Sony CDXGT-72-W, CDXGT-720, CDXGT-770 Service manual

CDX-GT72W/GT720/GT770

SERVICE MANUAL

Ver. 1.0 2007.12

(Photo: CDX-GT720)

• The tuner and CD sections have no adjustments.

AUDIO POWER SPECIFICATIONS (CDX-GT72W/GT720)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION

23.2 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than 5% total harmonic distortion.

SPECIFICATIONS

CD Player section

Signal-to-noise ratio: 120 dB Frequency response: 10 – 20,000 Hz Wow and ﬂ utter: Below measurable limit

Tuner section

Tuning range:

CDX-GT72W/GT720:

87.5 – 107.9 MHz CDX-GT770:

87.5 – 108.0 MHz (at 50 kHz step)

87.5 – 107.9 MHz (at 200 kHz step)

FM tuning interval:

CDX-GT770: 50 kHz/200 kHz switchable

Antenna (aerial) terminal:

External antenna (aerial) connector

Intermediate frequency: 10.7 MHz/450 kHz Usable sensitivity: 9 dBf Selectivity: 75 dB at 400 kHz Signal-to-noise ratio:

67 dB (stereo), 69 dB (mono) Harmonic distortion at 1 kHz:

0.5 % (stereo), 0.3 % (mono)

Separation: 35 dB at 1 kHz Frequency response: 30 – 15,000 Hz

Tuning range: CDX-GT72W/GT720: 530 – 1,710 kHz CDX-GT770: 531 – 1,602 kHz (at 9 kHz step) 530 – 1,710 kHz (at 10 kHz step)

AM tuning interval:

CDX-GT770: 9 kHz/10 kHz switchable

Antenna (aerial) terminal:

External antenna (aerial) connector

Intermediate frequency: 10.7 MHz/450 kHz Sensitivity: 30 μV

Power ampliﬁ er section

Outputs: Speaker outputs (sure seal connectors) Speaker impedance: 4 – 8 ohms Maximum power output: 52 W × 4 (at 4 ohms)

General

Outputs:

Audio outputs terminal (front/rear) Subwoofer output terminal (mono) Power antenna (aerial) relay control terminal Power ampliﬁ er control terminal

US Model

CDX-GT72W/GT720

E Model

CDX-GT770

Model Name Using Similar Mechanism NEW CD Drive Mechanism Type MG-101FC-188//Q Optical Pick-up Name DAX-25A

Inputs:

Telephone ATT control terminal Illumination control terminal BUS control input terminal BUS audio input terminal Remote controller input terminal Antenna (aerial) input terminal AUX input jack (stereo mini jack)

Tone controls:

Low: ±10 dB at 60 Hz (XPLOD) Mid: ±10 dB at 1 kHz (XPLOD) High: ±10 dB at 10 kHz (XPLOD) Power requirements: 12 V DC car battery (negative ground (earth)) Dimensions: Approx. 178 × 50 × 190 mm

1/8 × 2 × 7 1/2 in.) (w/h/d)

(7 Mounting dimensions: Approx. 182 × 53 × 163 mm

1/4 × 2 1/8 × 6 1/2 in.) (w/h/d)

Mass: Approx. 1.6 kg (3 lb 9 oz) Supplied accessories:

Card remote commander: RM-X152 (CDX-GT72W/GT720) RM-X156 (CDX-GT770) Parts for installation and connections (1 set)

Design and speciﬁ cations are subject to change without notice.

9-887-940-01

2007L04-1

2007.12

FM/AM COMPACT DISC PLAYER

Sony Corporation

Audio Business Group Published by Sony Techno Create Corporation

CDX-GT72W/GT720/GT770

SERVICE NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The ﬂ exible board is easily damaged and should be handled with care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on the disc reﬂ ective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

TEST DISCS

Please use the following test discs for the check on the CD section.

CAUTION

Use of controls or adjustments or performance of procedures other than those speciﬁ ed herein may result in hazardous radiation exposure.

If the optical pick-up block is defective, please replace the whole optical pick-up block. Never turn the semi-ﬁ xed resistor located at the side of optical pick-up block.

optical pick-up

YDES-18 (Part No. 3-702-101-01) PATD-012 (Part No. 4-225-203-01)

SAFETY-RELATED COMPONET WARNING!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

semi-fixed resistor

ATTENTION AU COMPOSANT AYANT RAPPORT

LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

À LA SÉCURITÉ!

CDX-GT72W/GT720/GT770

This compact disc player is classiﬁ ed as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the exterior.

CDX-GT770:

This label is located on the bottom of the chassis.

• CD playback

You can play CD-DA (also containing CD TEXT), CD-R/CDRW (MP3/WMA/AAC ﬁ les).

Type of discs Label on the disc

CD-DA

MP3

WMA

AAC

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher than ordinary solder.

Ordinary soldering irons can be used but the iron tip has to be

applied to the solder joint for a slightly longer time.

Soldering irons using a temperature regulator should be set to

about 350 °C. Caution: The printed pattern (copper foil) may peel away if the

heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscous (sticky, less prone to ﬂ ow)

than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may

also be added to ordinary solder.

