Sony CDX-GT270MP / CDX-GT274MP / CDX-GT277ME / CDX-GT320MP Service Manual ▷ View online
CDX-GT270MP/GT274MP/GT277ME/GT320MP
29
Pin No.
Pin Name
I/O
Description
65 to 74
NCO
-
Not used
75
MEC_SELFSW
I
Detection signal input from the CD section (self switch)
76 to 78
NCO
-
Not used
79, 80
DEBUG_1, DEBUG_2
O
Not used
81, 82
RE-IN1, RE-IN0
I
Jog dial pulse input from the rotary encoder
83
RE_ON
O
Jog dial pulse pull-up signal output terminal
84 to 90
NCO
-
Not used
91
KEYACK0
I
Acknowledge signal (wake up signal) input terminal for the rotary remote commander
92
KEYACK1
I
Acknowledge signal (wake up signal) input terminal for the front panel key
93
NCO
-
Not used
94, 95
KEYIN1, KEYIN0
I
Front panel key input terminal
96
AVSS
-
Ground terminal (for A/D converter)
97
RC_IN0
I
Rotary remote commander shift key input terminal
98
AVRH
I
Reference voltage (+3.3V) input terminal (for A/D converter)
99
AVDD
-
Power supply terminal (+3.3V) (for A/D converter)
100
LCD_CE
O
Chip enable signal output to the liquid crystal display driver
30
CDX-GT270MP/GT274MP/GT277ME/GT320MP
SECTION 5
EXPLODED VIEWS
1
X-2581-176-3 PANEL
ASSY,
SUB
2
3-042-244-11 SCREW
(T)
3
X-2547-583-4 LOCK
ASSY
(T)
4
4-286-043-01 SCREW +BTT 2.6X5.2
5
A-1883-572-A MAIN BOARD, COMPLETE (US, CND)
5
A-1883-573-A MAIN BOARD, COMPLETE (AEP, UK)
5
A-1883-574-A MAIN BOARD, COMPLETE (RU, E, MX, AR, KR)
5
A-1888-569-A MAIN BOARD, COMPLETE (EA)
FU1
1-523-227-11 MINI FUSE (BLADE TYPE) (10 A/32 V)
PW1
1-846-032-11 CONNECTION CABLE (ISO) (POWER)
(AEP, RU, UK, AR)
PW1
1-846-036-11 CONNECTION CABLE, AUTOMOBILE (POWER)
(US, CND, E, EA, MX, KR)
TU1
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
• Abbreviation
AR :
AR :
Argentina
model
CND : Canadian model
EA
EA
: Saudi Arabia model
KR
: Korean model
MX
: Mexican model
RU
: Russian model
5-1. MAIN SECTION
Note: When the MAIN board in this unit is replaced, the destination setting is
necessary. Refer to “NOTE THE MAIN BOARD OR SYSTEM CON-
TROLLER (IC501) REPLACING” (page 4).
TROLLER (IC501) REPLACING” (page 4).
front panel section
PW1
B
A
FU1
#3
#3
4
4
2
3
1
2
4
5
TU1
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
MAIN board
#5
#2
#2
#4
CD mechanism section
(MG-101X-188)
(MG-101X-188)
#4 #4 #5
A
C
B
C
D
E
D
F
E
F
#1
#1
#1
#1
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.
Ver. 1.1
31
CDX-GT270MP/GT274MP/GT277ME/GT320MP
5-2. FRONT PANEL SECTION
51
X-2584-661-1 PANEL (SV) ASSY, FRONT (GT270MP)
52
X-2584-667-1 KNOB (VOL) (SV) ASSY
53
4-421-521-01 BUTTON (EJECT) (Z)
54
4-421-520-01 BUTTON (PRESET) (AF/TA, 1, 2, 3, 4, 5, 6, DSPL)
(AEP, RU, UK)
54
4-421-520-11 BUTTON (PRESET) (PTY, 1, 2, 3, 4, 5, 6, DSPL)
(EXCEPT AEP RU, UK)
55
4-421-519-01 BUTTON
(RELEASE)
56
2-639-881-01 SPRING
(RELEASE)
57
4-278-080-01 ILLUMINATOR
(LCD)
58
4-290-177-01 SCREW (+B P-TITE M2)
59
4-421-508-11 PANEL,
BACK
60
X-2187-544-5 CASE ASSY (for FRONT PANEL) (GT320MP)
CCB1
1-780-904-12 CONDUCTIVE BOARD, CONNECTION
FP1
A-1883-578-A PANEL OVERALL ASSY, FRONT
(GT270MP: US, CND)
FP1
A-1883-579-A PANEL OVERALL ASSY, FRONT
(GT270MP: AEP, UK)
FP1
A-1883-580-A PANEL OVERALL ASSY, FRONT (GT274MP)
FP1
A-1883-581-A PANEL OVERALL ASSY, FRONT (GT277ME)
FP1
A-1883-582-A PANEL OVERALL ASSY, FRONT
(GT320MP: EA, KR)
FP1
A-1883-583-A PANEL OVERALL ASSY, FRONT (GT320MP: AR)
FP1
A-1894-035-A PANEL OVERALL ASSY, FRONT (GT320MP: E)
FP1
A-1898-373-A PANEL OVERALL ASSY, FRONT (GT320MP: MX)
IC902
6-600-806-01 IC PNJ4813M01S0 ( )
J901
1-842-936-12 JACK (SMALL TYPE) (DIA. 3.5) (AUX)
LCD901 1-811-434-11
DISPLAY PANEL, LIQUID CRYSTAL
RE901 1-487-023-22 ROTARY
ENCODER
(PUSH ENTER/MENU (VOLUME))
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note: Refer to the servicing notes “NOTE FOR REPLACEMENT OF THE
AUX JACK (J901)” (See page 5), if replacing the Ref. No. J901.
FP1
60
not supplied
not supplied
not supplied
not supplied
not supplied
(KEY board)
(KEY board)
57
J901
G
G
G
not supplied
(for FRONT PANEL)
(for FRONT PANEL)
(GT270MP)
(GT270MP/GT274MP/GT277ME)
(GT320MP)
RE901
53
51
54
52
56
55
(
GT274MP/
GT277ME/GT320MP)
53
54
52
56
55
LCD901
CCB1
IC902
59
58
58
Ver. 1.1
32
CDX-GT270MP/GT277ME/GT320MP
5-3. CD MECHANISM SECTION (MG-101X-188)
101
A-1768-003-B SERVO BOARD, COMPLETE
102
3-352-758-31 SCREW (M1.7X2.5), TOOTHED LOCK
103
2-134-636-71 SCREW
(M1.7X2.5)
104
2-626-869-31 SCREW (M2X3), SERRATION
105
3-686-458-21 SCREW
(P1.4),
TAPPING
CDM1
A-1795-757-A MECHANICAL BLOCK ASSY (X)
0 DAX1
A-1284-705-A DAXEV08
0 OP1
X-2149-672-1 OPTICAL PICK-UP BLOCK (DAX-25A)
(for SERVICE)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
CDM1
103
103
DAX1
OP1
105
104
101
102
102
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