Aiwa CA-DW735M, Service Manual

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34
Pin No. Pin Name I/O Description
RWC
P14, P15
V. INITIAL
CKSFT
HOLD
RST
XT1
XT2
VSS1
CF1
CF2
VDD1
KEY0, KEY1
MIC LEV
DOOR
P84
WRQ
DRF
MONO/ST
BEAT
T-BASS
HSP
INITIAL
TURDO
REC
RMT
PAO
S0~S10
VDD3
VSS3
S12, S13
S16~S31
V3~V1
COM0~COM3
VSS2
VDD2
FSTB
MSTB
CLK
DATA
CDSW
IC DESCRIPTION
IC, LC867120W-5E13
CD read, write control output
N. C
Volume initial output
Clock shift output
Hold input
Microprocessor reset
Connected to 32.768 kHz crystal
Connected to 32.768 kHz crystal
GND
Connected to 6 MHz ceramic lock
Connected to 6 MHz ceramic lock
Microprocessor power supply (5V)
Key A/D input
Mic level detection
CD door sw input
Bit input
CD sub code input
CD detect RF level input
FM mono stereo rejection
BEAT sift SW output
T-BASS on off SW output
High speed dubbing selector output
Initial setting data
PLL IC tuner data input
Recording SW input
Remote control input
Initial setting input
N. C
Microprocessor power supply
GND
LCD segment output
LCD segment output
N. C
LCD common output
GND
Microprocessor power supply (5 V)
Shift register clock output
Shift register data latch strobe output
PLL shift register data output
PLL shift register data output
CD SW output
O
-
O
O
I
I
I
O
-
I
O
-
I
I
I
I
I
I
I
O
O
O
O
I
I
I
I
-
-
-
O
O
-
O
-
-
O
O
O
O
O
1
2, 3
4
5
6
7
8
9
10
11
12
13
14, 15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30~40
41
42
43, 44
45~60
61~63
64~67
68
69
70
71
72
73
74