HCD-GS300AV - Sony Audio Service Manual (repair manual). Page 2

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3-1. Cabinet Top ··································································· 8
3-2. Front Cabi Assy ····························································· 8
3-3. Back Panel Assy ···························································· 9
3-4. MAIN Board, PROLOGIC 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, Optical Pick-up (KSM-213BFN) ·············· 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 ·················································· 16
3-19. DOOR LED Board ······················································ 17

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7-1. Circuit Boards Location ·············································· 23
7-2. Block Diagrams ··························································· 24

– CD Section – ···························································· 24
– TUNER/TAPE DECK Section – ······························ 25
– SURROUND Section – ············································ 26
– AMP Section – ························································· 27
– DISPLAY/POWER Supply Section – ······················ 28

7-3. Printed Wiring Board  – CD Section – ························ 29
7-4. Schematic Diagram  – CD Section – ··························· 30
7-5. Printed Wiring Board

– CD MOTOR/SENSOR Section – ····························· 31

7-6. Schematic Diagram

– CD MOTOR/SENSOR Section – ····························· 32

7-7. Printed Wiring Board  – MAIN Section – ··················· 33
7-8. Schematic Diagram  – MAIN Section (1/3) – ············· 34
7-9. Schematic Diagram  – MAIN Section (2/3) – ············· 35
7-10. Schematic Diagram  – MAIN Section (3/3) – ············· 36
7-11. Printed Wiring Board  – AMP Section – ····················· 37
7-12. Schematic Diagram  – AMP Section – ························ 38
7-13. Printed Wiring Board  – SURROUND Section – ········ 39
7-14. Schematic Diagram  – SURROUND Section – ·········· 40
7-15. Printed Wiring Board  – DISPLAY Section – ············· 41
7-16. Schematic Diagram  – DISPLAY Section – ················ 42
7-17. Printed Wiring Board  – POWER Section – ················ 43
7-18. Schematic Diagram  – POWER Section – ·················· 44
7-19. IC Block Diagrams ······················································ 45
7-20. IC Pin Function Description ········································ 48

8-1. General Section ··························································· 53
8-2. Front Panel Section ····················································· 54
8-3. Chassis Section ···························································· 55
8-4. Mechanism Deck Section-1 (CDM64B-K1BD47A) ·· 56
8-5. Mechanism Deck Section-2 (CDM64B-K1BD47A) ·· 57
8-6. Base Unit Section (BU-K1BD47A) ···························· 58

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Tuning range
North American model:

530 – 1,710 kHz
(with the interval set at
10 kHz)
531 – 1,710 kHz
(with the interval set at
9 kHz)

Other model:

531 – 1,602 kHz
(with the interval set at
9 kHz)
530 – 1,710 kHz
(with the interval set at
10 kHz)

Antenna

AM loop antenna

Antenna terminals

External antenna terminal

Intermediate frequency

450 kHz

Power requirements
North American model:

120 V AC, 60 Hz

Australian model:

220 – 240 V AC,
50/60 Hz

Power consumption:

180 watts

Dimensions (w/h/d) incl. projecting parts and controls

Approx. 280 

× 325 ×

465 mm

Mass:

Approx. 9.1 kg

Supplied accessories:

Remote commander (1)
Batteries (2)
AM loop antenna (1)
FM lead antenna (1)
Rear speaker cords
(2)
Center speaker pads
(attached to the backside
of the center speaker)
(2)

Design and specifications are subject to change
without notice.

FM stereo, FM/AM superheterodyne tuner

Tuning range

87.5 – 108.0 MHz

Antenna

FM lead antenna

Antenna terminals
North American model:

75 ohms unbalanced

Australian model:

75 ohms balanced

Intermediate frequency

10.7 MHz