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3 7 63 1515 0
SERVICE MANUAL
Ver 1.2 2003. 10
• HCD-GX20 is the tuner, deck, CD and
amplifier section in MHC-GX20.
TE
L 13942296513
AUDIO POWER SPECIFICATIONS:
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohms loads both channels driven, from
120 – 10,000 Hz; rates 60 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Total harmonic distortion less than 0.07%
Amplifier section
Continuous RMS power output (reference)
Total harmonic distortion less than 0.07%
Inputs
AUDIO INPUT (phono jack):
Outputs
PHONES (stereo mini jack):
Front speaker:
CD player section
System
www
Laser
.
Sony Corporation
9-873-622-03
2003J16-1
Home Audio Company
© 2003.10
Published by Sony Engineering Corporation
http://www.xiaoyu163.com
Frequency response
Wavelength
Signal-to-noise ratio
Dynamic range
Tape deck section
Recording system
Frequency response
(6 ohms at 1 kHz, 30 W)
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
60 + 60 watts (6 ohms at
1 kHz, 10% THD)
Tuning range
Antenna
(6 ohms at 1 kHz, 30 W)
Antenna terminals
Intermediate frequency
AM tuner section
voltage 450 mV,
impedance 47 kilohms
Tuning range
accepts headphones of
8 ohms or more
Antenna
accepts impedance of 6 to
Antenna terminals
16 ohms
Intermediate frequency
Compact disc and digital
audio system
Semiconductor laser
(λ=780 nm)
Emission duration:
x
ao
u163
y
continuous
i
http://www.xiaoyu163.com
HCD-GX20
2 9
8
Model Name Using Similar Mechanism
CD
CD Mechanism Type
Section
Optical Pick-up Name
Tape deck
Model Name Using Similar Mechanism
Section
Tape Transport Mechanism Type
Q Q
3
6 7
1 3
1 5
SPECIFICATIONS
2 Hz – 20 kHz (±0.5 dB)
780 – 790 nm
More than 90 dB
More than 90 dB
4-track 2-channel stereo
50 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassette
87.5 – 108.0 MHz
FM lead antenna
75 ohms unbalanced
10.7 MHz
530 – 1,710 kHz (with the
interval set at 10 kHz)
531 – 1,710 kHz (with the
interval set at 9 kHz)
AM loop antenna
External antenna terminal
450 kHz
MINI HI-FI COMPONENT SYSTEM
co
.
9 4
2 8
US Model
Canadian Model
HCD-DX10
CDM58F-K6
KSM-213DCP/Z-NP
NEW
CWL43FF48
0 5
8
2 9
9 4
2 8
General
Power requirements
120 V AC, 60 Hz
Power consumption
105 watts
Approx. 280 × 325 × 412 mm
Dimensions (w/h/d)
Mass
Approx. 8.5 kg
Supplied accessories:
Remote Commander (1)
Batteries (2)
AM loop antenna (1)
FM lead antenna (1)
Front speaker pads (8)
Design and specifications are subject to change
without notice.
m
9 9
9 9
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Table of Contents
Related Manuals for Sony HCD-GX20
Summary of Contents for Sony HCD-GX20
- Page 1 HCD-GX20 3 7 63 1515 0 SERVICE MANUAL US Model Canadian Model Ver 1.2 2003. 10 • HCD-GX20 is the tuner, deck, CD and amplifier section in MHC-GX20. Model Name Using Similar Mechanism HCD-DX10 CD Mechanism Type CDM58F-K6 Section...
