Sony CDX-GT540UI / CDX-GT547UI Service Manual ▷ View online
CDX-GT540UI/GT547UI
25
• IC Pin Function Description
MAIN BOARD (2/3) IC401 MB90F058PF-G-118-JNE1 (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
CYRIL_SEL
I
Cyril select signal input (L: No cyril select (CDX-GT540UI), H: Cyril select (CDX-GT547UI))
2
B-OUT_SEL
I
Black out setting select signal input (L: No black out)
3
COL SW_SEL
I
Key illumination initial color setting select signal input (H: Blue)
4
ILLUMI_SEL
I
Key illumination voltage setting select signal input (H: 10.4 V)
5, 6
NCO
O
Not used. (Open)
7
NOSE_SW
I
Front panel detach/attach detect signal input (L: with front panel, H: without front panel)
8 to 10
NCO
O
Not used. (Open)
11
RE_IN0
I
Rotary encoder signal input 0
12
RE_IN1
I
Rotary encoder signal input 1
13
X_OUT
O
Low speed operation clock signal output (32.768 kHz)
14
X_IN
I
Low speed operation clock signal input (32.768 kHz)
15
VCC
―
Power supply pin (+3.3 V)
16
VSS
―
Ground
17
C
―
Regulator reference capacitor connecting pin
18
UNISI
I
SONY-BUS data input (Fixed at L in this set)
19
UNISO
O
Not used. (Open)
20
UNISCK
O
Not used. (Open)
21
USB_ON
O
USB over current detect IC control signal output
22
I2C_SIO
I/O
IIC serial data input/output
23
I2C_SCK
O
IIC serial clock signal output
24
USB_OVER
I
USB over current detect signal input
25
BUS_ON
O
BUS ON signal output (Fixed at H in this set)
26
SYS_RST
O
System reset signal output
27
CD_ON
I
CD mechanism servo power supply control request signal input
28
CDM_ON
I
CD mechanism deck power supply control request signal input
29
ACC_IN
I
Accessory power supply detect signal input
30
TEL_ATT
I
Telephone attenuator detect signal input
31
ATT
O
Audio mute control signal output
32
AVCC
―
A/D converter power supply pin (+3.3 V)
33
AVRH
―
A/D converter external reference power supply pin (+3.3 V)
34
RC_IN1
I
Rotary commander shift key signal input 1
35
AVSS
―
Ground for A/D converter
36
QUALITY
I
Not used. (Open)
37
VSM
I
S meter voltage detect signal input
38
SA_IN
I
Spectrum analyzer DC input
39
KEY_IN1
I
Key signal input 1
40
KEY_IN0
I
Key signal input 0
41
RC_IN0
I
Rotary commander shift key signal input 0
42, 43
NCO
O
Not used. (Open)
44
VSS
―
Ground
45
KEY_ACK0
I
Key acknowledge detect signal input (Rotary commander)
46
KEY_ACK1
I
Key acknowledge detect signal input (Front panel)
47
EXTATT_XEN
O
L is sent when electronic volume IC has the status of CD/USB (H is sent when it has the status
of other source)
of other source)
48
LCD_CE
O
LCD driver chip enable signal output
49
LCD_SO
O
LCD driver serial data output
50
LCD_SCK
O
LCD driver serial clock signal output
51
MOD2
I
Micon operation mode setting signal input (active: L)
52
MOD1
I
Micon operation mode setting signal input (Fixed at H in this set)
53
MOD0
I
Micon operation mode setting signal input (active: H)
54
RESET
I
Reset signal input
55
AREA_SEL2
I
Destination setting pin 2 (L: CDX-GT540UI, H: CDX-GT547UI)
56
AREA_SEL1
I
Destination setting pin 1 (L: CDX-GT540UI, H: CDX-GT547UI)
57
AREA_SEL0
I
Destination setting pin 0 (Fixed at H in this set)
58
WAKE_UP
O
CD mechanism deck micon wake up signal output
59
MC_RX
I
MC-BUS communication and CD mechanism deck micon communication RX input
60
MC_TX
O
MC-BUS communication and CD mechanism deck micon communication TX output
CDX-GT540UI/GT547UI
26
Pin No.
