Sony CDX-GT56UI Service Manual ▷ View online
CDX-GT56UI/GT56UIW
37
MAIN BOARD (5/5) IC601 M321FEFG-7KN3 (SY (USB CONTROL)
Pin No.
Pin Name
I/O
Description
1
AVSS
―
Ground terminal for A/D converter
2
VREFH
―
Reference power supply terminal for A/D converter
3
RESET
I
Reset signal input
4
MODE
I
Mode signal input
5
OPEN REQ
O
Not used. (Open)
6
EJECT OK
I
Front panel open eject signal input
7
NC
―
Not used. (Open)
8
WAKE UP
I
Wake up request signal input
9 to 11
NC
―
Not used. (Open)
12
BU_IN
I
Back up signal input
13
DVSS
―
Ground terminal
14
NC
―
Not used. (Open)
15
CD_ZDET
I
Zero detection signal input
16
DEC_XMUTE
O
Muting on/off control signal output
17
DEC_LRCK
O
L/R sampling clock signal(44.1kHz) output
18
DEC_BCK
O
Bit clock signal output
19
DEC_DATA
O
Audio data signal output
20
DEC_GATE
O
Gate signal output
21
DEC_REQ
I
Request signal input
22
CD_SO
O
Serial data output
23
CD_SI
I
Serial data input
24
CD_SCLK
O
Serial clock output
25
MEC_SELFSW
I
Mechanism self switch signal input
26
NC
―
Not used. (Open)
27
DEC_INT
I
Request signal input
28
CD_XRST
O
CD reset signal output
29
CD_XCCE
O
Chip enable signal output
30,31
NC
―
Not used. (Open)
32
Z/Y_CHECK
―
Not used. (Open)
33
DVCC3
―
Power supply terminal
34
DVSS
―
Ground terminal
35
DRV_ON
O
Motor drive on/off control signal output
36
MEC_LOAD
O
Mechanism loading signal output(Load)
37
MEC_EJECT
O
Mechanism eject signal output(Eject)
38
MEC_SSTBY
O
Strobe standby signal output
39
MEC_LIMIT
I
Mechanism deck sled limit in detection signal input
40
MEC_INSW
I
Mechanism deck pack in detection signal input
41
MEC_DSW
I
Mechanism deck chacking end detection signal input
42,43
NC
―
Not used. (Open)
44
XLINE
―
Not used. (Open)
45
XINTIO
―
Not used. (Open)
46
FE/SBAD_SEL
―
Not used. (Open)
47
Z/Y_SEL
―
Not used. (Open)
48
NC
―
Not used. (Open)
49
MECON_CHECK
I
Mechanism on/off check signal input
50
CDON_CHECK
I
CD on/off check signal input
51
A_ATT
O
Audio attenuation signal output
52
MECON
O
Mechanism power supply (+6V) control signal output
53
CDON
O
CD power supply (+3.3V) control signal output
54
ZMUTE
O
Zero mute signal output
55
TXD
O
Mechanism TX signal output
56
RXD
I
Mechanism RX signal input
57,58
NC
―
Not used. (Open)
59
DVCC3
―
Power supply terminal
60
DVSS
―
Ground terminal
61
SWDIO
I/O
Flash write SWDIO signal input/output
62
SWCLK
I/O
Flash write SWCLK signal input/output
63
TRACECLK
―
Not used. (Open)
64
TRACEDATA0
―
Not used. (Open)
Ver. 1.3
CDX-GT56UI/GT56UIW
38
Pin No.
Pin Name
I/O
Description
65
TRACEDATA1
―
Not used. (Open)
66
TRACEDATA2
―
Not used. (Open)
67
TRACEDATA3
―
Not used. (Open)
68
CP_SDA
I/O
CP serial data input/output
69
CP_SCL
O
CP serial clock output
70
NC
―
Not used. (Open)
71
CP_RESET
O
CP reset signal output
72
CPON
O
CP power supply control signal output
73
CDON_15V
O
Servo power supply (+1.5V) control signal output
74
VBUS_ON
O
USB VBUS control signal output
75
NC
―
Not used. (Open)
76
REGVCC3
―
Power supply terminal
77
XT1
―
Not used. (Fixed at L.)
78
XT2
―
Not used. (Open)
79
CVCC3
―
Power supply terminal
80
X1
I
System clock input terminal(12MHz)
81
CVSS
―
Ground terminal
82
X2
O
System clock input terminal(12MHz)
83
DVCC3
―
Power supply terminal
84
DVSS
―
Ground terminal
85
USB+
I/O
USB serial data input/output +
86
USB-
I/O
USB serial data input/output -
87
NMI
I
Non-maskable interrupt signal input(Fixed at H).
