Teac CD-5 User manual

TEAC.
SERVICE MANUAL
D-5
Compact Disc Player
COMPACT
DIGNAL AUDIO
CONTENTS
1 SAFETY INFORMATION 615.5 676, 6 oa WW Wish 6, 0: bes, acai! wl'e S26 Je biacete ed ola'6 ace lnle ere: 2
2 SPECIFICATIONS EE ETRE EERE S Se ee EEE ERR Ore ae ee ee 3
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3 CASE AND FRONT PANEL REMOVAL::-+--:------+280e0++ 4
HR BOKLA
4 ADJUSTMENT AND CHECKS .----- eee eee eee rece eee ee ener tees 5
BASS ¢ FEES
5 EXPLODED VIEWS AND PARTS LIST «-+----00::eeeeee ee 12
SEBEL N—YUAb
6 PC BOARDS AND PARTS LIST ------eeeeecr eect eee eeeeeereees 16
BML sS-—YURA
Effective : June 1994 5701068900

1 SAFETY INFORMATION
SAFETY INFORMATION C
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.
e@ If 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 2? CFR SUBCHAPTER J APPLI-
CABLE AT DATE OF MANUFACTURE
inc CORPORATION
1) INAKA-CHO MJBASHONO-SH4I TOKYO JAPAN
MANE AC TURED. ,
Optical pickup: Type : KSS-210A
Manufacturer : SONY Corporation
Laser output : Less than 0.4 mW on the objective lens
Wavelength : 760 — 800 nm
¢ CAUTION e¢ACHTUNG 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.
SSG (aserme sie nas pane ese Ue 400 t
rah ME We SGBT EN 46 | TROT
Ghee Gree rrecae tom staan
@ PASKRIFTEN SITTER PA APPARATEN SOM VISAS SOM UPPMANING OM ATT
APPARATEN OMFATTAR EN INBYGGD LASERKOMPONENT.
CD DETTE MAERKAT ER ANBRAGT SOM VIST I ILLUSTRATIONEN FOR AT ADVARE =
BRUGEREN OM AT APPARATET INDEHOLDER EN LASERKOMPONENT.
@ DETTE MERKAT ER SOM VIST PA ILLUSTRATIONEN ANBRAGT PA
INDERSIDEN AF TOPDAEKSLET FOR AT ADVARE BRUGEREN OM AT
YDERLIGERE FREMTRANGEN VIL VERE FORBUNDET MED FARE FOR AT
UDSATTE SIG FOR LASERSTRALING.
ADVARSEL- BETJENING AF ANDRE KONTROLLER OG REGULATORER ELLER o
BENYTTELSE AF ANDRE FREMGANGSMADER END BESKREVET HERI ER
FORBUNDET MED FARE FOR USDAETTELSE 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! SUOJAKOTELOA E] 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.
CLASS 1 LASER PRODUCT
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT

