Panasonic rx ds 27 service manual

Page 1

Service

Portable Stereo CD System

I'I COMPACT

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muiiI-s'aganoneihipmg

I] D§[EI iVII\Dl-I

DIGITAL AUDI D

TAPE SECTION : SGZO MECHANISM SERIES
CD SECTION : RAE01502 TRAVERSE DECK SERIES

- Specificadcns
IRADIO
Frequency range

FM
AM

intermediate Frequency

87.5 -108 MHz(50 kHz steps)
522 - 1611 kHz (9 kHz steps)

ORDER NO. MD970302302

Manual

Radio Cassette
P1 X L)" 82 7
Colour
(K) Black Type
Area -----
(E) Europe
(EB) GreatBn'tain (K)
(EG) Germanyanditaiy

* MASH is a trademark of NTT,

I C D PLAYER
Samplingfrequency 44.1 kHz
Decoding 16-bitiinear
Beam source Semiconductor laser

(wavelength; 780 nm)

No. of channels 2 channel, stereo

FM 107 MHZ Frequency Response 20 Hz ~20 kHz(+0, -2 :13)
AM 459 kHz SIN ratio 62 dB
Sensmvdy Wow and flutter Less then possible measurement data
FM 16 ciB/SO mW D/A converter MASH (I bit DAC)
AM 49 £131.50 mW
I G EN ERAL
ITAPE RECORDER Powerrequirement
Tracksystem 4 track, 2 channel, stereo Ac 230.24ov, 50 HZ
. Recording system AC bias Power consumption: 36 W
Tapespeed 4-ch/S Battery 12v (Eight"D"size, Hzo/ano batteries)
5|?st SVSIEY Magnet (MUN WIS) Memory back-up ior
Monitor system Va riabie sound monitor computer 6V (Four "AA" size, RS/LRB batteries)
Frequency range(Normal position) 50- 12,000 Hz Speakers 10 cm x 2
decks
Output Headphones; 32 .0
Notes: Dimensions (W x H x D) 480 x 156 x 248 mm
Specifications are subject to change without notice. Weight 3-9 k9 without batteries
Weight and dimensions are approximate.
3 WA R N I NG

This service information isdesigned iorexperiense repairtechniciansoniyand isnot designedforuse bythe general public. itdoesnotcontain warnings
orcautionsto advise non technical individuals of potential dangersin attempting toservics aproduct. Products powered by eiectricityshouid be serviced

or repaired only by experienced professional technicians Any attemptto service or repairthe product orproducts dealt with In this service information
. by anyone else could result In serious injury or death.

Panasonici

J

(c) 1997 Matsushita Electronics (S) Pte. Ltd.
All rights reserved. Unauthonzed copying and
distribution is a violation ofiaw.

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RX-DS27

I Contents Page Page
PRECAUTION DFLASER DIODE ................................... 2 PRINTEDCIRCUITBOARD 15~19
HANDLING PRECAUTIONS FOR TRAVERSE DECK 3 SCHEMATIC DIAGRAM ...... . 20 ~ 28
CAUTION FOR AC MAIN LEAD. 4 TROUBLESHOOTING GUIDE 29
OERATION CHECKSANDMAIN COMPONENTREPLACEMENT 5 - 7 MECHANISM PARTS LOCATION (RAAOQSS') 30
SELF- DIAGNOSTIC DISPLAY FUNCTION. .. MECHANISM PARTS LIST ..... 31
MEASUREMENTS AND ADJUSTMENTS CABINET PARTS LOCATION. . 32
TERMINAL FUNCTION OF ICs REPLACEMENT PARTS LIST . 33 - 35
TERMINAL GUIDE OF ICs TRANSISTOR RESISTORS SI CAPACITORS .. 36 ~ 38

WIRING CONNECTION DIAGRAM ................................. 14

I Precaution of Laser Diode

CAUTION : This product utilizes a laser diodewith the unit turned ON, invisible laser radiation is emitted from the pick up lens.

Wavelength : 750 nm

Maximum output radiation power from pick up : 100 pWNDE
Laser radiation from pick up unit is safety level, but be sure the followings:

Do not disassemble the optical pick up unit, since radiation from exposed laser diode' Is dangerous.
Do not adjust the variable resistor on the pick up unit. It was already adjusted.

Do not look at the focus lens using optical instruments.

Recommend not to look at pick up lens for a long time.

PPM?

ACHTUNG: Dieses produkt enthalt eine Iaserdiode.

lasereinheit abgestrahlt.

Wellenlénge : 780nm

Maximale strahlungsleistung der Iasereinheit :100uWNDE

Die strahlung an der Iasereinheit ist ungeféhrlich, wann iolgende punkte beachtet werden:

1. Die lasereinheit nicht zerlegen, da die strahlung an der freigelagten Iaserdiode gefahrlich ist.
2. Dan werksaitig justienen einstallregler der Iasereinhlt nicht verstellen.

3. Nicht mil optischen instrumenten in die fokussierlinse blicken.

4. Nicht fiber Iangere Zeit in die fokussierIinsa blicken.

ADVARSEL: l delte a apparel anvendes laser.

Im eingeschaltelen zustand wird unsichtbare laserstrahlung von der

CAUTION!
THIS PRODUCT UTILIZES A LASER.

USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED
HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

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