DOWNLOAD Sony CDX-GT540UI / CDX-GT547UI Service Manual ↓ Size: 1.83 MB | Pages: 36 in PDF or view online for FREE

Model
CDX-GT540UI CDX-GT547UI
Pages
36
Size
1.83 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-gt540ui-cdx-gt547ui.pdf
Date

Sony CDX-GT540UI / CDX-GT547UI Service Manual ▷ View online

CDX-GT540UI/GT547UI
CDX-GT540UI/GT547UI
17
17
4-4.  SCHEMATIC  DIAGRAM  – MAIN Section (1/3) –
• See page 22 for IC Block Diagrams. 
C
8
6
G
7
H
13
11
10
12
E
B
5
1
4
I
2
F
9
J
A
14
D
3
BOARD
(3/3)
MAIN
2
1
MAIN BOARD 
(2/3)
IC B/D
IC B/D
14.4
6.4
0
0
2.7
6.4
0.6
0.6
0
0
3.1
7.1
3.1
7.1
14.4
7.1
7.1
8.2
7.6
7.6
7.6
7.6
8
7.1
7.1
14.4
7.1
3.3
7.1
3.3
13.7
13.7
8.6
0<3.3>
6.2
10.6
14.4
14
5.1
3.3
0
3.3
13.9
0
13.6
0
3.3
3.3
3.3
5.1
1.3
4.8
*
1
*
1
   (GT547UI)
   (GT540UI)
GT540UI
IC301
IC403
IC402
MAZ8180GMLS0
D807
1k
R816
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CN802
16P
FL+
RL+
RR+
FR+
AMP-REM
ANT-REM
ACC
GND
FL-
RL-
RR-
FR-
TEL-ATT
ILL
TEST
+B
+B
+B
+B
C311
0.01
L801
0.22
C811
1
C1
15
1
C215
0.22
C305
1
C210
0.22
C405
0.22
C810
1
C1
14
1
C214
0.22
C304
0.01
C308
1
C109
1
C1
10
1
C209
100k
R401
0.01
C407
2.2uH
L301
4.7k
R823
RT1P141C-TP-1
Q304
RT1N141C-TP-1
Q303
S401
47k
R306
47p
C314
150
R308
10V
C409
1000
RT1P141C-TP-1
Q305
CD MUTE
16V
47
C322
25V
22
C303
C116
100p
C111
100p
C216
100p
C211
100p
2.2
C315
R830
0
16V
47
C433
1
C306
16V
47
C307
0
R825
10V
330
C411
16V
10
C312
16V
10
C313
16V
10
C309
6.3V
330
C403
MA2J1110GLS0
D308
MA2J1110GLS0
D309
MA2J1110GLS0
D306
5
4
3
2
1
TK11133CSCL-G
IC402
+3.3V REG
CONT
GND
NOISE
VOUT
VIN
10k
R832
C815
1000p
0.22
C404
0.1
C402
4
3
2
1
PST8228UL
IC403
RESET
0.01
C401
J801
0.01
C406
22
R313
1A4-A2
D104
1A4-A2
D105
1A4-A2
D204
1A4-A2
D205
1A4-A2
D302
1A4-A2
D303
1A4-A2
D304
1A4-A2
D305
2SC3052EF-T1-LEF
Q808
R824
1k
RT1N141C-TP-1
Q802
RT1N141C-TP-1
Q807
R826
0
R827
220k
R801
0
D806
MAZ8075GMLS0
R815
1k
R802
0
1A4-A2
D813
IC301
1
TA
B
2
SDA
3
OUT
-FL-
4
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
