Teac CD-3 User manual

IAAI
V24826
T
E
AC
SERVICE MANUAL
CD-3_
Compact Disc Player
COMPACT
DIGITAL AUDIO
CONTENTS
1 SAFETY INFORMATION te, Sa: Bvorrat ah ok ah ais a8 0 Tele 016 “ake, .8 [ore acs BION SE. Bia era careceratece 2
2 SPECIFICATIONS ---cc cece cece cece cece cece e eee eeeeeeeeeeeenes 3
{+ ER
3 CASE AND FRONT PANEL REMOVAL -::--------2-2eseeee 4
HAR RORLA
4 ADJUSTMENT AND CHECKS ---eeee cece cece cece eee tteeeteneees 5
28k £ FER
5 EXPLODED VIEWS AND PARTS LIST -------eeeeeeee reer 12
SRR LIN-—YURh
6 PC BOARDS AND PARTS LIST sighed asaro) bhovcal berets ev e-e Yeats tee cetera vette 16
BiRWcEN-YURAb
Effective : June 1994 5704069000

CD-3
1 SAFETY INFORMATION
, SAFETY INFORMATION
This product has been designed and manufactured according to FDA regulations “title 21, CFR, chapter 1, subchapter J, based on the
Radiation Control for Health and Safety Act of 1968”, and is classified as class 1 laser product. There is not hazardous invisible laser radiation
during operation because invisible laser radiation emitted inside of this product is completely confined in the protective housings.
The label required in this regulation is shown (1).
CAUTION
@ If you remove the above-mentioned housings under the operating state of the product, there is a possibility of human access to the invisible
laser radiation emitted from the optical pickup.
Pay careful attention, not to let the invisible laser beam enter into your eyes.
@ if you find a troubled state of the laser diode, change to the specified new optical pickup.
@ lf you find a troubled state of safety interlock parts, change to the same type parts described in parts list.
CERTIFICATION
THIS PRODUCT COMPLIES WITH DHHS,
RULES 21 CFR SUBCHAPTER J APPLI- ——
CABLE AT DATE OF MANUFACTURE
TEAC. CORPORATION
1) 3NAKA:CHO WAEASHONO SIM TORYO JAPAN,
MANUFACTURED. Ww
Optical pickup: Type : KSS-210A
Manufacturer : SONY Corporation
Laser output : Less than 0.4 mW on the objective lens
Wavelength :760 — 800 nm
e CAUTION eACHTUNG e¢OBSERVERA e¢ 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 ORT
ANGEBRACHT UM DARAUF HINZUWEISEN, DASS IM INNERN DES GERATS
EINE LASER-KOMPONENTE BEFINDET.
(1) PASKRIFTEN SITTER PA APPARATEN SOM VISAS SOM UPPMANING OM ATT
APPARATEN OMFATTAR EN INBYGGD LASERKOMPONENT.
(1) DETTE MAERKAT ER ANBRAGT SOM VIST | ILLUSTRATIONEN FOR AT ADVARE
BRUGEREN OM AT APPARATET INDEHOLDER EN LASERKOMPONENT.
@ DETTE MARKAT ER SOM VIST PA ILLUSTRATIONEN ANBRAGT PA
INDERSIDEN AF TOPD/AEKSLET FOR AT ADVARE BRUGEREN OM AT
YDERLIGERE FREMTR/AENGEN VIL VA-RE FORBUNDET MED FARE FOR AT
UDSATTE SIG FOR LASERSTRALING.
ADVARSEL- BETJENING AF ANDRE KONTROLLER OG REGULATORER ELLER
BENYTTELSE AF ANDRE FREMGANGSMADER END BESKREVET HERI ER
FORBUNDET MED FARE FOR USD/ETTELSE FOR LASERSTRALING.
VARNIG: APPARATEN INNEHALLER LASER KOMPONENT MED
STRALNING OVERSTIGANDE KLASS 1
“ADVARSEL: USYNLIG LASERSTRALING VED ABNING NAR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGA
CLASS 1 LASER PRODUCT fn
eau Geni ANE UDSAETTELSE FOR STRALING.
KLASS 1 LASERAPPARAT “VAROITUS! SUOJAKOTELOA El SAA AVATA, LAITE SISALTAA
LASERDIODIN. JOKA LAHETTAA (NAKYMATONTA) SILMILLE
VAARALLISTA LASERSATEILYA’.
ADVARSEL: USYNLIG LASERBESTRALING NAR DENNE
DELEN ER APEN OG SIKKERHETSSPERREN ER UTKOBLET
UNNGA UTSETTELSE FOR STRALING.