1. SERVICE NOTE ..................................................... 4

2. GENERAL

Location of Controls ....................................................... 5

Connections .................................................................... 6

3. DISASSEMBLY

3-1. Base Panel Assy .............................................................. 13

3-2. Sub Panel Assy ............................................................... 13

3-3. CD Mechanism Block ..................................................... 14

3-4. Driving Section (DB-F07) .............................................. 14

3-5. Main Board ..................................................................... 15

3-6. Servo Board .................................................................... 15

3-7. Chassis (T) Sub Assy ...................................................... 16

3-8. Roller Arm Assy .............................................................. 16

3-9. Chassis (OP) Assy ........................................................... 17

3-10. Chucking Arm Sub Assy ................................................. 17

3-11. Sled Motor Assy .............................................................. 18

3-12. Optical Pick-up Section .................................................. 19

3-13. Optical Pick-up ............................................................... 19

4. DIAGNOSIS FUNCTION ..................................... 20

5. DIAGRAMS

5-1. Block Diagram –Main Section– ..................................... 23

5-2. Block Diagram –Display Section– ................................. 24

5-3. Printed Wiring Boards –Main Section (1/2)– ................. 26

5-4. Printed Wiring Board –Main Section (2/2)– ................... 27

5-5. Schematic Diagram –Main Section (1/4)– ...................... 28

5-6. Schematic Diagram –Main Section (2/4)– ...................... 29

5-7. Schematic Diagram –Main Section (3/4)– ...................... 30

5-8. Schematic Diagram –Main Section (4/4)– ...................... 31

5-9. Printed Wiring Board –Base Panel Section- ................... 32

5-10. Schematic Diagram –Base Panel Section- ...................... 33

5-11. Printed Wiring Boards –Display Section– ...................... 34

5-12. Schematic Diagram –Display Section– .......................... 35

6. EXPLODED VIEWS

6-1. Main Section ................................................................... 43

6-2. Main Board Section ....................................................... 44

6-3. Front Section ................................................................... 45

6-4. CD Mechanism Section (MG-101FC-188//Q) ............... 46

7. ELECTRICAL PARTS LIST .............................. 47

CDX-GT72W/GT720/GT770

SECTION 1

SERVICE NOTE

EXTENSION CABLE AND SERVICE POSITION

When repairing or servicing this set, connect the jig (extension cable) as shown below.

• Connect the MAIN board (CNP301) and the SERVO board (CN2) with the extension cable (Part No. J-2502-076-1).

MAIN BOARD CNP301

NOTE FOR REPLACEMENT OF THE SERVO BOARD

When repairing, the complete SERVO board (A-1177-362-A) should be replaced since any parts in the SERVO board cannot be repaired.

J-2502-076-1

NOTE FOR THE OPENING OF THE FRONT PANEL

In this set, the front panel is lowered to below the bottom face when it is opened. When servicing the set, place it on a stand having a height of about 2 cm.

stand

SERVO BOARD CN2

• LOCATION OF CONTROLS

R

RGR

R

RGR

• CDX-GT72W

Location of controls and basic operations

Main unit

  

MODE

LIST/

SHUF

CAT

BACK

DSPL

SOURCE



Card remote commander RM-X152

OFF



SOURCE SOUND

RK RL



ENTER

DSPL

REP SHUF

132

465

VOL

PUSH ENTER / SOUND / MENU

This section contains instructions on the location of controls and basic operations. For details, see the respective pages. For optional device (CD/MD changer, etc.)

X

ATT

MODE

LIST/ CAT

–

SCRL

PAUSE

+ –

operation, see “Using optional equipment” on page 11.

The corresponding buttons on the card remote commander control the same functions as those



on the unit.

" LIST/CAT*

Push (LIST/CAT* Push (BACK) down: return to the previous display.

# MODEbutton page 8

Toselect the radio band (FM/AM)*

$ SHUF(shuffle) button page 8 % Multiway enco der

Rotate to: Adjust the volume/select a menu item. Push up/down/left/right to: Select a menu item. Press to: Enter sound setting/apply a setting. Press and hold to: Enter menu.

/BACK control

) up: to list up (Radio).

CDX-GT72W/GT720/GT770

SECTION 2

GENERAL

CD: Push up/down to: –Skipalbums(push)* –Skip albums continuously (push and

hold)* Push left/right to: –Skip tracks (push).

SCRL

OFF

AUX

–Skip tracks continuously(push, then push

again within about 2 seconds and hold). –Reverse/fast-forward a track (push and

hold). Radio: Push up/down to: –Receivestored station. Push left/right to: –Tune in stations automatically (push). –Find a station manually(push and hold).

& Discslot page 5

To insert the disc.

' Display window ( ;(eject)/ANGLE button page5

To eject the disc/slide down the front panel (press); a ngle the front panel in 3 positions (press and hold).

) (front panel release) button page 5 * SOURCEbutton

To power on; change the source (Radio/CD/ AUX)*

+ DSPL(display) button page 8

To change display items.

, RESETbutton (Location behind the front

panel) page 4

- SCRL(scroll) button

To scroll t he d is play item.

. OFFbutton

To pow er off; s top the source.

/ AUX input jack page 11

To connect a portable audio device.

0 Receptorfor the card remote

commander

This section is extracted from instruction manual.

The following buttons on the card remote commander have also different buttons/functions from the unit. Remove the insulation film before use (page 4).

RI MENU button

To enter menu.

RK ENTER button

Toapply a setting.

RL  / (SEEK –/+) buttons

The same as pushing the multi way encoder left/right on the unit. Setup,sound setting, etc., can be operated by .

RM VOL (volume) +/– button

To adjust vo lu me .

X ATT (attenuate) button

Toattenuate the sound. To cancel, press again.

XB SOUND button

To enter sound setting.

XT LIST/CAT*

XE ./N (+/–) buttons

XG Number buttons

*1 When the SAT tuner is connected. *2 In the case of a CD/MD changer, HD radio tuner or

*3 When an MP3/WMA/AAC is played.

Note

If the unit is turned off and the display disappears, it cannotbe operated with the card remote commander unless4063$& on the unit is pressed, or a disc is inserted to activate the unit first.

button

To list up.