Pin Name
I/O
Description
61
CLK_IN
I
Flash programming serial clock signal input
62
Z_MUTE
I
Z mute signal input
63
NCO
O
Not used. (Open)
64
TEST
O
Not used. (Open)
65
VCC
―
Power supply pin (+3.3 V)
66
VSS
―
Ground
67
NCO
O
Not used. (Open)
68
AMP_STB
O
Standby signal output for power regulator IC
69
DIAG
I
Condition signal input from power amp IC
70
VBUS_ON
I
VBUS power supply control signal input (L: VBUS OFF, H: VBUS ON)
71
SA_OUT
O
Spectrum analyzer serial data output
72
SA_CLK
O
Spectrum analyzer serial clock signal output
73
NCO
O
Not used. (Open)
74
TU_ATT
O
Not used. (Open)
75
NSMASK
O
Not used. (Open)
76
RDS_ON
O
Not used. (Open)
77
FLASH_EN0
I
Flash writer programming wake up signal input (Fixed at L)
78
FLASH_EN1
I
Flash writer programming wake up signal input
79 to 81
NCO
O
Not used. (Open)
82
TU_ATTIN
O
Not used. (Open)
83
BU_CHECK
I
Back up power supply detect signal input
84
EQ TYPE_SEL
I
Equalizer type setting signal input (L: general model)
85 to 89
NCO
O
Not used. (Open)
90
VCC
―
Power supply pin (+3.3 V)
91
VSS
―
Ground
92
OSC_OUT
O
High speed operation clock signal output (7.92 MHz)
93
OSC_IN
I
High speed operation clock signal input (7.92 MHz)
94
NCO
O
Not used. (Open)
95
SIRCS
I
Remote control signal input
96
NCO
O
Not used. (Open)
97
BEEP
O
Beep signal output for power amplifi er IC
98
ZAPPIN
O
Zappin beep signal output
99
SYNC_OUT
O
DC-DC converter oscillation frequency control signal output
100
DD_ON
O
DC-DC converter power supply ON/OFF control signal output
27
CDX-GT540UI/GT547UI
SECTION 5
EXPLODED VIEWS
1
X-2320-690-3 PANEL
ASSY,
SUB
2
3-042-244-11 SCREW
(T)
3
X-2179-399-1 LOCK
ASSY
(S)
4
2-050-124-01 SCREW +BTT 2.6X5
5
A-1733-596-A MAIN BOARD, COMPLETE (GT540UI)
5
A-1733-597-A MAIN BOARD, COMPLETE (GT547UI)
6
1-831-838-11 CORD (WITH CONNECTOR) (ISO) (POWER)
FU601
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
#1
7-685-792-09 SCREW +PTT 2.6X6 (S)
#2
7-685-790-01 SCREW +PTT 2.6X4 (S)
#3
7-685-793-09 SCREW +PTT 2.6X8 (S)
#4
7-685-134-19 SCREW +P 2.6X8 TYPE2 NON-SLIT
#5
7-685-794-09 SCREW +PTT 2.6X10 (S)
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.
front panel section
MG-101Z-188//Q
not supplied
not supplied
FU601
not supplied
not supplied
not supplied
#1
#1
#1
#3
#5
#5
#4
#4
#3
#2
#1
A
A
B
B
1
2
3
4
6
A
5
not supplied
28
CDX-GT540UI/GT547UI
5-2. FRONT PANEL SECTION
51
A-1734-003-A PANEL COMPLETE ASSY, FRONT (GT540UI)
51
A-1734-008-A PANEL COMPLETE ASSY, FRONT (GT547UI)
52
X-2514-266-1 BUTTON
ASSY
(S)
53
X-2514-269-2 PANEL (SV) ASSY, FRONT (GT540UI)
53
X-2514-270-2 PANEL (SV) ASSY, FRONT (GT547UI)
54
X-2514-264-1 KNOB (VOL) (SV) ASSY
55
2-639-881-01 SPRING
(RELEASE)
56
1-780-789-12 CONDUCTIVE BOARD, CONNECTION
57
4-144-557-01 ILLUMINATOR
(LCD)
58
4-141-754-01 PANEL,
BACK
59
3-250-543-21 SCREW (+B P-TITE M2)
60
X-2187-544-3 CASE ASSY (for FRONT PANEL)
CN902
1-822-798-11 CONNECTOR, USB 6P (USB)
LCD901 1-802-952-11 DISPLAY PANEL, LIQUID CRYSTAL
RE901 1-479-902-32 ENCODER,
RE901 1-479-902-32 ENCODER,
ROTARY
(PUSH ENTER/SELECT (VOLUME))
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
LCD901
CN902
RE901
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
(KEY board)
(KEY board)
51
52
55
56
57
58
59
59
53
54
not supplied
(JACK board)
(JACK board)
60
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