Sony CDX-GT500 / CDX-GT500EE / CDX-GT50W / CDX-GT550 Service Manual ▷ View online
37
CDX-GT50W/GT500/GT500EE/GT550
Pin No.
Pin Name
I/O
Pin Description
64
CDON
O
Servo power supply control signal output H: power on
65
XUART
I
Sony-Bus/MC-Bus change signal input H: Sony-Bus, L: MC-Bus
66
ZMUTE
O
Zero detection mute signal output
67
MECON CHK
I
MECON rising detection signal input
68
CDON CHK
I
CDON rising detection signal input
69 to 74
NC
—
Not used. (Open)
75
RSTX
I
System reset signal input
76
NC
—
Not used. (Open)
77
X1A
—
Sub-clock connect pin Not used in this set. (Open)
78
X0A
—
Sub-clock connect pin Not used in this set. (Connect to Vss.)
79
VSS
—
Ground pin
80
X0
I
Main-clock connect pin (12 MHz)
81
X1
O
Main-clock connect pin (12 MHz)
82
VCC
—
Power supply pin (+3.3 V)
83
XWD
I
Not used in this set. (Open)
84
XINIT3
I
Not used in this set. (Open)
85
NC
—
Not used. (Open)
86
XSJIG
I
Not used in this set. (Open)
87 to 89
XINIT0 to 2
I
Not used in this set. (Open)
90 to 96
NC
—
Not used. (Open)
97
XDES
I
Mode select pin
98
XLINE
I
Not used in this set. (Open)
99, 100
NC
—
Not used. (Open)
38
CDX-GT50W/GT500/GT500EE/GT550
IC711 MB90487APF-G-162E1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
Pin No.
Pin Name
I/O
Pin Description
1
AREASEL2
I
Destination setting pin
2
AREASEL1
I
Destination setting pin
3
AREASEL0
I
Destination setting pin
4
NCO
O
Not used. (Open)
5
NOSE SW
I
Front panel open/close detect signal input L: Panel on, H: Panel off
6
NCO
O
Not used. (Open)
7
BEEP
O
Beep signal output
8
DIAG
I
Power AMP status signal input
9
VOL ATT
O
Electronic volume attenuate control signal output
10
FSW IN
I
D/D converter oscillater frequency count signal input
11
VSS
—
Ground pin
12
TUATT
O
Tuner mute control signal output
13
NSMASK
O
Noise mask signal output (AEP, UK model only)
14
ILLUMI SEL
I
Illumination voltage setting signal input
15
SEL1
O
Not used in this set. (Open)
16
NCO
O
Not used. (Open)
17
AUXIN
O
AUX select signal output L: AUX, H: BUS IN
18
DISP RSET
O
Display reset signal output
19
FL ON
O
D/D converter control signal output H: On
20
DISP ON
O
Display control signal output H: On
21
ATT
O
Audio mute control signal output
22
SYSRST
O
System control reset signal output
23
VCC5
—
Power supply pin (+3.3 V)
24
EEP SIO
I/O
EEPROM bus serial data input/output
25
EEP CKO
O
EEPROM bus serial clock output
26
AMPSTB
O
Power AMP satandby signal output
27
DISP RX
I/O
Display IC communication signal input/output
28
DISP TX
O
Display IC communication signal output
29
MAST IF
O
Display IC communication start signal output
30
RDS ON
O
RDS ON signal output (AEP, UK model only)
31
RE IN0
I
Rotary encoder signal input 0
32
RE IN1
I
Rotary encoder signal input 1
33
I2C SCK
O
I2C bus serial clock signal output
34
I2C SIO
I/O
I2C bus serial data signal input/output
35
DAVDD
—
A/D converter power supply pin (+3.3 V)
36
AVRH
—
A/D converter external reference power supply pin (+3.3 V)
37
DAVSS
—
Ground pin
38
QUALITY
I
Noise detect signal input (AEP, UK model only)
39
VSM
I
S-meter voltage detect signal input
40
KEYIN1
I
Key signal input 1
41
KEYIN0
I
Key signal input 0
42
VSS
—
Ground pin
43
RC IN0
I
Rotary commander key signal input
44
SA IN
I
Spectrum analyzer signal input
45
SA CKO
O
Spectrum analyzer clock signal output
46 to 48
NCO
O
Not used. (open)
49
MD0
I
Operation mode setting pin (Connect to VDD.)
50
MD1
I
Operation mode setting pin (Connect to VDD.)
51
MD2
I
Operation mode setting pin (Connect to VSS.)
39
CDX-GT50W/GT500/GT500EE/GT550
Pin No.