The same as pushing the multi way encoder up/downon the unit. Setup,sound setting, etc., can be operated by .N.

CD:

: REP page 8 : SHUF page 8 : PAU SE

To pause playback. To cancel, press again.

Radio: Toreceive stored stations (press); store stations (press and hold).

SATtuner being connected; when 4063$& is pressed, the connected device (“MD,”“HD,”“XM” or “SR”) will appear in the display, depending on which device is connected. Furthermore, if .0%& is pressed, you can switch the changer, HD radio tuner band or SATtuner band.

• CDX-GT720

Location of controls and basic operations

Main unit

MODE

LIST/

SHUF

CAT

BACK

DSPL

SOURCE



Card remote commander RM-X152

OFF



SOURCE SOUND

RK RL



ENTER

DSPL

REP SHUF

132

465

VOL

PUSH ENTER / SOUND / MENU

X

ATT

MODE



LIST/ CAT

–

+ –

XT XE

SCRL

PAUSE

  

SCRL

OFF

AUX

This section contains instructions on the location of controls and basic operations. For details, see the respective pages. For optional device (CD/MD changer, etc.) operation, see “Using optional equipment” on page 11. The corresponding buttons on the card remote commander control the same functions as those on the unit.

" LIST/CAT*

Push (LIST/CAT* Push (BACK) down: return to the previous display.

# MODEbutton page 8

To select the radio band (FM/AM)*

$ SHUF(shuffle) button page 8 % Multiway encoder

Rotate to: Adjust the volume/select a menu item. Push up/down/left/right to: Select a menu item. Press to: Enter sound setting/apply a setting. Press and hold to: Enter menu.

/BACK control

) up: to list up (Radio).

CD: Push up/down to: –Skipalbums(push)* –Skip albums continuously (push and

hold)* Push left/right to: –Skip tracks (push). –Skip tracks continuously(push, then push

again within about 2 seconds and hold). –Reverse/fast-forward a track (push and

hold). Radio: Push up/down to: –Receivestored station. Push left/right to:

–Tune in stations automatically (push). –Find a station manually(push and hold).

& Discslot page 5

To insert the disc.

' Display window ( ;(eject)/ANGLE button page5

To eject the disc/slide down the front panel (press); a ngle the front panel in 3 positions (press and hold).

) (front panel release) button page 5 * SOURCEbutton

To power on; change the source (Radio/CD/ AUX)*

+ DSPL(display) button page 8

To change display items.

, RESETbutton (Location behind the front

panel) page 4

- SCRL(scroll) button

To scroll t he d is play item.

. OFFbutton

To pow er off; s top the source.

/ AUX input jack page 11

To connect a portable audio device.

0 Receptorfor the card remote

commander

The following buttons on the card remote commander have also different buttons/functions from the unit. Remove the insulation film before use (page 4).

RI MENU button

To enter menu.

RK ENTER button

Toapply a setting.

RL  / (SEEK –/+) buttons

The same as pushing the multi way encoder left/right on the unit. Setup,sound setting, etc., can be operated by .

RM VOL (volume) +/– button

To adjust vo lu me .

X ATT (attenuate) button

Toattenuate the sound. To cancel, press again.

XB SOUND button

To enter sound setting.

XT LIST/CAT*

XE ./N (+/–) buttons

XG Number buttons

*1 When the SAT tuner is connected. *2 In the case of a CD/MD changer, HD radio tuner or

*3 When an MP3/WMA/AAC is played.

Note

If the unit is turned off and the display disappears, it cannotbe operated with the card remote commander unless4063$& on the unit is pressed, or a disc is inserted to activate the unit first.

button

To list up.

The same as pushing the multi way encoder up/downon the unit. Setup,sound setting, etc., can be operated by .N.

CD:

: REP page 8 : SHUF page 8 : PAU SE

To pause playback. To cancel, press again.

Radio: Toreceive stored stations (press); store stations (press and hold).

CDX-GT72W/GT720/GT770

R

RHR

• CDX-GT770

Location of controls and basic operations

Main unit

  

MODE

SHUF

LIST

BACK

DSPL

SOURCE



Card remote commander RM-X156

OFF



SOURCE SOUND

RL RM



X

ENTER

DSPL

REP SHUF

132

465

VOL

PUSH ENTER / SOUND / MENU

This section contains instructions on the location of controls and basic operations. For details, see the respective pages. For optional device (CD/MD changer, etc.)

ATT

MODE

LIST

–

SCRL

PAUSE

+ –

operation, see “Using optional equipment” on page 11.

The corresponding buttons on the card remote commander control the same functions as those



on the unit.

" LIST/BACK control

Push (LIST) up: to list up (Radio). Push (BACK) down: return to the previous display.

# MODEbutton page 8

To select the radio band (FM/AM)*

$ SHUF(shuffle) button page 8 % Multiway encoder

Rotate to: Adjust the volume/select a menu item. Push up/down/left/right to: Select a menu item. Press to: Enter sound setting/apply a setting. Press and hold to: Enter menu.

ERG

CD: Push up/down to: –Skip albums (push)* –Skip albums continuously (push and

hold)* Push left/right to: –Skip tracks (push).

SCRL

OFF

AUX

–Skip tracks continuously(push, then push

again within about 2 seconds and hold). –Reverse/fast-forward a track (push and

hold). Radio: Push up/down to: –Receivestored station. Push left/right to: –Tune in stations automatically (push). –Find a station manually(push and hold).

& Discslot page 5

To insert the disc.

' Display window ( ;(eject)/ANGLE button page5

To eject the disc/slide down the front panel (press); a ngle the front panel in 3 positions (press and hold).

) (front panel release) button page 5 * SOURCEbutton

Topower on; change the source (Radio/CD/ AUX)*

+ DSPL(display) button page 8

To change display items.