31
SER
VO+3.3V
32
GND
33
MECHA+6V
34
PA
N
EL
+B
35
VP
36
CBU
37
BU+B
0.22
C808
1000p
C806
MAZ8180GMLS0
D808
R822
47k
47k
R819
MAZ8180GMLS0
D809
MAZ8180GMLS0
D81
1
2SC3052EF-T1-LEF
Q806
TEL-ATT DETECT
R821
10k
R820
10k
1N5404-C31
1-3
D812
0.47
C803
47k
R817
2SC3052EF-T1-LEF
Q805
ACC DETECT
4.7k
R818
1000p
C805
16V
3300
C807
C804
0.47
MAZ8180GMLS0
D810
1
2
3
4
5
7
8
9
10
11
12
13
14
15
16
17
18
6
BUS1
25
26
27
28
29
30
31
32
33
BUS2
220
JC1
12
220
JC1
11
TEL
I2C_SIO
I2C_SCK
AT
T
ACC
RC1
RC0
MAIN BOARD (1/3)
9
4
6
ANT REM
12
RR–
FR–
4
ACC
RL+
13
RL+
3
FR–
ACC
RR+
16
14
6
15
BATT
AMP REM
4
ATT
RL–
1
10
GND
RR–
BATT
8
1
5
7
GND
8
6
ANT REM
FR+
2
8
FR+
RL–
FL–
3
FL+
2
3
2
11
5
7
5
RR+
FL+
FL–
7
1
FU601
10A
Q802,807,808
BACK-UP CHECK
(REMOTE IN)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
Q303,304
MUTE DRIVE
NC 
VSS
VIN
VOUT
RESET
IC301
TDA8588AJ/N2/R1
TDA8588AJ/N2/R1/M5
(Page 19)
(Page 18)
CDX-GT540UI/GT547UI
CDX-GT540UI/GT547UI
18
18
4-5.  SCHEMATIC  DIAGRAM  – MAIN Section (2/3) –
• See page 15 for waveforms.   • See page 22 for IC Block Diagrams.   • See page 25 for IC Pin Function Description.
A
J
C
14
3
9
K
F
8
13
6
10
H
15
7
D
11
E
B
12
16
5
G
I
4
1
2
1
MAIN BOARD 
(1/3)
MAIN
BOARD
3
(3/3)
1
2
BOARD
MAIN
4
(3/3)
IC B/D
IC B/D
IC B/D
3.2
0
14.4
14.4
7
14.4
0
3.3
14.4
3.3
12.8
3.3
14.4
14.4
12.8
0.5
3.8
1.2
0.7
0
1.3
3.3
3.3
2.6
0.9
5.6
3.3
5.1
1.3
0
0
3
0.1
0
3
0
3.3
3.3
3.3
0
0
3.3
3.3
3.3
3.3
0
0
3.3
3.2
3.3
0
3
0
3.3
0
3
0
3.2
3.1
0.2
3.3
3.3
3.3
3.3
3.3
3.3
0
0.5
3
3.3
0
3.3
0
0
3
3
0
3.3
3.3
1.1
1.5
3.3
1.9
0
3.3
3.1
3.1
3
3.3
3.3
0
3.2
0
0
2.7
0
3.3
1.9
1.2
3
0
0
1.6
3.3
*
1
   (GT547UI)
*
2
   (GT540UI)
*
2
*
2
*
1
*
1
GT547UI
GT540UI
MAIN BOARD (2/3)
IC401
IC503
IC501
IC502
0.1
C517
16V
120
C502
8
7
6
5
4
3
2
1
TC7WH123FU(TE12R)
IC502
DC/DC CONVERTER CONTROL
A
B
CLR
GND
Q
CX
RX/CX
VCC
8
7
6
5
4
3
2
1
TPS40200DRG4
IC501
RC
SS
COMP
FB
GND
DR
V
ISNS
VCC
0.5%
100k
R516
RT1N141C-TP-1
Q501
USB POWER CONTROL
MA24D5000BS0
D504
15p
C509
1k
R519
