HP 212A - Page 24

TROUBLE SHOOTING CHART FOR MODEL 2 IZA PULSE GENERATOR
-
SYMPTOM DEFECTIVE SUGGESTIONS - CAUTIONS - CHECKS - ETC.
COMPONENT
1, RELAY CHATTER
V6
V 104
Replace Vb or interchange Vb and Vlb.
Check
PULSE LENGTH calibration and pulse shape.
Replace V104. Check PULSE RATE calibra-
ti on.
V105
V 106
2. JITTER ON LEADING
EDGE ONLY OF OUT-
PUT PWLSE
Replace V105.
Check maximum pulse delay.
Replace VlOb.
Replace defective capacitor. Check maximum
pulse length.
Replace V6.
Check rise time and PULSE
LENGTH calibration.
SHORTED CAPACITOR
IN PULSE LINE
V6
V104 )
CR104)
Not likely to occur.
I
#
r=
LENGTH calibration.
Replace V6.
Check rise time and PULSE
3, SLOW RISE TIME
Vb
Replace V.6 or exchange V6 and V16 for trial.
I
Check pulse shape and length.
4. NO PULSE
(SYNC OUT PULSE
AVAILABLE)
V6