, RESETbutton (Location behind the front

panel) page 4

- Frequency select switch (located on the

bottom of the unit) See “Frequency select switch” in the supplied installation/connections manual.

. SCRL(scroll) button

Toscroll the display item.

/ OFFbutton

To pow er off; s top the source.

0 AUX input jack page 11

To connect a portable audio device.

1 Receptorfor the card remote

commander

The following buttons on the card remote commander have also different buttons/functions from the unit. Remove the insulation film before use (page 4).

RK MENU button

To enter menu.

RL ENTER button

Toapply a setting.

RM  / (SEEK –/+) buttons

The same as pushing the multi way encoder left/right on the unit. Setup,sound setting, etc., can be operated by .

X VOL (volume) +/– button

Toadjust volume.

XB ATT (attenuate) button

To attenuate the sound. Tocancel, press again.

XT SOUND button

To enter sound setting.

XE LIST button

To list up.

XG ./N (+/–) buttons

The same as pushing the multi way encoder up/down on the unit. Setup,sound setting, etc., can be operated by .N.

XH Number buttons

CD:

: REP page 8 : SHUF page 8 : PAU SE

To pause playback. To cancel, press again.

Radio: Toreceive stored stations (press); store stations (press and hold).

*1 In the case of a CD/MD changer being connected;

when 4063$& is pressed, the connected device (“MD”) will appear in the display, depending on which device is connected. Furthermore, if .0%& is pressed, you can switch the changer.

*2 When an MP3/WMA/AACis played.

Note

If the unit is turned off and the display disappears, it cannot be operated with the card remote commander unless4063$& on the unit is pressed, or a disc is inserted to activate the unit first.

• CONNECTIONS

• CDX-GT72W

SUB OUT (MONO)

AUDIO OUT

FRONT

AUDIO OUT

REAR

BUS AUDIO IN

BUS CONTROL IN

BUS AUDIO IN

Connection example

Notes (-A)

• Be sure to connect the ground (earth) lead before connecting the ampliﬁer.

• The alarm will only sound if the built-in ampliﬁer is used.

Tip (-B-

For connecting two or more CD/MD changers, the source selector XA-C40 (not supplied) is necessary.

)

Ejemplo de conexiones

Notas (-A)

• Asegúrese de conectar primero el cable de conexión a masa antes de realizar la conexión del ampliﬁcador.

• La alarma sonará únicamente si se utiliza el ampliﬁcador incorporado.

Sugerencia (-B-

Si desea conectar dos o más cambiadores de CD/MD, necesitará el selector de fuente XA-C40 (no suministrado).

)

Source selector*

Selector de fuente*

XA-C40

BUS CONTROL IN

* not supplied

no suministrado

CDX-GT72W/GT720/GT770

Source selector

(not supplied) Selector de fuente (no suministrado)

XA-C40

Supplied with the CD/MD changer Suministrado con el cambiador de CD/MD

SUB OUT (MONO)

from car antenna (aerial) desde la antena del automóvil

AMP REM



Max. supply current 0.3 A Corriente máx. de alimentación de 0,3 A

Left Izquierdo

Right Derecho

Left Izquierdo

Right Derecho

Connection diagram

 To a metal surface of the car

First connect the black ground (earth) lead, then connect the yellow and red power supply leads.

 To the power antenna (aerial) control lead or

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).

• Whenyour car has a built-in FM/AM antenna (aerial) in the rear/side glass, see “Notes on the control and power supply leads.”

 To AMP REMOTE IN of an optional power

ampliﬁer

This connection is only for ampliﬁers. Connecting any other system may damage the unit.

 To the interface cable of a car telephone  To a car’s illumination signal

Be sure to connect the black ground (earth) lead to a metal surface of the car ﬁrst.

 To the +12V power terminal which is

energized in the accessory position of the ignition switch

Notes

• If there is no accessory position, connect to the +12V 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.

• Whenyour car has a built-in FM/AM antenna (aerial) in the rear/side glass, see “Notes on the control and power supply leads.”

 To the +12V power terminal which is

energized at all times

Be sure to connect the black ground (earth) lead to a metal surface of the car ﬁrst.

BUS AUDIO IN

AUDIO

AUDIO OUT

REAR

Blue/white striped Con rayas azules y blancas

White Blanco

White/black striped Con rayas blancas y negras

Gray Gris

Gray/black striped Con rayas grises y negras

Green Verde

Green/black striped Con rayas verdes y negras

Purple Morado

Purple/black striped Con rayas moradas y negras

Notes on the control and power supply leads

• The power antenna (aerial) control lead (blue) supplies +12V DC when you turn on the tuner.

• Whenyour car has built-in FM/AM 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.

• A power antenna (aerial) without a relay box cannot be used 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.

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.

• Do not connect the speaker terminals to the car chassis, or 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.

• 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.

•

Toavoid a malfunction, do not use the built-in speaker leads installed in y

our car if the unit shares a common negativ

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.

AUDIO OUT

FRONT

AUDIO

BUS

OUT

REAR

FRONT

Fuse (10 A) Fusible (10 A)



REMOTE

BUS

CONTROL IN

Black Negro

Blue Azul

Corriente máx. de alimentación de 0,1 A

Light blue Azul celeste

Orange/white striped Con rayas naranjas y blancas

Red Rojo

Yellow Amarillo

Diagrama de conexión

 A una superﬁcie metálica del automóvil

Conecte primero el cable de conexión a masa negro, y después los cables amarillo y rojo de entrada de alimentación.

