Teac VRDS-10SE User manual

TEAC
SERVICE
MANUAL
RDS-10SE
Special Edition
Compact Disc Player
COMPACT
DIGMAL AUDIO
CONTENTS
Ba
x
1 SAFETY INFORMATION OPT r eee r rere ere rere er eee eee eee 2
2 SPECIFICATIONS ---eeeccecceccree eter eee e eect essere eeeeeeee nee eres 3
ft
3 CASE AND FRONT PANEL REMOVAL --------+1-+ee0850 4
ERED
4 ADJUSTMENT AND CHECKS ----ee eee eeee ere eee eee e teenies 5
IEE LEED
5 EXPLODED VIEWS AND PARTS LIST -+-1-evrrerrrrees 12
SHRM EN-YUA
6 PC BOARDS AND PARTS LIST -evcrecccececcrceeereeteeeeees 18
RME NYU Ab
7 INCLUDED ACCESSORIES: +: +eecceceereeeeerceee erste sees tees 23
(thee
Effective : September, 1995 DOC @6000A

VRDS-10SE |
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
@
.
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
AULES 21 CFA SUBCHAPTER J APPLI-
CABLE AT DATE OF MANUFACTURE
TEAC CORPORATION
27 JNAKA-CMO MUSASHONO-SHI TORYO JAPAN
MANUFACTURED mH
Optical pickup: Type : KSS-151A
Manufacturer : SONY Corporation
Laser output : Less than 0.2 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.
+ ANVISILE LASER RADIATION WHEN OPEN AND
INTERLOCRS DEFEATED AVOID EXPOSURE TO BEAM
UNSCHTBARE LASERSTRAMAUNG TRITT AUS
3
VAPNING © OSYNIIG LASERSTRALNING NAR DENNA DEL
AB OPPNAD OGH SPARE AR URKOPPLAD
STRALEN AR FARLIG
@
DIESE
AUFKLEBEMARKE
IST
AN
DEM
IN
DER
ABBILDUNG
GEZEIGTEN
ORT
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
INBYGGD
LASERKOMPONENT.
+ USYNLIG LASERSTRALING VED ABHING, MAR
'SIKKE RHE DSAFBRYDEE EA UOE AF FUNKTION
UNOGA UOSATTELSE FOR STRALING
VAROITUS’ SUOUAKOTELOA E’ SAA AVATA LAITE SISALTAA
‘SEROIOOIN, LAME T TAA INAKYMATONTA
‘SKMMLE VAARALLISTA LASEASATEN YA
ADVARSEL - USYNLIG LASEABESTRALING NAR DENNE DELEN ER
APEN OG SIKKEF@<€ TSSPEAREN ER UTKOBLET
UNNGA UTSETTELSE FOR STRALING
@)
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
TOPDAEKSLET
FOR
AT
ADVARE
BRUGEREN
OM
AT
YDERLIGERE
FREMTRANGEN
VIL
VERE
FORBUNDET
MED
FARE
FOR
AT
UDSAETTE
SIG
FOR
LASERSTRALING.
ADVARSEL-
BETJENING
AF
ANDRE
KONTROLLER
OG
REGULATORER
ELLER
BENYTTELSE
AF
ANDRE
FREMGANGSMADER
END
BESKREVET
HEA!
ER
2
i
\
FORBUNDET
MED
FARE
FOR
USDATTELSE
FOR
LASERSTRALING.
[Lp
eo
ee |
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! SUQJAKOTELOA 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.
8
CLASS 1 LASER PRODUCT
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT

