Sony HCD-GS10 User manual

SERVICE MANUAL
Sony Corporation
Personal Audio Division
Published by SonyTechno Create Corporation
Canadian Model
AEP Model
HCD-GS10
UK Model
HCD-GS30DAB
E Model
HCD-GS10
COMPACT DISC DECK RECEIVER
9-887-580-04
2007E16-1
© 2007.05
Ver. 1.3 2007.05
SPECIFICATIONS
HCD-GS10/GS30DAB
HCD-GS10/GS30DAB are the Amplifier, CD player
and Tuner section in CMT-GS10/GS30DAB.
Model Name Using Similar Mechanism HCD-EC55
Base Unit Name BU-K6BD90-WOD
Optical Pick-up Name KSM-213DCP
Amplifier section
Canadian model:
Continuous RMS power output (reference): 50 + 50 W (6 ohms at
1 kHz, 10% THD)
European and Russian models:
DIN power output (rated): 45 + 45 W (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 50 + 50 W (6 ohms at
1 kHz, 10% THD)
Music power output (reference): 75 + 75 W
Other models:
220 V AC, 50/60 Hz (Argentine model),
127 V AC, 60 Hz (Mexican model)
120 V or 240 V AC, 50/60 Hz (other models)
DIN power output (rated): 45 + 45 W (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 50 + 50 W (6 ohms at
1 kHz, 10% THD)
Inputs
AUDIO IN (stereo mini jack): Sensitivity 775 mV, impedance 22 kilohms
Outputs
PHONES (stereo mini jack): Accepts headphones with an impedance of
8ohms or more
SPEAKER: Accepts impedance of 6 ohms
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Emission duration: continuous
Laser Output*: Less than 44.6µW
*This output is the value measurement at a distance of 200mm from the
objective lens surface on the Optical Pick-up Block with 7mm aperture.
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
Tuner section
DAB tuner section (UK model):
Frequency range
Band-III: 174.928 (5A) – 239.200 (13F) MHz
* For details, see “DAB frequency table”.
Antenna: FM/DAB lead antenna
Antenna terminal: 75 ohms, F female
FM stereo, FM/AM superheterodyne tuner
Antenna:
FM/DAB lead antenna (UK)
FM lead antenna (Except UK)
AM loop antenna
FM tuner section:
Tuning range
Canadian model: 87.5 – 108.0 MHz (100 kHz step)
Other models: 87.5 – 108.0 MHz (50 kHz step)
Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range
Canadian model: 530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,710 kHz (with 9 kHz tuning interval)
European and Russian models: 531 – 1,602 kHz
(with 9 kHz tuning interval)
Other models: 530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,602 kHz (with 9 kHz tuning interval)
Intermediate frequency: 450 kHz
Photo : HCD-GS10
DAB frequency table (Band-III)
Frequency Label Frequency Label
174.928 MHz 5A 197.648 MHz 8B
176.640 MHz 5B 199.360 MHz 8C
178.352 MHz 5C 201.072 MHz 8D
180.064 MHz 5D 202.928 MHz 9A
181.936 MHz 6A 204.640 MHz 9B
183.648 MHz 6B 206.352 MHz 9C
185.360 MHz 6C 208.064 MHz 9D
187.072 MHz 6D 209.936 MHz 10A
188.928 MHz 7A 211.648 MHz 10B
190.640 MHz 7B 213.360 MHz 10C
192.352 MHz 7C 215.072 MHz 10D
194.064 MHz 7D 216.928 MHz 11A
195.936 MHz 8A 218.640 MHz 11B
Frequency Label
220.352 MHz 11C
222.064 MHz 11D
223.936 MHz 12A
225.648 MHz 12B
227.360 MHz 12C
229.072 MHz 12D
230.784 MHz 13A
232.496 MHz 13B
234.208 MHz 13C
235.776 MHz 13D
237.488 MHz 13E
239.200 MHz 13F
(UK model)
— Continued on next page —