AUDIO
Number of Channels
2 SPECIFICATIONS
Frequency Response 1 — 20,000Hz + 0.5dB
Signal to Noise Ratio
Dynamic Range
Harmonic Distortion
Wow and Flutter
Channel Separation
Output Analog
Digital
Headphone
D/A Converter
Digital Filter
Analog Filter
PICK UP
Type
Objective Lens
Laser Type
Wave Length
SIGNAL FORMAT
Sampling Frequency
Quantization Bit
Channel Bit Rate
Channel Modulation Code
Error Correction
GENERAL
Power Requirements
Power Consumption
{t
(A-F 44)
2 A-F Aa AF v VRIVER
Bpeescoaca
Better than 104dB (1kHz) SN EE
Better than 97dB (1kHz) FAt 2 vv
0.0022 % (1kHz) Ppa
Unmeasurable (Quartz accuracy) DIDI 9-
Better than 102dB (1kHz) FrVAaAIenyp—-vay
1.7Vrms FFOTLA
0.5Vp-p/ 75 Q (Coaxial) FUFIWBHA
10mW/ 33 Q Ay FRU
“Bitstream” conversion DLA DY IN-F—
8-times oversampling 20-bit digital FYUINDANWI—
filter
3rd order Butterworth filter PFOFIANI—
(Ey IF uT7)
Optical 3-Beam laser pickup FX
2-dimensional parallel drive WML YARHARX
GaAlAs type semiconductor laser FOR
780nm BRR
(a5 74—Vv b)
44.1kHz BALA RR
16-bit linear/ channel Bitty h&
4.3218Mb/sec EL —h
BAX
EFM (Eight to Fourteen Modulation) L5>-i EAR
CIRC (Cross Interleave Reed
Solomon Code) (—Az)
ER
HRED
120/230V AC, 50 - 6OHz NET IK
(General Export Model) 28
120V AC, 6OHz
(USA/Canada Model) ian
230V AC, 50Hz (Europe Model)
240V AC, 50Hz
(UK/ Australia Model)
10 watts
Dimensions (W x H x D)
Weight (net)
447 x 124 x 276mm
(17-5/8" x 4-7/8" x 10-7/8" )
3.8kg (8-3/8 Ibs)
Standard Accessories Wireless Remote Control Unit
(RC- 532: for Gold-finish version
or RC-531: for Black finish version)
x 1, RCA pin-plug cord, Battery
(SUM-4, “AAA”, “RO3”" type) x 2
@Ilmprovements may result in specification or feature
changes without notice.
CD-3
2F ve VRID
1~20,000Hz + 0.5dB
104dB LiE CEIAJ)
97dB Li_E (EIAJ)
0.0022 % LIF CEIAJ)
Ale BR FMB LF Ck aR EE)
102dB LAE CEIAJ)
1.7Vrms
0.5V p-p/ 75 Q (COAXIAL)
10mW (33 Q Bir)
Evy kARU-L
BEA -N-DPYPUYT
20Ey hk FVII 4 Wa
BRNI-I-RID4NWI-
OL ABE, KSEE L
2RTFT RH
+a L —
780nm
44.1kHz
Ey bh ULP/F er VR
4.321 8Mb/sec
EFM
CIRC
100V AC 50-60Hz
10W
447 x 124 x 276mm (W x H x D)
3.8kg
@DIVLAVEIY RC-531 Kfelk RC-532
eevIs7a—-F
@ fc Bith (4, SUM-4) x 2
@ Rik AS
* HERR SOSH. MEORO PHS RATS CEMBVETS

