CPD-G420, CPD-G420S, CPD-G520, GDM-F520 - Sony Monitor Service Manual (repair manual). Page 12

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CR1 chassis (E)
12
No
Pin name
I/O
Level
PU/PD [kW]
Power supply
Functional description
for buffer
36
V-IN
I
TTL
5V withstand
DVDD1/DGND1
V sync signal is inputted
Schmidt
37
DGND1
-
-
digital system GND
(GND in logic system)
38
H-IN
I
TTL
5V withstand
DVDD1/DGND1
H sync signal is inputted
Schmidt
39 LOCK-DET
O
Nch Open
5V withstand
DVDD1/DGND1
Horizontal Lock detection is outputted
Drain
40
SDA
I/O
Nch Open
5V withstand
DVDD1/DGND1
Serial data of IIC bus is inputted and outputted
Drain
Schmidt
41
SCL
I
TTL
5V withstand
DVDD1/DGND1
Serial clock of IIC bus is inputted
Schmidt
42
RESET
I
TTL
5V withstand
DVDD1/DGND1
Reset is inputted
43-46 PWM0-3
O
CMOS
DVDD1/DGND1
PWM outputted
PWM 0, 1 : 9 bit     PWM 2, 3 : 8 bit
47
DVDD2
-
-
-
digital system power supply
(VDD in 1 bit DAC system)
48
GYSC
O
ANALOG
DVDD2/DGND2
Y line static convergence waveform for Green
(1 bit D/A)
49
GXSC
O
ANALOG
DVDD2/DGND2
X line static convergence waveform for Green
(1 bit D/A)
50
VDF
O
ANALOG
DVDD2/DGND2
Vertical dynamic focus waveform is outputted
(1 bit D/A)
51
VKEY
O
ANALOG
DVDD2/DGND2
NS distortion-corrected waveform is outputted
(1 bit D/A)
52
YSC
O
ANALOG
DVDD2/DGND2
Y line static convergence waveform
(1 bit D/A)
53
XSC
O
ANALOG
DVDD2/DGND2
X line static convergence waveform
(1 bit D/A)
54
HSHAPE
O
ANALOG
DVDD2/DGND2
Corrected waveform in horizontal size system is
 outputted
(1 bit D/A)
55
DGND2
-
-
digital system GND
(GND in 1 bit DAC system)
56
TEST3
I
CMOS
DVDD2/DGND2
For LSI test
57
TEST4
I
CMOS
DVDD2/DGND2
For LSI test
58
ASW1
O
CMOS
AVDD1/AGND1
Analog SW for V-SAW
59
ASW2
O
CMOS
AVDD1/AGND1
Analog SW for V-SAW
60
AGND1
-
-
Analog system GND
(GND in DAC system)
61
VSAWL
O
ANALOG
AVDD1/AGND1
V-SAW lower side is outputted
62
VSAWH
O
ANALOG
AVDD1/AGND1
V-SAW upper side is outputted
63
YDC
O
ANALOG
AVDD1/AGND1
Y line dynamic convergence waveform
(R-strings DAC)
64
DCC
O
ANALOG
AVDD1/AGND1
Center voltage of 10 bit R-String DAC is
 outputted
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