2
HCD-GS10/GS30DAB
TABLE OF CONTENTS
1. SERVICING NOTES ................................................ 3
2. GENERAL ................................................................... 4
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 6
3-2. Side Panel (R) and Side Panel (L) ................................... 7
3-3. Top Panel, DAB Board (UK)........................................... 7
3-4. Front Panel Assy.............................................................. 8
3-5. PANEL Board.................................................................. 8
3-6. HP Board, AUX Board .................................................... 9
3-7. DC Fan ............................................................................ 9
3-8. MAIN Board.................................................................... 10
3-9. REG Board, WIRE HOLD Board ................................... 10
3-10. AC Cord, Tuner (UK) ...................................................... 11
3-11. CD Mechanism ................................................................ 11
3-12. AMP Board...................................................................... 12
3-13. PT Board, Power Transformer......................................... 12
3-14. Belt .................................................................................. 13
3-15. Optical Pick-up (KSM-213DCP), BD90 Board .............. 14
4. TEST MODE ............................................................... 15
5. ELECTRICAL ADJUSTMENTS .......................... 17
6. DIAGRAMS
6-1. Block Diagram — BD/DRIVER Section — .................. 20
6-2. Block Diagram — TUNER Section — .......................... 21
6-3. Block Diagram — MAIN Section —............................. 22
6-4. Printed Wiring Board — BD90 Board — ...................... 23
6-5. Schematic Diagram — BD90 Board — ......................... 24
6-6. Printed Wiring Boards
— MAIN Board , REG Board —.................................... 25
6-7. Schematic Diagram
— MAIN Board (1/2), REG Board — ............................ 26
6-8. Schematic Diagram — MAIN Board (2/2) — ............... 27
6-9. Printed Wiring Board — AMP Board — ....................... 28
6-10. Schematic Diagram — AMP Board — .......................... 29
6-11. Printed Wiring Boards
— PANEL Board , KEY Board (AEP) — ...................... 30
6-12. Schematic Diagram
— PANEL Board , KEY Board (AEP) — ...................... 31
6-13. Printed Wiring Boards
— AUX Board , HP Board — ......................................... 32
6-14. Schematic Diagram
— AUX Board , HP Board — ......................................... 32
6-15. Printed Wiring Board
— PT Board (CND, AEP, UK, RU) — ........................... 33
6-16. Schematic Diagram
— PT Board (CND, AEP, UK, RU) — ........................... 33
7. EXPLODEDVIEWS
7-1. Overall Section ................................................................ 40
7-2. Front Panel Section ......................................................... 41
7-3. Chassis Section ................................................................ 42
7-4. CD Mechanism Section................................................... 43
8. ELECTRICAL PARTS LIST .................................. 44
Ver. 1.3
Printed wiring boards, schematic diagrams and electrical parts lists are changed.
See REVISION HISTORY for details of changes on the last page.
•Abbreviation
AR : Argentine model
CND : Canadian model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican model
RU : Russian model
SP : Singapore model
General
Power requirements:
Canadian model: 120 V AC, 60 Hz
European and Russian models: 230 V AC, 50/60 Hz
Argentine model: 220 V AC, 50/60 Hz
Mexican model: 127 V AC, 60 Hz
Other models: 120 V, 220 V or 230 – 240 VAC, 50/60 Hz,
adjustable with voltage selector
Power consumption:
Canadian model: 100 W
European model: 110 W
Other models: 110 W
Dimensions (w/h/d) (excl. speakers):Approx. 170 ×246 ×307.5 mm
Mass (excl. speakers):Approx. 4.0 kg
Design and specifications are subject to change without notice.
Service manual Original SUPPLEMENT-1 SUPPLEMENT-2
Board name suffix suffix suffix
MAIN (REG) board -11, -12 -13
PANEL (KEY) board -11 -12, -13
BD90 board All
DAB board (UK model) -13
Others -11 to -13
PT board CND, AEP, UK, RU AR, E2, E51, SP MX
All suffix Suffix-12, -13 Suffix-13
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
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.

3
HCD-GS10/GS30DAB
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.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 °C
during repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
otherthan thosespecifiedherein mayresult inhazardousradiation
exposure.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free 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 viscou-s (sticky, less prone to flow)
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.
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 flexible 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 reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
SECTION 1
SERVICING NOTES
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
When carrying this system
1 Press the ?/1 button to turn the power on.
Insert a disc.
2 Press the CD ubutton to select CD function.
While pressing the xbutton, press the Zbutton for
more 5 seconds.
3 The message “LOCKED” is displayed and the disc slot
is locked. (Even if exiting from this mode, the disc slot
is still locked)
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
CAUTION
Ver. 1.3
MODEL IDENTIFICATION
– Rear Panel –
•Abbreviation
AR : Argentine model
CND : Canadian model
E2 : 120 V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican model
RU : Russian model
SP : Singapore model
Model Part No.
GS10 : E2, E51 models 2-319-562-0[]
GS10 : MX model 2-319-563-0[]
GS10 : AR model 2-319-756-0[]
GS10 : SP model 2-319-760-0[]
GS10 : AEP model 2-899-469-0[]
GS10 : RU model 2-899-470-0[]
GS10 : CND model 2-899-471-0[]
GS30DAB : UK model 3-099-988-0[]
Parts No.

