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11.1. Main Block
Ref
.
No.
Part No.
Part Name & Description
Remarks
IC401 UPD780058522
I/O
Vol.(V)
1
INIT C
Specification setup
I
4.87
2
NC
No connection
O
0
3
NC
No connection
O
0
4
AVSS
Ground
_
0
5
AF MUTE
AF mute output
O
4.92
6
NC
No connection
O
0
7
AV REF
+5V power supply
_
4.92
8
MODE1
MODE1
I
0
9
MODE2
MODE2
I
0
10
MODE3
MODE3
I
0
11
CD.C.DATA
CD changer data
SI
0
12
NC
No connection
SO
0
13
CD.C.CLK
CD changer clock
SCK I
0
14
REM OUT
Remocon data output
O
4.92
15
PLL CE
PLL chip enable
O
0
16
PLL DO(MI)
PLL data
SI
4.99
17
PLL DI(MO)
PLL data
SO
0
18
PLL CLK
PLL clock
SCK O
4.93
19
NC
No connection
O
0
20
NC
No connection
O
0.39
21
MMT F
MMT F
O
0.55
22
SMT F
SMT F
O
0.61
23
DOLBY
DOLBY
O
0.09
24
F/R
FF/REW detection
I
0.46
25
A/B
A/B detection
I
0.42
26
MS GAIN
MS gain
O
0.03
27
MTL
MTL output
O
0
28
SMT R
SMT R
O
0
29
R REEL
R REEL
O
0
30
MS IN
MS detection
I
0
31
F REEL
F REEL
O
0
32
TAPE IN
TAPE IN detection
I
1.42
33
VSS 1
VSS 1
_
0
34
NC
No connection
O
4.98
35
ST
FM stereo detection
I
4.97
36
E VOL CLK
Electronic volume clock
O
4.99
37
E VOL DATA
Electronic volume data
I/O
4.99
38
SECURITY LED
Security LED
O
0
39
NC
No connection
O
0
40
NC
No connection
O
0
41
LCD DI(MO)
LCD driver data output
O
4.7
42
LCD DO(MI)
LCD driver data input
I
4.37
43
LCD CLK
LCD clock
O
4.84
44
LCD CE
LCD chip enable
O
0.26
45
POWER LED
Power LED
O
0.06
46
NC
No connection
O
0
47
MUTE
Mute output
O
0
48
NC
No connection
O
0
49
NC
No connection
O
0
50
NC
No connection
O
0
51
NC
No connection
O
0
52
NC
No connection
O
0
53
NC
No connection
O
0
54
NC
No connection
O
0
55
PANEL
Panel in detection
I
4.41
56
SYS CNT
System CNT
O
4.94
57
POWER CNT
System power control
O
4.91
58
ACC SENS
ACC leaver detection
I
4.98
59
NC/RDS DATA
No
connection/RDS
data
input
O/I
2.47
60
RESET
Reset input
I
4.97
61
REM IN
Remocon data input
I
5.5
62
BATT SENS
Battery level detection
I
4.98
63
NC/RDS CLK
No
connection/RDS
clock
input
O/I
2.48
Ref
.
No.
Part No.
Part Name & Description
Remarks
64
CD C STB
CD changer strobe
I
0
65
MODE A
Rotary mode A
I
4.8
66
MODE B
Rotary mode B
I
0
67
VSS0
Ground
_
0
68
VDD1
+5V power supply
_
4.95
69
X2
Crystal oscillator
O
0
70
X1
Crystal oscillator
I
0
71
VPP
VPP
I
0
72
NC
No connection
O
0
73
NC
No connection
I
4.92
74
AVD0
+5V power supply
_
4.95
75
AV REF
A/D
Convetor
standard
volt
_
4.95
76
AM SD
AM BAND SD input
I
0.47
77
FM SD
fM BAND SD input
I
0.46
78
INIT D
Specification setup
I
0
79
INIT A
Specification setup
I
0
80
INIT B
Specification setup
I
4.93
11.2. Display Block
Ref.
No.
Part No.
Description
I/O
Vol.(V)
IC901 YEAMLC75854W
1~34
SEG1~34
LCD segment
O
2.5
35~3
9
9
NC
No connection
_
_
40~4
3
3
COM1~4
LCD common
O
2.5
44~4
9
9
KS1~6
Key data output
O
0.9
50~5
4
4
K11~5
Key data input
I
0.0
55
TEST
(Connecting to ground)
_
0.0
56
VDD
+5V power supply
_
5.1
57
VDD1
Ground
through
capacitor
_
3.3
58
VDD2
Ground
through
capacitor
_
1.7
59
Vss
Ground
_
0.0
60
OSC
CR oscillator
_
3.9
61
DO
Key data output
O
4.4
62
CE
Chip enable
I
0.0
63
CLK
LCD clock
I
0.0
64
D1
LCD data input
I
0.0
12 PACKAGE AND IC
BLOCK DIAGRAM
11 TERMINALS DESCRIPTION
12
CQ-RD143N
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