Sound Out - Tandy 26-3334 Service Manual

Wave form l 2B
AC Ripple at Cathode of Dl4
Waveform 13
SOUND OUT
Waveform 14
Relay
Vertical: lV/DIV
Horizontal: Smsec/DIV
-68-
Trigger: INTERNAL
CH A: Pin 17 of IC7
lV/DIV
CH B: Pin 1 of IC7
2V/DIV
Horizontal: O.Smsec/DIV
Trigger:
INTERNAL CH A
CH A: Pin 9 of IC8
2V/DIV
CH B: Pin 39 of IC4
2V/DIV
Horizontal: lOmsec/DIV
Trigger: INTERNAL CH A