 Al cable de control de la antena motorizada

o al cable de fuente de alimentación del ampliﬁcador de señal de la antena

Notas

• Si no se dispone de antena motorizada ni de ampliﬁcador de antena, o se utiliza una antena telescópica accionada manualmente, no será necesario conectar este cable.

• Si el automóvil incorpora una antena de FM/AM en el cristal trasero o lateral, consulte “Notas sobre los cables de control y de fuente de alimentación”.

 A AMP REMOTE IN de un ampliﬁcador de

potencia opcional

Esta conexión es sólo para ampliﬁcadores. La conexión de cualquier otro sistema puede dañar la unidad.

 Al cable de interfaz de un teléfono para

automóvil

 A una señal de iluminación del automóvil

e (–)

Asegúrese de conectar primero el cable de conexión a masa negro a una superﬁcie metálica del automóvil.

 Al terminal de alimentación de +12V que

recibe energía en la posición de accesorio del interruptor de la llave de encendido

Notas

• Si no hay posición de accesorio, conéctelo al terminal de alimentación (batería) de +12 V que recibe energía sin interrupción. Asegúrese de conectar primero el cable de conexión a masa negro a una superﬁcie metálica del automóvil.

• Si el automóvil incorpora una antena de FM/AM en el cristal trasero o lateral, consulte “Notas sobre los cables de control y de fuente de alimentación”.

 Al terminal de alimentación de +12V que

recibe energía sin interrupción

Asegúrese de conectar primero el cable de conexión a masa negro a una superﬁcie metálica del automóvil.

Max. supply current 0.1 A

ANT REM

ATT

ILLUMINATION

RCA pin cord (not supplied)

Supplied with XA-C40

Insert with the cord upwards.

Cable con terminales RCA (no suministrado)

Suministrado con el XA-C40

Insertar con el cable hacia arriba.













Notas sobre los cables de control y de fuente de alimentación

• El cable de control de la antena motorizada (azul) suministrará cc de + 12 V cuando conecte la alimentación del sintonizador.

• Si el automóvil dispone de una antena de FM/AM incorporada en el cristal trasero o lateral, conecte el cable de control de antena motorizada (azul) o el cable de entrada de alimentación auxiliar (rojo) al terminal de alimentación del ampliﬁcador de antena existente. Para obtener más información, consulte a su distribuidor.

• Con esta unidad no es posible utilizar una antena motorizada sin caja de relé.

Conexión para protección de la memoria

Si conecta el cable de entrada de alimentación amarillo, el circuito de la memoria recibirá siempre alimentación, aunque apague el interruptor de encendido.

Notas sobre la conexión de los altavoces

• Antes de conectar los altavoces, desconecte la alimentación de la unidad.

• Utilice altavoces con una impedancia de 4 a 8 Ω con la capacidad de potencia adecuada para evitar que se dañen.

• No conecte los terminales de altavoz al chasis del automóvil, ni conecte los terminales del altavoz derecho con los del izquierdo.

• No conecte el cable de conexión a masa de esta unidad al terminal negativo (–) del altavoz.

• No intente conectar los altavoces en paralelo.

• Conecte solamente altavoces pasivos. Si conecta altavoces

activos (con ampliﬁcadores incorporados) a los terminales de altavoz, puede dañar la unidad.

• Paraevitar fallas de funcionamiento, no utilice los cables de altavoz incorporados instalados en el automóvil si la unidad comparte un cable negativo común (–) para los altavoces derecho e izquierdo.

• No conecte los cables de altavoz de la unidad entre sí.

Nota sobre la conexión

Si el altavoz y el ampliﬁcador no están conectados correctamente, aparecerá “FAILURE” en la pantalla. Si es así, compruebe la conexión del altavoz y el ampliﬁcador.

CDX-GT72W/GT720/GT770

• CDX-GT720

AUDIO OUT

FRONT

Connection example

Notes (-A)

• Be sure to connect the ground (earth) lead before connecting the ampliﬁer.

• The alarm will only sound if the built-in ampliﬁer is used.

Tip (-B-

For connecting two or more CD/MD changers, the source selector XA-C40 (not supplied) is necessary.

)

SUB OUT (MONO)

Source selector*

Sélecteur de source*

BUS AUDIO IN

BUS CONTROL IN

XA-C40

AUDIO OUT

REAR

BUS AUDIO IN

BUS CONTROL IN

* not supplied

non fourni

Exemple de raccordement

Remarques (-A)

• Raccordez d’abord le câble de mise à la masse avant de raccorder l’ampliﬁcateur.

• L’alarme est émise uniquement lorsque l’ampliﬁcateur intégré est utilisé.

Conseil (-B-

Dans le cas du raccordement de deux changeurs de CD/MD ou plus, le sélecteur de source XA-C40 (non fourni) est requis.

)

CDX-GT72W/GT720/GT770

Source selector

(not supplied)

Sélecteur de source

(non fourni)

XA-C40

Supplied with the CD/MD changer Fourni avec le changeur de CD/MD

SUB OUT (MONO)

from car antenna (aerial) à partir de l’antenne de la voiture

AMP REM



Max. supply current 0.3 A Courant max. fourni 0,3 A

Left Gauche

Right Droit

Left Gauche

Right Droit

Connection diagram

 To a metal surface of the car

First connect the black ground (earth) lead, then connect the yellow and red power supply leads.

 To the power antenna (aerial) control lead or

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).

• Whenyour car has a built-in FM/AM antenna (aerial) in the rear/side glass, see “Notes on the control and power supply leads.”

 To AMP REMOTE IN of an optional power

ampliﬁer

This connection is only for ampliﬁers. Connecting any other system may damage the unit.

 To the interface cable of a car telephone  To a car’s illumination signal

Be sure to connect the black ground (earth) lead to a metal surface of the car ﬁrst.