CD-3
3 CASE AND FRONT PANEL REMOVAL
HSA ORLA
mble in number- order
Disasse'
BSmBCALT<K KAU

CD-3
4 ADJUSTMENT AND CHECKS
ase ¢ HERS
1. Replacement of the pickup assembly
@ Before removing the pickup assembly be sure to solder
-bridge where indicated in the inset (Fig. 4-1) to prevent
the laser diode from being electrostatically damaged.
After replacing the pickup assembly, be sure to unsolder
the antistatic bridge. Or else the laser diode does not
function.
@ Before servicing the pickup assembly be sure to prevent
electrostatic-inducer destruction by grounding not only
test equipment in use but also yourself as shown in
Fig. 4-2.
* Electrostatic charge drastically shortens the operating
life of the laser diode or possibly results in its
destruction.
@During the transportation, mounting and dismounting
of the assembly, support with your fingers at points
A and B as shown in Fig. 4-3. Be particularly careful
not to touch the actuator, photosensor and LD plate
and do not apply force to them.
@Soldering must be done quickly at less than 30W, 320°C.
@Don’'t disassemble the pickup ass’y.
@Don't apply shock to the pickup ass’y.
@Don't place the assembly in a place subject to excessive
dust, heat or moisture.
PCB
1.E 97» 7 ASSY D3
@LYITYSASSY EAT ERA, V-F-F14- FORE
ERP IL OD, UTR (Fig. 4-1) EBAY vy YUT
DOLEBELTC CREW, EK. MONU SZHAbRo HK
Bie BAT) yp VERLTCBR EW
MAT Y y VELKREECAU-¥-PY4A— FUEL ES
Ao
@CyITYTASSY ERYRIBA, MERE ECHR
F-ARMALHI. MAT - ARTO, BERS +O PE
LTC KAU, (Fig. 4-2)
kL-F-FAA— Kid, BBROMDS EAMRMB IBF
LEY. EWE LETOCHOERLTC RSW,
@Mott, MOAL, Ho MUORIL, Fig. 4-30AME BR
CHATCHEU, BIT 7 FaL—-¥—, HRB, LDF
L—hablid, FERN ODEMALY LEWC KREUS
@ HAF IL30W, 320°C F HHL. TIE < ML TC KS
Wo
@LPYIT YT ASSY AKOMBE KUSH EV LEE CK
SW,
@EY IT yYSASSY Ire F + HMMA BUEK HEY
@ti -KIVCLORET 2M, BE SHROMMILHUT
CHS
Earth ring
(Lead wire)
Pick-up case
Chassis (GND)
AdNS
LZ
Fig. 4-1
2. Objective
@Laser beams are similar to infrared rays. Don’t look at
the beams directly and keep your eyes at least 30cm
away from them.
@Don't touch the objective with fingers.
@If objective becomes dirty, playback will deteriorate.
To clean the objective, moisten a good cleaning tissue,
such as made by KODAK, in isopropyl alcohol and wipe
the objective gently. Wipe off and excess fluid with a
dry cleaning tissue.
Resistor
IMQ~10MQ
Photo Sensor
Earth
Fig. 4-2 Fig. 4-3
2. Xv YALL DWT
@L—¥-HlLATMAROABAGILMHTT. HDOREOA. A
#VY AAS 30cm LEBEL TK RR,
@VVARIFEAMNEO EC HEV,
@VVAINA ¢ & HHEREHIAUE FL ETO, ROEDEK
dL TC KAW,
VY AY -aVAR—/S— (KODAKHBEY) i. ooo
E-VPFVA—d (LP.A) HL CHE LD. ROR Uk
DIBFREL DTC RAW

