Kenwood KVT-910DVD Service Manual page 20

KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
MICROCOMPUTER'S TERMINAL DESCRIPTION
GSYSTEM U-COM (IC217:X14-634X-XX) uPD703035AGC-013-8EU
Pin Name
1 SYSDATA
2 SHCLK
3 PLLCE
4 PLLSDA
5 PLLSCK
6 EVdd
7 EVss
8 BEEP
9 VMUTE
10 REMO
11 DACS
12 HSYNC
13 DADO
14 DACLK
15 BRIGHT
16 KS0
17 KS1
18 IC/Vpp
19 KR0
20 KR1
21 KR2
22 KR3
23 BUS_RX
24 BUS_TX
25 BUS_STBY
26 RGBSW
27 SYNCSW
28 BUSMUTE
29 BUSGSW
30 TOUCH
31 RESET
32 XT1
33 XT2
34 REGC
35 X2
36 X1
37 Vss
38 Vdd
39 CLKOUT
40 SHRST
41 SHINI
42 SHRDY
22
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I/O Function
O Drawing micom data output terminal
O Drawing micom clock output terminal
O Chip enable output terminal for Dot clock generation
O Data output terminal for Dot clock generation
O Clock output terminal for Dot clock generation
- Connect to Vdd
- Connect to Vss
O BEEP output terminal ( PWM )
O Image MUTE output terminal
I Remote control input terminal
O DA converter chip selection output terminal
I Horizontal sync signal input terminal
O DA converter data output terminal
O DA converter clock output terminal
O BRIGHT Output terminal ( PWM )
O Key scan 0 output terminal
O Key scan 1 output terminal
- Connect to Vss
I Key return 0 input terminal
I Key return 1 input terminal
I Key return 2 input terminal
I Key return 3 input terminal
I IE-Bus data input terminal
O IE-Bus data output terminal
O BUS driver control terminal
O Image switching terminal
O Sync signal switching terminal
O BUS audio mute output terminal
O Audio switching terminal (for GND)
I Touch input detection terminal
I Rest input terminal
I Sub-clock connection
- Sub-clock connection
- Electrolytic condenser connection
- Main clock connection
I Main clock connection
- Connect to GND
- Connect to BU5V
O OPEN
O Drawing micom reset output terminal
O Drawing micom continue ON output terminal
I Drawing micom boot complete detection terminal H : Boot complete, Need pulldown resister
Description of Processing
1.5MHz
Set for 606 X
440Hz~2kHz
H : VMUTE ON
Used for BRIGHT output counter clock
Synced to SYNC_PWM and output
Hi when scanning, Refer to Key matrix sheet
Hi when scanning
When writing to flash memory, 7.8V supplied
H : Key ON
H : Key ON
H : Key ON
H : Key ON
L : Standby
H : DVD image L : TV, etc outside image
L : Other than those below.
H : MUTE ON
H : Relay ON L :Relay OFF
H : Touch ON L : Touch OFF
L : Reset
32.768kHz
1uF
12.58MHz
L : Output
L : Reset
L : Initial ON H : Continue ON