Waveforms 1/2 - Zenith XBV243 series Service Manual

* IC301 Oscilloscope Waveform
IC301 Pin IC301 Pin
100mV/10msec DIV 100mV/10msec DIV
VV/EE PB
(Main De-Emphasis out) (Main De-Emphais
Peacking)
IC301 Pin IC301 Pin
100mV/0.2msec DIV 1.0V/20msec DIV
REC/PB VV/EE
(2fsc) (C-SYNC OUT)
IC30 1 Pins 58, 60 IC30 1 Pin
200mV/20msec DIV 100mV/0.2msec DIV
VV/EE PB/REC
from 1H CCD Pin (3.58MHz X-TAL IN)
to 1H CCD Pin
IC30 1 Pins 91, 92, 93, 94
500mV/2msec DIV
EP REC
(REC RF)
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL
VR168 - 923-03485
AND/OR SHADING. REPLACE ONLY WITH PART NUMBERS SPECIFIED.

Waveforms 1/2

IC301 Pins 18, 21, 23 IC301 Pin
100mV/10msec DIV 200mV/10msec DIV
VV/EE EE
(VIDEO IN)
IC301 Pin IC301 Pin
500mV/10msecDIV 200mV/20msec DIV
VV/EE PB
(VIDEO OUT) (C.OUT)
IC301 Pin IC301 Pins 86, 87, 88, 89
100mV/5msec DIV 500mV/2msec DIV
PB SP REC
(PB RF out) (REC RF)
* IC501 Oscilloscope Waveform
IC501 Pin 24 IC501 Pin 27 IC501 Pin
REC/PB QUE/REV QUE/REV
IC501 Pin 40 IC501 Pin 39 IC501 Pin
REC/PB REC/PB REC/PB
ALL SYMBOLS WITH "M" ON END OF DESIGNATOR
7-16
INDICATE SURFACE MOUNTED COMPONENT
27 IC501 Pin 31 IC501 Pin 32
REC REC
54 IC501 Pin 38 IC501 Pin 37
REC/PB PB
D35E COMBO - SHEET 16