4
HCD-GS10/GS30DAB SECTION 2
GENERAL This section is extracted
from instruction manual.
Basic Operations
Before using the system
To use the remote
Slide and remove the battery compartment lid
ȹ
, and
insert the two R6 (size AA) batteries (supplied), ×side
rst, matching the polarities shown below.
Notes on using the remote
ˎWith normal use, the batteries should last for about six months.
ˎDo not mix an old battery with a new one or mix dierent types of
batteries.
ˎIf you do not use the remote for a long period of time, remove the
batteries to avoid damage from battery leakage and corrosion.
To set the clock
1Turn on the system.
Press ÒÄÆ (on/standby)
ȩ
.
2 Select the clock set mode.
Press CLOCK/TIMER SET
ȷ
on the remote. If the
current mode appears on the display, press Ã/Ñ
ȵ
on the remote repeatedly to select “CLOCK,” and
then press ENTER
ȸ
on the remote.
3 Set the time.
Press Ã/Ñ
ȵ
on the remote repeatedly to set
the hour, and then press ENTER
ȸ
on the remote.
Use the same procedure to set the minutes.
e clock settings are lost when you disconnect the
power cord or if a power failure occurs.
To display the clock when the system is o, press
DISPLAY
Ȭ
. e clock is displayed for about 8
seconds.
Selecting a music source
Press the following buttons (or press FUNCTION
Ȯ
on
the remote repeatedly).
To select Press
CD CD
Ȯ
on the remote.
Tun er TUNER/BAND
Ȯ
.
Component (connected using
an audio cord)
AUDIO IN
Ȯ
.
Adjusting the sound
To adjust the volume
Press VOLUME +/ˋon the remote (or turn the
VOLUME control on the unit)
ȱ
.
To add a sound eect
To Press
Generate a more dynamic
sound (Dynamic Sound
Generator X-tra)
DSGX
ȴ
on the unit.
Set the sound eect EQ
ȴ
.
Playing a CD/MP3 disc
1 Select the CD function.
Press CD on the remote (or FUNCTION on the
remote repeatedly)
Ȯ
.
2 Place a disc.
Press ì(open/close)
Ȱ
on the unit, and place a disc
with the label side up on the disc tray.
To close the disc tray, press ì(open/close)
Ȱ
on the
unit.
Do not force the disc tray closed with your nger, as
this may damage the unit.
3 Start playback.
Press à(play) (or CD ā(play/pause) on the unit)
Ȯ
.
To Press
Pause playback ê(pause) on the remote (or CD
āon the unit)
Ȯ
. To resume
play, press the button again.
Stop playback Ą(stop)
ȶ
.
Select a folder on an
MP3 disc
+/ˋ
ȯ
.
Select a track or le Ã/Ñ(go back/go forward)
on the remote (ø/Þon the
unit)
ȵ
.
Find a point in a
track or le
Hold down ù/ß(rewind/
fast forward)
ȵ
during playback,
and release the button at the
desired point.
Select Repeat Play REPEAT
ȭ
on the remote
repeatedly until “REP” or “REP1”
appears.
To change the play mode
Press PLAY MODE
ȭ
repeatedly while the player is
stopped. You can select normal play (“ ”
for all MP3
les in the folder on the disc), shue play (“SHUF” or
“SHUF*”), or program play (“PGM”).
*When playing a CD-DA disc, (SHUF) Play performs the same
operation as normal (shue) play.
Notes on Repeat Play
ˎAll tracks or les on a disc are played repeatedly up to ve times.
ˎ“REP1” indicates that a single track or le is repeated until you stop
it.
Notes on playing MP3 discs
ˎDo not save other types of tracks or les or unnecessary folders on a
disc that has MP3 les.
ˎFolders that have no MP3 les are skipped.
ˎMP3 les are played back in the order that they are recorded onto
the disc.
ˎe system can only play MP3 les that have a le extension of
“.MP3”.
ˎIf there are les on the disc that have the “.MP3” le extension,
but that are not MP3 les, the unit may produce noise or may
malfunction.
ˎe maximum number of:
ˋfolders is 150 (including the root folder).
ˋMP3 les is 255.
ˋMP3 les and folders that can be contained on a single disc is 256.
ˋfolder levels (the tree structure of les) is eight.
ˎCompatibility with all MP3 encoding/writing soware, recording
device, and recording media cannot be guaranteed. Incompatible
MP3 discs may produce noise or interrupted audio or may not play
at all.
Notes on playing multisession discs
ˎIf the disc begins with a CD-DA (or MP3) session, it is recognized as
a CD-DA (or MP3) disc, and other sessions are not played back.
ˎA disc with a mixed CD format is recognized as a CD-DA (audio)
disc.
Listening to the radio
1 Select “FM” or “AM.”
Press TUNER/BAND
Ȯ
repeatedly.
2 Select the tuning mode.
Press TUNING MODE
ȭ
repeatedly until “AUTO”
appears.
3 Tune in the desired station.
Press +/ˋon the remote (or TUNING + or ˋon the
unit)
ȵ
. Scanning stops automatically when a station
is tuned in, and then “TUNED” and “STEREO” (for
stereo programs only) appear.
To stop automatic scanning
Press Ą(stop)
ȶ
.
To tune in a station with a weak signal
If “TUNED” does not appear and the scanning does
not stop, press TUNING MODE
ȭ
repeatedly until
“MANUAL” appears and press +/ˋon the remote (or
TUNING + or ˋon the unit)
ȵ
repeatedly to tune in
the desired station.
To reduce static noise on a weak FM stereo
station
Press FM MODE
ȭ
on the remote repeatedly until
“MONO” appears to turn o stereo reception.
Changing the display
To Press
Change
information on the
display
1)
DISPLAY

repeatedly when the
system is on.
Check the clock
when the system
is o
DISPLAY

when the system is
o
2)
. e clock is displayed for 8
seconds.
1)
For example, you can view CD/MP3 disc information, such as the
track or le number or folder name during normal play, or the total
playing time while the player is stopped.
2)
e STANDBY indicator
Ȫ
on the unit lights up when the system is
turned o.
Notes on the display information
ˎe following are not displayed:
ˋtotal playing time for a CD-DA disc depending on the play mode.
ˋtotal playing time for an MP3 disc.
ˋremaining playing time for a track and an MP3 le.
ˎe following are not displayed correctly:
ˋelapsed playing time of an MP3 le encoded using a VBR (variable
bit rate).
ˋfolder and le names that do not follow either the ISO9660
Level 1, Level 2 or Joliet in the expansion format.
ˎe following are displayed:
ˋID3 tag information for MP3 les when ID3 version 1 and version
2 tags are used.
ˋup to 15 characters of ID3 tag information using uppercase letters
(A to Z), numbers (0 to 9), and symbols (‘< > * + , ˋ/ @ [ \ ] _).
Using optional audio components
To connect an optional headphones
Connect headphones to the PHONES jack
ȳ
on the
unit.
To connect an optional component
Connect additional audio source components to the
AUDIO IN jack
Ȳ
on the unit using an analog audio
cord (not supplied). Turn down the volume on the
system, and then select the AUDIO IN function.