1.5k
R511
1
C503
100k
R510
0.1
C504
330k
R514
0.1
C501
1k
R505
470p
C505
MAZ8120GMLS0
D503
68k
R504
470p
C506
1
C507
10k
R513
56k
R502
1500p
C508
470p
C515
56k
R501
0.5%
22k
R517
R717
0
100k
R710
16V
22
C702
0.01
C707
100
R707
0.01
C705
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
28P
CN701
NCO
NCO
SYS_RST
BU_3.3V
BU_GND
NCO
VBUS_ON
Z-MUTE
Z/Y_CHECK
D_GND
TXD(MC_BUS)
RXD(MC_BUS)
AUDIO_8.5V
USB_GND
DR_6V
DR_GND
CD_ON
CDM_ON
A_ATT
AU_LCH
AU_GND
AU_RCH
A_GND
A_3.3V
EJECT_OK
OPEN_REQ
BU_CHECK
WAKE_UP
100
R709
2A
F501
100k
R419
10k
R421
10k
R424
0.01
C417
0.01
C418
32.768kHz
X402
R426
2.2k
2.2k
R427
100k
R432
100k
R433
100
R435
0.5%
10k
R441
0.5%
10k
R440
0.5%
10k
R439
100k
R434
100
R438
100
R437
1000p
C425
1000p
C426
1000p
C427
1000p
C428
100k
R448
100k
R447
100k
R446
100
R455
10k
R456
220k
R405
1000p
C413
100k
R408
2.2k
R407
100k
R406
10uH
L503
1k
R523
1k
R524
1k
R525
100k
R703
100k
R713
0
R508
1
2
3
4
5
6
7
8
8P
CN401
RESET
CLK_IN
UART_CLK
Ucom-TX(CD-RX)
Ucom-RX(CD-TX)
3.3V
FLASH_W
GND
100k
R428
100k
R431
100
R409
100
R420
100
R422
100
R423
10k
R515
100
R706
0
R704
47uH
L501
68uH
L502
0.01
C706
0
R701
RT1P141C-TP-1
Q402
FLASH PROGRAMMING BUFFER
100k
R402
RT1N141C-TP-1
Q701
FLASH PROGRAMMING BUFFER
JL001
JL002
JL003
JL004
JL005
JL006
JL007
JL008
JL009
JL010
JL011
JL012
JL013
JL014
JL015
JL016
JL017
JL018
JL019
JL020
JL021
JL022
JL023
JL024
JL025
JL026
JL027
JL028
JL029
JL030
JL031
JL032
JL033
JL034
JL035
JL036
JL037
JL038
JL039
JL040
JL041
560p
C201
560p
C101
1k
R101
1k
R201
RT1N141C-TP-1
Q401
10V
100
C701
2.2uH
FB701
0.01
C421
0.01
C424
0.01
C423
0.01
C704
0.01
C416
0.01
C429
LRB751V-40T1G
D401
LBAT54ALT1G
D701
10V
330
C514
1
2
3
4
5
NJM2387ADL3(TE2)
IC503
USB POWER CONTROL SWITCH
RT1N141C-TP-1
Q504
RT1N141C-TP-1
Q505
MAZ8039GLLS0
D510
1
C519
0.1
C516
0.1
C513
MAZ8056GMLS0
D505
10V
C523
100
10V
220
C518
12k
R503
0.5%
56k
R518
0.5%
10k
R520
0.5%
3.3k
R521
FB705
0
R512
100
R462
100
R460
100
R464
100
R463
100
R459
100
R461
0
R465
0.1
C435
1
C422
27p
