Pioneer DVD-102 Service Manual page 25

7 µPD72152GD (IC700: MAIN BOARD ASSY)
• CD-ROM and DVD ROM Controller
• Block Diagram
• Pin Function
No. Name I/O
1 GND – Digital GND
2 IORDY O I/O Channel ready signal output
3 DIOR I Read control signal input
4 VDD – +5V Digital Power Supply
5 DIOW I Write control signal input
6 HDMARQ O I/O DMA request signal output (3 states)
7 HDD15
I/O IDE data bus signal input/output terminal
8 HDD0
9 VDD – +5V Digital Power Supply
10 HDD14
11 HDD1
12 HDD13 I/O IDE data bus signal input/output terminal
13 HDD2
14 HDD12
Description No. Name I/O
15 GND – Digital GND
16 HDD3
17 HDD11
18 HDD4 I/O IDE data bus signal input/output terminal
19 HDD10
20 HDD5
21 VDD – +5V Digital Power Supply
22 HDD9
23 HDD6 I/O IDE data bus signal input/output terminal
24 HDD8
25 GND – Digital GND
26 HDD7 I/O IDE data bus signal input/output terminal
27 HRESET I Reset input signal (3 states)
28 GND – Digital GND
DVD-102, DVD-A02
Description
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