88,89
TEST
―
Not used. (Open)
90,91
NC
―
Not used. (Open)
92
AVCC3
―
Power supply terminal
93 to 100
NC
―
Not used. (Open)
39
CDX-GT56UI/GT56UIW
SECTION 5
EXPLODED VIEWS
1
X-2581-176-3 PANEL
ASSY,
SUB
2
3-042-244-11 SCREW
(T)
3
X-2547-583-3 LOCK
ASSY
(T)
4
4-410-504-01 SCREW (+PTT 2.6X6), GROUND POINT
5
A-1831-806-A MAIN
BOARD, COMPLETE (GT56UI) (Former type)
5
A-1831-806-B MAIN BOARD, COMPLETE (GT56UI) (New type)
5
A-1833-229-A MAIN BOARD, COMPLETE (GT56UIW)
(Former type)
5
A-1833-229-B MAIN BOARD, COMPLETE (GT56UIW) (New type)
6
1-839-372-11 CONNECTION CORD FOR AUTOMOBILE
(POWER)
7
3-243-844-01 CUSHION (SUB PANEL)
FU601
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) (10 A/32 V)
TU901
A-1878-198-A TUX-DSP02 (FM/AM TUNER UNIT)
#1
7-685-792-09 SCREW +PTT 2.6X6 (S)
#2
7-685-790-01 SCREW +PTT 2.6X4 (S)
#3
7-685-793-01 SCREW +PTT 2.6X8 (S)
#4
7-685-794-01 SCREW +PTT 2.6X10 (S)
#5
7-685-134-19 SCREW +P 2.6X8 TYPE2 NON-SLIT
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice. Some delay should be anticipated
when ordering these items.
vice. Some delay should be anticipated
when ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
Parts Color Cabinet’s Color
• Accessories are given in the last of the
electrical parts list.
5-1. MAIN SECTION
The components identifi ed by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
Les composants identifi és par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
not supplied
not supplied
TU901
FU601
not supplied
front panel section
#1
#1
#1
#1
#3
#4
#4
#4
#5
#5
#3
#2
#2
#1
B
B
1
2
7
3
6
5
not supplied
not supplied
4
MAIN board
A
A
CD mechanism section
(
(
MG-101CA-188
)
(GT56UI)
Ver. 1.3
Note 2: COMPLETE MAIN BOARD (Ref. No. 5) has been changed in the
midway of production. When COMPLETE MAIN BOARD (Ref.
No. 5) is replaced, be sure to refer to “ABOUT CHANGE OF THE
LCD DRIVER IC (IC901) ON THE KEY BOARD” on page 6.
No. 5) is replaced, be sure to refer to “ABOUT CHANGE OF THE
LCD DRIVER IC (IC901) ON THE KEY BOARD” on page 6.
Note 1: When the complete MAIN board is replaced, the
destination setting is necessary. Refer to “NOTE
THE MAIN BOARD OR SYSTEM CON-
TROLLER (IC501) REPLACING” on page 4.
THE MAIN BOARD OR SYSTEM CON-
TROLLER (IC501) REPLACING” on page 4.
40
CDX-GT56UI/GT56UIW
5-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
4-183-276-01 BUTTON
(EJECT)
52
4-183-275-13 BUTTON
(PRESET)
53
4-183-273-11 BUTTON
(EQ3)
54
4-183-274-01 BUTTON
(RELEASE)
55
2-639-881-01 SPRING
(RELEASE)
56
X-2581-897-1 PANEL (SV) ASSY, FRONT (GT56UI)
56
X-2581-898-1 PANEL (SV) ASSY, FRONT (GT56UIW)
57
X-2581-858-1 KNOB (VOL) (SV) ASSY
58
4-183-271-02 BUTTON
(MODE)
59
4-183-272-31 BUTTON
(BACK)
60
4-183-270-02 BUTTON
(SOURCE)
61
1-780-968-11 CONDUCTIVE BOARD, CONNECTION
62
4-278-080-01 ILLUMINATOR
(LCD)
63
4-279-394-01 PANEL,
BACK
64
3-250-543-21 SCREW (+B P-TITE M2)
65
A-1831-808-A PANEL OVERALL ASSY, FRONT (GT56UI)
(Former type)
65
A-1831-808-B PANEL OVERALL ASSY, FRONT (GT56UI)
(New type)
65
A-1831-811-A PANEL OVERALL ASSY, FRONT (GT56UIW)
(Former type)
65
A-1831-811-B PANEL OVERALL ASSY, FRONT (GT56UIW)
(New type)
CN902
1-822-798-11 USB CONNECTOR (USB)
IC902
6-600-806-01 IC PNJ4813M01S0 ( )
J901
1-822-148-11 SMALL TYPE JACK (VERTICAL) (AUX)
LCD901 1-811-224-11
DISPLAY PANEL, LIQUID CRYSTAL
RE901 1-487-023-22 ROTARY
ENCODER
(PUSH ENTER/SELECT (VOLUME))
LCD901
J901
CN902
RE901
not supplied
not supplied
not supplied
(KEY board)
(KEY board)
51
52
53
54
56
57
58
59
60
55
61
62
63
64
64
65
IC902
Ver. 1.2
Note 2: Refer to the servicing notes “NOTE FOR REPLACEMENT OF THE
USB CONNECTOR (CN902) AND THE AUX JACK (J901)” on page 3,
if replacing CN902 and J901.
if replacing CN902 and J901.
Note 1: FRONT PANEL OVERALL ASSY (Ref. No. 65) has been changed in
the midway of production. When FRONT PANEL OVERALL ASSY
(Ref. No. 65) is replaced, be sure to refer to “ABOUT CHANGE OF
THE LCD DRIVER IC (IC901) ON THE KEY BOARD” on page 6.
(Ref. No. 65) is replaced, be sure to refer to “ABOUT CHANGE OF
THE LCD DRIVER IC (IC901) ON THE KEY BOARD” on page 6.
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