C419
0.01
C434
0.01
C436
16V
10
C703
6
5
4
3
2
1
D
D
G
S
D
D
TPC6108(T5RSONYF,M
Q502
USB POWER SWITCH
6
5
4
3
2
1
D
D
G
S
D
D
RSQ035P03TR
Q503
SWITCHING REGULATOR
X401
7.92MHz
470
R410
FB702
0
R466
R714
0
R712
0
MA2J1110GLS0
D502
MA2J1110GLS0
D511
MA2J1110GLS0
D512
R467
0
470p
C521
2.2k
R443
2.2k
R444
2.2k
R442
FB707
FB301
C420
33p
R41
1
100k
R418
100k
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
IC401
MB90F058PF-G-118-JNE1
SYSTEM CONTROL
CYRIL_SEL
B-OUT_SEL
COL
 SW_SEL
ILLUMI_SEL
NCO
NCO
NOSE_SW
NCO
NCO
NCO
RE_IN0
RE_IN1
X_OUT
X_IN
VCC
VSS
C
UNISI
UNISO
UNISCK
USB_ON
I2C_SIO
I2C_SCK
USB_OVER
BUS_ON
SYS_RST
CD_ON
CDM_ON
ACC_IN
TEL_A
TT
ATT
AVCC
AVRH
RC_IN1
AVSS
QUALITY
VSM
SA_IN
KEY_IN1
KEY_IN0
RC_IN0
NCO
NCO
VSS
KEY_ACK0
KEY_ACK1
EXTATT_XEN
LCD_CE
LCD_SO
LCD_SCK
MD2
MD1
MD0
RESET
AREA_SEL2
AREA_SEL1
AREA_SEL0
W
AKE_UP
MC_RX
MC_TX
CLK_IN
Z_MUTE
NCO
TEST
VCC
VSS
NCO
AMP_STB
DIAG
VBUS_ON
SA_OUT
SA_CLK
NCO
TU_A
TT
NSMASK
RDS_ON
FLASH_EN0
FLASH_EN1
NCO
NCO
NCO
TU_ATTIN
BU_CHECK
EQ TYPE_SEL
NCO
NCO
NCO
NCO
NCO
VCC
VSS
OSC_OUT
OSC_IN
NCO
SIRCS
NCO
BEEP
ZAPPIN
SYNC_OUT
DD_ON
R468
100k
R452
R453
100k
R429
100k
R413
100k
R436
100
R450
R600
100k
R416
100k
R451
R449
R412
100k
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
BUS1
19
20
21
22
23
24
BUS3
BUS4
BUS5
MC_TX
MC_RX
RE0
LCD_CE
Z_MUTE
W
AKE_UP
SA_CLK
SA_DA
SA_IN
SIRCS
NOSE_SW
CLK_IN
WAKE_UP
VBUS_ON
SYNC_OUT
MC_RX
CDM_ON
DD_ON
VBUS_ON
UAR
T/CLK
XFLASH
LCD_CLK
LCD_DATA
MC_TX
UAR
T/CLK
CLK_IN
XFLASH
Z_MUTE
MC_RX
MC_TX
CD_ON
CDM_ON
SYNC_OUT
CD_ON
I2C_SIO
BU_IN
XFLASH
KEY1
RC0
KEY0
ZAPPIN
ATT
RC1
DD_ON
RE1
ACC
TEL
I2C_SCK
VIN
CONT
VOUT
VA
D
J
GND
(MG-101Z)
(1/2)
CD MECHANISM
UNIT
BU_IN
DC/DC 
CONVERTER
Q504,505
USB OVER CURRENT DETECT
PROGRAMMING
FLASH
BUFFER
FLASH
(
PROGRAMMING
)
R449,451
100k
R450,452
100k
(Page 17)
(Page 19)
(Page 19)
CDX-GT540UI/GT547UI
CDX-GT540UI/GT547UI
19
19
4-6.  SCHEMATIC  DIAGRAM  – MAIN Section (3/3) –
• See page 15 for Waveforms.     • See page 23 for IC Block Diagrams.