AUDIO
Number of Channels
2 SPECIFICATIONS
Frequency Response 1 — 20,000Hz + 0.1dB
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
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(A-—F 4 A)
2 A-FAra AF ve VANE
ebescoaca
Better than 105dB (1kHz) SN fe
Better than 98dB (1kHz) FAFR9IVYY
0.002% (1kHz) mae
Unmeasurable (Quartz accuracy) DWIDIVI-
Better than 104dB (1kHz) FrURleENL>—-yay
2.5Vrms PFOTKA
~15dBm —-21dBm (Optical) FIYUIWHA
30mW/ 33 Q ;
“Bitstream” conversion
8-times oversampling 20-bit digital
filter
3rd order Butterworth filter
Optical 3-Beam laser pickup
2-dimensional parallel drive
GaAlAs type semiconductor laser
780nm
44,1 kHz
16-bit linear/ channel
4.321 8Mb/ sec
Channel Modulation Code
Error Correction
GENERAL
Power Requirements
Power Consumption
EFM (Eight to Fourteen Modulation)
CIRC (Cross Interleave Reed
Solomon Code)
120/230V AC, 50 - 60Hz
(USA/Canada/ General Export
Model)
230V AC, 50Hz (Europe Model)
240V AC, 50Hz
(UK/ Australia Model)
14 watts
Dimensions (W x H x D)
Weight (net)
481 x 123.5 x 295mm
(18-15/16" x 4-7/8" x 11-5/8" )
7.2kg (15-7/8 Ibs)
Standard Accessories Wireless Remote Control Unit
(RC-530 : for Gold-finish version
or RC-529: for Black finish version)
x 1, RCA pin-plug cord, Battery
(SUM-4, “AAA”, “RO3” type) x 2,
Foot Base x 4,
Foot Height Adjustment Tool
@improvements may result in specification or feature
changes without notice.
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CD-5
2F er VAIL
1~20,000Hz + 0.1dB
105dB Ett ( 1kHz) :
98dB bit (1kHz) i
0.002 %JLF ( 1kHz)
RIE IRFMELF OKIE)
104dB Lit ( 1kHz)
2.5Vrms
— 15~—- 21dBm (OPTICAL)
30mW (33 Q fa78#)
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780nm
44.1kHz
Ey bh ULP/FeURIL
4.3218Mb/sec
EFM
CIRC
1OOV AC 50-60Hz
14W
481 x 123.5 x 295mm (W XH xD)
7.2kg
@7D4(VLAVEIY RC-529# felt RC- 530
@eevVTa7I—-Fx1
@ Bik (HB 4, SUM-4) x2
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CD-5 |
3 CASE AND FRONT PANEL REMOVAL
Shae BB i OT LA
number- or
mble in
Disasse
BSMICALT <A

CD-5
4 ADJUSTMENT AND CHECKS
at £1
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
Chassis (GND)
DD
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.
Earth ring
(Lead wire)
Pick-up case
1.E 77» 7 ASSY O25H8
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BURIED KD, ASRRERS (Fig. 4-1L) EKA TY yo YUT
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LTC KRU. (Fig. 4-2)
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LEO. EKIUMHBLETOCTAERLTC KS,
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CRATC HEU, BIT 7 Fat—9—, KRM, LDS
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LD Plate
Resistor
IMQ~10MQ
Photo Sensor
Earth
Fig. 4-2 Fig. 4-3
2. MU YAICDIT
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CD-5
3. Laser diode check
(lop (Intensity Optimum) check]
Connect a DC voltmeter to both ends of R415 on SERVO
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. (1=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-¥-SAA-FOPBF cy 7
(lop (Intensity Optimum) (###22)
(CY TT » FIED PETO ©)
DC #Vb A -Y—-ZSERVO PCBOR415 Of ic BRT SZ.
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(1=REBE/22) NY IT vy ARR THS loplh&Y 5mMA
DEBMUTWORU CE SHRT A. WMOBSI. BRL TH
BUREN HS —
KPBWRICLHERT SCL.
SERVO 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
OCI YTRAY —WORAA
(Bil)
KSS-210A
11191
646
YY PIVNo.
lop fH 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
230¥ 120
VOLTAGE SELECTOR
230V_ _120V
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CD-5
4-1 SERVO ADJUSTMENT 4-1 4+-—iaZ
TEST DISC: MCD-111 (or YEDS-18) FARF4 AZ: MCD-111 (KKK YEDS- 18)
V402 V403
oar
Jou,
W326
SERVO PCB
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 Tracking balance adjustment
1. Connect the oscilloscope between P407-3(TE |) and
P407-1(GND), and press the SEARCH (<4orP> )
button.
2, Adjust V401(T.B) so that the upper and lower
amplitudes of the tracking error signal waveform
become equal above and below OV.
Fig. 4-5
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CD-5
4-1-3 Focus offset adjustment
1. Connect the oscilloscope between W326(RFO) and
P407-1 (GND).
2.In the play mode, adjust V404(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 Jess at P407-5(FEIll).
If reading values are out of spec, adjust V404 again.
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Fig. 4-7
4-1-4 Focus gain adjustment
1. Apply 1.04kHz//10Vp-p to P407-6(FE Il) from an
external OSC via 100k Q resistor.
2. Play the track 4, and adjust V403(F.G) so that phase
at P407-4(FE |) is 90° with respect to that of the
external OSC.
Oscillator Oscilloscope
41-474 —-HAV4A VIB
1. ASBOSC & Y 100k QOWHAMES LT 1.04kHz,/10Vp- pols
5% P407-6 (FE ll AAT 4S.
2. 4H = BEL. P407-4 (FE |) &BBOSC & MfZHHD*90°
SKIT V403(F.G) SHB 3.
SERVO PCB
Fig. 4-8
4-1-5 Tracking gain adjustment
1. Apply 1.63kHz//10Vp-p (When using MCD-111) or
1.46kHz/10Vp-p (When using YEDS-18) to P407-2
(TE tl) from an external OSC via 100k Q resistor.
2. Play the track 4, and adjust V402(T.G) so that phase
at P407-3(TE 1) is 90° with respect to that of the
external OSC.
Oscillator Oscilloscope
41-5 b Sy Ft VUIT4VAB
1. ABBOSC &Y 100k QDMA UT 1.63kHz/10Vp— p
(MCD- 111 Cage) E ld 1.46kHz/10Vp-p (YEDS-— 18
= CHB) OFF SX P407-2( TEN) KAT S.
2. 4HAB* HEL, P407-3(TE |) &MBBOSC & OFiZHADSIN°
LSZH V402 (7.6) EHTS.
SERVO PCB

