58
DEH-P400,P4000,P4050
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
*PD4989A
Pin No.
Pin Name
I/O
Function and Operation
64
clamp
I
CD disc clamp sense input
65
xsck
O
CD LSI clock output
66
XSI
I
CD LSI data input
67
XSO
O
CD LSI data output
68
XA0
O
CD LSI command/data control output
69
xrst
O
CD LSI reset output
70
xstb
O
CD LSI strobe output
71
VCAOUT
O
Sub woofer electronic volume control output
72
SUBMUT
O
Sub woofer mute output
73
TEST
I
Test terminal
74
SL
I
Tuner signal level input
75
MODEL1
I
Model select input
76,77
NC
Not used
78
EJTSNS
I
CD disc EJECT position detect
79
DSCSNS
I
CD disc detect input
80
VDSENS
I
CD VD over voltage / short-circuit sense input
81
TEMP
I
CD temperature sense input (CD)
82
(VDD)
A/D converter power supply terminal
83
(VDD)
A/D converter reference voltage terminal
84
(GND)
A/D converter GND
85
RX
I
IP BUS data input
86
TX
O
IP BUS data output
87
GND
GND
88
ldet
I
RDS PLL lock sense input
89–91
NC
Not used
92
asens
I
ACC power sense input
93
bsens
I
Back up power sense input
94
TUNPDI
I
PLL IC data input
95
KEYDT
I
Key data input
96
DPDT
O
Display data output
97
TUNPCK
O
PLL IC clock output
98
TUNPDO
O
PLL IC data output
99
TUNPCE
O
PLL IC chip enable
100
PEE
O
Beep tone output
30
31
51
80
81
100
1
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