VRDS-10SE
2 SPECIFICATIONS
tt
AUDIO (A-F 4H)
Number of Channels 2 A-FtAFvr VRANWR 2Fe URW
Frequency Response 1 — 20,000Hz + 0.3dB AiR St 1~20,000Hz + 0.3dB
Signal to Noise Ratio Better than 110dB (1kHz) SN EE 110dB LIE (1kHz)
Dynamic Range Better than 99dB (1kHz) PAPE 9IVYS 99dB LAE ( 1kHz)
Harmonic Distortion 0,0013% (1kHz) meee 0.0013 %ELF ( 1kHz)
Wow and Flutter Unmeasurable (Quartz accuracy) DDIDII— AE IR BLL OK RBE)
Channel Separation Better than 110dB (1kHz) FevReNY-Yay 110dB ELEC 1kHz)
Output Analog 2.2Vrms FFOTHA 2.2Vrms
Digital 0.5Vp-p/75Q2 (Coaxial) FUINMA 0.5Vp-p/75Q (COAXIAL)
-15dBm —-21dBm (Optical) — 15~ - 21dBm (OPTICAL)
D/A Converter Bitstream Conversion DSJAITYIN-F— Ey KARU-L
Digital Filter 8-times oversampling 20-bit digital FUIWD «ANI BEA-N-PUYPUYT
filter 2EyhkFVIWI 4 Ia
Analog Filter 3rd order Butterworth filter PFFOFI+4NI— BRNI-D-RI4 WI
PICK UP (Ev IPT)
Type Optical 3-Beam laser pickup Ax OL VASE. HRSG AL
Objective Lens 2-dimensional parallel drive AL VARHAX 2 RIFT
Laser Type GaAlAs type semiconductor laser HR BL tf
Wave Length 780nm RE 780nm
SIGNAL FORMAT (a5 74—-Vy bh)
Sampling Frequency 44.1kHz BAAR 44.1kHz
Quantization Bit 16-bit linear/ channel Brite y bX Ey bh ULP/F ye VRID
Channel Bit Rate 4.3218Mb/sec EL —b 4.3218Mb/sec
Channel Modulation Code BA AH EFM
EFM (Eight to Fourteen Modulation) L>-aEAX CIRC
Error Correction CIRC (Cross Interleave Reed
Solomon Code) (—fiX)
ead 100V AC 50-60Hz
GENERAL HRED 18W
PowerRequirements 120/230V AC, 50-60Hz SETH 442 x 149 x 331mm (W XH x D)
(U.S.A./ Canada/ General Export a8 11kg
Model)
230V AC, 50Hz Eas
(Europe “U.K. Model)
PowerConsumption 22 watts
' Dimensions (W x Hx D)
442 x 149 x 331mm
(17-3/8" x 5-7/8” x 13-1/16" )
Weight (net) 11.0kg (24-4/16 Ibs)
Standard Accessories Wireless Remote Control Unit
RC- 481 : VRDS- 10SE(N)
RC-495 : VRDS- 10SE(B)
Battery (SUM-3, “AA”, ”R6" type)
x 2, Lock Plate
@ Improvements may result in specification or feature
changes without notice.
@I74VLVAYTIY RC-481
@ 82 Bit (3, SUM-3)x 2
@eox77L-+t
O RRA
* HRB LOMS, BORO PIE RBS SCEMBVET.

VRDS-10SE |
3 CASE AND FRONT PANEL REMOVAL
NEB a OM LA
Disassemble in number- order
BSMICALTC KAW

VRDS-10SE
4 ADJUSTMENT AND CHECKS
a CHE
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.
@Don’t touch the plated portion of the flat cable end
directly with fingers.
@Use care not to break the flat cable.
@ 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.
Earth ring
(Lead wire)
Pick-up case
Chassis (GND)
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
Fig. 4-2
1.~Ey977 »T7 ASSY ORE
@EYVIF YPASSY ERTERS. V-P-TAA- FORE
BUR
ILO
TD.
MTR
(Fig.
4-1)
S47
Vy
UT
DOUPBELTC RS, Ek. MOV SZBASMI Hit
BIKA TY ye VEALTCR Su
MAD) »yDELEEE CAV -F-FAA— FUMBELE
Avo
OLY 77 yTASSY EMO RAB, WEBS CHER
F—-ARMWSZLH. ART ARTIC, BRRE+T+OMIE
LT< PERU), (Fig. 4-2)
KLV-F-P4{A- Fi, MBS MD SE ARMASBE<IF
LED. EMBIBLESTOCHAEBLTC KEM,
@MONI,
ROAL,
HE
EVUORIA,
Fig.
4-230AMRE
BM
CHATCHAW,
BEIT
ZF
aL—7—-,
HRB.
LDS
V—heia,
FeAbneOWeMAKY
LIEWEC
RAW,
OVS hT AHF WVIBHO A y FARSIT SREB EARN ISG ¢
TER UW
O75 Y bTH-TFMIEHNPT OO CHIVERS L CHE LTS
TES Wo
@*E HAF 1d30W, 320°CUL FHA LY TIS < MBL TK KS
Wo
@LYVIT y TS ASSY KAKO S KOSABRIE EI LIYE SK
SW,
@LY7T yTSASSY ITE + GBIMA TUCK KEW
@tl HIVE LORET SBA, BE SOMME T
C PERU
Resistor
IMQ~10MQ
LD Pilate
Photosensor
Fig. 4-3
2. xg v Al DWT
@ LV — FHA AROARHIAHCST. HOKEOR, EB
BLY RDS Bem VL EBEL TK RSW
@VYACFERNEU TK RE.
@LVVAKBHAH < EBEREAAVERL ETO ROL
wi ULTC RAW.
VY RY Y-aAVIR—7— (KODAK HBT HY) tv
C-VFVA-W (LP.A) IRL Cate LL. ROR TUK
SIMHFRE LE OTC KRSL
|
|
1
3
:
|