5
HCD-GS10/GS30DAB
Other Operations
Creating your own CD program
(Program Play)
1Press CD Ȯto select the CD function.
2Press PLAY MODE ȭrepeatedly until“PGM”appears
while the player is stopped.
3Press Ã/Ñ(or ø/Þon the unit) ȵ
repeatedly until the desired track or le number
appears.
When programing MP3 les, press +/ˋȯ
repeatedly to select the desired folder, and then select
the desired le.
Selected track or le number
4Press ENTER ȸto add the track or le to the
program.
5Repeat steps 3 through 4 to program additional
tracks or les, up to a total of 15 tracks or les.
6To play your program of tracks or les, press à(or
CD āon the unit) Ȯ.
e program remains available until you open the disc
tray. To play the same program again, select the CD
function, and press à(or CD āon the unit) Ȯ.
To cancel Program Play
Press PLAY MODE ȭrepeatedly until “PGM”
disappears while the player is stopped.
To delete the last track or le of the program
Press CLEAR Ⱥon the remote while the player is
stopped.
To view program information, such as total
track number of the program
Press DISPLAY Ȭrepeatedly.
Presetting radio stations
You can preset your favorite radio stations and tune
them in instantly by selecting the corresponding preset
number.
Use buttons on the remote to preset stations.
1Tune in the desired station (See “Listening to the
radio”).
2Press TUNER MEMORY ȭ.
Preset number
3Press +/ˋ(or TUNING + or ˋon the unit) ȵ
repeatedly to select your desired preset number.
If another station is already assigned to the selected
preset number, the station is replaced by the new
stations.
4Press ENTER ȸ.
5Repeat steps 1 through 4 to store other stations.
You can preset up to 20 FM and 10 AM stations. e
preset stations are retained for about half a day even
if you disconnect the power cord or if a power failure
occurs.
6To call up a preset radio station, press TUNING
MODE ȭrepeatedly until“PRESET” appears, and
then press +/ˋ(or TUNING + or ˋon the unit) ȵ
repeatedly to select the desired preset number.
Using the Timers
e system oers two timer functions. If you use both
timers, the Sleep Timer has priority.
Sleep Timer:
You can fall asleep to music. is function works even if
the clock is not set.
Press SLEEP Ȼrepeatedly. If you select “AUTO,” the
system automatically turns o aer the current disc stops
or in 100 minutes.
Play Timer:
You can wake up to CD or tuner at a preset time.
Use buttons on the remote to control the Play Timer.
Make sure you have set the clock.
1Prepare the sound source.
Prepare the sound source, and then press VOLUME
+/ˋȱto adjust the volume.
To start from a specic CD track or MP3 le, create
your own CD program.
2Press CLOCK/TIMER SET ȷ.
3Press Ã/Ñȵrepeatedly to select “PLAY,” and
then press ENTER ȸ.
“ON TIME” appears, and the hour indication ashes.
4Set the time to start playing.
Press Ã/Ñȵrepeatedly to set the hour, and
then press ENTER ȸ.
e minute indication ashes. Use the procedure
above to set the minutes.
5Use the same procedure as in step 4 to set the time
to stop playing.
6Select the sound source.
Press Ã/Ñȵrepeatedly until the desired
sound source appears, and then press ENTER ȸ. e
display shows the timer settings.
7Press ÒÄÆ ȩto turn o the system.
If the system is on at the preset time, the Play Timer
will not play.
To activate or check the timer again
Press CLOCK/TIMER SELECT ȷ, press Ã/Ñȵ
repeatedly until “PLAY” appears, and then press ENTER
ȸ.
To cancel the timer
Repeat the same procedure as above until “OFF” appears,
and then press ENTER ȸ.
To change the setting
Start over from step 1.
Tip
e Play Timer setting remains as long as the setting is not canceled
manually.

6
HCD-GS10/GS30DAB SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
3-3. TOP PANEL , DAB BOARD ( UK )
(Page 7)
3-4. FRONT PANEL ASSY
(Page 8)
3-5. PANEL BOARD
(Page 8)
3-8. MAIN BOARD
(Page 10)
3-9. REG BOARD,
WIRE HOLD BOARD
(Page 10)
3-13. PT BOARD,
POWER TRANSFORMER
(Page 12)
3-7. DC FAN
(Page 9)
3-10. AC CORD, TUNER ( UK )
(Page 11)
3-11. CD MECHANISM
(Page 11)
3-12. AMP BOARD
(Page 12)
3-6. HP BOARD,
AUX BOARD
(Page 9)
3-14. BELT
(Page 13)
3-15. OPTICAL PICK-UP (KSM-213DCP),
BD90 BOARD
(Page 14)
3-2. SIDE PANEL (R) AND
SIDE PANEL (L)
(Page 7)
SET
Ver. 1.2