4-2 AUDIO ADJUSTMENT
TEST DISC: MCD-111 (or YEDS~- 18)
CD-5
424-747
FAbF4AAZ: MCD-111 (HIE YEDS- 18)
AUDIO PCB
Fig. 4-10
4-2-1 DC offset adjustment
1.
Connect a DC voltmeter to TPL(L-ch) and TPR(R-ch)
on AUDIO PCB, and adjust V101(L-ch) and V201 (R-ch)
so that the offset voltage becomes within 3+ 2mvV.
. Connect a AC voltmeter to the LINE OUT.
. Readjust V101(L-ch) and V201(R-ch) by repeating
the track 7 of MCD-111 between A and B for 1 sec.,
so that the click noise becomes — 60dB or less.
4-2-1DC47t» bie
1, AUDIO PCBMTPL(L-ch), TPR(R-ch) it DC Rb 2 —
9 —*REBLL AD ey BERS +QMMVITMSAKIICVION
(L-ch), V201 (R-ch) +##t 4.
2. LINE OUT t#Flz AC RIV bX -Y -ERRT SZ.
3. MCD-11107HB @ 1PRA-BRY E-b LL COE RD
IVy7/)4 KR— 6OUBUFEMSHKIIZVIOI(CL- ch),
V201 (R-ch) BRST S.

CD-5 |
4-2-2 ELECTRICAL CHARACTERISTICS BaiStt
a
. Output level
HALAL
2.5
+
0.5Vrms
REMARKS
ia =
. Channel level!
difference 0.5dB or less
Fy VRIVD RIDE
. Phones level
Ay
KRY
LAID
1.0
+
0.3Vrms
. Harmonic
distortion 0.005 % or less
DRE
. Frequency
response 20Hz~ 20kHz Within + 0.5dB
FE BEA S HE
:
ey
ve
95dB
or
better
. Channel
separation
Fae VRID 90dB or better
BANLP-Yay |
MCD- 111:
. Emphasis effect ~ 20 + 0.5dB
LVI rp VADER YEDS-18:
-9+0.5dB
33 Q load
OUTPUT level : max.
400Hz~20kHz filter in
reference level: 1kHz
DIN AUDIO
(Use SHIBASOKU 725
or equivalent)
DIN AUDIO
reference level: 1kHz