DOWNLOAD Sony HCD-GS200 / MHC-GS200 Service Manual ↓ Size: 7.2 MB | Pages: 64 in PDF or view online for FREE

Model
HCD-GS200 MHC-GS200
Pages
64
Size
7.2 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-gs200-mhc-gs200.pdf
Date

Sony HCD-GS200 / MHC-GS200 Service Manual ▷ View online

HCD-GS200
US Model
Canadian Model
SERVICE MANUAL
COMPACT DISC DECK RECEIVER
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-874-022-03
2003J16-1
© 2003.10
HCD-GS200 is the Amplifier, CD player, Tape
Deck and Tuner section in MHC-GS200.
SPECIFICATIONS
Ver 1.2  2003. 10
Model Name Using Similar Mechanism
HCD-GS300AV
CD
CD Mechanism Type
CDM64B-K1BD47A
Section
Base Unit Name
BU-K1BD47A
Optical Pick-up Name
KSM-213BFN
TAPE
Model Name Using Similar Mechanism
HCD-GS300AV
Section
Tape Transport Mechanism Type
CMAL1Z221
— Continued on next page —
Amplifier section
U.S.A. models:
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohms loads both channels driven, from
120 – 10,000 Hz; rated 60 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Continuous RMS power output
60 + 60 watts
(6 ohms at 1 kHz,
10% THD)
Total harmonic distortion less than 0.09%
(6 ohms at 1 kHz,
35 watts)
Inputs
VIDEO (MD) IN (phono jacks):
voltage 250 mV/450 mV,
impedance 47 kilohms
GAME (AUDIO) IN (phono jack):
voltage 450 mV,
impedance 47 kilohms
AUDIO IN (phono jacks): 450mV 47 kilohms
Outputs
PHONES (stereo phono jack):
accepts headphones of
8 ohms or more
FRONT SPEAKER:
accepts impedance of 6 to
16 ohms
CD player section
System
Compact disc and digital
audio system
Laser
Semiconductor laser
(
λ = 780 nm)
Emission duration:
continuous
Frequency response
2 Hz – 20 kHz (
±0.5 dB)
Wavelength
780 – 790 nm
Signal-to-noise ratio
More than 90 dB
Dynamic range
More than 90 dB
OPTICAL OUT (CD)
(Square optical connector jack, rear panel)
Wavelength
660 nm
Output Level
–18 dBm
Tape player section
Recording system
4-track 2-channel stereo
Frequency response
40 – 13,000 Hz (
±3 dB),
using Sony TYPE I
cassette
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz
Antenna
FM lead antenna
Antenna terminals
North American model:
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
530 – 1,710 kHz
(with the interval set at
10 kHz)
531 – 1,710 kHz
(with the interval set at
9 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz
2
HCD-GS200
1. SERVICING NOTES
······················································· 4
2. GENERAL
·········································································· 5
3. DISASSEMBLY
································································ 7
3-1. Cabinet Top ··································································· 8
3-2. Front Cabi Assy ····························································· 8
3-3. Back Panel Assy ···························································· 9
3-4. MAIN Board ································································· 9
3-5. AMP Board ································································· 10
3-6. POWER Board ···························································· 10
3-7. Holder (LED-S), Bracket (Middle-R),
Power Bracket ····························································· 11
3-8. CD Mechanism Deck (CDM64B-K1BD47A) ············ 11
3-9. Base Unit (BU-K1BD47A),
D.SENSOR (OUT) Board, T.SENSOR Board ············ 12
3-10. D.SENSOR (IN) Board, LOAD SW Board,
L.T MOTOR Board ····················································· 12
3-11. CD LED Board ···························································· 13
3-12. BU Holder Assy ··························································· 13
3-13. CD Board ····································································· 14
3-14. Cassette Holder, Mech Deck (CMAL1Z221) ············· 14
3-15. Belt ·············································································· 15
3-16. DISPLAY Board ·························································· 15
3-17. KEY Board ·································································· 16
3-18. HEADPHONE Board, GAME LINK Board ··············· 16
3-19. DOOR LED Board ······················································ 17
4. TEST MODE
···································································· 18
5. MECHANICAL ADJUSTMENTS
····························· 19
6. ELECTRICAL  ADJUSTMENTS
······························ 19
7. DIAGRAMS
7-1. Circuit Boards Location ·············································· 23
7-2. Block Diagrams ··························································· 24
– CD Section – ···························································· 24
– TUNER/TAPE Section – ·········································· 25
– AMP Section – ························································· 26
– DISPLAY/POWER Section – ··································· 27
7-3. Printed Wiring Board  – CD Section – ························ 28
7-4. Schematic Diagram  – CD Section – ··························· 29
7-5. Printed Wiring Board
– CD MOTOR/SENSOR Section – ····························· 30
7-6. Schematic Diagram
