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4-4.
SCHEMATIC DIAGRAM - MAIN Section (1/5) -
1
2
3
A
(GT52UM for Type B connector)
(GT470UM: US, CND/GT520UM: E, MX, KR/GT525U)
PW1
RR+
RL+
REAR RCH (+)
RR–
RL–
REAR LCH (+)
REAR RCH (–)
FR+
FL+
REAR LCH (–)
FR–
FL–
FRONT RCH (+)
AMP
TO
CN301
FRONT LCH (+)
B
REM
FRONT RCH (–)
ILL
FRONT LCH (–)
ACC
REM OUT MAX0.4A
BATT
GND
C
ANT REM
ACC
RR+
GT470UE/GT470UM: AEP, RU, UK/GT472UE/
RR-
GT472UM/GT474UM/GT520U: AR
RL+
RL-
FR+
FR-
FL+
FL-
ILL
D
BATT
GND
(GT52UM for Type A connector)
PW1
RR+
RL+
TO
RR–
RL–
CN301
E
FR+
FL+
FR–
FL–
REM OUT
MAX 0.4A
ILL
ACC
BATT
GND
F
FR+
FR–
FL+
FL–
BATT
G
ACC
GND
ILL
RR+
RR–
RL–
RL+
H
I
J
K
CDX-GT52UM/GT470UE/GT470UM/GT472UE/GT472UM/GT474UM/GT520U/GT525U
• See page 44 for IC Block Diagrams.
4
5
6
7
MAIN BOARD (1/5)
PW1
1
2
3
4
5
6
CN301
TO
16P
CN301
RR+
1
7
8
RL+
2
RR–
3
9
10
RL–
4
FR+
5
11
12
FL+
6
FR–
7
13
14
ACC
FL–
8
AMP_REM
9
BATT
15
16
NC
10
GND
NC
11
NC
12
JL014
ACC
13
TELL_ATT
14
JL009
RL+
RL–
7
8
VCC
15
GND
16
FL+
FL–
140uH
5
6
FR+
FR-
3
4
FU1
10A
32V
RR+
RR-
1
2
JL506
BK301
JL010
JL505
JL504
PW1
TO
(CHASSIS)
CN301
RR+
RL+
1
2
RR–
RL–
3
4
FR+
FL+
5
6
FR-
FL-
7
8
REM OUT
9
10
11
12
ACC
13
14
BATT
GND
15
16
ACC
GND
7
8
AMT REM
5
6
BATT
3
4
1
2
FB803
C801
C802
1000p
1000p
Q803
J801
FB802
LSCR523UBFS8TL
REMOTE
IN
0
FB801
3.3
0
Q801 - 803
BATTERY CHECK
CDX-GT52UM/GT470UE/GT470UM/GT472UE/GT472UM/GT474UM/GT520U/GT525U
8
9
10
11
IC301
IC B/D
POWER AMP, REGULATOR
IC301
TDF8556AJ/N5
C367
47p
1
2
3
4
C366
47p
C365
47p
C364
47p
R311
R300
10k
0
JL503
R378
10k
L301
D306
GN1G
(AEP, UK)
C334
D324
D318
C335
3300
GN1G
GN1G
0.1
16V
R312
47k
C331
0.47
C330
R313
0.47
47k
R314
4.7k
0.6
Q301
LSCR523UBFS8TL
0
ACCESSORY DETECT
RESET
Q801
LTC044EUBFS8TL
D805
R819
R833
RKZ7.5B2KGP1
1k
100k
6.9
6.9
D806
RKZ18B2KGP1
R820
1k
0
Q802
LTC014EUBFS8TL
33
33
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
R305
R304
R307
C326
220
220
150
47p
R303
R340
220
0
R309
47k
IC B/D
4
5
IC402
+3.3V REGULATOR
IC402
MM1836A33NRE
R400
0
3
2
1
C401
C403
C402
C407
C411
0.1
220
1
0.1
470
6.3V
16V
R818
220k
16
17
18
19
26
27
28
29
30
31
32
33
34
35
36
37
D401
DA2J10100L
R429
22
C311
C416
47p
47
25V
C301
0.22
C387
220
1
16V
2
C306
C307
C323
1
220
1000p
10V
3
C309
C313
R396
220
47
0
6.3V
16V
4
1
MAIN
BOARD
(2/5)
(Page 34)
6
7
8
9
R899
0
DR_GND
FB890
A_GND
FB891
D_GND
BU_GND
BOARD
VDD_3.3V
BU_3.3V
(Page
DR_6V
16
14
3
11
12
MAIN
BOARD
(3/5)
13
(Page 35)
15
2
MAIN
(4/5)
36)
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