Technics SALS 10 Service Manual

Page 1

Servic ~

drum _tGIT/IL

Dom

SA-LS1 0

Mulll- :laeAe no-se snap-"a

DIGITAL AUDIO
SB-LSIO

L. .
f Remote control
transmitter

>.< L MASH is a trademark of MT.

TAPE DECK: AFH MECHANISM SERIES

TRAVERSE DECK: RAE01352 MECHANISM SERIES

SPECIFICATIONS (DIN 45 500)

I AMPLIFIER SECTION
40 Hz-16 kHz continuous output both channels driven

2x l5 W (THD 1%. 4O)
1 kHz continuous power output both channels driven

2x20 W (THD 1%. 4(2)
Total harmonic distortion hall power at 1 kHz 0.09% (40)
Input sensitivity

AUX 250 mV
Input impedance
AUX 22 kit!

I FM TUNER SECTION

Frequency range 8150-10800 MHz

Sensitivity 1.8 1.1V (lHF '58)
SIN 26 dB 1.5 pV
SIN
MONO 70 dB (75 dB, lHF)

Image rejection at 98 MHz 80 dB
Alternate channel selectivity $400 kHz. 65 dB
Stereo separation

1 kHz 35 dB
Antenna terminal(s) 750 (unbalanced)

ORDEF N0. AD940924702

CD Stereo System

SA-ifii i?

Colour
(l().. .I3lack Type
Area '-'-.¥
[33:12); 5: Area Colour
(EB) Great Britair.
(EG) Europe. (K)
(El) Italy.

System: SC-LS'iO

>.k Dolby n0Ise reduction manufactured under license from
Dolby Laboratories Licensing Corporation
Dolby"a and the double-D symbol are trade marks of
Dolby Laboratories Licensing Corporation.

System Cal'seieetiteefD Speakers
SC-LSIO SA-LSIO SB-LSIO
E AM TUNER SECTION
Frequency range
Iviw 522-1611 kHz (9 kHz steps)
530- I620 kHz (10 kHz steps)
LW 144-288 kHz (9 kHz steps)
Sensitivity (SIN 20 dB)
MW (at 999 kHz, 1000 kHz) 500 pV/m
Lw (at 216 kHz) 50 IN

I CASSETTE DECK SECTION

Track system 4

Heads
Recordlplayback Permalloy head
Erasure Double gap ferrite head

Motor DC servo motor
Recording system AC bias. 100 kHz
Erase system AC erase

Tape speed 4.8 cm/s (1 7/8 ips)
Frequency response
Normal 40 Hz-14 kHz
Cro2 40 Hz- I4 kHz
Metal 40 Hz-15 kHz
SIN(Cr02 type tape)
Dolby NR oil 52 dB (A-WTD)
Dolby NR on 61 dB (CCIR)

Wow and flutter
Fast forward and rewind time
Approx. 45 seconds with 0-60 cassette tape

O.i °/o (WRMS)

A WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It
does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians.
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

Any attempt to service

Technic§

© 1994 Matsushita Electric Industrial 00., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.

Page 2

SA-LS10

I CD SECTION

Sampling Irequency 44.1 kHz
Decoding 16-bit linear
Beam source Semiconductor laser
Wave length 780 nm
Number Of channels Stereo
SIN 85 dB
Wow and flutter Below measurable limit
Digital filter 8 ts

DIA converter

MASH (1 BIT DAC)

I CONTENTS

PROTECTION CIRCUITRY ..........
PRECAUTION OF LASER DIODE.
CAUTION FOR Ac MAINS LEAD ..
BEFORE REPAIR AND ADJUSTMENT
FRONT PANEL CONTROLS
CONCERNING THE REMOTE CONTROL
CONNECTIONS.
ACCESSORIES ..
SETTING THE TIME.
MEMORY PRESETTING
LISTENING To COMPACT DISCS
LISTENING To TAPES
LISTENING TO RADIO
LISTENING WITH SOUNDSOAPE .....
CHANGING SOUND QUALITY AND FIELD
RECORDING COMPACT DISCS ...............
RECORDING FROM RADIO BROADCASTS
USING THE TIMER ..........
LISTENING To AN EXTERNAL SOURCE
OR WITH HEADPHONES
MAINTENANCE ....................
OUICK REFERENCE OF
REMOTE CONTROL OPERATIONS.
SELF-DIAGNOSTIC FUNCTION
SOUNDSCAFE. ........................
HANDLING PRECAUTIONS FOR TRAVERSE DECK
OPERATION CHECKS AND MAIN COMPONENT
REPLACEMENT PROCEDURES
CHECKING PROCEDURE FOR EACH P.C. .. .
MAIN COMPONENT REPLACEMENT PROCEDURES. ..