CD-3
3. Laser diode check
{lop (Intensity Optimum) check]
Connect a DC voltmeter between TP1 and TP2 on MAIN
PCB. Measure the DC voltage while playing a disc to check
that the measured value does not exceed the Iop value
indicated on the pickup by 5mA. {I= measured value/22)
If the measured value is higher than that indicated, the
pickup may be damaged.
* Pay special attention that parts are not damaged by
static electricity.
DC voltmeter
3. b—--SY44—FORBF 27
(lop (Intensity Optimum) (A3#22)
(Ey TT y SEAR AT LDP RITO SC &)
DC#Vb X-¥Y—-*MAIN PCBOTP1, TP2 ictRRTS.
PLAY POBRBEZMNEL. COBED COBRRALK IA
(= WEBI /22) REY AT vy TIRARLTH Slopih#kY 5mA
DEMMLTORU LC ESHA S. WMOBSa, BHRLTU
DAREPED SS.
* PEDIC HERT SIE.
MAIN PCB
@How to read numbers on sticker attached to the pickup
(Example)
KSS-210A
11191
646
Serial No.
lop value 64.6mA
Fig. 4-4
OK YIP YATRA —MORAA
(Bil)
KSS-210A
1119)
646
YY 7 IVNo.
lop ff 64.6mA
VOLTAGE CONVERSION
(For general export/U.S.A./Canada models)
Be sure to remove the power cord from the AC outlet
before repositioning the voltage converter switch.
1. Locate the voltage selector on the rear panel.
2. Using a flat-bladed screwdriver, set to the appropriate
230 V or 120 V position according to your area.
VOLTAGE SELECTOR
20y 120
VOLTAGE SELECTOR
230V 120V
ml

4-1 SERVO ADJUSTMENT
TEST DISC: MCD-111 (or YEDS-18)
4-1 + — Ki
FAKF4ADM: MCD-111 (KKM YEDS- 18)
MAIN PCB
Fig. 4-5
CD-3

CD-3
4-1-1 Checking the pickup actuator operation
Before loading the disc, turn the power ON and check
that the pickup actuator moves up and down three times.
(if the pickup is not at inside on the disc, perform the
above operation after moving the pickup to the inside.)
4-1-2 Adjusting the PLL frequency
1. With the tray open, connect the frequency counter
between TP3 and TPG, and short circuit between TP4
and TPG.
2. Adjust V405(VCO) so that the PLL frequency is
4.3218MHz + 0.05MHz at the stop mode.
For this, use a X10 sync probe with the frequency
counter.
4-1-3 Tracking balance adjustment
1. Connect the oscilloscope between P405-1(TE) and
P405-6(GND), and press the SEARCH (<dor>>)
button.
2, Adjust V401(1T.B) so that the upper and lower
amplitudes of the tracking error signal waveform
become equal above and below OV.
4-1-4 Focus offset adjustment
1. Connect the oscilloscope between P405-5(RF) and
P405-6(GND).
2. In the play mode, adjust V402(F.B) so that the
waveform on the oscilloscope becomes maximum.
3. After adjusting the focus offset, stop the player. Check
for an offset voltage of 50mV or less at V403 center
lead. If reading values are out of spec, adjust V402
again.
ArT Ey IP ae ST OF 2 L—9—-BEF cD
BRON 77 97ST 7FaL—-F—-MBGEPHTAZCE,
(Cy 77 y TOBAM IE ld. BRAVA BIR Eee
Arto) FAATVURELIE,
4-1-2 PLLEAikeias
lL. RUT SBA KREG, TP3 E TPGHIC AB 7 - TE
LL TPAETPG EY a-—bhdS.,
2. Ah y PIKKEC OP BEA 4.3218MHz + 0.05MHzI AK
512 V405 (VCO) EHTS,
AmkaAvyy—l4a vou -7x lweweAs 4.
41-3 hSyY FYING YABB
1. P405-1(TE) & P405-6(GND) fica y ORI PRE
L,. SEARCH #Y v (44 EIS Ph ) LIT,
2 Fy Ft YFLI—-fESOREMOVEHOUIRNS £5 V401
(T.B) HET 4.
41-474 -HAAADVEy bE
1. P405-5(RF) ¢ P405-6 (GND) Mica > co AI-—TA He
to
2. PLAY {KHE CH YO AI—PORIBDIBKIZU SD & 312 V402
(F.B) = HET SH.
3.74 -AAAD ey b PM HSTOP Kil UT. V403 &
J-Y-FOAT ¢y BEM SOMVILE CHSC & Le MhaB
FSo SUMBIKASEUYG ASHE V402 MET 4.
ELITR
NW Ny
YY
XK
Maximum
KIIIPHIOPIO TINT?
AR UNI
DUANE
CO OO OY 08,
\
\ i AAV
SURE SNR
Fig. 4-7