7
HCD-GS10/GS30DAB
3-2. SIDE PANEL (R) AND SIDE PANEL (L)
3-3. TOP PANEL, DAB BOARD (UK)
3 side panel (R)
6 side panel (L)
1 two screws
(3 × 12)
4 two screws
(3 × 12)
2 two tapping screw
s
(+BVTP 3 × 10)
5 two tapping screws
(+BVTP 3 × 10)
Note: Follow the disassembly procedure in the numerical order given.
Ver. 1.2
1 screw
(+KTP2 3 × 8 )
2 screw
(+KTP2 3 × 8 )
4 two claws
5 top panel
3 two tapping screws
(+BVTP
3 × 10)
(EXCEPT UK)
7 screw
(+KTP2 3 × 8 )
8 two tapping screws
(+BVTP
3 × 10)
qa top panel
0 wire (flat type)
9core (CN500)
(UK)
qs three screws
(+BVTP 2.6)
qg DAB board
qd wire (flat type)
9core
qf pin connector
9 washer
6 screw
(+KTP2 3 × 8 )

8
HCD-GS10/GS30DAB
9 screw
(+KTP2 3 × 8 )
q; screw
(+KTP2 3 × 8 )
1 screw
(+BVTP 3 × 8 )
8 two screws
(+BVTP 3 × 10 )
2 screw
(+BVTP 3 × 8 )
3 wire (flat type)
5core (CN601)
7 wire (flat type)
25core (CN121)
5 connector
(CN105)
6 connector
(CN104)
qa front panel
assy
4 Remove the two harnesses
that is fixed on the clamp.
When assembling,
clamp the two harnesses with
a lead pin.
PRECAUTION DURING
CONNECTOR INSTALLATION
MAIN board
lead pin
lead pin
harness
harness
9 wire (flat type)
25core (CN712)
q; PANEL board
8 claw
4 two screws
(+BVTP 2.6 × 8 )
6 KEY board
2 knob (VOL)
3 ring (VOL)
5 connector
(CN701)
7 eleven screws
(+BVTP 2.6 × 8 )
9 wire (flat type)
29core (CN712)
1 two foot (felt)
(UK)
3-4. FRONT PANEL ASSY
3-5. PANEL BOARD
Ver. 1.2

9
HCD-GS10/GS30DAB
1 screw
(+BVTP 2.6 × 8
)
4 screw
(+BVTP 2.6 × 8 )
2 JACK HOLD board
5 JACK HOLD board
7 AUX board
3 HP board
6 two dowels
3-6. HP BOARD, AUX BOARD
3-7. DC FAN
lead pin
MAIN board
When assembling,
clamp the harness with a lead pin.
harness
5 claw
6 back panel
4 connector
(CN901)
1 six tapping screws
(+BVTP 3 × 10)
7 DC fan
2 two screws
(+BVTP
3 × 14
)
3 Remove the harness
that is fixed on the clamp.
PRECAUTION DURING CONNECTOR
INSTALLATION

10
HCD-GS10/GS30DAB
1 screw(+BVTP 3 × 8)
5 screw (+BVTP 3 × 8)
3 screw (+BVTP 3 × 8
)
6 REG board
2 WIRE HOLD board
4 coating clip
3-9. REG BOARD,WIRE HOLD BOARD
3-8. MAIN BOARD
WIRE HOLD board
1 connector
(CN001)
9 MAIN board
3 two screws
(+BVTP
3 × 8)
7 connector
(CN103)
5 connector
(CN201)
6 connector
(CN202)
2 wire (flat type)
21core (CN114)
8 wire (flat type)
11core (CN113)
4 Remove the two harnesses
that is fixed on the clamp.
When assembling,
clamp the two harnesses with
a lead pin.
PRECAUTION DURING
CONNECTOR INSTALLATION
lead pin
harness
harness
MAIN board
(UK)
Ver. 1.2

11
HCD-GS10/GS30DAB
3-10. AC CORD, TUNER (UK)
5 AC cord
4 AC HOLD board
3 screw
(+BVTP 3 × 8)
1 five screws
(+BVTP 4 × 12 )
2 Remove soldering from
the two points.
7 ground plate (tuner)
9 tuner
6 two screws
(+BVTT 2.6 × 8)
8 wire (flat type)
11core
(UK)
(UK)
3-11. CD MECHANISM
1 door (CD)
3 three screws
(+BVTP
3 × 10 )
4 chassis (main)
2 two foot (felt)
5 wire (flat type)
21core
7 CD mechanism
6 wire (flat type
)
5core
Ver. 1.2

12
HCD-GS10/GS30DAB
2 chassis (PT)
3 PT board,
power transformer
1 four screws
(+BVTT 4
× 6 )
3-12. AMP BOARD
3-13. PT BOARD, POWER TRANSFORMER
1 two screws
(+BVTP
3 × 10)
3 screw
(+BVTP
3 × 8)
4 screw
(+BVTP
3 × 8)
6 two screws
(transistor)
5 bracket (heat sink
)
2 claw
7 heat sink
8 AMP board

