Sony CDX-GT475ER / CDX-GT475UR / CDX-GT525UR Service Manual ▷ View online
CDX-GT475ER/GT475UR/GT525UR
17
3-12. SLED MOTOR ASSY
3 sled motor assy
sled motor assy
1 spring
spring
stand
stand
turn table
2 three serration screws
(M2
u 3)
three
serration
screws
(M2
u 3)
bearing (F)
bearing (R)
Note 1: Place the stand with care not to touch the turn table.
Note 2: Never remove these parts since they were adjusted.
Note 3: Take care to prevent the chassis from being bent
when tightening the three machine screws.
• Note for Assembly
–
bottom side view
–
–
bottom side view
–
–
bottom side view
–
CDX-GT475ER/GT475UR/GT525UR
18
3-13. OPTICAL PICK-UP SECTION
3-14. OPTICAL PICK-UP
1
2 optical pick-up section
Note: Be careful not to touch the lens and hologram
terminal when removing the optical pick-up section.
–
bottom side view
–
There is space at the end of the
leaf spring (OPS) to avoid
contact with the slide.
leaf spring (OPS) to avoid
contact with the slide.
5 optical pick-up
4 lead screw assy
Prevent the end of the
leaf spring (OPS) from being
in contact with the OP slide base.
leaf spring (OPS) from being
in contact with the OP slide base.
Prevent the end of the
leaf spring (OPS) from being
in contact with the OP slide base.
leaf spring (OPS) from being
in contact with the OP slide base.
1 tapping screw
(P
1.4)
2 leaf spring (OPS)
3 rack
–
bottom side view
–
• Notes for Assembly
CDX-GT475ER/GT475UR/GT525UR
CDX-GT475ER/GT475UR/GT525UR
19
19
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM - SERVO Section -
SIGNAL PATH
: AUDIO
: CD
: USB
R-ch is omitted due to same as L-ch.
CD MECHANISM
DECK BLOCK
(MG-101CA-188)
AUTO POWER
CONTROL
Q710
FPI1
A
B
C
F
E
1/2VCC
PD
LD
18
FNI2
15
FNI1
16
FPI2
17
TNI
21
TPI
20
VRO
22
LDO
25
MDI
24
CD HEAD AMP,
DIGITAL SERVO PROCESSOR,
AUDIO DSP
IC701
FOCUS
FOO
31
TRACK
TRO
32
SL
FMO
34
SP
DMO
35
DRV_ON
DRV_ON
3
LOAD
MEC_LOAD
41
EJECT
MEC_EJECT
42
DM
127
DP
125
D_SW
MEC_DSW
69
IN_SW
MEC_INSW
68
L_SW
MEC_LIMIT
7
SELF
MEC_SELFSW
16
X701
16.934MHz
XO
XI
67
66
X601
12MHz
XO
XI
130
132
70
ADIN1 (IN_L-CH)
74
ADIN2 (IN_R-CH)
PRE_L
PRE_R
A
B
57
DAO3 (F_L-CH)
54
DAO2 (F_R-CH)
R-CH
59
DAO4 (R_L-CH)
61
DAO5 (SUB-CH)
52
DAO1 (R_R-CH)
R-CH
FL
FL, RL, SUB
RL
SUB
24
BSIF_LRCK
37
CD_BUS0
38
CD_BUS1
39
CD_BUS2
41
CD_BUCK
22
BSIF_DA
TA
25
BSIF_BCK
5
DEC_INT
9
DEC_XMUTE
92
BSIF_LRCK
91
BSIF_BCK
93
DEC_XMUTE
23
BSIF_GA
TE
89
BSIF_GA
TE
63 DSP_RST
85
/RST
64 DSP_SSTBY
37
/SRAMSTB
4
BSIF_INT
88
BSIF_INT
87
DEC_INT
90
BSIF_DA
TA
CD_BUS0
77
CD_BUS1
78
CD_BUS2
79
CD_BUCK
81
45
CD_XCCE
CD_XCCE
82
40
CD_BUS3
CD_BUS3
80
4
3
5
D+
D–
V_BUS
USB_VBUS
USB1
95
SP_DA
TA
SP_DA
TA
15
96
SP_CLK
SP_CLK
14
17
A-ATT
MD_MUTE_IN
72
8
CD_XRST
CD_XRST
71
113
DOWNLD_DET
DOWNLD_DET
99
59
MC_RX
MC_TX
22
58
MC_TX
MC_RX
20
94
ZDET
CD_ZDET
16
CS
SERIAL
FLASH
IC602
1
WP
3
HOLD
7
11
SF_HOLD
10
SF_WP
20
SF_CE
DO
2
DI
5
CLK
6
21
SF_CLK
18
SF_SO
19
SF_SI
MAIN SYSTEM
CONTROLLER
CONTROLLER
IC501 (1/3)
SUB SYSTEM
CONTROLLER
IC601 (1/2)
2
RESETn
GHOST_RST
59
(Page 20)
(Page 20)
CDX-GT475ER/GT475UR/GT525UR
CDX-GT475ER/GT475UR/GT525UR
20
20
4-2. BLOCK DIAGRAM - MAIN Section -
A
ELECTRICAL VOLUME, INPUT SELECTOR
IC401
MAIN SYSTEM CONTROLLER
IC501 (2/3)
AU_OUT_FL 36
AU_OUT_RL 38
AU_OUT_SL 40
R-CH
FL+
FL–
5
6
8
FR+
FR–
2
7
RL+
CN301 (1/2)
POWER AMP
IC301 (1/2)
RL–
RR+
3
4
1
RR–
R-CH
MUTING
Q406
MUTING
Q404
MUTING
Q402
: TUNER
: AUX
: AUDIO
IN-RL
11
IN-FL
12
I2C_SDA
2
I2C_SCL
4
OUT-RL- 7
OUT-RL+ 9
OUT-FL- 3
OUT-FL+ 5
R-CH
R-CH
REAR/SUB
AUDIO OUT
L
R
DIAG
25
STB
22
BEEP
16
R-CH
R-CH
45 HIT2_DATA
46 HIT2_CLK
47 HIT2_RESET
46 HIT2_CLK
47 HIT2_RESET
28
I2C_SIO
27
I2C_SCK
57
DIAG
58
AMPSTB
26
BEEP
56
ATT
J1
(ANTENNA IN)
TU_LCH
5
I2C_SDA
23
I2C_SCL
22
B
PRE_R
PRE_L
27
AU_OUT_RCH
28
AU_OUT_LCH
30 AU_IN_SUB
FL, RL, SUB
31 AU_IN_RL
33 AU_IN_FL
SUB
RL
FL
AUX_LCH
8
SIGNAL PATH
R-ch is omitted due to same as L-ch.
J401
CN01
TUX-DSP02 (TUNER UNIT)
AUDIO_OUT_L
RF_ANT_IN
SDA
SCL
RSTN
AUDIO_OUT_R
J901
AUX
MUTING CONTROL
Q407, 409 (Suffix-21)
Q407 – 409 (Suffix-22)
(Page 19)
(Page 19)
Note: Refer to “MAIN AND KEY BOARDS DISCRIMINATION” on page 2 on supplement-1
for how to distinguish Suffi x-21 and Suffi x-22 of the MAIN board.
Ver. 1.1
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