Pioneer PDP-R03U Service Manual page 126

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• Pin Function
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Pin No. Pin Name
A 3 HD1-IN
1 HD2-IN
11 HD3-IN
4 VD1-IN
2 VD2-IN
10 VD3-IN
5 ANALOG GND
6 AFC FILTER
7 HVCO
8 VCC
20 DAC1
(V. SYNC output)
B 9 DAC2
(H/C. SYNC output)
24 DAC3
12 CP-OUT
13 HD1-OUT
15 HD2-OUT
14 DIGITAL GND
16 SDA
17 SCL
18 ADDRESS SW
21 SYNC1-IN
19 SYNC2-IN
C
22 VD1-OUT
23 VD2-OUT
TE
L 13942296513
D
E
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I/O
I Input the horizontal synchronizing signal.
I It's polarity corresponds to both positive and negative.
I Input from this pin does not be synchronized internally.
I Input the horizontal vertical signal.
I It's polarity corresponds to both positive and negative.
I 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)
O DAC1 output pin. When TEST mode, VD or vertical sync signal to frequency counter
circuit is output.
O DAC2 output pin. When TEST mode, HD or composite sync signal to frequency
counter circuit is output.
O DAC3 output pin. This pin is open-collector system. When TEST mode, test pilses for
the shipping is output.
O Clamp pulse output pin. CP mode at synchronization circuit is output.
O HD output pin. This pin is open-collector system.
O 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.
I/O The SDA pin for I"C BUS.
I The SCL pin for I"C BUS.
I Slave address switch.
I Input a signal to separate sync signal.
I
O VD output pin. This pin is open-collector system.
O VD1/VD2 does not be synchronizing and they are output from this pin.
It's polarity is switched by BUS write function.
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PDP-R03U
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Pin Function
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1 5 0 5 8 2 9 9 4
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