Heathkit H9 - Troubleshooting Waveforms

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Page43
@
TROUBLESHOOTING
WAVEFORMS
If
you
encounter a
problem,
check the following
waveforms.
Use a dual-trace
oscilloscope to compare
the
time-related signals to
the
TPU
timing signals.
Timing
Diagrams
#7
-
#4
(in
the
Illustration
Booklet,
Pages
3 through 6) and the
Circuit Description
will
also help
you
understand the
timing
relationships
of
the Terminal functions.
s20?-2:,P302-8
HOR IZONTAL
SYNC
Time/cm
l0uSEC
-l
?12.9
-USEC
51.6 SEC
6V
4V
2V
()V
Vo
lts
/c
m