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TABLE OF CONTENTS
1. SERVICING NOTES
.................................................. 3
2. GENERAL
Index to Parts and Controls ............................................... 5
3. DISASSEMBLY ............................................................ 7
4. TEST MODE ................................................................. 14
5. ELECTRICAL ADJUSTMENTS
MD Section ........................................................................ 20
Tuner Section ..................................................................... 25
CD Section ......................................................................... 26
6. DIAGRAMS
6-1. Block Diagrams
CD Section ......................................................................... 29
Tuner Section ..................................................................... 31
MD Section ........................................................................ 35
Main Section ...................................................................... 39
6-2. Schematic Diagram Ð Tuner Section Ð
(AEP, G, UK model) .......................................................... 44
6-3. Printed Wiring Board Ð Tuner Section Ð
(AEP, G, UK model) .......................................................... 46
6-4. Printed Wiring Board Ð Tuner Section Ð
(EXCEPT AEP, G, UK model) .......................................... 47
6-5. Schematic Diagram Ð Tuner Section Ð
(EXCEPT AEP, G, UK model) .......................................... 48
6-6. Printed Wiring Board Ð CD Section Ð ............................... 50
6-7. Schematic Diagram Ð CD Section Ð .................................. 53
6-8. Printed Wiring Board ÐMD Section Ð ............................... 56
6-9. Schematic Diagram ÐMD Section Ð .................................. 59
6-10. Schematic Diagram Ð Digital Section Ð ............................ 63
6-11. Printed Wiring Boards Ð Digital Section Ð ........................ 67
6-12. Schematic Diagram Ð Relay Section Ð .............................. 70
6-13. Printed Wiring Board Ð Relay Section Ð ........................... 73
6-14. Printed Wiring Board Ð Main Section Ð ............................ 76
6-15. Schematic Diagram Ð Main Section Ð ............................... 79
6-16. Schematic Diagram Ð Power Section Ð ............................. 83
6-17. Printed Wiring Boards Ð Power Section Ð ......................... 87
6-18. Schematic Diagram Ð Power AMP Section Ð .................... 92
6-19. Printed Wiring Boards Ð Power AMP Section Ð ................ 95
6-20. Schematic Diagram Ð Panel Section Ð ............................... 99
6-21. Printed Wiring Boards Ð Panel Section Ð ........................ 103
6-22. IC Pin Function Description ............................................ 109
7. EXPLODED VIEWS ................................................. 123
8. ELECTRICAL PARTS LIST .................................. 132
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
Tourist model: 76.0 Ð 108.0 MHz (50 kHz step)
Other models: 87.5 Ð 108.0 MHz (50 kHz step)
Aerial FM lead aerial
Aerial terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
German model:
AM: 522 Ð 1,611 kHz
(with the interval set at 9 kHz)
AEP, UK models:
MW: 522 Ð 1,611 kHz
(with the interval set at 9 kHz)
LW: 144 Ð 288 kHz
(with the interval set at 3 kHz)
Tourist model:
AM: 531 Ð 1,602 kHz
(with the interval set at 9 kHz)
530 Ð1,710 kHz
(with the interval set at 10 kHz)
Malaysia, Singapore,
Saudi Arabia,
Hong Kong models:
MW: 531 Ð 1,602 kHz
(with the interval set at 9 kHz)
530 Ð 1,710 kHz
(with the interval set at 10 kHz)
SW: 5.95 Ð 17.90 MHz
Aerial AM loop aerial
External aerial terminals
Intermediate frequency 450 kHz
General
Power requirements 220 Ð 230 V AC, 50/60 Hz
(AEP, German model)
110 Ð 120 V or 220 Ð 240 V AC,
50/60 Hz Adjustable with the
voltage selector (Other model)
Power consumption 85 watts (Tourist model)
130 watts (Other models)
Dimensions
Amplifier/Tuner/MD/CD section:
Approx. 280 ´ 240 ´ 360 mm
(11
1/8 ´ 9 1/2 ´ 14 1/4 in) (w/h/d) incl.
projecting parts and
controls
(U.K., Hong Kong model)
Approx. 280 ´ 240 ´ 350 mm
(11
1/8 ´ 9 1/2 ´ 13 7/8 in) (w/h/d) incl.
projecting parts and
controls (Other models)
Mass
Amplifier/Tuner/MD/CD section:
Approx. 9.4 kg
(20 lb 12 oz)
Supplied accessories: AM loop aerial (1)
Remote RM-S5MD (1)
Sony SUM-3 (NS)
batteries (2)
FM lead aerial (1)
Speaker cords (2)
Design and specifications are subject to change without notice.
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SECTION 1
SERVICING NOTES
MODEL IDENTIFICATION
Ñ BACK PANEL Ñ
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! 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 PUB-
LISHED BY SONY.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
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, ob-
serve from more than 30 cm away from the objective lens.
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 soldering iron around 270 ûC during re-
pairing.
·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 pro-
cedures other than those specified herein may result in
hazardous radiation exposure.
Laser component in this product is capable of emitting radia-
tion exceding the limit for Class 1.
This appliance is classified as a
CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on the
rear exterior.
This caution label
is located inside
the unit. Note:
Be sure to connect all wires (including FFC) in the MD
section before applying power or ICs may be damaged.
MODEL PARTS No
AEP model 4-984-208-1¹
UK model 4-984-208-2¹
Saudi Arabia, Singapore, 4-984-208-3¹
Malaysia model
German model 4-984-208-4¹
Hong Kong model 4-984-208-5¹
Tourist model 4-984-208-7¹
Parts No.
