Teac CD A500 Service Manual

Page 1

TASCAM

TEAC Professional Division

SERVICE MANUAL

CD-A500

COMPACT

mmwm Compact DISC Player/Reverse Cassette Deck
CONTENTS a :5:

1 SAFETY INFORMATION 1 SAFETY INFORMATIONW -~2
2 SPECIFICATIONS -------- 2 1;; ,,,,, ..3
3 ADJUSTMENT AND CHECKS (CD SECTION) ~~-5 3 algae (energy-n us
4 ADJUSTMENT AND CHECKS (cASSErTE SEC.) ..,9 4 §H¥&an(7ltv rats) ---------------- 9
5 EXPLODED VIEWS AND PARTS LIST ---------- A14 5 fifiEHyi-y u x r --------------- 14

6 PC BOARDS AND PARTS LIST ----- ~22
7 INCLUDED ACCESSORIES - -27

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7 Hear-v

NOTES

.PC boards Shown are viewed from parts side.

.Parts marked with >I< require longer delivery time.

.The parts with no reference number or no parts number in the
exploded views are not supplied,

.As regards the resistors and capacitors, refer to the Circuit
diagrams contained in this manual,

.12; Parts marked with this sign are safety critical components.
They must be replaced with identical components - refer to the
appropriate pans list and ensure exact replacement.

.Parts of [1 mark can be used only with the version designated
[J] :JAPAN [US] :U. S. A. [C] :CANADA [GE] :GENERAL EXPORT
[K] : KOREA [E] :EUROPE [UK] : U. K. [A] :AUSTRALIA

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[J] :JAPAN [US] : U. 8 A] [C] :CANADA [GE] :GENERAL EXPORT
[K] :KOREA [E] :EUROPE [UK] :U. K. [A] :AUSTRALiA

Effective '. July, 1998

D004391 00A

Page 2

I7

CD-A500

1 SAFETY INFORMATION

SAFETY INFORMATION

Thrs product has been designed and manufactured accordmg to FDA regulatzons tirle 21. CFR, chapter 1. subcnaptar J. based on the
Radiatron Control for HeaIm and Safety Act or 19683 and is classrfred as cIass 1 laser product There Is not hazardous mvrsmle laser radiation
during operaxion because rnvrsible laser radiation emrtted inszde oftnrs product rs complerely confined m the protective housrngs.

The labeI required In this reguIation is shown G).

CAUTION

USE OF CONTROLS OR ADJUSTMENT OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN

HAZARDOUS RADIATION EXPOSURE.

@ CERTIFICATION
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0 ACHTUNG

CLASS I LASER PRODUCT
LUOKAN I LASERLAITE
KLASS 1 LASERAPPARAT

Optical pickup: Type : KSS~2128
Manufacturer I SONY Corporatron
Laser output : Less than 0.4 mW on the ODIECIIVB lens
Wavelength :760 7 800 nrn

' OBSERVERA - ADVARSEL

@THIS LABEL IS ATTACHED TO THE PLACE AS ILLUSTRATED TO INFORM
THAT THE APPARATUS CONTAINS A LASER COMPONENT.

® DIESE AUFKLEBEMARKE IST AN DEM IN DER ABBILDUNG GEZEIGTEN QRT
ANGEBRACHT UM DARAUF HINZUWEISEN, DASS IM INNERN DES GERATS
EINE LASER-KOMPONENTE BEFINDET.

CD PASKRIFTEN SITTER PA APPARATEN SOM VISAS SOM UPPMANING OM ATT
APPARATEN OMFATTAR EN INBVGGD LASERKOMPONENT.

G) DETTE M/ERKAT ER ANBRAGT SOM VIST | ILLUSTRATIONEN FOR AT ADVARE
BRUGEREN OM AT APPARATET INDEHOLDER EN LASERKOMPONENT.

@DETTE MERKAT ER SOM VIST PA ILLUSTRATIONEN ANBRAGT PA
INDERSIDEN AF TOPD/EKSLET FOR AT ADVARE BRUGEREN OM AT
VDERLIGERE FREMTRIENGEN VIL WERE FORBUNDET MED FARE FOR AT
UDSETI'E SIG FOR LASERSTRALING.

ADVARSEL~ BETJENING AF ANDRE KONTROLLER OG REGULATORER ELLER
BENVTTELSE AF ANDRE FREMGANGSMADER END BESKREVET HERI ER
FORBUNDET MED FARE FOR USD/E'ITELSE FOR LASERSTRALING.

VARNIG: APPARATEN INNEHALLER LASER KOMPONENT MED
STRALNING OVERSTIGANDE KLASS 1

ADVARSEL: USYNLIG LASERSTRALING VED ABNING NAR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION UNDGA
UDSAETTELSE FOR STRALING."

VAROITUS! SUOJAKOTELOAEI 8AA AVATA: LAIJ'E SISALTAA
LASERDIODIN. JOKA LAHETTAA (NAKYMATONTA) SILMILLE
VAARALLISTA LASEHSATEILYA.

ADVARSEL: usvnue LASERBESTRALING NAR DENNE
DELEN ER APEN oe SIKKERHETSSPERREN ER UTKOBLET
UNNGA UTSETTELSE FOR STRALING,

Page 10

CD-A500

4~2 ELECTRICAL ADJUSTMENT

4-2-1 Precautions

4-2 7 yffifiafifig

4-2-1 53%

0 Before performing adjustments and checks clean and 0 7"/7£-��|§0)'.:J5]¥§§'Mgiflmim; i-7)1§?'i¥0)fl'41ifi&KER/3:11"
demagnetize the entire tape path. tia1< fiémo
0 In general, adjustments and checks are made in the . filjfifiaoflgmlflw HflfimLch, Rchfl)lllfil¥G?l'T§oT< 7i
Order of Lch then Rch. Double REF. NOS. indicate LCh 300 Km Rll/RZIUD;5IZEEéNTQ\6EJE§§%£1LCh/
/Rch (Example; Rll/RZI) Rch éfikt§?°
O OdB is referenced to 0.775V. 0 OdB=O.775V
0 The AC voltmeter used in the procedures must have 0 lllHfifl:f93F¥l?él/N g-la)/\)M/t- F'VXLilMQl/lea)
an input impedance of IMQ or more 60>é133fifiLT< fiéLo
0 Unless specified otherwise, adjustments and checks are 0 Kill ETEUJfMd-ififi +3325;Ufi EL: FWD J'jleCiJ'fJa'C
made in FWD direction. 4-2-2 Adjustment locations melee?
TAPE PCB
0
GND
R190
L201 L101 0 R292
R192
P102
R291 .
TP202 @ ' .2
R193 H293
L104
.
TP102 R191
Flg. 4-2

10