13
HCD-GS10/GS30DAB
4
2
3 two claws
5 tray
6 belt
bottom side
1 Move the chuck cam
in the direction of the arrow.
3-14. BELT

14
HCD-GS10/GS30DAB
1 two floating screws
(+PTPWHM 2.6)
7 screw floating
(+PTPWHM 2.6)
2 two springs (insulator)
3 two insulators
4 two floating screws
(+PTPWHM 2.6)
5 two springs (insulator)
6 two insulators
9 Remove soldering from
the four points.
8 wire (flat type) (16 core)
(CN301)
qa BD90 board
q; optical pick-up
(KSM-213DCP)
3-15. OPTICAL PICK-UP (KSM-213DCP), BD90 BOARD

15
HCD-GS10/GS30DAB
[MC COLD RESET]
The cold reset clears all data including preset data stored in the
memory to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. The MC COLD RESET can be executed while the machine is
either in the standby status, or the power-on status.
2. Press three buttons of [DSGX], x, and at last @/1 simulta-
neously.
3. When “RESET” appears, the machine enters standby status.
[PANEL TEST MODE]
EnterThe PanelTest Mode
Procedure:
1. In the standby status, press the @/1 button to turn the power
on.
2. Press three buttons of [DISPLAY], x, and [DSGX] simulta-
neously.
3. When the panel test mode is activated, LEDs and segments of
LCD are all turned on.
Version Check
Procedure:
1. In the panel test mode (all LEDs and segments of LCD are
turned on), press the [AUDIO IN] button.
2. On the LCD, date and version are displayed “xxxxxxxx”.
For example, “1116V100”.
3. From this status, press the [TUNER/BAND] button, and the
destination is displayed. For example, “GS10CE2”
4. To release from this mode, press three buttons of [DISPLAY],
x, and [DSGX] simultaneously.
[CD SLOT LOCK]
This mode is for the antitheft of CD disc in shop. (not for transport)
Procedure:
1. Press the @/1 button to turn the power on.
2. Insert a disc.
3. Press the CD ubutton to select CD function.
4. While pressing the xbutton, press the Zbutton for more 5
seconds.
5. The message “LOCKED” is displayed and the disc slot is
locked. (Even if exiting from this mode, the disc slot is still
locked)
6. If press the Zbutton to eject the disc, the message
“LOCKED” is displayed and can not eject the disc.
7. To release this lock, while pressing the xbutton, press the
Zbutton for 5 seconds again.
8. The message “UNLOCKED” is displayed and the disc slot is
unlocked.
[CD POWER MANAGE]
This mode is for switch the CD power supply on/off. Even if this
state pulls out AC plug, it is held.
Procedure:
1. Press the @/1 button to turn the power on.
2. Insertt a disc.
3. Press the CD ubutton to select CD function, and press the
xbutton.
4. Press the @/1 button again to turn the power off (standby).
5. Pressthe [DISPLAY] buttononce.While pressingthe xbutton,
press the @/1 button.
6. It turns power on and display “CD POWER”, then display
“ON” or “OFF”.
[CHANGE-OVER THE AM TUNING INTERVAL]
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the @/1 button to turn the power on.
2. Press the [TUNER/BAND] button to select TUNER (AM)
function.
3. Press the @/1 button again to turn the power off (standby).
4. After pressing the [DISPLAY] button, while pressing the
TUNING+ ML button, press the @/1 button.
5. It turns power on and display “9k STEP” or “10k STEP”, and
thus the tuning interval is changed over.
[CD SERVICE MODE]
This mode can move the SLED of the optical pick-up, and also can
turn the optical pick-up laser power on and off.
Procedure:
1. Press the @/1 button to turn the power on.
2. Pressthree buttons of x, +, and [DISPLAY] simultaneously.
3. It enters the CD service mode and displays “SERVICE”.
4. To exit from this mode, press three buttons of x , + and
[DISPLAY] simultaneously.
Key Operation:
TUNING+ ML , TUNING– ml :
Use these keys to move the SLED. When
TUNING+ ML is pressed in this mode, the
SLEDmovesto outercircumference andthe message
“SLED OUT” is displayed.
When TUNING– ml is pressed in this mode,
the SLED moves to inner circumference and the
message “SLED IN” is displayed.
PLAY MODE/TUNING MODE :
Use this key to turn the optical pick-up laser power
on and off. When the laser power is turned on, the
message “LD ON” is displayed. When the laser
power is turned off, the message “LD OFF” is
displayed.
[CD ERROR CODE]
The past errors of the optical pick-up system (= optical unit + BD
board) are displayed as the BD Errors as shown below.
Procedure:
1. Press the @/1 button to turn the power on.
2. Insert a disc.
3. Press the CD ubutton to select CD function.
4. Press three buttons of x, [DISPLAY] and Z simultaneously.
5. Then, the BD error code is displayed as “D0xxxxxx” (x means
hexadecimal number) on the LCD screen.
6. Everypressing ofthe TUNING+ ML buttonin thismode
increments the number after “D” starting from “D0” up to
“D4”, and then returns to “D0”. Every pressing of the
TUNING– ml button in this mode decrements the
number after “D”. The smaller the error code number is, the
newer the error content is.
7. To exit from this mode, press the @/1 button to turn the
power off.
SECTION 4
TEST MODE
Ver. 1.1

