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6-10. SCHEMATIC DIAGRAM - PANEL Section -
1
2
3
PANEL BOARD
A
B
CNA451
7P
GND
7
LOAD-IN
6
LOAD-OUT
5
DRIVER
VM
4
BOARD
NC
R450
3
47k
SW OUT SIDE
2
SW CHEC
1
C
D
CNS402
21P
iPod-LCH +
1
iPod-LCH -
2
iPod-RCH +
E
3
iPod-RCH -
4
CD-LCH
5
A-GND
6
CD-RCH
7
D-GND
8
B
O-POWER
9
O-AMP-ON
10
F
MAIN
BOARD
I-TU_DO
11
(2/3)
O-FUNC-SC
12
CNS212
(Page 22)
O-FUNC-SD
13
I-P-MONI
14
I-TU_ANSD
15
O-TU_CE
16
O-TU_CK
17
O-TU_DI
18
G
M-GND
19
VSTBY
20
V6.5V
21
R665
220k
D452
MC2836
CNS481
11P
R648 10k
H
R-
1
R+
2
L-
3
L+
4
C
DGND
5
IPOD DET
6
IPJ
BOARD
IPOD TXD
7
CN953
(Page 27)
IPOD RXD
8
I
ACC CONT
9
VBUS_5V
10
PGND
11
J
K
L
IC B/D
IC401
+5V REGULATOR
IC401
TK73400AU3G0L-C
M
1
2
3
4
R621
1k
C401
1
N
C403
1
O
Note: When the DRIVER board is damaged,
exchange the entire CDM80BTS.
HCD-LX20i
• See page 17 for Waveforms. • See page 28 for IC Block Diagrams. • See page 29 for IC Pin Function Description.
4
5
6
7
8
IC B/D
IC451
IC452
+4V REGULATOR
VOLTAGE DETECTOR
IC451
D451
IC452
L660
S-80928CNMC-G8YT2G
TK11140CSCL-G
MC2836
6
4
0
5
4
5
4
1
2
3
1
2
3
6
1.3
C457
0.1
C456
C453
C454
1000p
0.22
0.01
C455
1
R502
R503
1k
R504
1k
R505 1k
R507
1k
R508
1k
R510
1k
R511
1k
R512
1k
R441
470
D453
1L4345V22DOTDT02
STANDBY
R517
1k
R664
220k
R655
0
6.8
0 (3.3)
5
4
IC422
+3.3V REGULATOR
IC422
C405
1
2
3
TK11133CSCL-G
0.1
IC B/D
0 (3.1)
0 (1.3)
C411
0.01
C406
C407
1
1
JR402
IC421
0
TK11133CSCL-G
R656
6.8
0 (3.3)
0
5
4
JR426
0
1
2
3
0 (3.1)
0 (1.3)
C409
C408
C410
0.01
5
1
1
R663
0
R402
IC421
33k
IC B/D
+3.3V REGULATOR
R404
10k
R652
0
CNS411
21P
A
CD
BOARD
CN201
(Page 19)
9
10
11
12
R654
220k
Q654
RT1N441C-TP-1
3.1
X593
RESET SWITCH
6MHz
C458
0
22
0.01
R461
10k
L590
C471
470
6.3V
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
O-USBRESET/DAB1.2V
1
3.1
2
O-POWER
3.1
3
O-AMP-ON
0 (3.1)
4
O-CD/USM 3.3V ON
3.1
O-LED
5
I-RDS DS
6
3.1
I-TU-DO
7
0
8
O-CD-LOAD OUT
C609
1000p
3.1
I-RMC
9
0
10
O-CD-LOAD IN
3.1
11
O-FUNC SC
3.1
12
O-FUNC SD
IC501
C613
18p
1
X0A
13
X513 32.768kHz
1.4
X1A
14
SYSTEM CONTROLLER
C614
22p
R514
100k
3.1
15
VCC
IC501
21
C615
MB90F830PF-GE1
L515
1
16
VSS
0
17
BUS0
1k
0
R518
BUS1
18
1k
R519
0
19
BUS2
1k
R520
0
20
BUS3
R521
1k
3.1
21
O-IPOD POWER
R522
1k
3.1
O-LED-STBY
22
1k
R523
0 (3.1)
23
O-CD-DR MUTE
1k
R524
0
24
I-CD REQ
R525
1k
0 (3)
25
O-CD BUCK
R526
1k
0 (2.9)
O-CD CCE
26
R527
220
0 (3.1)
O-CD RESET
27
28
O-USB SEL/DAB 3.3VSEL
0
29
I-USB TXD/DAB DO
0
I-USB DO
30
R530
1k
O-USB RXD
/DAB DI
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
L532
R640
C632
47k
1
R531
220
R639
10k
R431
47
R432
4.7
D454
1L0341Y23E0CA602
(LCD BACK LIGHT)
0
0.7
Q431
2SC3052F-T1-LF
LED DRIVE
C412
0.1
25
25
13
14
15
16
17
C452
IC453
1
NJL22H400B
R451
100
3.1
1
VCC
R509
1k
3.1
3
OUT
2
GND
REMOTE CONTROL RECIVER
LCD451
LIQUID CRYSTAL DISPLAY
S31
36
35
S30
34
S29
S28
33
S27
32
31
S26
30
S25
S24
29
S23
28
27
S22
26
S21
S20
25
S19
24
1.6
81
23
S18
22
S17
S16
21
1.6
SEG15
80
S15
20
1.6
SEG14
79
19
S14
1.6
SEG13
78
18
S13
1.6
SEG12
77
S12
17
1.6
SEG11
76
S11
16
1.6
SEG10
75
15
S10
1.6
SEG9
74
14
S9
1.6
SEG8
73
13
S8
1.6
SEG7
72
S7
12
1.6
SEG6
S6
71
11
1.6
SEG5
70
10
S5
1.6
SEG4
69
9
S4
1.6
SEG3
68
S3
8
1.6
SEG2
67
S2
7
VSS
66
6
S1
C665
3.1
1
VCC
65
5
S0
1.6
SEG1
64
C3
4
1.6
SEG0
63
C2
3
1.6
COM3
62
2
C1
1.6
COM2
61
1
C0
1.6
COM1
60
1.6
COM0
59
3.2
VLCD
58
0
R557
1k
O-TU-DI
57
R542
1k
0
R556
47k
O-TU-CLK
56
0
R555
1k
O-TU-CE
55
3.1
RSTX
54
3.1
C654
MD0
53
0.1
3.1
R651
1k
MD1
52
0
MD2
51
R653
1k
L565
R658
0
R637
10k
SW471
ENTER
R491
1k
R638
10k
SW481
SW491
R641
/
10k
CN499
10P
(NC)
HCD-LX20i
18
19
20
IC453
R472
R475
R471
R473
R474
1k
2.2k
2.2k
4.7k
10k
D
CNS437
2P
2
K-VOL-/VOL+
KEY-VOL
GND
BOARD
1
SW472
SW473
SW474
SW475
SW476
CNA937
PLAY MODE
SLEEP
DSGX
(Page 27)
-
+
TUNING MODE
R492
R493
R494
R495
R496
R497
2.2k
2.2k
4.7k
10k
22k
47k
E
CN383
2P
KEY-EJECT
2
K-EJECT
BOARD
1
GND
CNA938
SW493
SW495
SW496
SW497
(Page 27)
EQ
TUNE +
FUNCTION
+
SW492
SW494
TUNE -
FUNCTION
-
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