– CD MOTOR/SENSOR Section – ····························· 31
7-7. Printed Wiring Board  – MAIN Section – ··················· 32
7-8. Schematic Diagram  – MAIN Section (1/3) – ············· 33
7-9. Schematic Diagram  – MAIN Section (2/3) – ············· 34
7-10. Schematic Diagram  – MAIN Section (3/3) – ············· 35
7-11. Printed Wiring Board  – AMP Section – ····················· 36
7-12. Schematic Diagram  – AMP Section – ························ 37
7-13. Printed Wiring Board  – DISPLAY Section – ············· 38
7-14. Schematic Diagram  – DISPLAY Section – ················ 39
7-15. Printed Wiring Board  – POWER Section – ················ 40
7-16. Schematic Diagram  – POWER Section – ·················· 41
7-17. IC Block Diagrams ······················································ 42
7-18. IC Pin Function Description ········································ 43
8. EXPLODED VIEWS
8-1. General Section ··························································· 48
8-2. Front Panel Section ····················································· 49
8-3. Chassis Section ···························································· 50
8-4. Mechanism Deck Section-1 (CDM64B-K1BD47A) ·· 51
8-5. Mechanism Deck Section-2 (CDM64B-K1BD47A) ·· 52
8-6. Base Unit Section (BU-K1BD47A) ···························· 53
9. ELECTRICAL PARTS LIST
······································· 54
TABLE OF CONTENTS
General
Power requirements
120 V AC, 60 Hz
Power consumption
120 watts
Dimensions (w/h/d) incl. projecting parts and controls
Approx. 280 
× 325 ×
465 mm
Mass
Approx. 8.7 kg
Supplied accessories:
Remote commander (1)
Batteries (2)
AM loop antenna (1)
FM lead antenna (1)
Design and specifications are subject to change
without notice.
3
HCD-GS200
SAFETY-RELATED COMPONENT 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.
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY  CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a
passive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable.  (See Fig. A)
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
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.
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.
LASER  DIODE  AND  FOCUS  SEARCH  OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveforms is output three times.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 
0
 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
4
HCD-GS200
SECTION 1
SERVICING NOTES
CD-TEXT TEST  DISC
This unit is able to display the test data (character information)
written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313: J-2501-126-A) is used
for checking the display.
To check, perform the following procedure.
Checking Method:
1. Press the
I/1
button to turn the power on, set the disc to the
disc table with the “test disc” label facing right, and chuck the
disc.
2. Press the 
[CD]
 button to set CD function, and press the
bB
button to
playback the disc.
3. The following will be displayed on the liquid crystal display.
Display : 1KHZ/0dB/L R
4. Pressing the 
[--       ]
 or 
[       +]
 button, select the track. The text
data of each track will be displayed.
For details of the displayed contents for each track, refer to “Table
1: CD-TEXT TEST DISC TEXT Data Contents”.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed properly.
These will be displayed as a space or a character resembling it.
Table 1: CD-TEXT TEST DISC TEXT Data Contents
(TRACKS No. 1 to 20: Normal Characters)
1
1kHz/0dB/L&R
2
20Hz/0dB/L&R
3
40Hz/0dB/L&R
4
100Hz/0dB/L&R
5
200Hz/0dB/L&R
6
500Hz/0dB/L&R
7
1kHz/0dB/L&R
8
5kHz/0dB/L&R
9
7kHz/0dB/L&R
10
10kHz/0dB/L&R
11
16kHz/0dB/L&R
12
18kHz/0dB/L&R
13
20kHz/0dB/L&R
14
1kHz/0dB/L&R
15
1kHz/–1dB/L&R
16
1kHz/–3dB/L&R
17
1kHz/–6dB/L&R
18
1kHz/–10dB/L&R
19
1kHz/–20dB/L&R
20
1kHz/–60dB/L&R
TRACK
No.
Displayed Contents
Note: Track No. 21 to 99 are not displayed.
.
>
CLEANING  OBJECTIVE  LENS  OF  OPTICAL  PICK-UP
• In cleaning the objective lens of optical pick-up, be sure the
following below.
(Figure A)
Note 1. In cleaning the lens, do not apply an excessive force.
As the optical pick-up is vulnerable, application of excessive
force could damage the lens holder.
Note 2. In cleaning, do not use a cleaner other than exclusive cleaning
liquid (KK-91 or isopropyl alcohol).
Note 3. Wipe the objective lens spirally from center toward outside. (See
Figure A)
2
Remove the 
magnet assy.
1
Open the torsion holder 
(magnet) in direction of 
arrow 
A
.
A
optical pick-up
bracket (top 60) hole
3
Put a cotton bud into 
the hole on the bracket 
(top 60) and clean the 
OP lens.
Page of 64
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Sony HCD-GS200 / MHC-GS200 Service Manual ▷ Download

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  • Here you can View online or download the Service Manual for the Sony HCD-GS200 / MHC-GS200 in PDF for free, which will help you to disassemble, recover, fix and repair Sony HCD-GS200 / MHC-GS200 Audio. Information contained in Sony HCD-GS200 / MHC-GS200 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.