CD-3
4-1-5 Focus gain adjustment 4-1-574-HATA VRE
1. Apply 1.17kHz/10Vp-p (When using MCD-111) or 1. ABBOSC &Y 100k QOHHREA UT 1.17kKHZz/10Vp- p
1.14kHz,/10Vp-p (When using YEDS-18) to P405-4 (MCD- 111 (2 Ct dae) ¥ 71d 1.14kKHZ/ 10Vp-p (YEDS-18
(FE tl) from an external OSC via 100k Q resistor. (CHI) OES = P405-4( FE W)ICADT 4S.
2. Play the track 4, and adjust V403(F.G) so that phase 2, 4HHA E+E LY P405-3(FE |) EBB OSC & OLiZtHA 90°
at P405-3(FE 1) is 90° with respect to that of the IZHHZKGITV403(F.G) FHT AS,
external OSC.
Oscillator Oscilloscope MAIN PCB
10Vp-p
Fig. 4-8
4-1-6 Tracking gain adjustment 41-6 hS yt UT 4 VBE
1. Apply 1.70kHz,/710Vp~-p (When using MCD-111) or 1. ARBOSC EY 100k QOH LT 1.70kKHZ/10Vp- p
1.51kHz,410Vp-p (When using YEDS-18) to P405-2 (MCD-111i= Cag) ¥ fed 1.51kHZ710Vp-p (YEDS- 18
(TEI!) from an external OSC via 100k Q resistor. ic CHAR) OZ SX P405-2(TE Il ICANT S.
2. Play the track 4, and adjust V404(T.G) so that phase 2. 4HHE #FH4E LL. P405-1(TE |) &EMSBROSC & MfZtBDS90°
at P405-1(7E |) is 90° with respect to that of the SZ KDITV404(7.G) RTS,
external OSC.
Oscillator Oscilloscope MAIN PCB

CD-3
4-2 ELECTRICAL CHARACTERISTICS
. Output level
HALAL
Batt
DISC: MCD-111 (YEDS-18)
TRACK No. } 347
FREQUENCY Bik
]
SPECIFICATIONS
#
.1+0.5Vrms
REMARKS
fei
. Channel level
difference
Fp VRIVLAIVE
1
hs
.OdB or less
. Phones level
Ny FRU LAL
0.62 + 0.3Vrms
33 Q load
OUTPUT level : max. -a
. Harmonic
distortion
mmRES
. Frequency
response
FBS
. S/N ratio
SANE
20Hz~ 20kHz
0.
009% or less
Within + 1.0dB
92dB or better
. Channe!
separation
Fe Rsb
BNL-Yay
400Hz~20kHz filter in
reference level: 1kHz
DIN AUDIO
(Use SHIBASOKU 725
or equivalent)
85dB or better
DIN AUDIO
. Emphasis effect
LYD 7 VAMR
10
MCD- 111:
-— 20 +1.0/-1.5dB
YEDS- 18:
-9+1.0/-1.5dB
reference level: 1kHz