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Page 2: Leakage Test
Leakage current can be measured by any one of three methods. CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY A commercial leakage tester, such as the Simpson 229 or RCA DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU WT-540A. -
Page 3: Table Of Contents
HCD-GX20 3 7 63 1515 0 TABLE OF CONTENTS NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 1. GENERAL ·········································································· 4 The laser diode in the optical pick-up block may suffer electrostatic 2. DISASSEMBLY ································································ 6 break-down because of the potential difference generated by the 2-1. -
Page 4: General
HCD-GX20 SECTION 1 GENERAL 3 7 63 1515 0 This section is extracted from instruction manual. Main unit ALPHABETICAL ORDER BUTTON DESCRIPTIONS ?/1 (power) 1 A – E G – Z Z OPEN/CLOSE qs AUDIO jacks ws (24) GAME wf (22, 24) -
Page 5: Setting The Clock
HCD-GX20 3 7 63 1515 0 Remote Control Setting the clock ALPHABETICAL ORDER Press ?/1 to turn on the system. Press CLOCK/TIMER SET on the A – G O – Z remote. CD ql (11, 12, 18) ON/OFF qh (20) CLEAR w;... -
Page 6: Disassembly
HCD-GX20 SECTION 2 DISASSEMBLY 3 7 63 1515 0 Note : Disassemble the unit in the order as shown below. CASE (TOP) CD DOOR FRONT PANEL SECTION CD MECHANISM DECK (CDM58F-K6) TAPE MECHANISM DECK (CWL43FF48) REM BOARD AND PANEL BOARD... -
Page 7: Cd Door
HCD-GX20 3 7 63 1515 0 2-2. CD Door 4 CD door CD mechanism deck (CDM58F-K6) 1 Turn the pulley to the direction of arrow. Front panel side pulley 2 Pull-out the disc tray. L 13942296513 2-3. Front Panel Section 6 connector 2p (CN682) 4 screw (+BVTP 3 ×... -
Page 8: Cd Mechanism Deck (Cdm58F-K6)
HCD-GX20 3 7 63 1515 0 2-4. CD Mechanism Deck (CDM58F-K6) 1 screw (+BVTP 3 × 10) 4 CD mechanism deck (CDM58F-K6) 2 connector 7p (CN734) L 13942296513 2-5. Tape Mechanism Deck (CWL43FF48) 1 six screws (+BVTP 2.6 × 8) -
Page 9: Rem Board And Panel Board
HCD-GX20 3 7 63 1515 0 2-6. REM Board and PANEL Board two claws claw REM board 3 eight screws 6 REM board (+BVTP 2.6 ¥ 8) three claws 5 Remove the soldering (three portions) 4 connector 13p (CN662) -
Page 10: Back Panel Section
HCD-GX20 3 7 63 1515 0 2-8. Back Panel Section 5 back panel 1 three screw (+BVTP 3 × 10) 3 connector 3p (CN903) 2 two screw (+BVTT 3 × 6) L 13942296513 2-9. SUB TRANS Board and VIDEO OUT Board 3 screw (+BVTP 3 ×... -
Page 11: Main Board
HCD-GX20 3 7 63 1515 0 2-10. MAIN Board 4 MAIN board 1 screw (+BVTT 3 × 6) 3 connector 13p (CN502) Main board L 13942296513 2 connector 13p (CN503) 2-11. POWER Board 1 Two screws (+BVTT 3 × 16) 2 Three screws (+BVTT 3 ×... -
Page 12: Trans Board
HCD-GX20 3 7 63 1515 0 2-12. TRANS Board 2 two screws (+BVTT 4× 6) 1 two screws (+BVTT 4× 6) 3 TRANS board L 13942296513 2-13. CD Board and DRIVER Board 2 wire (flat type) 3 Screw (+BTTP M2.6 ) -
Page 13: Spdl Board
HCD-GX20 3 7 63 1515 0 2-14. SPDL Board 1 Remove solder (four places) 2 Remove solder (four places) 3 SPDL board L 13942296513 2-15. Optical Pick-up (KSM-213DCP) 1 screw (+PTPWH M2.6) 2 holder (BU) assy 6 screw (DIA. 12) -
Page 14: Motor Board, Address Sensor Board
HCD-GX20 3 7 63 1515 0 2-16. MOTOR Board, ADDRESS SENSOR Board 2 screw (+PTPWH 2.6 × 8) 5 two screws (+BVTP 2.6 × 8) 7 MOTOR board 6 Remove the two solderings of motor. 8 screw (+BVTP 2.6 × 8) -
Page 15: Test Mode
HCD-GX20 SECTION 3 TEST MODE 3 7 63 1515 0 [Change-over of AM Tuner Step between 9 kHz and 2) Error display 10 kHz] Disc error • A step of AM channels can be changed over between 9 kHz and... - Page 16 HCD-GX20 3 7 63 1515 0 [GC Test Mode] [MC Test Mode] • All fluorecent segments and LEDs are tested. • This mode is used to test the function of the equalizer. • Keyboard check. Procedure: Procedure: 1. Press ?/1 button to turn the set ON.