 To the +12V power terminal which is

energized in the accessory position of the ignition switch

Notes

• Whenyour car has a built-in FM/AM antenna (aerial) in the rear/side glass, see “Notes on the control and power supply leads.”

 To the +12V power terminal which is

energized at all times

Be sure to connect the black ground (earth) lead to a metal surface of the car ﬁrst.

BUS AUDIO IN

AUDIO

AUDIO OUT

REAR

Blue/white striped Rayé bleu/blanc

White Blanc

White/black striped Rayé blanc/noir

Gray Gris

Gray/black striped Rayé gris/noir

Green Vert

Green/black striped Rayé vert/noir

Purple Mauve

Purple/black striped Rayé mauve/noir

Notes on the control and power supply leads

• The power antenna (aerial) control lead (blue) supplies +12V DC when you turn on the tuner.

• A power antenna (aerial) without a relay box cannot be used 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.

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.

• Do not connect the speaker terminals to the car chassis, or 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.

• 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.

• T

avoid a malfunction, do not use the built-in speaker leads

o 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.

AUDIO OUT

FRONT

AUDIO

BUS

OUT

REAR

FRONT

Fuse (10 A) Fusible (10 A)



REMOTE

BUS

CONTROL IN

Black Noir

Blue Bleu

Light blue Bleu ciel

Orange/white striped Rayé orange/blanc

Red Rouge

Yellow Jaune

Max. supply current 0.1 A Courant max. fourni 0,1 A

ILLUMINATION

Schéma de raccordement

 Vers un point métallique de la voiture

Branchez d’abord le câble de mise à la masse noir et, ensuite, les câbles d’alimentation jaune et rouge.

 Vers le câble de commande d’antenne

électrique ou le câble d’alimentation de l’ampliﬁcateur d’antenne

Remarques

• Il n’est pas nécessaire de raccorder ce câble s’il n’y a pas d’antenne électrique ni d’ampliﬁcateur d’antenne, ou avec une antenne télescopique manuelle.

• Sivotre voiture est équipée d’une antenne FM/AM intégrée dans la vitre arrière/latérale, voir « Remarques sur les câbles de commande et d’alimentation ».

 Vers AMP REMOTE IN de l’ampliﬁcateur de

puissance en option

Ce raccordement s’applique uniquement aux ampliﬁcateurs. Le branchement de tout autre système risque d’endommager l’appareil.

 Vers le cordon de liaison d’un téléphone de

voiture

 Vers le connecteur du signal d’éclairage de

la voiture

Raccordez d’abord le câble de mise à la masse noir à un point métallique du véhicule.

 Vers la borne d’alimentation +12V qui est

alimentée quand la clé de contact est sur la position accessoires

Remarques

• S’il n’y a pas de position accessoires,raccordez la borne d’alimentation (batterie) +12 V qui est alimentée en permanence. Raccordez d’abord le câble de mise à la masse noir à un point métallique du véhicule.

• Sivotre voiture est équipée d’une antenne FM/AM intégrée dans la vitre arrière/latérale, voir « Remarques sur les câbles de commande et d’alimentation ».

 Vers la borne d’alimentation +12V qui est

alimentée en permanence

Raccordez d’abord le câble de mise à la masse noir à un point métallique du véhicule.

ANT REM

ATT

RCA pin cord (not supplied)

Supplied with XA-C40

Insert with the cord upwards.

Cordon à broche RCA (non fourni)

Fourni avec le XA-C40

Insérez avec le câble vers le haut.













Remarques sur les câbles de commande et d’alimentation

• Le câble de commande d’antenne électrique (bleu)fournit une alimentation de + 12 V CC lorsque vous mettez la radio sous tension.

• Lorsquevotre voiture est équipée d’une antenne FM/AM intégrée dans la vitre arrière/latérale, raccordez le câble de commande d’antenne (bleu) ou le câble d’alimentation d’alimentation des accessoires (rouge) à la borne d’alimentation de l’ampliﬁcateur d’antenne existant.Pour plus de détails, consultez votre détaillant.

• Une antenne électrique sans boîtier de relais ne peut pas être utilisée avec cet appareil.

Raccordement pour la conservation de la mémoire

Lorsque le câble d’alimentation jaune est raccordé, le circuit de la mémoire est alimenté en permanence même si la clé de contact est sur la position d’arrêt.

Remarques sur le raccordement des haut-parleurs

• Avant de raccorder les haut-parleurs, mettez l’appareil hors tension.

• Utilisez des haut-parleursayant une impédance de 4 à 8 ohms avec une capacité électrique adéquate pour éviter de les endommager.

• Neraccordez pas les bornes du système de haut-parleurs au châssis de la voiture et ne raccordez pas les bornes des hautparleurs droit à celles du haut-parleur gauche.

• Neraccordez pas le câble de mise à la masse de cet appareil à la borne négative (–) du haut-parleur.

• N’essayez pas de raccorder les haut-parleurs en parallèle.

• Raccordez uniquement des haut-parleurs passifs. Le

raccordement de haut-parleurs actifs (avec ampliﬁcateurs intégrés) aux bornes des haut-parleurs peut endommager l’appareil.

• Pour éviter tout problème de fonctionnement, n’utilisez pas les câbles des haut-parleurs intégrés installés dans votre voiture si l’appareil possède un câble négatif commun (–) pour les hautparleurs droit et gauche.

• Neraccordez pas entre eux les cordons des haut-parleurs de l’appareil.

Remarque sur le raccordement

Si les haut-parleurs et l’ampliﬁcateur ne sont pas raccordés correctement, le message « FAILURE » s’afﬁche. Dans ce cas, assurez-vous que les haut-parleurs et l’ampliﬁcateur sont bien raccordés.

