Sony CDX-GT17 / CDX-GT27 Service Manual ▷ View online
6
CDX-GT17/GT27
2
4
5
1
3
L
R
REAR FRONT
AUDIO OUT
BUS
IN
AUDIO OUT
REAR
*
2
from car antenna (aerial)
2
AMP REM
Max. supply current 0.3 A
Fuse (10 A)
Blue/white striped
Red
Yellow
White
Green
Purple
White/black striped
Grey/black striped
Green/black striped
Grey
Left
Right
Left
Right
ANT REM
Black
Blue
Max. supply current 0.1 A
Purple/black striped
*
1
*
1
RCA pin cord (not supplied)
*
2
AUDIO OUT can be switched SUB or
REAR. For details, see the supplied
Operating Instructions.
Operating Instructions.
*
1
*
2
Connection diagram
1
To a metal surface of the car
First connect the black ground (earth) lead, then connect the
yellow and red power supply leads.
yellow and red power supply leads.
2
To the power antenna (aerial) control lead or
power supply lead of antenna (aerial) booster
power supply lead of antenna (aerial) booster
Notes
•
•
It is not necessary to connect this lead if there is no power
antenna (aerial) or antenna (aerial) booster, or with a
manually-operated telescopic antenna (aerial).
manually-operated telescopic antenna (aerial).
•
When your car has a built-in FM/MW/SW antenna (aerial)
in the rear/side glass, see “Notes on the control and power
supply leads.”
supply leads.”
3
To AMP REMOTE IN of an optional power
amplifier
amplifier
This connection is only for amplifiers. Connecting any other
system may damage the unit.
system may damage the unit.
4
To the +12 V power terminal which is
energized in the accessory position of the
ignition switch
energized in the accessory position of the
ignition switch
Notes
•
•
If there is no accessory position, connect to the +12 V
power (battery) terminal which is energized at all times.
power (battery) terminal which is energized at all times.
Be sure to connect the black ground (earth) lead to a
metal surface of the car first.
•
When your car has a built-in FM/MW/SW antenna (aerial)
in the rear/side glass, see “Notes on the control and power
supply leads.”
in the rear/side glass, see “Notes on the control and power
supply leads.”
5
To the +12 V power terminal which is
energized at all times
energized at all times
Be sure to connect the black ground (earth) lead to a metal
surface of the car first.
surface of the car first.
Notes on the control and power supply leads
•
•
The power antenna (aerial) control lead (blue) supplies +12 V
DC when you turn on the tuner.
DC when you turn on the tuner.
•
When your car has built-in FM/MW/SW antenna (aerial) in the
rear/side glass, connect the power antenna (aerial) control
lead (blue) or the accessory power supply lead (red) to the
power terminal of the existing antenna (aerial) booster. For
details, consult your dealer.
rear/side glass, connect the power antenna (aerial) control
lead (blue) or the accessory power supply lead (red) to the
power terminal of the existing antenna (aerial) booster. For
details, consult your dealer.
•
A power antenna (aerial) without a relay box cannot be used
with this unit.
with this unit.
Memory hold connection
When the yellow power supply lead is connected, power will
always be supplied to the memory circuit even when the ignition
switch is turned off.
When the yellow power supply lead is connected, power will
always be supplied to the memory circuit even when the ignition
switch is turned off.
Notes on speaker connection
•
•
Before connecting the speakers, turn the unit off.
•
Use speakers with an impedance of 4 to 8 ohms, and with
adequate power handling capacities to avoid its damage.
adequate power handling capacities to avoid its damage.
•
Do not connect the speaker terminals to the car chassis, or
connect the terminals of the right speakers with those of the
left speaker.
connect the terminals of the right speakers with those of the
left speaker.
•
Do not connect the ground (earth) lead of this unit to the
negative (–) terminal of the speaker.
negative (–) terminal of the speaker.
•
Do not attempt to connect the speakers in parallel.
•
Connect only passive speakers. Connecting active speakers
(with built-in amplifiers) to the speaker terminals may damage
the unit.
(with built-in amplifiers) to the speaker terminals may damage
the unit.
•
To avoid a malfunction, do not use the built-in speaker leads
installed in your car if the unit shares a common negative (–)
lead for the right and left speakers.
installed in your car if the unit shares a common negative (–)
lead for the right and left speakers.
•
Do not connect the unit’s speaker leads to each other.
Note on connection
If speaker and amplifier are not connected correctly, “FAILURE”
appears in the display. In this case, make sure the speaker and
amplifier are connected correctly.
If speaker and amplifier are not connected correctly, “FAILURE”
appears in the display. In this case, make sure the speaker and
amplifier are connected correctly.
7
CDX-GT17/GT27
SECTION 3
DISASSEMBLY
Note:
This set can be disassemble according to the following sequence.
3-1.
SUB PANEL ASSY
(Page 8)
(Page 8)
3-2.
CD MECHANISM BLOCK
(Page 8)
(Page 8)
SET
3-3.
MAIN BOARD
(Page 9)
(Page 9)
3-5.
CHASSIS (T) SUB ASSY
(Page 10)
(Page 10)
3-6.
ROLLER ARM ASSY
(Page 10)
(Page 10)
3-7.
CHASSIS (OP) ASSY
(Page 11)
(Page 11)
3-8.
CHUCKING ARM SUB ASSY
(Page 11)
(Page 11)
3-9.
SLED MOTOR ASSY
(Page 12)
(Page 12)
3-10. OPTICAL PICK-UP SECTION
(Page 13)
3-11. OPTICAL PICK-UP
(Page 13)
3-4.
SERVO BOARD
(Page 9)
(Page 9)
8
CDX-GT17/GT27
3-2. CD MECHANISM BLOCK
Note:
Follow the disassembly procedure in the numerical order given.
3-1. SUB PANEL ASSY
2
two claws
3
two claws
4
sub panel assy
1
two screws
(+PTT 2.6
×
6)
4
CNP301
3
1
screw
(+PTT 2.6
(+PTT 2.6
×
6)
2
screw
(+PTT 2.6
(+PTT 2.6
×
6)
5
two screws
(+PTT 2.6
(+PTT 2.6
×
4)
6
bracket (CD)
7
CD mechanism block
9
CDX-GT17/GT27
3-4. SERVO BOARD
3-3. MAIN BOARD
9
MAIN board
insulating sheet
3
2
two screws
(+PTT 2.6
(+PTT 2.6
×
8)
1
three ground point screws
(+PTT 2.6
(+PTT 2.6
×
6)
7
screw
(+PTT 2.6
(+PTT 2.6
×
8)
8
heat sink
4
two screws
(+P 2.6
(+P 2.6
×
8)
6
screw
(+P 2.6
(+P 2.6
×
10)
5
two screws
(+PTT 2.6
(+PTT 2.6
×
10)
5
SERVO board
SERVO board
claw
claw
3
toothed lock screw
(M 1.7
(M 1.7
×
2.5)
2
toothed lock screw
(M 1.7
(M 1.7
×
2.5)
1
Remove the eleven solders.
GRY
YEL
BLE
ORG
RED
BLK
RED
WHT
BLK
RED
WHT
4
optical pick-up (16 core)
(CN1)
(CN1)
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