedance Converter.
NO -
NO
Check: AlAl (Ql and Q2)
‘CY
YES
Check* AlAl (Ql, Q2, andR)
-
Check* A8 ALC Amp.
NO -
Figure 5-12. Troubleshooting, Oscillator Section
5-21