6
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name
I/O
Purpose / Description
Processing Operation
83
/N/F-MUTE
O
Control of ON/OFF for N/F output
H : MUTE OFF L : MUTE ON
84
MUTE
O
Control of AUDIO muting
H : MUTE ON L : MUTE OFF
85
N/F SEL F/R
O
Mode change of FAD or N/F output
H : FRONT L : REAR for FAD mode output : REAR,
N/Mode output F/R)
86
SEL1
O
Audio selector control terminal (TUNER/TAPE/CD)
Control of IC381 (reference of list)
87
SEL2
O
Audio selector control terminal (TUNER/TAPE/CD)
Control of IC381 (reference of list)
88
/DIMMER
I
DIMMER function input terminal
L : Illumination ON (from DIMMER DET : Q613)
89
ACC-DET
I
ACC voltage detection input terminal
L : ACC ON (to ACC DET : Q612)
90
P-ANT
O
Control of Power-ANT output terminal
Tuner mode : H CD/CASSETTE/CD CHANGER : L
91
P-CONT
O
Control of external power AMP
H : ON (to Power control : Q606)
92
NC
O
-
Connected to GND
93
CH-REQH
O
Control of external CD Changer
REQ out put for external CD changer
94
CH-CONT
O
Control of external CD Changer
H : CD changer power ON
95
DAVSS
-
GND
Connected to GND
96
P-ON
O
Control of power supply for SW14V
H : ON (to SW14V : Q664)
97
/SW5V
O
Control of power supply for SW5V
L : ON (to SW5V : Q658)
98
3LED-ON
O
Control of power supply for 3color LED
H : ON (to LED11V : Q665)
99
MOTOR
O
Control of power supply for cassette mechanism motor
H : ON=TAPE play (to MOTOR+B : Q664)
100
DAVDD
-
Power supply input terminal
Connected to BU+5V
Audio input selector
SEL1 (86PIN)
SEL2 (87PIN)
TUNER
H
H
TAPE
L
H
CD
H
L
L
PLL Extension IC : IC151 (MAIN PWB UNIT)
Purpose / Description
Processing Operation
Request of a function IF count, and SEEK mode signal output L : Receive the radio station H : SEEK function
Change of mode for FM function (to VCC)
L : FM H : AM
L : STEREO H : Forced mode for monophonic :
9
MO/ST
O
Change of forced mode for monophonic
This pin condition is L when SEEK mode
(for STEREO indicator cut off when forced mode
for monophonic).
10
AM IFC
I
AM IF count input terminal
Into AM SEEK mode was stopped when it is
carried out with AM-SD.
8,11,12 NC
O
NC
-
DPX-3030/MP4030
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