Read Harman Kardon TU 970II Service Manual online
IC71 FUNCTION (MI-COM S3F84BB)
Pin No.
PIN NAME
I/O
DESCRIPTION
1~8
FIP-DA
O
FIP Data output port
9
N.C
-
Non connection
10
SINO
I
UART Data input port
11
SOTO
O
UART Data output port
12
VDD1
I
Power supply port(+5V)
13
VSS1
I
GND
14
XTOUT
O
10MHz crystal connection port
15
XIN
I
16
TEST
I
Back-up Input
17,18
N.C
-
Non connection
19
RESET
I
Reset input port("L")
20
N.C
-
Non connection
21
DAB_DIN
I
DAB Data input port
22
DAB_DOUT
O
DAB Data output port
23
DAB_CLK
O
DAB Clock control port("L")
24
FM/AM_MUTE
O
FM/AM MUTE control port("L")
25
PLL_DATA
O
PLL Data output port
26
PLL_CE
O
PLL Enable control port
27
PLL_CLK
O
PLL Clock control port
28
STEREO
I
Tuner module stereo control port
29
TUNED
I
Tuner module tuned control port
30
PLL_DIN
I
PLL Data input port
31
RDS_CLK
O
RDS Clock control port
32
RDS_DATA
I
RDS Data input port
33
BACK_UP
I
BACK-UP mode control port("L")
34
REMOTE_IN
I
Remote unit data input port
35~38
N.C
-
Non connection
39,40
GND
I
GND
41
SCROLL_UP
I
Scroll up control port
42
SCROLL_DN
I
Scroll down control port
43
VREF
I
A/D converter reference voltage
44
AVSS
I
GND
45
GND
I
46
KEY3
I
47
KEY2
I
48
KEY1
I
KEY 1 control port
49~51
N.C
-
Non connection
52
VSS2
I
GND
53
VDD2
I
Power supply port(+5V)
54
SYSTEM_MUTE
O
System MUTE control port("L")
55
STAND_BY
O
Standby on control port("L")
56
FM/AM_ON
O
FM/AM on control port("L")
57
N.C
-
Non connection
58
POWER_ON
O
Unit turn on control port("L")
59~64
N.C
-
Non connection
65~68
OPTION
I
GND or OPEN
69~70
N.C
-
Non connection
71
OPTION
I
GND or OPEN
72~74
N.C
-
Non connection
75
OPTION
I
GND or OPEN
76~77
N.C
-
Non connection
78
RS_P
O
Register selection port
79
WRITE
O
Write enable port
80
READ
O
Read enable port
harman/kardon
TU 970II/230 Service Manual
Page 15 of 21
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