Kenwood KVT-910DVD Service Manual page 34

KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin Name
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
∅
61
62 STBY
63 RES
64 NC
65 VSS
66 EXTAL
67 XTAL
68 VCC
69 AS
70 RD
71 HWR
72 LWR
73 MD0
74 MD1
75 MD2
76 AVCC
77 VREF
78 PHOTO A
79 PHOTO B
80 HOT
81 FE
82 JITTER
83 PHOTO C
36
I/O Function
O Address bus
O Address bus
- GND terminal
I Address bus
I CXD3008Q SENS data input
I FOK input
I Pickup start limit switch position detection input
I Mechanism loading complete detection input
I Forced eject request terminal
I
I
I CXD1867R interface selection terminal
I CXD1867R monitor input (SCSY)
I EEPROM mode switching input
I Mechanism type switching input
- GND terminal
O Audio mute request output
I De-emphasis input
O DAC power ON/OFF selection output
I
I Standby input
I Reset input
I
- GND terminal
- Clock input
- Clock output (16MHz)
- Positive power supply terminal
O address strobe output
O Read output
O Write (High)
O Write (Low)
I For setting operation mode (Mode 5)
I For setting operation mode
I For setting operation mode
- A/D converter power supply terminal
- A/D converter reference voltage terminal
I Disk insert/eject sensor signal A
I Disk insert/eject sensor signal B
I High-temperature detection
I Focus error signal input
I RF jitter value input
I Disk insert/eject sensor signal C
Description of Processing
Connect to GND line
Not used (Built-in pull-up)
Hi: Focus OK
Lo: Start limit position
Lo: Loading completion
Lo: Eject
Not used (Built-in pull-up)
Not used (Built-in pull-up)
Hi: AV, Lo: ATAPI
Not used (Lo: write mode)
Hi: 12cm, Lo: 12/8cm
Connect to GND line
Hi: ON, Lo: OFF
Hi: With, Lo: Without
Not used (Hi: ON, Lo: OFF)
Not used (Pulldown to GND line)
Not used (Connect to 5V line)
Lo: Reset
Not used (Connect to 5V line)
Connect to GND line
Connect to 5V line
Not used (Pulldown to GND line)
Not used (Pulldown to GND line)
Connect to 5V line
Connect to GND line
Pull-up to 5V line
Connect to 5V line
Connect to 5V line
Hi: Disk in place
Hi: Disk in place
Hi: Disk in place