Wavetek 193 Instruction Manual page 67

6-19
Figure 6·22. Amplitude Modulation Troubleshooting
CHECK
J1 PIN 1
CHECK FUNCTION
SWITCH
(GENERATOR
BOARD) SW5-F
REFER TO
AMPLITUDE
MODULATION
RECEIVER
GUIDE 6.6.7
REFER TO
AMPLIFIER
GUIDE
6.4.15
YES
SWEEP/MOD BOARD
YES NO
CHECK MODE
SWITCH (SWEEP/
MODE BOARD)
SW3-A
REFER TO
AMPLITUDE
MODULATION
LEVEL SHIFTER
GUIDE 6.6.8
MAIN GENERATOR BOARD
REFER TO
AMPLITUDE
MODULATOR GUIDE
6.6_6
CHECK
J1 PIN 10
CHECK
FUNCSWITCH
GENERATOR BOARD
SW5-D
REFER TO
SINE CONVERTER
AND PREAMPLIFIER
GUIDES 6.4.13
AND 6.4.14
YES
NO
YES
MAIN GENERATOR BOARD
t
YES
YES NO
REFER TO
AUXOUT
AMPLIFIER
GUIDE
6.6.9
CHECK FUNCTION
SWITCH
(SWEEP/MOD
BOARD) SW2-A
CHECK MODE
SWITCH
(SWEEP/MOD
BOARD) SW3·D
REFER TO
LOOP WILL
NOT
OSCILLATE
6.5.4
NO