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Microcomputer's Terminal Description - Kenwood KTC-SR901 Service Manual

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KTC-SR901
QQ
3 7 63 1515 0

MICROCOMPUTER'S TERMINAL DESCRIPTION

X14-6900-10
Pin No.
I/O
Pin name
1
O
DATAH2
2
O
HCLK2
3-5
O
NC
6
-
EVDD
7
-
EVSS
8, 9
O
NC
10
O
MUTE1
11
O
REQC1
12
I
MDI
13
O
MDO
14
O
SCK
15
O
REQH2
16
O
CHCON2
17
O
A_MUTE
18
I
IC/VPP
19
O
RELAY
20
O
NC
21
O
PON_M
22
O
PON_A
23, 24
O
NC
25
O
DAP_RST
TE
26
O
SSN
L 13942296513
27-30
O
NC
31
I
RESET
32
I
NC
33, 34
-
NC
35
-
X2
36
I
X1
37
-
VSS
38
-
VDD
39-54
O
NC
55
-
BVDD
56
-
BVSS
57-70
O
NC
71
-
AVDD
72
-
AVSS
73
I
AVREF
74
I
ANTENNNA
75
I
TA_MODE
76-85
I
NC
86
O
NC
87
I
BUP
88
I
REQH1
89
I
CHCON1/STBY
90
I
REQC2
www
91
O
NC
92
I
SSR_BU
93-96
O
NC
.
97
I
DATAH1
98
O
DATAC1
99
I
HCLK1
100
I
DATAC2
4
Description
5L I/F to CD_CH
5L I/F to CD_CH
Not connect
Power supply for port
Ground for port
Not connect
5L I/F to H/U
5L I/F to H/U
Data input from IC9 (via IC30)
Data output to IC9 (via IC30)
Data clock output to IC9 (via IC30)
5L I/F to CD_CH
5L I/F to CD_CH
Audio mute output
For write program enable
Audio source selection
Not connect
Output for power on main
Output for power on audio
Not connect
IC9 reset output
Enable signal output to IC9 (via IC30)
Not connect
Not connect
Not connect
Crystal for main clock
Crystal for main clock
Ground
Power supply
Not connect
Power supply for BUS interface
Ground for BUS interface
Not connect
Analog power supply
Analog ground
Analog reference voltage
Connected to antennna detection signal
Test mode
Not connect
Not connect
Back-up voltage detect
5L I/F from H/U
5L I/F from H/U
5L I/F from CD_CH
Not connect
Back-up voltage detect
x
ao
u163
y
Not connect
i
5L I/F from H/U
5L I/F to H/U
5L I/F from H/U
5L I/F from CD_CH
2 9
8
Q Q
3
6 7
1 3
1 5
co
.
9 4
2 8
Processing Operation
H ; Normal (off) / L ; Mute on
H ; Write mode / L ; Normal
H ; CD-CH / L ; Sirius
H ; Power on / L ; Power off
H ; Power on / L ; Power off
H ; Normal (off) / L ; Reset
0 5
8
2 9
9 4
2 8
H ; Normal (off) / L ; Reset
H ; Normal (detect) / L ; Not detect
H ; Test mode / L ; Nomal mode
H ; Not detect / L ; Detect (normal)
m
H ; Detect (normal) / L ; Not detect
9 9
9 9

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