16
HCD-GS10/GS30DAB
Contents of “BD Errors”
Error display example
D 0 02 09 01
1234
1It indicates the error history number
0 to 4: The error history number 0 indicates the newest error.
2It indicates the error content
01: The focus servo cannot lock-in.
02: GFS is not good (NG).
03: Thestartup timeexceeds thespecifiedperiod oftime (time
over)
04: The focus servo is unlocked continuously.
05: Q code cannot be obtained within the specified period of
time.
06: The tracking servo cannot lock-in.
07: Blank disc
3It indicates the processing during which the trouble has
occurred.
01: The CD SHIP mode processing is in progress.
02: The POWER OFF processing is in progress.
03: The INITIALIZE processing is in progress.
04: The optical pick-up system (= optical unit + BD board)
is in the stop state.
05: The STOP operation is in progress.
06: The startup processing is in progress.
07: The TOC read-in processing is in progress.
08: The SEARCH operation is in progress.
09: The PLAY operation is in progress.
0A: The PAUSE operation is in progress.
0B: The PLAY – MANUAL SEARCH operation is in
progress.
0C: The PAUSE – MANUAL SEARCH operation is in
progress.
4It indicates the operation of the processing during which the
trouble has occurred.
It indicates the step number of each processing specified by
3. Because the numbers of steps are different in each
processing, this number can be different in each processing.

17
HCD-GS10/GS30DAB
Checking Location:
+
–
BD90 board
TP (RFI)
TP (VC)
oscilloscope
(DC range)
Procedure :
1. Connect oscilloscope to TP (RFI) and TP (VC) on the BD90
board.
2. Press the I/1button to turn the power ON, and press
the Z(CD) button to open the CD disc tray.
3. Set disc (YEDS-18) on the tray and press the CDubutton
to playback.
4. Confirm that oscilloscope waveform is as shown in the figure
below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level:
1.2
± 0.3 Vp-p
TP
(VC)
TP
(RFI) IC101
– BD90 Board (Side B) –
CD SECTION
Note:
1. CD Block is basically constructed to operate without adjustment.
2. UseYEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MΩimpedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
5. Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
SECTION 5
ELECTRICAL ADJUSTMENTS
TUNER SECTION 0 dB=1 µV
(Except UK)
[AM]
Setting:
FUNCTION: TUNER
TUNER/BAND button: AM
[FM]
Setting:
FUNCTION: TUNER
TUNER/BAND button: FM
•Repeat the procedures in each adjustment several times.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level: 54 dBuV
60 cm
set
loop antenna A loop antenna B
+
–
level meter
32 Ω
HP board
PHONES jack (J102)
MAIN board
ANTENNA
CN802 pin
2 , 3
FM RF signal
generator
75kHz frequency
deviation by 1 kHz
signal
Output level: as low as possible
(8dBuV)
+
–
level meter
set
32 Ω
0.01 µ F
HP board
PHONES jack (J102)
MAIN board
ANTENNA
CN802 pin 1
MAIN board
ANTENNA
CN802 pin
2
digital voltmeter
100 k Ω
MAIN board
TP (TUNER–VT)
TP (TUNER–GND)
Ver. 1.2

18
HCD-GS10/GS30DAB
Adjustment Location and Connecting Points
L851
(TUNER–VT)
TP(TUNER–VT)
(TUNER–GND)
TP(TUNER–GND)
FM FREQUENCY
COVERAGE
ADJUSTMENT
FM TRACKING
ADJUSTMENT
AM TRACKING
ADJUSTMENT
FM DETECTOR
ADJUSTMENT
CN802
– MAIN BOARD (Conductor side) –
– MAIN BOARD (Component side) –
1
3
L804
L805
L803
L806
IC801 pin qs
(TUNER OUT L-ch)
[FM DETECTOR ADJUSTMENT]
Setting:
FUNCTION: TUNER
TUNER/BAND button: FM
FM RF signal
generator
Carrier frequency: 98MHz
Modulation:
deviation by FM 75 kHz
Output level: 60 dBuV
+
–
level meter
MAIN board
TP(TUNER–GND)
MAIN board
IC801 pin
qs
(TUNER OUT L-ch)
set
MAIN board
ANTENNA
CN802 pin 2
MAIN board
ANTENNA
CN802 pin 1
1. Tune the set to 98 MHz.
2. Adjust L806 so that modulation distortion may become the
best in the vicinity of the maximum value where the tuner out
level becomes –15dBuV or more.
AM FREQUENCY COVERAGE ADJUSTMENT
(Canadian)
Adjustment Part Frequency Display Reading on Digital Voltmeter
530 kHz 1.6 ±0.3 V
Confirmation 1,710 kHz 7.0 ±0.5 V
AM FREQUENCY COVERAGE ADJUSTMENT
(EXCEPT Canadian)
Adjustment Part Frequency Display Reading on Digital Voltmeter
531 kHz 1.6 ±0.3 V
Confirmation 1,602 kHz 6.7 ±0.5 V
AMTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
620 kHz (Canadian) /
L851, L803 603 kHz (EXCEPT Canadian)
FM FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
L805 87.5 kHz 1.7 ±0.1 V
Confirmation 108 kHz 6.2 ±0.5 V
FMTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L804 98 MHz
Adjustment Location: MAIN board.
Ver. 1.3

