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L15DWF
9-2
1DIV: 1V 500ns
WF13
GND
GND
GND
GND
GND
GND
1DIV: 1V 20ms
1DIV: 1V 500
µ
s
1DIV: 1V 50
µ
s
1DIV: 1V 50
µ
s
WF14
WF15
WF16
GND
Input:
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%)
WF18
WF17
WF21
GND
GND
WF19
WF20
WF1 ~ WF21 =
Waveforms to be observed at
Waveform check points.
(Shown in Schematic Diagram.)
Pin 2 of CN901
Pin 7 of CN901
Pin 15 of CN902
1DIV: 1V 50
µ
s
Pin 20 of CN902
1DIV: 1V 20ms
Pin 8 of CN901
Pin 18 of CN902
Pin 19 of CN902
1DIV: 1V 20ms
Pin 10 of CN901
1DIV: 1V 20ms
Pin 9 of CN901
Содержание EWFG2705
Страница 1: ...SERVICE MANUAL 27 ANALOG DIGITAL COLOR TELEVISION EWFG2705 ...
Страница 40: ...8 9 Digital 2 3 Schematic Diagram L3821SCD2 DIGITAL 2 3 Ref No Position IC253 K 1 Q281 Q 4 IC TRANSISTOR ...
Страница 50: ...12 2 L3821PEX Packing S 7 S 5 S 1 Tape X 5 X 2 X 1 FRONT X 3 S 2 S 3 S 6 S 4 Packing tape ...
Страница 59: ...EWFG2705 L3821UB 2005 07 27 ...