Waveforms - Durabrand DCT2405R Service Manual

WF1 ~ WF16 = Waveforms to be observed at
Waveform check points.
(Shown in Schematic Diagram.)
Input:
INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes.
(Brightness---Center Color---Center Tint --- Center Contrast---Approx 70%)
WF1 1DIV: 0.5V 20µs
IC 111 Pin 26
WF2 1DIV: 0.5V 20µs
IC 111 Pin 14
1DIV: 2V 20µs
WF3
Q1511 Base
WF4 1DIV: 2V 20µs
Q 1521 Base
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WAVEFORMS

NTSC Color Bar Signal (with 1kHz Audio Signal)
reconnect to AC outlet and then turn power on.
GND
GND
GND
9-1
WF5 1DIV: 2V 20µs
Q 1531 Base
WF6 1DIV: 0.2V 20ms
IC 801 Pin 3
WF7 1DIV: 10V 20µs
Q 572 Collector
WF8 1DIV: 5V 20µs
Q 571 Base
GND
GND
L15WF