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Page 17: Electrical Adjustments
HCD-GX20 SECTION 4 ELECTRICAL ADJUSTMENTS 3 7 63 1515 0 AM IF Adjustment TUNER SECTION FM Tuned Level Adjustment AM RF Signal generator FM RF Signal generator 75 Ω coaxial 30% amplitude Carrier frequency : 98 MHz modulation by... - Page 18 HCD-GX20 3 7 63 1515 0 CD SECTION Note : 1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10MΩ impedance.
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Page 19: Diagrams
HCD-GX20 SECTION 5 DIAGRAMS 3 7 6 3 1 5 1 5 0 5-1. Circuit Boards Location THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) -
Page 20: Block Diagrams
HCD-GX20 5-2. Block Diagrams 3 7 6 3 1 5 1 5 0 TUNER Section OPTICAL PICK-UP IC731 BLOCK FOCUS/TRACKING/ IC751 SLED/SPINDLE SERVO, DIGITAL SIGNAL PROCESSOR RF AMP DETECTOR CD-L MAIN RF SM EFMI LCHO SECTION FIN 1 EFMO... - Page 21 HCD-GX20 MAIN Section 3 7 6 3 1 5 1 5 0 R CH JK691 PHONES IC301 IC501 SOUND PROCESSOR Q331 POWER AMP MUTE CD-L SECTION FE101 IC101 OUT1 FM FRONT-END JK103 AM/FM IF MPX CF101 CF102 10.7MHz Q101 10.7MHz...
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Page 22: Printed Wiring Boards - Cd Section (1/2)
HCD-GX20 5-3. Printed Wiring Boards – CD Section (1/2) – • See page 19 for Circuit Boards Location. 3 7 6 3 1 5 1 5 0 CD BOARD DRIVER • Semiconductor BOARD Location CN701 (Page 23) Ref. No. Location... -
Page 23: Printed Wiring Boards - Cd Section (2/2)
HCD-GX20 5-4. Printed Wiring Boards – CD Section (2/2) – • See page 19 for Circuit Boards Location. 3 7 6 3 1 5 1 5 0 C712 1 3 9 4 2 2 9 6 5 1 3... -
Page 24: Schematic Diagram - Cd Section
HCD-GX20 5-5. Schematic Diagram – CD Section – • See page 34,35 for IC Block Diagrams. • See page 19 for Waveforms. 3 7 6 3 1 5 1 5 0 CD BOARD OPTICAL PICK-UP CN733 BLOCK (KSM-213DCP) LD DRIVER... -
Page 25: Printed Wiring Board - Main Section
HCD-GX20 5-6. Printed Wiring Board – MAIN Section – • See page 19 for Circuit Boards Location. 3 7 6 3 1 5 1 5 0 MAIN BOARD PANEL BOARD CD BOARD CN691 CN734 (Page 30) (Page 22) IC102 •... -
Page 26: Schematic Diagram - Main Section (1/4)
HCD-GX20 5-7. Schematic Diagram – MAIN Section (1/4) – • See page 34 for IC Block Diagrams. • See page 19 for Waveforms. 3 7 6 3 1 5 1 5 0 MAIN BOARD (1/4) +B SWITCH 11.8 11.9 ANTENNA FM75Ω... -
Page 27: Schematic Diagram - Main Section (2/4)
HCD-GX20 5-8. Schematic Diagram – MAIN Section (2/4) – • See page 19 for Waveforms. 3 7 6 3 1 5 1 5 0 MAIN BOARD MAIN BOARD MAIN BOARD MAIN BOARD MAIN BOARD (3/4) (1/4) (3/4) (1/4) (3/4) -
Page 28: Schematic Diagram - Main Section (3/4)
HCD-GX20 5-9. Schematic Diagram – MAIN Section (3/4) – • See page 34 for IC Block Diagrams. 3 7 6 3 1 5 1 5 0 IC804 MAIN BOARD (3/4) IC803 +5V REG SWITCH +5.6V REG 13.6 13.6 13.6 MAIN BOARD 13.6... -
Page 29: Schematic Diagram - Main Section (4/4)
HCD-GX20 5-10. Schematic Diagram – MAIN Section (4/4) – 3 7 6 3 1 5 1 5 0 MAIN BOARD (3/4) 49 50 52 53 54 58596061 62636465 6671 67 69 70 74 75 76 77 78 79 MAIN BOARD... -
Page 30: Printed Wiring Boards - Panel Section
HCD-GX20 5-11. Printed Wiring Boards – PANEL Section – • See page 19 for Circuit Boards Location. 3 7 6 3 1 5 1 5 0 BOARD CN733 PANEL BOARD (Page 22) DISC 1 DISC 2 TUNER/BAND IC601 DISC 3... -
Page 31: Schematic Diagram - Panel Section