C
8
6
G
7
H
13
11
10
12
E
B
5
1
4
I
2
F
9
J
A
14
D
3
BOARD
(1/3)
MAIN
2
3
(2/3)
MAIN
BOARD
BOARD
4
MAIN
(2/3)
3
BOARD
CN901
KEY
A
IC B/D
IC B/D
0
0
0
0
0
0
0
0
0
0
0
4.1
4.1
0
0
0
8.2
3.1
3.1
3.6
4.1
4.1
3.6
3.6
3.1
3.1
3.4
7.3
8.6
5.6
2.6(4.6)
2.1
0(1.2)
0(1.2)
1.3(2.9)
8.6(7)
8.6(7)
6.3
6.3
0.7(1)
3.9(4.9)
3.6
0.3(2)
3.8
3.8
0.5(1.8)
8.6
3.1(2.9)
3.1(2.9)
0(4.1)
0(1.3)
3.7
3.7
3.7
3.7
3.3
3.3
0
*
1
*
1
   (GT547UI)
   (GT540UI)
4.1
4.1
4.1
4.1
4.1
4.1
IC302
IC001
MAIN BOARD (3/3)
0.1
C316
50V
2.2
C203
100p
C113
50V
10
C106
50V
10
C206
100p
C207
50V
10
C212
100p
C213
100p
C107
50V
2.2
C103
50V
10
C112
50V
10
C319
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
20P
CN403
GND
USB_VBUS
GND
USB_GND
KEY_GND
USB_D+
AUX_LCH
USB_D-
KEY1
AUX_RCH
RE1
AUX_GND
RE0
KEY0
LCD_CE
SIRCS
LCD_CLK
LCD_DATA
ILL+B
PANEL(NOSE SW)
R311
47k
100p
C104
100p
C204
12k
R104
12k
R204
2.2k
R302
470
R103
470
R203
D201
D101
1000p
C301
MAZ8068GMLS0
D410
10k
R117
10k
R217
10k
R107
10k
R207
50V
1
C105
50V
1
C205
50V
2.2
C323
47p
C302
R404
0
1
2
3
3P
CN501
USB_D+
USB_D-
USB_GND
FB201
FB101
1k
R212
1k
R112
10k
R213
10k
R113
C318
1
1
C812
1
C813
R
T1N140C-TP-1
Q103
R
T1N140C-TP-1
Q203
1.5k
R303
0
R829
CAM003
50V
10
C208
50V
10
C108
0
R304
10V
100
C520
10
R309
D301
UDZSUSTE-176.8B
D403
MAZ8068GMLS0
D404
MAZ8068GMLS0
16V
220
C317
C524
0.1
D411
0.1
10
R526
10
R527
LTC614TKFP8T146
Q102
LTC614TKFP8T146
Q202
LTC614TKFP8T146
Q104
LTC614TKFP8T146
Q204
220
R106
220
R116
220
R206
220
R216
BD3447AFV-E2
IC302
ELECTRONIC VOLUME
BUS_LCH
BUS_RCH
TU_LCH
TU_RCH
CD_LCH
CD_RCH
AUX_LCH
AUX_GND
AUX_RCH
NCO
NCO
NCO
ZAPPIN1
NCO
NCO
ZAPPIN2
EBIAS
DS2_L
DS1_L
DS3_L
DS3_R
DS1_R
DS2_R
EBIAS
RING_LCH
RING_RCH
SA_CLK
SA_DA
SA_OUT
R/S_OUT_RCH
R/S_OUT_LCH
OUT_RRCH
OUT_RLCH
OUT_FRCH
OUT_FLCH
VCC
SCL
SDA
GND
FIL
G
J303
2P
4.7k
R11
1000p
C1
JW148
0.22
C12
0.01
C19
JW138
15p
C6
12p
C18
0.47
C16
0.1
C9
470k
R2
3.3uH
L1
0.01
C22
VR1
31
30
29
28
27
2
32
1
3
4
5
6
26
25
24
7
8
9
23
22
21
20
10
11
12
19
18
17
13
14
15
16
31
30
29
28
27
2
32
35
34
33
36
39
38
37
40
1
3
4
5
6
26
25
24
7
8
9
23
22
21
10
11
12
13
14
15
16
17
18
19
20
IC001
PHASE LOCKED LOOP(PLL)
AMRFIN
AMRFDEC
FMIN2
FMIN1
GNDRF
VCC2
AMRFAGC
LOUT
ROUT
GNDAUD
AMIFAGC2
MPXIN
MPXOUT
RSSI
XTAL2
XTAL1
GNDD
SCL
SDA
VREF
VREGSUP
VCC1
GND
VCODEC
PLL
PLLREF
TEST
AMSELIN1
AMSELIN2
AMIFAGC1
AMSELOUT1
