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BASS BOOST +6 dB at 70 Hz Sampling Frequency 48 kHz EQ BASS:
100 Hz ~ 1.0 kHz (21 steps)
MID:
500 Hz ~ 5.0 kHz (21 steps)
TREBLE:
1.0 kHz ~ 10 kHz (21 steps)
Gain levels:
±10 dB, 1 dB step
FM tuner section
Tuning range 87.5 - 108.0 MHz Antenna terminals 75 ohms, unbalanced Sensitivity Mono: 18.3 dBf, 4.5 µV
Stereo: 38.3 dBf, 45 µV
Usable sensitivity 11.2 dBf, 2 µV (IHF) S/N Mono: 76 dB
Stereo: 70 dB
Harmonic distortion at 1 kHz Mono: 0.3 %
Stereo: 0.5 %
Separation 45 dB at 1 kHz Frequency response 30 Hz - 15 kHz +0.5/-2 dB Selectivity 60 dB at 400 kHz
AM tuner section
Tuning range With 10-kHz tuning scale:
530 - 1710 kHz d) (US, Canadian)
530 - 1610 kHzd) (Except US, Canadian)
With 9-kHz tuning scale:
531 - 1710 kHz
d) (US, Canadian)
531 - 1602 kHzd) (Except US, Canadian) Antenna Loop antenna Usable sensitivity 50 dB/m (at 1,000 kHz or 999 kHz) S/N 54 dB (at 50 mV/m) Harmonic distortion 0.5% (50 mV/m, 400 kHz)
Selectivity At 9 kHz: 35 dB
At 10 kHz: 40 dB
d)You can change the AM tuning scale to 9 kHz. After tuning in any AM
station, turn off the receiver. Hold down the TUNING + button and
press the
1/u button. All preset stations will be erased when you
change the tuning scale. To reset the scale to 10 kHz, repeat the
procedure.
Video section
Input 1 Vp-p 75 ohms Outputs 1 Vp-p 75 ohms
General
System Tuner section:
PLL quartz-locked digital synthesizer system
Preamplifier section:
Low- noise NF type equalizer
Power amplifier section:
Pure-complementary SEPP
Power requirements US and Canadian models :
120 V AC, 60 Hz
E, PX, Saudi Arabia models :
120/220/240 V AC selectable, 50/60 Hz
Singapore, Chinese, Malaysia models :
220 - 230 V AC, 50/60 Hz
Power consumption US, Singapore, Chinese, Malaysia: 290 W
Canadian: 480 VA
E, PX, Saudi Arabia: 310W
AC outlets 2 switched, total 100 W Dimensions 430 ´ 370 ´ 157.5 mm
(17 ´ 145/8 ´ 6 1/4 in.)
including projecting parts and controls
Mass (Approx.) 10.5 kg (23 lb 3 oz) Supplied accessories ¥ FM wire antenna (1)
¥ AM loop antenna (1)
¥ Remote commander RM-LJ301 (remote) (1)
¥ LR6 (size-AA) alkaline batteries (3)
¥ Audio/video/control S connecting cord (1)
¥ Control S connecting cord (1)
Design and specifications are subject to change without notice.
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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
PUBLISHED BY SONY.ATTENTION AU COMPOSANT AYANT RAPPORT
Ë LA SƒCURITƒ!
LES COMPOSANTS IDENTIFƒS PAR UNE MARQUE ! SUR LES
DIAGRAMMES SCHƒMATIQUES ET LA LISTE DES PIéCES SONT
CRITIQUES POUR LA SƒCURITƒ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIéSES SONY
DONT LES NUMƒROS SONT DONNƒS DANS CE MANUEL OU
DANS LES SUPPƒMENTS PUBLIƒS PAR SONY.
TABLE OF CONTENTS
After correcting the original service problem, perform the
following safety checks 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
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 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 2V AC range are suitable. (See
Fig. A)
SAFETY CHECK-OUT
To Exposed Metal
Parts on Set
0.15
µF 1.5k ½
AC
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
1. GENERAL ááááááááááááááááááááááááááááááááááááááááááááááááááá\
ááááááááááááááááááá 4
2. TEST MODEááááááááááááááááááááááááááááááááááááááááááááááááááá\
ááááááááá 6
3. DIAGRAMS
3-1. Circuit Boards Location ááááááááááááááááááááááááááááááááááááááááááááááááááá\
áá 7
3-2. Block Diagram Ñ Main Section Ñ ááááááááááááááááááááááááááááááááááá 9
3-3. Block Diagram Ñ Power Section Ñ ááááááááááááááááááááááááááááááá 11
3-4. Printed Wiring Board Ñ AMP Section Ñ ááááááááááááááááááááááá 13
3-5. Schematic Diagram Ñ AMP Section Ñ áááááááááááááááááááááááááá 15
3-6. Printed Wiring Board Ñ Video Section Ñ áááááááááááááááááááááá 17
3-7. Schematic Diagram Ñ Video Section Ñ ááááááááááááááááááááááááá 19
3-8. Printed Wiring Board ÑAUDIO Section Ñ áááááááááááááááááááá 21
3-9. Schematic Diagram Ñ AUDIO Section Ñ áááááááááááááááááááááá 23
3-10. Printed Wiring Board Ñ Input Section Ñ ááááááááááááááááááááááá 25
3-11. Schematic Diagram Ñ Input Section Ñ áááááááááááááááááááááááááá 27
3-12. Printed Wiring Board Ñ Display Section Ñ ááááááááááááááááááá 29
3-13. Schematic Diagram Ñ Display Section Ñ áááááááááááááááááááááá 31
3-14. Printed Wiring Board Ñ SPEAKER Section Ñ áááááááááááááá 33
3-15. Schematic Diagram Ñ SPEAKER Section Ñ ááááááááááááááááá 35
3-16. Printed Wiring Board Ñ Power Section Ñ ááááááááááááááááááááá 37
3-17. Schematic Diagram Ñ Power Section Ñ áááááááááááááááááááááááá 39
3-18. Printed Wiring Board Ñ DIGATAL (SIDE A) Section Ñ41
3-19. Printed Wiring Board Ñ DIGATAL (SIDE B) Section Ñ43
3-20. Schematic Diagram Ñ DIGITAL Section (1/3) Ñ áááááááááá 45
3-21. Schematic Diagram Ñ DIGITAL Section (2/3) Ñ áááááááááá 47
3-22. Schematic Diagram Ñ DIGITAL Section (2/3) Ñ ááááááááá 49
3-23. IC Pin Function Description áááááááááááááááááááááááááááááááááááááááááááá 51
3-24. IC Block Diagrams ááááááááááááááááááááááááááááááááááááááááááááááááááá\
áááááááá 61
4. EXPLODED VIEWS
4-1. Front Panel Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\
ááááááá 64
4-2. Chassis Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\
áááááááááááááá 65
5. ELECTRICAL PARTS LIST ááááááááááááááááááááááááááááááááááá 66