I PROTECTION CIRCUITRY

The protection Circuitry may have operated if either of
the following conditions is noticed:

- No sound is heard when the power is turned on.

0 Sound stops during a performance.

The function of this circuitry is to prevent circuitry
damage if, for example, the positive and negative
speaker connection wires are shorted", or if speaker
systems with an impedance less than the Indicated
rated impedance of the amplifier are used.

I GENERAL
Power consumption 77 W
5 W (with standby mode)
Power supply
[For (EG, El) areas]
[For (EB) area.)

Dimensions (w x H x D)

AC 50/60 Hz, 230 v
AC 50160 Hz, 230/240 v
300x314x 197 mm
(113I; x 1231,.~ x 7m)
Weight 5.5 kg (12.1 lb.)

Notes:

1. Specifications are subject to Change without notice.
Weight and dimensions are approximate.

2. Total harmonic distortion iS measured by the digltal spectrum
analyzer.

MEASUREMENTS AND ADJUSTMENTS.
NEW DIGITAL SERVO CIRCUIT
TROUBLESHOOTING GUIDE.
TERMINAL FUNCTION OF ICS.
BLOCK DIAGRAM .........
SCHEMATIC DIAGRAM

LOADING MOTOR CIRCUIT
SWITCH CIRCUIT .............
MECHANISM CONTROL CIRCUIT
MECHANISM CIRCUIT
OPERATION CIRCUIT..
SENSOR CIRCUIT.
FL CIRCUIT .....
MAIN CIRCUIT
POWER SUPPLY CIRCUIT ..
CONNECTOR CIRCUIT....
SPEAKER TERMINAL CIRCUIT.
HEADPHONES JACK CIRCUIT..
POWER TRANSFORMER CIRCUIT
PRINTED CIRCUIT BOARDS ..
WIRING CONNECTION DIAGRA
TERMINAL GUIDE 0F ICS, TRANSISTORS AND DIODES 93
REPLACEMENT PARTS LIST.. 94~98, 103, 108
CABINET PARTS LOCATION . . 99, 100
MECHANISM PARTS LOCATION
RESISTORS AND CAPACITORS
PACKAGING .............................

If this occurs, follow the procedure outlines below:
1. Turn off the power.

2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.

Note:

When the protection Circuitry functions, the unit will
not Operate unless the power is first turned Off and
then on again.

Ii

Page 40

SA-LS10

3. Checking for the servo P.C.B.

Pull out the front

panel assy.\\

;

Release the claws,
and then rotate the
pulley gear.

Rotate the pulley gear fully,
and then open CD door assy.

Connect the extension

cable [RFKZOO48]. [:2

Attach the test disc.

CD cabinet (Upper)
Rb
Install the '
sen/o P..C.Bt
to the rub.

@mm as ,9 9,9
[XTBSS+8JI71] (Black)

6)»), G)

[RHDSQOO7] (Black)

Remove the
CD cabinet (Upper).

Remove the PFC.

;
d Connect the FPC.

Servo PtC.B,

' Check the servo PCB. and replace
the parts as shown above.

~40-

Page 44

SA-Ljfl

Remove the gear
box (A) assy.

Remove the CD
cabinet (Upper
[RKM0267 - 1].

CD cabinet (Lower)

Remove the [RKSOWB - H1]

traverse deck and g,
servo P.C.B..

9,93,13,03

CD block. [XTB3+8J|7] (Black)

Pass the FPC through
the slot. V

>Z the CD loading gear(L)
as shown above.

Install the
CD block.

3 CD door ass'y

Align the both side
of CD door ass'y
with the CD block.

£1?

l) )I 7, Rotate the CD loading gear
fi) 1) 0,0,0 Step ass'y in the direction of arrow

[XTBS+BJFZ] (Black) until loading gear stops operation.