AMSELOUT2
0.1
C24
22
R12
0
R5
0.01
C20
0.1
C17
JW126
68k
R6
0.1
C27
100
R13
560uH
L8
0.1
C26
1000p
C5
0
R15
0
R4
JW137
33k
R10
0
R3
0.1
C25
JW147
L2
2.2uH
470k
R1
100
R14
16V
47
C28
CAM002
4MHz
X1
1
C21
33p
C8
0
R16
L6
FM MIX
1
2
3
4
6
560uH
L7
JW102
J1
0.01
C23
2.2
C13
19
20
21
BUS3
22
BUS4
BUS5
23
24
25
26
27
28
29
30
31
BUS2
32
33
ZAPPIN
SA_CLK
I2C_SCK
I2C_SIO
I2C_SCK
I2C_SIO
KEY1
KEY0
LCD_CE
SIRCS
LCD_CLK
LCD_DATA
RE1
NOSE_SW
RE0
SA_IN
SA_DA
(CHASSIS)
(CHASSIS)
Q102-104,202-204
MUTE
-1
-2
AUDIO OUT
R
L
REAR/SUB
(ANTENNA)
(2/2)
(MG-101Z)
UNIT
CD MECHANISM
IC001
TEF6617T/V1/S470,518
TEF6617T/V1/S470/M5,518
(Page 18)
(Page 21)
(Page17)
(Page18)
CDX-GT540UI/GT547UI
CDX-GT540UI/GT547UI
20
20
4-7.  PRINTED  WIRING  BOARDS  – KEY Section  –
•  
: Uses unleaded solder.
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
A
MAIN BOARD 
CN403
Z
AF/TA/PTY
2/ALBM +
1/ALBM –
. m
SEEK–/
M M=
/SEEK+
CN902
(USB)
RE901
PUSH ENTER/
SELECT
(VOLUME)
1-880-412-
1-880-412-
1-880-413-
(11)
11
(11)
11
(11)
11
LCD901
LIQUID CRYSTAL DISPLAY PANEL
LCD BACK
LIGHT
6/PAUSE
DSPL/SCRL
5/DM+
4/SHUF
3/REP
MODE
(RING ILLUMINATOR)
LED924,925,928,929
LED912,S905
(ILLUMINATOR)
LED907,932
(ILLUMINATOR)
LED909,934
LED914,S902
LED903,S901
SOURCE/OFF
LED910,S903
LED919,S904
LED921,S906
J901
AUX
LSW905
LSW906
LSW907
LSW908
LSW909
LSW910
LSW911
LSW912
LSW913
ZAP
LED916,S907
IC902
LED901
DISC SLOT
INDICATOR
LED905
1
5
6
4
IC902
1
16
17
32
33
48
64
1
19
2
20
FB902
FB903
FB901
W001
W002
W003
BRN
RED
ORG
BRN
RED
ORG
IC901
1
52
LSW905
LSW906
LSW907
LSW908
LSW909
LSW910
LSW911
LSW912
LSW913
LED901
LED903
LED905
LED910
LED912
LED914
LED916
LED919
LED921
LED924
LED925
LED928
LED929
LED932
LED907
LED909
LED934
CN902
R922
R923
R924
R929
R930
R935
R948
S901
R962
S902
S903
S904
S905
S906
R967
S907
R974
R975
RE901
B C E
E C B
49
R899
Q901
Q907
L901
VDR900
VDR901
R900
R904
R905
R906
R907
R908
R909
R910
R911
R914
R915
R916
R917
R918
R919
CN901
R920
R921
R925
R926
R928
R931
R933
R934
C901
C902
C903
C904
R942
C906
R943
C909
R945
R946
R949
C910
C911
C912
R952
R953
R958
R959
R963
R966
R932
R970
R971
R976
R977
R983
R984
R985
R989
R990
R991
R998
R999
D901
D902
D906
D907
D908
D909
D910
D911
D912
W004
W005
W006
2
3
4
1
(Page 16)
Page of 36
Display

Click on the first or last page to see other CDX-GT540UI / CDX-GT547UI service manuals if exist.