Microcomputer's Terminal Description - Kenwood KVT-627DVDY Service Manual

KVT-627DVD/627DVDY/717DVD
KVT-737DVD/747DVD/767DVD
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MICROCOMPUTER'S TERMINAL DESCRIPTION

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System Microcomputer: 703265YGJ501A (X14: IC204)
Pin No. Pin Name
1 AVREF0
2 AVSS
3,4 NC
5 AVREF1
6 V_MUTE
7 HD
7 NC
8 FLMD0
9 VDD
10 REGC
11 VSS
12 X1
13 X2
14 RESET
15 XT1
16 XT2
TE
17 NC
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18 VD
18 NC
19 BU_DET
20 DISK_DET
21 ACC_DET
22 MINI_SDATA
23 NC
24 MINI_CLKIN
25 BE_MDATA
26 BE_SDATA
27 BE_CLK
28 BE_MREQ
29 BE_SREQ
30 REMO
31 S_MUTE
32 NC
33 EVSS
34 EVDD
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35 SDA/E2P_SDA
35 SDA/ROM_COR_SDA
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35 SDA/CHROMA_SDA_SDA
36 SCL/E2P_SCL
36 SCL/ROM_COR_SCL
14
Module (physical) I/O
VIDEO O Video mute
VIDEO I Graphic
O OSD
µCOM
I
4.953MHz
µCOM
I
32.768kHz
VIDEO I (Graphic)
O OSD
Power supply I Back up detection
DVD_MECHA I Disk detection
Power supply I ACC detection
PANEL I Data input from mini liquid crystal
O
PANEL I Communication clock with mini liquid crystal
B/E O Data output to B/E-IC
B/E I Data input from B/E-IC
B/E I Communication clock with B/E-IC
B/E O Request to B/E-IC
B/E I Request from B/E-IC
PANEL I Remote controller
VIDEO O Composite signal mute
µCOM
I/O Access with E2P
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µCOM
I/O Access with E2P at coping with ROM correction
i
Chroma γ Access with chroma γ IC
I/O
µCOM
I/O Access with E2P
µCOM
I/O Access with E2P at coping with ROM correction
2 9
8
Application
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9 4 2 8
Processing Operation Description
H: MUTE ON
0 5 8 2 9 9 4 2 8
H: Reduced electric power detection
L: Disc IN
H: ACC reduced electric power detection
L: FULL GRAPHIC (OSD), H: OTHER
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9 9
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