PZ-43MR2E (serv.man8). Description of major functions - Sharp TV Service Manual (repair manual). Page 17

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HD1-IN
HD2-IN
HD3-IN
VD1-IN
VD2-IN
VD3-IN
ANALOG GND
AFC FILTER

HVCO
VCC
DAC1
(V. SYNC output)
DAC2
(H/C. SYNC output)
DAC3

CP-OUT
HD1-OUT
HD2-OUT

DIGITAL GND
SDA
SCL
ADDRESS SW
SYNC1-IN
SYNC2-IN
VD1-OUT
VD2-OUT

I
I
I
I
I
I

—
—

—
—

O

O

O

O
O
O

—

I/O

I
I
I
I

O
O

Input the horizontal synchronizing signal.
It’s polarity corresponds to both positive and negative.
Input from this pin does not be synchronized internally.
Input the horizontal vertical signal.
It’s polarity corresponds to both positive and negative.
Input from this pin does not be synchronized internally.
The GND pin for analog circuit block.
Connect the filter for horizontal AFC. The  frequency of the horizontal output is varied
by the volyage at this pin.
Connect the ceramic oscillator for horizontal oscillator.
The VCC pin. (9.0V)
DAC1 output pin. When TEST mode, VD or vertical sync signal to frequency counter
circuit is output.
DAC2 output pin. When TEST mode, HD or composite sync signal to frequency
counter circuit is output.
DAC3 output pin. This pin is open-collector system. When TEST mode, test pilses for
the shipping is output.
Clamp pulse output pin. CP mode at synchronization circuit is output.
HD output pin. This pin is open-collector system.
HD1/HD2 does not be synchronizing and they are output from this pin.
It’s polarity is switched by BUS write function.
The GND pin for logic circuit block.
The SDA pin for I2C BUS.
The SCL pin for I2C BUS.
Slave address switch.
Input a signal to separate sync signal.

VD output pin. This pin is open-collector system.
VD1/VD2 does not be synchronizing and they are output from this pin.
It’s polarity is switched by BUS write function.