L17WF9-2
Input: NTSC Color Bar Signal (with 1kHz Audio Signal)
INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes.
reconnect to AC outlet and then turn power on.
(Brightness---Center Color---Center Tint---Center Contrast---Approx 70%)
WF1 ~ WF15 = Waveforms to be observed at
Waveform check points.
(Shown in Schematic Diagram.)
1DIV: 200V 20µsWF9
1DIV: 10V 5ms
CN 571 Pin 4
WF10
1DIV: 500mV 20µs
IC 111 Pin 23
WF12
1DIV: 500mV 200µs
IC 31 Pin 9
WF14
1DIV: 500mV 20µs
IC 31 Pin 2
WF13
1DIV: 1V 5ms
IC 551 Pin 7
WF15
1DIV: 5V 20µs
WH 501A Pin 3
WF11
CN 571 Pin 1
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