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Specifications (continued)
Inputs
MD/VIDEO (AUDIO) IN: voltage 450 mV/250mV,
(phono jacks) impedance 47 kilohms
MIX MIC: (phone jack) sensitivity 1 mV, impedance 10kilohms
Outputs
MD OUT: voltage 250 mV,
(phono jacks) impedance 1 kilohms
PHONES: accepts headphones of 8 ohms
(stereo phone jack) or more
SPEAKER:
E models: accepts impedance of 6 to 16 ohms
Other models: accepts impedance of 8 to 16 ohms
SUPER WOOFER (GRX9900/RXD9: US models): Voltage 1 V, impedance 1 kilohm
CD player section
System Compact disc and digital audio system
Laser Semiconductor laser ( l=780nm)
Emission duration: continuous
Laser output Max. 44.6 mW*
*This output is the value measured at
distance of 200 mm from the objective
lens surface on the Optical Pick-up
Block with 7 mm aperture.
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
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength 600 nm
Output Level -18 dBm
Tape player section
Recording system 4-track 2-channel stereo
Frequency response 40 - 13,000 Hz (±3 dB),
(DOLBY NR OFF) using Sony TYPE I cassette 40 - 14,000 Hz (±3 dB),
using Sony TYPE II cassette
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner sectionTuning range 87.5 - 108.0 MHz
Antenna FM lead antenna
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz
UKV tuner section (3 band (FM-AM-UKV) models only)Tuning range 65.0 - 74.0 MHz Stereo Plus
AM tuner sectionTuning range
2 Band type:
US model: 530 - 1,710 kHz(with the interval set at 10 kHz)
531 - 1,710 kHz
(with the interval set at 9 kHz)
AEP and UK models: 531 - 1,602 kHz
(with the interval set at 9 kHz)
Other models: 531 - 1,602 kHz (with the interval set at 9 kHz)
530 - 1,710 kHz
(with the interval set at 10 kHz) 3 Band type:
Saudi Arabia model:
MW: 531 - 1,602 kHz
(with the interval set at 9 kHz)
SW: 5.95 - 17.90 MHz (with the interval set at 5 kHz)
Other models:
MW: 531 - 1,602 kHz (with the interval set at 9 kHz)
530 - 1,710 kHz
(with the interval set at 10 kHz)
SW: 5.95 - 17.90 MHz (with the interval set at 5 kHz)
Antenna AM loop antenna
Antenna terminals External antenna terminal
Intermediate frequency 450 kHz
General
Power requirements
US model: 120 V AC, 60 Hz
AEP and UK models: 230 V AC, 50/60 Hz
Mexican model: 120 V AC, 50/60 Hz
Other models: 120 V, 220 V, or 230 - 240 V AC, 50/60 Hz
Adjustable with voltage selector
Power consumption
US model: 170 watts
AEP and UK models: 180 watts
Other models: 240 watts
Dimensions (w/h/d) Approx. 280 ´ 360 ´ 395 mm
(13
1/8 ´ 14 1/4 ´ 15 5/8 in.)
Mass
US model: Approx. 10.6 kg (23 lb 6 oz.)
AEP and UK models: Approx. 10.8 kg
Other models: Approx. 12.2 kg
Supplied accessories: AM loop antenna (1) Remote Commander (1)
Batteries (2)
FM lead antenna (1)
Speaker cords (2)
Front speaker pads (8)
Design and specifications are subject to change without notice.
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.
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1. SERVICING NOTES ............................................... 3
2. GENERAL
Location of Controls ....................................................... 6
Setting the Time .............................................................. 7
3. DISASSEMBLY ......................................................... 8
4. TEST MODE .............................................................. 11
5. MECHANICAL ADJUSTMENTS ....................... 14
6. ELECTRICAL ADJUSTMENTS
DECK Section ................................................................. 14
CD Section ...................................................................... 17
7. DIAGRAMS
7-1. Block Diagram Ð CD SERVO Section Ð ........................ 19
7-2. Block Diagram Ð TAPE DECK Section Ð ...................... 21
7-3. Block Diagram Ð MAIN Section Ð ................................. 23
7-4. Block Diagram Ð DISPLAY/KEY CONTROL/POWER SUPPLY Section Ð ........................................... 25
7-5. Note for Printed Wiring Boards and Schematic Diagrams ....................................................... 27
7-6. Printed Wiring Board Ð BD Board Ð .............................. 29
7-7. Schematic Diagram Ð BD Board Ð ................................ 31
7-8. Printed Wiring Boards Ð CD MOTOR Section Ð .......... 33
7-9. Schematic Diagram Ð CD MOTOR Section Ð .............. 35
7-10. Printed Wiring Board Ð AUDIO Board Ð ...................... 37
7-11. Schematic Diagram Ð AUDIO Board Ð ......................... 39
7-12. Printed Wiring Board Ð LEAF SW Board Ð .................. 41
7-13. Schematic Diagram Ð LEAF SW Board Ð ..................... 41
7-14. Printed Wiring Board Ð MAIN Board Ð ........................ 43
7-15. Schematic Diagram Ð MAIN Board (1/4) Ð .................. 45
7-16. Schematic Diagram Ð MAIN Board (2/4) Ð .................. 47
7-17. Schematic Diagram Ð MAIN Board (3/4) Ð .................. 49
7-18. Schematic Diagram Ð MAIN Board (4/4) Ð .................. 51
7-19. Printed Wiring Board Ð PANEL/CD SW Board Ð ........ 53
7-20. Schematic Diagram Ð PANEL (1/3)/CD SW Board Ð ..................................... 55
7-21. Schematic Diagram Ð PANEL (2/3) Board Ð ................ 57
7-22. Schematic Diagram Ð PANEL (3/3) Board Ð ................ 59
7-23. Printed Wiring Board Ð TRANS Board Ð ....................... 61
7-24. Schematic Diagram Ð TRANS Board Ð ......................... 62
7-25. Printed Wiring Board Ð SUB TRANS Board (RXD9) Ð .................................... 63
7-26. Schematic Diagram Ð SUB TRANS Board (RXD9) Ð .................................... 64
7-27. IC Pin Function Description ........................................... 69
8. EXPLODED VIEWS ................................................ 74
9. ELECTRICAL PARTS LIST ............................... 83
TABLE OF CONTENTS
SECTION 1
SERVICING NOTES
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k W 0.15 µF AC voltmeter(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, ÒmetallizedÓ 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 microampers.).
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 manufacturersÕ 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 ÒlimitÓ indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)
