CDX-GT52UM/GT470UE/GT470UM/GT472UE/GT472UM/GT474UM/GT520U/GT525U
CDX-GT52UM/GT470UE/GT470UM/GT472UE/GT472UM/GT474UM/GT520U/GT525U
3333
4-4. SCHEMATIC DIAGRAM - MAIN Section (1/5) -
• See page 44 for IC Block Diagrams.
BOARD
(4/5)
MAIN
2
(3/5)
BOARD
MAIN
3
MAIN
(2/5)
1
BOARD
IC B/D
IC B/D
5
14.3
14.4
10.3
6
0 <3.3>
8.4
13.8
3.3
4.9
3.3
4.9
14.4
4.9
4.9
3.7
3.7
3.7
3.7
3.7
3.7
4.9
4.9
14.4
4.9
3.3
4.9
3.3
5
0
6.9
0.6
6.9
0
0
3.3
0
3.3
5
0.22
C301
47k
R312
4.7k
R314
0.22
C308
150
R307
1
C306
22
R429
R818
220k
1k
R820
47k
R313
100
R301
100
R302
J801
RKZ18B2KGP1
D806
47k
R309
47p
C326
RKZ18B2KGP1
D323
16V
47
C313
R308
0
BU_3.3V
DR_6V
BU_GND
VDD_3.3V
GN1G
D324
GN1G
D318
GN1G
D321
D306
GN1G
10V
C307
220
25V
47
C416
0
R300
R340
0
TDF8556AJ/N5
IC301
1
TAB
2
I2C_SDA
3
OUT-FL–
4
I2C_SCL
5
OUT-FL+
6
VP2
7
OUT-RL–
8
P-GND1
9
OUT-RL+
10
SVR
11
IN-RL
12
IN-FL
13
S-GND
14
IN-FR
15
IN-RR
16
BEEP
17
OUT-RR+
18
P-GND3
19
OUT-RR–
20
VP1
21
OUT-FR+
22
STB
23
OUT-FR–
24
P-GND4
25
DIAG
26
RST
27
ANT-REM
28
CRES
29
AMP-REM
30
AUDIO+B(8.5V)
31
SERVO-3.3V
32
GND
33
MECHA-6V
34
PANEL+B
35
VP
36
CBU
37
BU+B
R819
1k
RKZ7.5B2KGP1
D805
2.2
C314
1000p
C323
6.3V
C309
220
6.3V
C403
220
C399
1
0
R400
0
R396
FB398
MM1836A33NRE
IC402
1
CONT
2
GND
3
NC
4
VOUT
5
VIN
DA2J10100L
D401
FB801
FB802
FB803
JL009
JL010
16V
3300
C334
JL012
JL013
1
C305
1
C327
1
C302
1000p
R310
0.47
C315
0.47
C317
0.47
C319
0.47
C321
0.47
C331
0.47
C330
C398
0.001
0.1
C335
0.1
C407
1
C402
16V
220
C387
C401
0.1
140uH
L301
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
16P
CN301
RR+
RL+
RR–
RL–
FR+
FL+
FR–
FL–
NC
NC
NC
AMP_REM
ACC
TELL_ATT
VCC
GND
C320
10
16V
470
C411
JL014
2.2uH
L395
JL503
JL504
JL015
JL016
R306
220
R303
220
R305
220
R304
220
LTC014EUBFS8TL
Q802
LTC044EUBFS8TL
Q801
LSCR523UBFS8TL
Q301
LSCR523UBFS8TL
Q803
R323
1k
1k
R325
R324
1k
1k
R326
47pC364
47pC365
47pC366
47pC367
C303
10
C802
1000p
C801
1000p
10k
R311
10k
R378
C311
47p
47p
C358
JL505
JL506
FB306
FB314
FB891
0
R899
DR_GND
FB890
A_GND
D_GND
BEEP
STB
DIAG
I2C_SCL
I2C_SDA
RESET
ACC
RCIN1
RCIN0
XM_RX
IC301
POWER AMP, REGULATOR
MAIN BOARD (1/5)
1
2
4
6
7
8
9
3
11
13
12
14
15
16
+3.3V REGULATOR
IC402
FU1
10A
32V
(CHASSIS)
BK301
IN
REMOTE
Q801 - 803
BATTERY CHECK
R833
100k
ACCESSORY DETECT
(AEP, UK)
I
6
H
151
C
12
K
135
F
1682
B
D
G
1110
E
J
9
A
437 14
18 1917
(GT470UM: US, CND/GT520UM: E, MX, KR/GT525U)(GT52UM for Type B connector)
(GT52UM for Type A connector)
RL–
RL+
GND
GND
FL–
FL+
RL+
FL+
FR+
RR+
RR–
RR+
FR–
ILL
ACC
BATT
BATT
ACC
ILL
FR+
RL–
FL–
FR–
RR–
REM OUT
MAX 0.4A
RL–
RL+
GND
GND
FL–
FL+
RL+
ACC
ANT REM
RR+
FL+
ILL
FR+
RR–
RR+
FR–
AMP
REM
BATT
ILL
ACC
BATT
FR+
RR-
FL-
FR-
RL-
REAR RCH (+)
8
REAR RCH (–)
5
13
11
BATT
3
GND
14
REM OUT MAX0.4A
4
PW1PW1
PW1
15
FRONT RCH (–)
1
6
FRONT LCH (+)
FRONT RCH (+)
REAR LCH (+)
7
9
16
2
REAR LCH (–)
12
ACC
10
FRONT LCH (–)
8
RR+
4
FL–
10
RR–
4
FL+
11
RL+
6
6
3
12
FR-
ACC
REM OUT
6
7
5
ACC
7
GND
16
RL–
4
8
1
FR+
7
15
3
RR-
BATT
BATT
RL–
9
2
2
1
5
FL-
FL+
13
RR+
FR+
14
GND
3
5
FR-
8
2
1
AMT REM
RL+
PW1
TO
CN301
CN301
TO
TO
CN301
CN301
TO
GT470UE/GT470UM: AEP, RU, UK/GT472UE/
GT472UM/GT474UM/GT520U: AR
(Page 34)
(Page 35)
(Page
36)
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