CDX-GT72W/GT720/GT770

• CDX-GT770

AUDIO OUT

FRONT

Connection example

Notes (-A)

• Be sure to connect the ground (earth) lead before connecting the ampliﬁer.

• The alarm will only sound if the built-in ampliﬁer is used.

Tip (-B-

For connecting two or more CD/MD changers, the source selector XA-C40 (not supplied) is necessary.

)

SUB OUT (MONO)

Source selector*

Selector de fuente*

BUS CONTROL IN

XA-C40

AUDIO OUT

BUS AUDIO IN

BUS CONTROL IN

REAR

* not supplied

no suministrado

Ejemplo de conexiones

Notas (-A)

• Asegúrese de conectar primero el cable de conexión a masa antes de realizar la conexión del ampliﬁcador.

• La alarma sonará únicamente si se utiliza el ampliﬁcador incorporado.

Sugerencia (-B-

Si desea conectar dos o más cambiadores de CD/MD, necesitará el selector de fuente XA-C40 (no suministrado).

)

CDX-GT72W/GT720/GT770

Left Izquierdo

Right Derecho

Left Izquierdo

Right Derecho

from car antenna (aerial) desde la antena del automóvil

AMP REM



Max. supply current 0.3 A Corriente máx. de alimentación de 0,3 A

BUS AUDIO IN

SUB OUT (MONO)

Blue/white striped Con rayas azules y blancas

AUDIO

BUS

OUT

AUDIO

REAR

AUDIO OUT

REAR

White Blanco

White/black striped Con rayas blancas y negras

Grey Gris

Grey/black striped Con rayas grises y negras

Green Verde

Green/black striped Con rayas verdes y negras

Purple Morado

Purple/black striped Con rayas moradas y negras

AUDIO

OUT

FRONT

Fuse (10 A) Fusible (10 A)



AUDIO OUT

FRONT

REMOTE

BUS

CONTROL IN

Black Negro

Blue Azul

Light blue Azul celeste

Orange/white striped Con rayas naranjas y blancas

Red Rojo

Yellow Amarillo

Corriente máx. de alimentación de 0,1 A

Source selector

(not supplied) Selector de fuente (no suministrado)

Max. supply current 0.1 A

XA-C40

ANT REM

ATT

ILLUMINATION

Supplied with the CD/MD changer Suministrado con el cambiador de CD/MD

*1RCA pin cord (not supplied)

Supplied with XA-C40

Insert with the cord upwards.

Cable con terminales RCA (no suministrado)

Suministrado con el XA-C40

Insertar con el cable hacia arriba.



A-C40











Connection diagram

 To a metal surface of the car

First connect the black ground (earth) lead, then connect the yellow and red power supply leads.

 To the power antenna (aerial) control lead or

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).

• Whenyour car has a built-in FM/AM antenna (aerial) in the rear/side glass, see “Notes on the control and power supply leads.”

 To AMP REMOTE IN of an optional power

ampliﬁer

This connection is only for ampliﬁers. Connecting any other system may damage the unit.

 To the interface cable of a car telephone  To a car’s illumination signal

Be sure to connect the black ground (earth) lead to a metal surface of the car ﬁrst.

 To the +12 V power terminal which is

energized in the accessory position of the ignition switch

Notes

• Whenyour car has a built-in FM/AM antenna (aerial) in the rear/side glass, see “Notes on the control and power supply leads.”

 To the +12 V power terminal which is

energized at all times

Be sure to connect the black ground (earth) lead to a metal surface of the car ﬁrst.

Notes on the control and power supply leads

• The power antenna (aerial) control lead (blue) supplies +12V DC when you turn on the tuner.

• A power antenna (aerial) without a relay box cannot be used 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.

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.

• Do not connect the speaker terminals to the car chassis, or 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.

• 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.

• 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.

• 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.

Diagrama de conexión

 A una superﬁcie metálica del automóvil

Conecte primero el cable de conexión a masa negro, y después los cables amarillo y rojo de entrada de alimentación.

 Al cable de control de la antena motorizada

o al cable de fuente de alimentación del ampliﬁcador de señal de la antena

Notas

• Si no se dispone de antena motorizada ni de ampliﬁcador de antena, o se utiliza una antena telescópica accionada manualmente, no será necesario conectar este cable.

• Si el automóvil incorpora una antena de FM/AM en el cristal trasero o lateral, consulte “Notas sobre los cables de control y de fuente de alimentación”.

 A AMP REMOTE IN de un ampliﬁcador de

potencia opcional

Esta conexión es sólo para ampliﬁcadores. La conexión de cualquier otro sistema puede dañar la unidad.

 Al cable de interfaz de un teléfono para

automóvil

 A una señal de iluminación del automóvil

Asegúrese de conectar primero el cable de conexión a masa negro a una superﬁcie metálica del automóvil.

 Al terminal de alimentación de +12V que

recibe energía en la posición de accesorio del interruptor de la llave de encendido

Notas

• Si el automóvil incorpora una antena de FM/AM en el cristal trasero o lateral, consulte “Notas sobre los cables de control y de fuente de alimentación”.

 Al terminal de alimentación de +12V que recibe

energía sin interrupción

Asegúrese de conectar primero el cable de conexión a masa negro a una superﬁcie metálica del automóvil.

Notas sobre los cables de control y de fuente de alimentación

• El cable de control de la antena motorizada (azul) suministrará cc de + 12 V cuando conecte la alimentación del sintonizador.

• Si el automóvil dispone de una antena de FM/AM incorporada en el cristal trasero o lateral, conecte el cable de control de antena motorizada (azul) o el cable de entrada de alimentación auxiliar (rojo) al terminal de alimentación del ampliﬁcador de antena existente.Para obtener más información, consulte a su distribuidor.