HCD-GX20 5-12. Schematic Diagram – PANEL Section – • See page 36 for IC Pin Function Description. • See page 19 for Waveforms. 3 7 6 3 1 5 1 5 0 KEY BOARD BOARD SEL2410G GAME MIXING MAIN BOARD(4/4) -
Page 32: Printed Wiring Boards - Power/Trans Section
HCD-GX20 5-13. Printed Wiring Boards – POWER/TRANS Section – • See page 19 for Circuit Boards Location. 3 7 6 3 1 5 1 5 0 POWER BOARD SUB TRANS BOARD IC501 IC901 POWER TRANSFORMER (SUB) (11) 1-684-302- 1 3 9 4 2 2 9 6 5 1 3... -
Page 33: Schematic Diagram - Power/Trans Section
HCD-GX20 5-14. Schematic Diagram – POWER/TRANS Section – 3 7 6 3 1 5 1 5 0 TRANS BOARD POWER BOARD POWER TRASFORMER (MAIN) 6.3A/125V D3SBA20-4101 IC501 6.3A/125V (1/2) 6.3A/125V POWER AMP -0.2 Q501,551 OVER LOAD DETECT 2200 (1/2) STK402-070S -0.2... - Page 34 HCD-GX20 3 7 6 3 1 5 1 5 0 • IC Block Diagrams IC781 MN1469XH (CD BOARD) IC731 LA9242M (CD BOARD) 58 57 55 54 53 52 51 50 RF DET FIN2 FINI I / V DGND ∝-COM...
- Page 35 HCD-GX20 3 7 63 1515 0 IC102 LC72131D (MAIN BOARD) PHASE DETECTOR CHARGE PUMP POWER REFERENCE UNLOCK DIVIDER DETECTOR RESET SWALLOW COUNTER 1/16, 1/17 4BITS 12BITS PROGRAMMABLE DRIVER UNIVERSAL DATA SHIFT REGISTER LATCH INTERFACE COUNTER 3 4 5 6...
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Page 36: Ic Pin Function Description
HCD-GX20 3 7 63 1515 0 5-15. IC Pin Function Description • IC601 LC876662W-5Z15 Master Control (PANEL Board) Pin No. Pin Name Description PWR LED PWR LED control signal output P.S.RELAY Standby relay control signal output SYS MUTE System muting signal output... - Page 37 HCD-GX20 3 7 63 1515 0 Pin No. Pin Name Description TUNER STEREO Stereo tuning signal input CD OPEN CD tray open switch signal input TAPE PHOTO A A deck photo sensor singanl input TAPE PHOTO B B deck photo sensor singanl input...
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Page 38: Exploded Views
HCD-GX20 SECTION 6 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number The components identified by mark 0 or have some differences from the original one. -
Page 39: Front Panel Section
HCD-GX20 Ver 1.2 2003.10 3 7 63 1515 0 6-2. Front Panel Section FLD601 not supplied L 13942296513 not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4746-787-A PANEL ASSY, FRONT 4-233-981-01 CASSETTE DOOR SPRING (L) -
Page 40: Main Board Section
HCD-GX20 3 7 63 1515 0 6-3. MAIN Board Section F919 T911 F920 supplied F914 not supplied L 13942296513 not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 0 F914 1-751-688-11 WIRE (FLAT TYPE) (13 CORE) 1-533-454-11 FUSE, GLASS TUBE (DIA. -
Page 41: Cd Mechanism Deck Section (Cdm58F-K6)
HCD-GX20 Ver 1.1 2003.05 3 7 63 1515 0 6-4. CD Mechanism Deck Section (CDM58F-K6) M721 supplied supplied supplied not supplied L 13942296513 supplied supplied Optocal Pick-up section Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-218-254-21 SCREW (M2.6), +PTPWH... -
Page 42: Electrical Parts List
HCD-GX20 SECTION 7 ADDRESS SENSOR ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE: • Due to standardization, replacements in the • COILS When indicating parts by reference number, parts list may be different from the parts uH: µH please include the board name. - Page 43 HCD-GX20 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C774 1-126-300-11 CERAMIC 0.01uF 30.00% 16V R717 1-249-439-11 CARBON 1/4W C775 1-162-282-31 CERAMIC 100PF R718 1-249-436-11 CARBON 1/4W C776 1-162-282-31 CERAMIC...
