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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.
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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 µF AC
voltmete r (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 ËšC 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
Ã- 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.