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WF1 ~ WF12 = Waveforms to be observed at
Input:
INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes.
(Brightness---Center Color---Center Tint---Center Contrast---Approx 70%)
WF1
1DIV: 50V 20µs
Q1512 Collector
WF2
1DIV: 50V 20µs
Q1522 Collector
WF3
1DIV: 50V 20µs
Q1532 Collector
WF4
1DIV: 200V 20µs
Pin 1 of CN571
WAVEFORMS
Waveform check points.
(Shown in Schematic Diagram.)
Color Bar Signal (with 1kHz Audio Signal)
reconnect to AC outlet and then turn power on.
GND
WF5
1DIV: 10V 5ms
Pin 4 of CN571
GND
WF6
1DIV: 5V 20µs
Pin 3 of WH501A
GND
WF7
1DIV: 5V 20µs
Q571 Base
GND
WF8
1DIV: 10V 20µs
Q572 Collector
9-1
GND
WF9
1DIV: 1V 5ms
Pin 7 of IC551
GND
WF10
1DIV: 500mV 20µs
Pin 31 of IC301
GND
WF11
1DIV: 500mV 500µs
Pin 3 of IC801
GND
WF12
1DIV: 2V 500µs
Pin 14 of IC801
GND
GND
GND
GND
P71D0WF
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