- Page 44 HCD-GX20 DRIVER MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R777 1-249-421-11 CARBON 2.2K 1/4W F R660 1-249-429-11 CARBON 1/4W R778 1-249-421-11 CARBON 2.2K 1/4W F R661 1-249-419-11 CARBON 1.5K...
- Page 45 HCD-GX20 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C126 1-162-306-11 CERAMIC 0.01uF 30.00% 16V C236 1-130-485-00 MYLAR 0.015uF C127 1-162-306-11 CERAMIC 0.01uF 30.00% 16V C237 1-130-485-00 MYLAR 0.015uF...
- Page 46 HCD-GX20 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C374 1-137-189-11 FILM 0.18uF 5.00% 50V < DIODE > C375 1-137-189-11 FILM 0.18uF 5.00% 50V C376 1-126-964-11 ELECT 10uF 20.00% 50V...
- Page 47 HCD-GX20 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < COIL > < RESISTOR > L201 1-424-849-11 COIL, OSCILLATION (BIAS) R101 1-249-407-11 CARBON 1/4W F R102 1-249-415-11 CARBON 1/4W F <...
- Page 48 HCD-GX20 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R215 1-249-422-11 CARBON 2.7K 1/4W F R283 1-249-425-11 CARBON 4.7K 1/4W F R218 1-249-421-11 CARBON 2.2K 1/4W F R284 1-249-415-11 CARBON...
- Page 49 HCD-GX20 MAIN MOTOR PANEL 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R355 1-249-417-11 CARBON 1/4W F < RELAY > R356 1-249-413-11 CARBON 1/4W F R357 1-249-429-11 CARBON 1/4W 1-755-373-11 RELAY...
- Page 50 HCD-GX20 PANEL 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C631 1-247-855-11 CASRBON 1/4W < DIODE > C632 1-247-855-11 CASRBON 1/4W C681 1-162-294-31 CERAMIC 0.001uF LED610 8-719-311-60 DIODE SEL2810D-C (CD)
- Page 51 HCD-GX20 PANEL POWER 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R673 1-249-433-11 CARBON 1/4W C543 1-164-159-21 CERAMIC 0.1uF R674 1-249-429-11 CARBON 1/4W C544 1-126-942-61 ELECT 1000uF 20.00% 25V R675...
- Page 52 HCD-GX20 POWER SPDL SUB TRANS TRANS VIDEO OUT 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R556 1-249-431-11 CARBON 1/4W < RELAY > R557 1-249-441-11 CARBON 100K 1/4W 0 R558 1-217-151-00 METAL 0.22...
- Page 53 HCD-GX20 Ver 1.1 2003.05 3 7 63 1515 0 Ref. No. Part No. Description Remarks MISCELLANEOUS ************** 1-773-119-11 WIRE (FLAT TYPE) (19 CORE) 1-796-360-11 DECK, MECH 1-751-688-11 WIRE (FLAT TYPE) (13 CORE) 0 104 1-783-532-11 CORD, POWER 1-791-983-12 WIRE (FLAT TYPE) (8 CORE)
- Page 54 HCD-GX20 3 7 63 1515 0 MEMO L 13942296513 u163 http://www.xiaoyu163.com...
- Page 55 HCD-GX20 3 7 63 1515 0 US Model Canadian Model SERVICE MANUAL Ver 1.1 2003.05 SUPPLEMENT-1 Subject: EXPLODED VIEW (OPTICAL PICK-UP SECTION) (SPM-03029) L 13942296513 u163 9-873-622-82 http://www.xiaoyu163.com...
- Page 56 HCD-GX20 3 7 63 1515 0 OPTICAL PICK-UP SECTION L 13942296513 M102 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 2-626-908-02 SHAFT, SLED X-2161-802-1 CHASSIS ASSY (DCP), TT 2-646-697-03 SHUTTER (F), LENS 2-627-003-01 GEAR (B) (RP)
- Page 57 HCD-GX20 3 7 63 1515 0 MEMO L 13942296513 u163 http://www.xiaoyu163.com...
- Page 58 HCD-GX20 3 7 63 1515 0 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page.