Kenwood KDC-C469 Service Manual page 8

KDC-C469/Y/FM/FMA
KDC-C669/Y
QQ
MICROCOMPUTER'S TERMINAL DESCRIPTION
3 7 63 1515 0
Pin No. Pin Name
11 PF3 MUTE0
12 PF2 REQC
13 PF1 REQH
14 PF0 CHCON
15 PE3 DATA IN
16 PE2 DATA OUT
17 PE1 SCK
18 PE0
19 PD3 DATA OUT
20 PD2 CLK
21 PD1 RST
22 PD0 CE
23~25 PC3~PC1
26 PC0 SEPA
27, 28 PB3, PB2
29 PB1 GAIN1
30 PB0 GAIN2
31 VDD +5V
32 PA3 DATA IN
33~35 PA2~PA0
TE
L 13942296513
36 PI31 S28
37 PI21 S27
38 PI11 S26
39 PI01 S25
40~58 S24~S6
59 ALC LOW S5
60 MUTE S4
61 SEP ATT S3
62 RELAY S2
63 P ON S1
64,65 COM2, COM1
66 REMO INT
67 HOLD
68 RES
69 AOI
70 HCTR
71 LCTR
72 SNS
73 VDD
74 FMIN
75 AMIN
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76 VSS
77 EO1
78 EO2
.
79 TEST1
80 XOUT
8
I/O Description
O
I Communication request input form CH
O Communication request output to CH
O Control output to CH
I Data input from CH
O Data output to CH
O Clock output to CH
O
O Data output to LCD
O Clock output to LCD
O Reset output to LCD
O CE output to LCD
O Separation select output
O
O GAIN1 output
O GAIN2 output
- Positive power supply connection terminal
I Data input from LCD
I
O
O
O
O
O
O
O Mute output
O Separation attenuator output
O Relay SW control
O P ON output
O
I Remote control sensor input
I Hold input
I
I
I
I
I
- Positive power supply connection terminal
I FM input
I AM input
- Ground connection terminal
x ao
y
O FM frequency control output
O
i
I Test mode terminal 1 for test mode
- Main clock resonator connection terminal
8
Not used (N.C.)
"Lo" : Communication requested
"Lo" : Communication requested
"Hi" : Operation mode, "Lo" : Standby mode
Not used (N.C.)
"Lo" : Reset
Not used (N.C.)
"Hi" : Mode 1, "Lo" : Mode 2
Not used (N.C.)
"Hi" : Level 1/3, "Lo" : Level 2/4
"Hi" : Level 3/4, "Lo" : Level 1/2
Connected to +5V lines.
Not used (connected to GND lines)
Q Q
3 6 7 1 3
Not used (N.C.)
Not used (N.C.)
Not used (N.C.)
Not used (N.C.)
Not used (N.C.)
Not used (N.C.)
"Hi" : POWER OFF mode, "Lo" : POWER ON mode
"Hi" : Mode 2, "Lo" : Mode 1
"Hi" : RF modular output, "Lo" : Vehicle antenna output
"Hi" : RF modulator circuit is active
Not used (N.C.)
"Lo" : Microprocessor stop
Not used (pull up to +5V lines)
Not used (pull down to GND lines)
Not used (pull down to GND lines)
Not used (pull down to GND lines)
Not used (pull down to GND lines)
Connected to +5V lines
Not used (pull down to GND lines)
Connected to GND lines
u163
Not used (N.C.)
.
Not used (pull down to GND lines)
2 9 9 4 2 8
Processing Operation
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9