PZ-43MR2E (serv.man8). Description of major functions - Sharp TV Service Manual (repair manual). Page 12

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CVBS1/Y1-IN
SYNC-IN
CVBS-OUT
VS
COMB Y-IN
D-VDD
COMB C-IN
D-GND
HS
SCP
Yvi-IN
SYNC-VCC
SCL
SDA
YS3
(RGB1-in)
SYNC-GND
Cr1-IN
Cb1-IN
Y1-IN
CLP-FIL
Y-OUT
Cb-OUT
Cr-OUT
YS1
(YVbC2-IN)
B1-IN
G1-IN
R1-IN
Y/C-GND
Cr2-IN
Cb2-IN
Y2-IN
Y/C-VCC
B2-IN
G2-IN
R2-IN
YS2/YM
(RGB2-IN)
FIL.
X’TAL
C3-IN
APC-FIL
CVBS3/Y3-IN
ADDRESS
C2-IN
CVBS2/Y2-IN
COMB SYS
Fsc-OUT
AFC-FIL
C1-IN

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I
O
O
I
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I
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O
O
O
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I
I/O
I

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I
I
I
—
O
O
O
I

I
I
I
—
I
I
I
—
I
I
I
I

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I
I
I
O
O
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I

CVBS1 or Y1-IN signal input.
Sync signal input.
CVBS or Y+C signal output terminal.
Counted-down vertical sync signal output.
Input of Y signal coming from comb filter. Open when not used.
DDS/BUS/V-CD/H-CD block power supply. DC5V (standard).
Input of C signal coming from comb filter. Open when not used.
DDS/BUS/V-CD/H-CD block grounding terminal.
H-AFC-processed horizontal sync signal output.
Sand Castle Pulse output. Clamping pulse and horizontal blanking pulse outputs.
Output of sync input Y signal selected with Video-SW.
SYNC/HVCO block power supply. DC5V (standard).
I2C BUS SCL terminal.
I2C BUS SDA terminal.
Selector switch for main signal and RGB1 input signal. YS3 input effective only when
“RGB1-ENB” is set at “enable” in bus setting.
SYNC/HVCO block grounding terminal.
Y1/Cb1/Cr1 signal input.

Y clamp filter to be connected.
Y/Cb/Cr signal output.

Selector switch for main signal and Y/Cr/Cb2  input signal.

RGB1 signal input. This input is selected at YS3 or I2C BUS.

Y/C/Text/Video-SW/1HDL block grounding terminal.
Y2/Cb2/Cr2 signal input. This input is selected at YS1.
Open when not used.

Y/C/Text/Video-SW/1HDL block power supply. DC5V (standard)
RGB2 signal input. This input is selected at YS2.
Open when not used.

Selector switch for main signal and RGB2  input signal.

Connected to Y/C-VCC terminal.
16.2MHz crystal oscillator to be connected.
Chroma signal input. Open when not used.
Chroma demodulation filter to be connected.
CVBS3 or Y3 signal input. Open when not used.
Slave address to be preset.
Chroma signal input. Open when not used.
CVBS2 or Y2 signal input. Open when not used.
Received color system judgment result to be output from this pin and pin 46.
Subcarrier output.
AFC detection filter to be connected.
Chroma signal input. Open when not used.