Pin Name
I/O
Pin Description
52
KEYACK
I
Key acknowledgment detect signal input
53
TU ATTIN
I
Tuner mute zero cross detect signal input (AEP, UK model only)
54
BUIN
I
Back-up power supply detect signal input
55
NCO
O
Not used. (Open)
56
DAVN
I
RDS data block synchronized detect signal input (AEP, UK model only)
57
NCO
O
Not used. (Open)
58
UNISI
I
SONY bus data signal input
59
UNISO
O
SONY bus data signal output
60
UNISCK
O
SONY bus clock signal output
61
NCO
O
Not used. (Open)
62
NCO
O
Not used. (Open)
63
DOOR IND
O
CD IN LED control signal output H: On
64
SIRCS
I
Remote control signal input
65
NCO
O
Not used. (Open)
66
FSW OUT
O
D/D converter oscillater frequency shift control signal output
L: 300 kHz, H: 400 kHz
67
DISP FLASHW
I
Display IC flash ROM write signal input
68
FLASH W
I
Memory mode select signal input L: Write mode
69
NCO
O
Not used. (Open)
70
DOOR SW
I
Panel open/ close detect signal input H: Panel open
71
RC IN1
I
Rotary commander shift key signal input
72
ACC IN
I
Accessory power supply detect signal input
73
TESTIN
I
Test mode detect signal input
74
TELATT
I
Telephone attenuate detect signal input
75
ILUIN
I
Auto dimmer illumination detect signal input H: Ill off
76
XKEYON
O
A/D converter power supply control signal output
77
RESET
I
CPU reset signal input
78
NCO
O
Not used. (Open)
79
XIN
I
Sub-clock input (32.768 kHz)
80
XOUT
O
Sub-clock output (32.768 kHz)
81
VSS1
—
Ground pin
82
OSC OUT
O
Main-clock output (18.432 MHz)
83
OSC IN
I
Main-clock input (18.432 MHz)
84
VCC3
—
Power supply pin (+3.3 V)
85
SEL2
O
Not used in this set. (Open)
86
SEL5
O
Not used in this set. (Open)
87
BUSON
O
Bus on signal output
88
SEL3
O
Not used in this set. (Open)
89
EJECT OK
O
Eject OK signal output
90 to 92
NCO
O
Not used. (Open)
93
Z-MUTE
I
CD zero cross mute detect signal input
94, 95
NCO
O
Not used. (Open)
96
CYRIL SEL
I
Cyril select signal input L: Cyril off, H: Cyril on
97
SEL4
O
Not used in this set. (Open)
98
CD ON
I
CD mechanism power control request signal input
99
CDM ON
I
CD mechanism deck power control request signal input
100
NCO
O
Not used. (Open)
40
CDX-GT50W/GT500/GT500EE/GT550
SECTION 4
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
4-1. MAIN SECTION
Ref. No.
Part No.
Description
Remark
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories are given in the last of this
parts list.
• Abbreviation
CND: Canadian model
EE
EE
: East European model
MX : Mexican model
CH : Chinese model
CH : Chinese model
R
R
1
X-3384-259-1 LOCK ASSY
2
A-1156-589-A SUB BOARD, COMPLETE (GT500/GT550)
2
A-1158-907-A SUB BOARD, COMPLETE (GT50W/GT500EE)
3
1-831-502-11 CABLE, FLEXIBLE FLAT (22 CORE)
4
3-246-441-01 BUTTON (EJECT)
5
3-260-247-01 CUSHION (SUB PANEL)
6
3-042-244-01 SCREW (T)
7
X-2067-744-1 PANEL ASSY, SUB (FL)
8
X-3384-203-1 GEAR ASSY
9
3-713-786-51 SCREW +P 2X3
10
3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT
11
A-1156-591-A MAIN BOARD, COMPLETE (US,CND)
11
A-1158-884-A MAIN BOARD, COMPLETE (AEP,UK)
11
A-1158-896-A MAIN BOARD, COMPLETE (GT550)
11
A-1158-918-A MAIN BOARD, COMPLETE (GT500EE)
12
2-021-848-01 SHEET (TU), GROUND
13
1-776-207-72 CORD (WITH CONNECTOR) (POWER)
(EXCEPT AEP,UK,EE)
13
1-776-527-71 CORD (WITH CONNECTOR) (ISO) (POWER)
(AEP,UK,EE)
14
1-790-355-54 CORD (WITH CONNECTOR) (RCA)
(SUB OUT (MONO))
15
3-264-798-01 CAP
F901
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TU300
A-3220-961-B TUNER UNIT (TUX-032)
#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)
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
F901
not supplied
not supplied
not supplied
not supplied
TU300
not supplied
#1
#1
#1
#3
#3
#2
#1
MG-611WA-186//Q
A
A
B
B
1
3
2
6
7
5
8
9
6
4
10
13
14
15
12
11
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