Kenwood DDX8017 Service Manual page 22

DDX8017/8027/8027Y
DDX8037/8047/8067
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
164 MD2
165 SH_RST
166 CA
167 MD3
168 MD4
169 MD5
170 Avss
171 XDATA
172 YDATA
173,174 NC
175 Avcc
176 AVss
Audio Microcomputer: 703068YGJ128A (X34: IC303)
Pin No. Pin Name
1 DC_ERR
2 LINE_MUTE
3,4 NC
5 PORTGND0
6 AUDIO_SW1_A
7 AUDIO_SW1_B
8 AUDIO_SW2_A
9 AUDIO_SW2_B
10,11 NC
12~14 NC
15 NC
16 NC
17 NC
18 EEPROM_WRT
19 MUTE_AVOUT
20 MUTE_PRE
22
Module I/O
EXTRA I Clock mode setting
V850 I
EXTRA I Hardware standby request
EXTRA I CS0 space bus width designation
EXTRA I CS0 space bus width designation
EXTRA I Endean setting
Power supply -
X35 I Touch panel input (X-direction)
X35 I Touch panel input (Y-direction)
O
Power supply - Power supply for analog
Power supply -
Module
I/O
(physical)
IC2 VI I DC offset detection
DC-CN I LINE MUTE detection
NC I
µCOM
LX/NAVI1/SW3 (or TV) /
Audio O
AVIN1 audio switching (For main)
LX/NAVI1/SW3 (or TV) /
Audio O
AVIN1 audio switching (For main)
Audio O TV/AVIN1/AVIN2 audio switching (For sub)
Audio O TV/AVIN1/AVIN2 audio switching (For sub)
O
NC O
O
O
NC O
EEPROM I Write detection at ROM correction
MUTE O MUTE for AVOUT
MUTE O MUTE for PREOUT
Application
Low level fixed
High level fixed
Low level fixed
High level fixed
Low level fixed
3.3V
Truth Value
Application
Table
q
q
w
w
Processing Operation Description
Processing Operation Description
Low at the detection
Normal: 1.6V, TEL MUTE: 1V or lower,
NAVI MUTE: 2.5V or higher
Refer to truth value table
Refer to truth value table
Refer to truth value table
Refer to truth value table
L: MUTE ON, H: MUTE OFF
When writing to E2PROM from outside,
Hi is input with a jig. (Common use SCL
and SDA will stop operation)
In other cases: Low (Pull-down)
L: MUTE ON, H: Normal
L: MUTE ON, H: Normal