Kenwood KNA-DV2200 Service Manual page 13

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
17 B REQ
18 LDON
19 HOLD
20 LOAD
21 UNLOAD
22 VSS
23 SDEN
24 SCLK
25 SDATA
26 PH ON
27 D8
28 D9
29 D10
30 D11
31 D12
32 D13
33 D14
34 D15
35 VCC
36 A0
37 A1
38 A2
39 A3
40 A4
41 A5
42 A6
43 A7
44 VSS
45 A8
46 SENS
47 FOK
48 SLIM SW
49 DOWN SW
50 EJECT
51 PONREQ
52 NC
53 IFSEL
54 MNT2
55 E2 SEL
56 TEST (TYPE)
57 VSS
58 AMUTE
59 DEEMPH
60 PD
I/O Description
I Local I/F interrupt input
O High-frequency redundancy control output
O Focus servo forced defect output
O Load motor control output
O Eject motor control output
- GND connection terminal
O SP3721A chip enable output
O SP3721A serial clock output
I/O SP3721A serial data input/output
O Photo sensor power supply ON/OFF output
I/O Data bus
I/O Data bus
I/O Data bus
I/O Data bus
I/O Data bus
I/O Data bus
I/O Data bus
I/O Data bus
- Positive power supply connection terminal
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
- GND connection terminal
I Address bus
I CXD3008Q SENS data input
I FOK input
I Pickup most inner position detection input
I Mechanism loading completion detection input
I Forced eject request input
I
I
I CXD1867R interface selection input
I CXD1867R monitor input (SCSY)
I EEPROM mode selection input
I Mechanism type selection input
- GND connection terminal
O Audio mute request output
I De-emphasis input
O DAC power ON/OFF selection input
KNA-DV2200
Processing Operation
Hi→Lo : Interrupt request
Hi : Redundancy ON, Lo : Redundancy OFF
Hi : Hold
Hi : ON, Lo : OFF
Hi : ON, Lo : OFF
Connected to GND lines.
Hi : Enable
Hi : ON, Lo : OFF
Connected up to 5V lines.
Connected to GND lines.
Not used (built-in pull up to VCC)
Hi : Focus OK
Lo : Pickup most inner position
Lo : Loading completed
Lo : Eject
Not used (built-in pull up to VCC)
Not used (built-in pull up to VCC)
Hi : AV, Lo : ATAPI
Not used (Lo : Writing mode)
Hi : 12cm, Lo : 12/8cm
Connected to GND lines.
Hi : Mute request
Hi : De-emphasis ON
Not used (Hi : ON, Lo : OFF)
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