Aiwa CA-DW735M Service Manual page 24

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

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