DVR-640H-S
40
1
2
4
1
2
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4
C
D
F
A
B
E
3.14 WAVE FORMS
1
IC201- pin 18,C224+side
(Audio Lch) (Function:L1)
Audio Sel Output
V:1V/div. H:200usec/div
2
3
5
6
IC301, pin29(Y)
(Function L1)
Video Sel Output (Y)
V:500mV/div H:10us/div
IC501, pin32 ( C )
(Function PLAY)
Video Dri Output ( C )
V:500mv/div H:10us/div
IC501, pin24( Yp ), C519+side
(Function PLAY)
Video Dri Output (Yp)
V:500mV/div H:10us/div
IC501, pin21( Cb ), C520+side
(Function PLAY)
Video Dri Output (Cb)
V:500mV/div H:10us/div
IC501, pin18( Cr ), C521+side
(Function PLAY)
Video Dri Output (Cr)
V:500mV/div H:10us/div
CN401,pin15( Lch), C549+side
(Function PLAY)
Audio Output (Lch)
V:2.00V/div H:200us/div
IC501, pin29 ( Vcbs )
(Function PLAY)
Video Dri Output (Cvbs)
V:500mV/div H:10us/div
IC501, pin11( Yp )
(Function PLAY)
Video Dri Input (Yp)
V:500mV/div H:10us/div
IC501, pin13( Cb )
(Function PLAY)
Video Dri Input (Cb)
V:500mV/div H:10us/div
Video Dri Input (Cr)
(Function PLAY)
Video Dri Input (Cb
V:500mV/div H:10us/div
IC201 - Pin6,C216 +side
(Audio Lch) (Function:2ch)
Tuner Audio Output
V:1V/div. H:200usec/div
IC301, pin31( C )
(Function L1)
Video Sel Output ( C )
V:500ms/div H:10us/div
IC501, pin8( Y )
(Function PLAY)
Video Dri Input (Y)
V:500mV/div H:10us/div
Video Dr Input ( C )
V:500mV/div H:10us/div
(Function PLAY)
Video Dr Output ( C )
V:500mV/div, H:10us/div
(Function: 2ch)
UVIN
V:500mV/div. H:10usec/div
7
8
10
11
12
13
14
15
16
17
18
19
TUJB ASSY
A
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
Measurement Condition :
No.1, No.19 : 1kHz, 2Vrms
No.2 : 1kHz, MONO. 60% mod
No.4 - No.18 : 75% Color-bar (100 / 0 / 75 / 0)
Note : The encircled numbers denote measuring point in the schematic diagram.
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299