Microcomputer's Terminal Description - Kenwood KVT-915DVD Service Manual

QQ

MICROCOMPUTER'S TERMINAL DESCRIPTION

3 7 63 1515 0
System Microprocessor : 70F3089YGJ-8R1 (X14 : IC202)
Pin No. Name
1 PH_DET
2 ILL_SEL
3 KEY1
4 AUTO_DIM
5 PORTGND0
6 SLIDE
7 NC
8 TILT
9~11 TYPE0~TYPE2
12 M_STATE
13 LED_SW
14~21 NC
22 PORTVDD0
23 NC
24 LED_MUTE
25,26 NC
27 POS_D
28 NC
TE
L 13942296513
29 POS_F
30 POS_B
31 POS_M
32 SRM_MO21
33 SRM_MO22
34 SRM_MO11
35 SRM_MO12
36 NC
37 GND0
38 CPUREG
39 VDD0
40 RESET
41 FROM_VPP
42 S_DATA / FROM_SI
43 M_DATA / FROM_SO
44 M_CLK / FROM_CLK
45 NC
46 PLL_EN
47 PLL_DATA
www
48 PLL_CLK
49 A_MUTE
50 NC
.
51 BE_AMUTE
52 VOFF_EN
53 LED_FLAS
I/O
I Slid mechanism photo sensor detect input terminal
I Illumination detect process select terminal
I Panel key (4 pcs) select & horizontal detector
I Auto dimmer detect terminal
- GND
O Test for panel mechanism for torture test (for reliability testing)
O NC
O Test for panel mechanism for torture test (for reliability testing)
I Destination setup terminal
O Test for panel mechanism for torture test (for reliability testing)
O Warning LED control terminal (H : Green (no disc), L : Red (it put in one disc))
- NC
- VDD (BU5V)
- NC
O Warning LED control terminal (L : Lighting on, H : Light off)
- NC
I Panel mechanism tilt down detect terminal
- NC
I Panel slide mechanism position detector
I Panel slide mechanism position detector
I Panel slide mechanism position detector
O Panel mechanism motor control (for tilt)
O Panel mechanism motor control (for tilt)
O Panel mechanism motor control (for slide)
O Panel mechanism motor control (for slide)
- NC
- GND
- Coupling capacitor connection terminal
- VDD (BU5V)
I Reset signal input terminal (L : Reset)
7.8V AVR input terminal (for ROM writing flash ROM microprocessor : Pull down, Mask ROM
I
microprocessor : GND)
I Data input for microprocessor (X25 unit) / writing data input for flash ROM
O Data output to microprocessor (X25 unit) / writing data output to flash ROM
I/O Clock output to microprocessor (X25 unit) / writing clock input for flash ROM
- NC
O Enable signal for graphic PLL circuit
O Data signal for graphic PLL circuit
O Clock signal for graphic PLL circuit
O Audio 5.1ch muting (H : Muting)
x ao u163
y
- NC
i
I Audio muting signal from back end unit (L: Muting)
O LCD back light ON/OFF control (L : OFF, H : ON)
O Monitor open/close key illumination blinking control (H : Lighting on, L : Light off)
2 9
8
Description / Processing Operation
Q Q
3 6 7 1 3 1 5
co
.
KVT-915DVD,925DVD,935DVD
KVT-945DVD,965DVD
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9
11