• Con esta unidad no es posible utilizar una antena motorizada sin caja de relé.

Conexión para protección de la memoria

Si conecta el cable de entrada de alimentación amarillo, el circuito de la memoria recibirá siempre alimentación, aunque apague el interruptor de encendido.

Notas sobre la conexión de los altavoces

• Antes de conectar los altavoces, desconecte la alimentación de la unidad.

• Utilice altavoces con una impedancia de 4 a 8 Ω con la capacidad de potencia adecuada para evitar que se dañen.

• No conecte los terminales de altavoz al chasis del automóvil, ni conecte los terminales del altavoz derecho con los del izquierdo.

• No conecte el cable de conexión a masa de esta unidad al terminal negativo (–) del altavoz.

• No intente conectar los altavoces en paralelo.

• Conecte solamente altavoces pasivos. Si conecta altavoces

activos (con ampliﬁcadores incorporados) a los terminales de altavoz, puede dañar la unidad.

• No conecte los cables de altavoz de la unidad entre sí.

Nota sobre la conexión

Si el altavoz y el ampliﬁcador no están conectados correctamente, aparecerá “FAILURE” en la pantalla. Si es así, compruebe la conexión del altavoz y el ampliﬁcador.

CDX-GT72W/GT720/GT770

DISASSEMBLY

• This set can be disassembled in the order shown below.

SET

3-1. BASE PANEL ASSY (Page 13)

3-2. SUB PANEL ASSY (Page 13)

3-3. CD MECHANISM BLOCK (Page 14)

SECTION 3

3-4. DRIVING SECTION (DB-F07) (Page 14)

3-5. MAIN BOARD (Page 15)

3-6. SERVO BOARD (Page 15)

3-7. CHASSIS (T) SUB ASSY (Page 16)

3-8. ROLLER ARM ASSY (Page 16)

3-9. CHASSIS (OP) ASSY (Page 17)

3-10. CHUCKING ARM SUB ASSY (Page 17)

3-11. SLED MOTOR ASSY (Page 18)

3-12. OPTICAL PICK-UP SECTION (Page 19)

3-13. OPTICAL PICK-UP (Page 19)

Note: Follow the disassembly procedure in the numerical order given.

3-1. BASE PANEL ASSY

 two screws (panel F)

 bracket (PWB)

 base panel assy

CDX-GT72W/GT720/GT770

 two screws (panel F)

 two screws (T)

3-2. SUB PANEL ASSY

 two claws



 FLEXIBLE board (36 core)

(CN905) (Take care not to pull the flexible board excessively)

 BASE PANEL board

 two screws

(+PTT 2.6 × 6)



 claw

 sub panel assy

 two claws

 SUB PANEL board

CDX-GT72W/GT720/GT770

3-3. CD MECHANISM BLOCK

 CD mechanism block

 screw

(+PTT 2.6 × 6)

 CNP301

 two screws

(+PTT 2.6 × 4)

 bracket (CD)



3-4. DRIVING SECTION (DB-F07)

 driving section (DB-F07)

 screw (+PTT 2.6 × 6)

 screw (+PTT 2.6 × 6)

 CN702 (7P)

 screw

(+PTT 2.6 × 6)

3-5. MAIN BOARD

CDX-GT72W/GT720/GT770

 two screws (+PTT 2.6 × 8)

RE heat sink

 three ground point screws

(+PTT 2.6 × 6)

 screw (+PTT 2.6 × 10)

 insulating sheet

 two screws

(+P 2.6 × 8)

 two screws (+PTT 2.6 × 12)

 CN401 (3P)

 MAIN board

 screw

(+PTT 2.6 × 8)

 cord (automobile)

RB two screws

(+P 2.6 × 8)

RT screw (+PTT 2.6 × 10)

3-6. SERVO BOARD

WHT

RED

BLK

WHT

RED

BLK

RED

ORG

BLU

YEL

GRY

Remove the eleven solders.

SERVO board

claw

toothed lock screw (M 1.7 × 2.5)

toothed lock (M 1.7

SERVO board

optical pick-up (16 core)

(CN1)

claw

screw

2.5)

CDX-GT72W/GT720/GT770

3-7. CHASSIS (T) SUB ASSY

two precision screws (+P 1.7 × 2.2)

two precision screws (+P 1.7 × 2.2)

chassis (T) sub assy

claw

3-8. ROLLER ARM ASSY

spring (RAL)

roller arm assy

gear (RA1)

washer

spring (RAR)

3-9. CHASSIS (OP) ASSY



tension spring (KF)

coil spring (damper) (natural)

CDX-GT72W/GT720/GT770

 chassis (OP) assy



coil spring (damper) (green)

slider (R)

lever (D)

gear (LE1)

3-10. CHUCKING ARM SUB ASSY

spring

Note: Have this portion receive the chassis.

chucking arm sub assy



Note: Have this portion receive the chassis.

Note: Be careful not to touch the turn table.

+ 37 hidden pages

Sony CDXGT-72-W, CDXGT-720, CDXGT-770 Service manual

TABLE OF CONTENTS

SERVICE NOTE

GENERAL

DISASSEMBLY

3-1. BASE PANEL ASSY

3-2. SUB PANEL ASSY

3-3. CD MECHANISM BLOCK

3-4. DRIVING SECTION (DB-F07)

3-5. MAIN BOARD

3-6. SERVO BOARD

3-7. CHASSIS (T) SUB ASSY

3-8. ROLLER ARM ASSY

3-9. CHASSIS (OP) ASSY

3-10. CHUCKING ARM SUB ASSY