1919
HCD-GS10/GS30DAB
HCD-GS10/GS30DAB
• Circuit Boards Location
•Waveforms
– BD90 Board – – PANEL Board ––– MAIN Board –
1 IC801 w; (XOUT)
13.3 µ s1.5 Vp-p
500 mV/DIV, 4
µ s/DIV
1 IC701 qd (X0A/P90)
30.5 µ s2.2 Vp-p
500 mV/DIV, 10
µ s/DIV
2 IC701 od (X0)
180 ns 3.3 Vp-p
1 V/DIV, 100 ns/DIV
1 IC101 ia (RFI)
(CD PLAY mode)
1.3 Vp-p
200 mV/DIV, 500 ns/DIV
2 IC101 wf (XO)
(CD PLAY mode)
59.1 ns 3.3 Vp-p
1 V/DIV, 20 ns/DIV
Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
• f: internal component.
•2: nonflammable resistor.
•5: fusible resistor.
•C: panel designation.
•H: adjustment for repair.
•A: B+ Line.
•B: B– Line.
•Voltages are taken with aVOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
– BD90 BOARD –
No mark: CD PLAY
– Other Section –
No mark: FM
•Circled numbers refer to waveforms.
•Signal path.
F: TUNER (FM)
f: TUNER (AM)
J: CD
d: AUX
: AUDIO
•Abbreviation
AR : Argentine model
CND : Canadian model
E2 : 120V AC area in E model
E51 :Chilean and Peruvian models
MX : Mexican model
RU : Russian model
SP : Singapore model
Note on PrintedWiring Boards:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
• f: internal component.
•: Pattern from the side which enables seeing.
•Indication of transistor.
THIS NOTE IS COMMON FOR PRINTEDWIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
SECTION 6
DIAGRAMS
B
These are omitted.
CE
Q
C
BThese are omitted. E
Q
MAIN board DAB board (UK)
REG board
PANEL board
HP board
AUX board
KEY board
BD90 board
PT board
AMP board
Ver. 1.3
Note:
The components identi-
fied by mark 0or dot-
ted line with mark 0are
critical for safety.
Replace only with part
number specified.
Note:
Les composants identifiés
par une marque 0sont cri-
tiques pour la sécurité.
Neles remplacer quepar une
piéce portant le numéro
spécifié.

2020
HCD-GS10/GS30DAB
HCD-GS10/GS30DAB
6-1. BLOCK DIAGRAM — BD/DRIVER SECTION —
: CD
Signal Path
(OPEN)
(CLOSE)
A
MAIN
SECTION
(Page 22)
OPEN
CLOSE
M
OPTICAL PICK-UP
BLOCK
(KSM-213DCP)
AUTOMATIC
POWER
CONTROLLER
Q301
AVDD (+3.3V)
+1.7V
LD
GND
FOCUS
COIL
F+
F
T+
T
SP+
SP
SL+
SL
TRACKING
COIL
IC401
S201
(LIMIT)
X102
16.934MHz
DVDD (+3.3V)
+1.7V
SL/SP MOTOR
DRIVER
IC101
RF AMP,DSP,MP3
26
27
18
17
VR
PD
2
1
12
11
24
MUTE
IN4'
IN3'
IN1
IN2'
VO4+
VO4-
VO3+
VO3-
VO1+
VO1-
VO2-
VO2+
M
M
(SPINDLE)
(SLED)
VCC
VC
A
B
C
D
E
F
DETECTOR
FNI 1 (A)
FPI 1 (B)
FNI 2 (C)
FPI 2 (D)
TNI (E)
TPI (F)
100
98
LDo
91
MDI
92
FOo
9
IO0
20
27
RO
30
LO
24 XO
23 XI
95
97
94
96
L-OUT
R-OUT
20 TRo
10
3DMO
13
BIAS
VREF
11
23 VRo
84
9FMO
12
7
DVDD (3.3V)+1.5V
IC201
SYSTEM CONTROLLER
IC701
(1/2)
5 1
3
+1.5V
REG
FOCUS/TRACKING
COIL DRIVER
VSTBY
CD MECHANISM DECK
BLOCK
FOCUS COIL
DRIVE
TRACKING COIL
DRIVE
SLED MOTOR
DRIVE
SPINDLE
MOTOR
DRIVE
15
16
12
11
7
8
5
6
4
1
3
2
10
13
14
9
PIO0
BUS0
BUS1
BUS2 (SO)
BUS3 (SI)
BUCK (CLK)
CCE
RST
SBSY
I-REQ
IO-BUS0
IO-BUS1
IO-BUS2
IO-BUS3
O-BUCK
O-CCEN
O-XRST
I-SBSY
O-MMUTE
REQ
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
RST
SBSY
M-MUTE
48
38
39
40
41
42
43
37
54
3
5
6
7
8
17
18
19
43
4
IC601
2
4
9
7
CD
LOADING
MOTOR
DRIVE
I-TRYSW-OPEN 11
I-TRYSW-CLOSE 12
O-TRY-OPEN 20
O-TRY-CLOSE 21
DVDD (3.3V)
AVDD (3.3V)
VM (7V)
VM (7V)
M401
M402