Microcomputer's Terminal Description - Kenwood KDV-C810 Service Manual

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MICROCOMPUTER'S TERMINAL DESCRIPTION

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IC151 (MAIN UNIT : SERVO CONTROL)
Pin No. Pin Name
1 /RST0
2 /RST1
3 SPSTBY
7 MD2
9 FLCNT
10 SB
12 VSS
14-20 D0-D7
21 VCC
22-28 HA0-HA6
30 VSS
31 SWA
32 SWB
33 LOEJKEY
34 INSIDE
37 CSEL
38 SWC
TE
L 13942296513
40 /SRVDPCS
41 /ATACS
43 PCS
44 MD0
45 MD1
47 /STBY
48 /RES
49 NMI
50 VSS
51 EXTAL
52 XTAL
53 VCC
55 /RD
56 /WR
57 FEW
58 AVSS
59 FE
60 LVL
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61-64 TEST0-TEST3
65 TESTCNT
.
67 AVCC
68 /ATAINT
I/O Purpose / Description
O ATAPI I/F controller / DVD ROM decoder /reset output terminal
O CD/DVD Servo / Data processor reset output terminal
O Spindle motor driver power save output terminal
I Operation mode change input terminal
O Flash memory write-in circuit ON output terminal
O Spindle motor short brake output terminal
- GND
I/O CPU data bus terminal
- Power supply input terminal
O CPU address bus terminal
- GND
I Loading mechanism SWA input terminal
I Loading mechanism SWB input terminal
I Loading/eject key input terminal
I Pickup inside detection (SW4) input terminal
I IDE cable selection input terminal
I Loading mechanism SWC input terminal
O Servo / Data processor selection output terminal
O ATAPI I/F controller / DVD ROM decoder selection output terminal
O VRCK frequency demultiplier output terminal (RF AMP )
I Operation mode change input terminal
I Operation mode change input terminal
I CPU standby input terminal
I CPU reset input terminal
I GND
- GND
I Crystal input terminal
I Crystal input terminal
- Power supply input terminal
O Lead control terminal
O Write control terminal
I Flash memory rewriting permission input
- GND
I Focus error input terminal
I Sub beam signal input terminal
I Test mode input terminal
x ao
y
I Temperature sensor input terminal
i
- Power supply input terminal
I ATAPI I/F controller / DVD ROM decoder request signal input terminal Request signal input from 102PIN of IC250
8
Reset terminal 104PIN of IC250 (Active L)
Reset terminal 48PIN of IC201 (Active L)
VM1 (spindle motor) control
Connected to +5V
Control of Q151
VM1 (spindle motor) control
Connected to GND
IC201 and IC250 control data bus
Connected to +5V
IC201 and IC250 address bus
Connected to GND
Connected to +5V
Connected to +5V
Connected to +5V
Active L
CSEL (7PIN) control signal of IC250
Q Q
Connected to +5V
3 6 7 1 3
SDCS (44PIN) selection control signal of IC201
ATACS (98PIN) selection control signal of IC250
PSC (50PIN) control signal of IC101
Connected to +5V
Connected to GND
Connected to +5V
System reset input of IC151 (ActiveL)
Connected to GND
Connected to GND
X151 16MHz
X151 16MHz
Connected to +5V
The bus control output of IC201 and IC250
The bus control output of IC201 and IC250
-
Connected to GND
-
-
Not used for after service
u163
-
.
Connected to +5V
KDV-C810/C820/C830
/C840/C860
2 9 9 4 2 8
Processing Operation
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9
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