VRDS-10SE |
3. Laser diode check
Clop (Intensity Optimum) check}
Connect a DC voltmeter to both ends of R407 on SERVO
PCB. Measure the DC voltage while playing a disc to check
that the measured value does not exceed the lop value
indicated on the pickup by 10mA. (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.
@ How to read numbers on sticker attached to the pickup
(Example)
KSS-151A
11191
646
Serial No.
lop value 64.6mA
DC voltmeter
38.b—-t-F4AA-KORBF ry 7
(lop (Intensity Optimum) 48822)
(Ey WPT y PERRET LDF RITO 2 &)
DCRVhA—-7—-*¥SERVO PCBO R407 Ope CTS
PLAY
POBRBESMWELL
COBEDSBRRAL
KIA
(1 =RIEBE/ 22) ME A7T vy SKRRETHS lop Mek Y
TOMA LLEMMIL TORU ESBS 5. PMOL. BUA
LTUSZ BREEDS So
* GBB BRBICTHERT SC Le
OV IT VY TRAY —WORAA
Bil)
KSS-151A
L134
646
DY PILNo.
lop #8 64.6mA
SERVO PCB
4. Anti-shock bracket
To protect the laser pickup mechanism from shocks and
movement during transit, it is secured by a special anti
-shock bracket. Before starting operation, be sure to
release this bracket, which is accessed from the bottom.
Fig. 4-4
4. BARE BIC DIT
ABIMERORDD
S
Cy
IT
SEFSRO,
Pike
Cw
ELTHV
ED.
KREGFSE
SBA,
DTVRRAEMR
LTC RSW

4-1 SERVO ADJUSTMENT
TEST DISC: MCD-111
4-1 + — RBS
VRDS-10SE
FARF4ADZ: MCD-111
V404 R407
V405 | F.GAIN |
v401
ae)
1[eeceee] M4
TP1 V402
V403
Fig. 4-6
VOLTAGE CONVERSION
Be sure to remove the power cord from the AC outlet
before repositioning the voltage converter switch.
l. 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.
SERVO PCB
VOLTAGE
SELECTOR
230V
a]
120V

VRDS-10SE
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 Clock frequency adjustment
1. Put the probe (10:1) of the frequency counter on R55.
2. Adjust C55 so that the clock frequency is 16.9344MHz
+ 423Hz at the stop mode.
4-1-3 Sled balance adjustment
1, Adjust V405(S.BAL) for OV potential between TP4
pin 1 and TP4 pin 2(GND).
4-1-4 Tracking balance adjustment
1. Connect the oscilloscope between TP1 pin 4(TE1) and
TP1 pin 6(GND), and press the SEARCH (<<or PP )
button.
2. Adjust V401(T.BAL) so that the upper and lower
amplitudes of the tracking error signal waveform
become equal above and below OV.
4-1-5 Focus balance adjustment
1. Connect the oscilloscope between TP1 pin 5(RF) and
TP1 pin 6(GND).
2. In the play mode, and adjust V402(F.BAL) so that
the waveform on the oscilloscope becomes maximum.
WRENS
\i RNIN
)
RR ERERRTY
AW
WY YY
\
ry
Wy
OV
NY
\
DANES
ASSUMED
Ate y 979A TOF aL—9 BEF ry 7
BRON
Ey
779
SV
TF
aL—H-MBALPHT
SCE.
(Py
Fy
TORBARI
ROE
Si,
BARK
BREET
Blk)
FA
AT
WEBRBLEW.
41-270 » TARR
1. RA YY -OPFA—-—TF(10:1) 4 R55 (X51 Ml) rH TS
2.
EILARBE
CO
BRAD.
16.9344MHz
+
423Hz
KSA
I
C55 eve T So
41-3 ALY KNGY ABE
1. TPAD 1BEVE TPAD 2BE Y (GND) MORALE OV Iz
KEK V405(S.BAL) SHEETS.
41-4 bh Sy Et VINS YAMA
1
TPIMD4BEY
(TEN
ETPIMEBEY
(GND)
ic
zy
a
RA—T#EEBL,
SEARCH
RY
1
(4d
EKIEPPH
)
HHT.
2G yt YT LIMES OREM OV EIN S & 9 V4O1
(T.BAL) SHEET So
41-574 -PANDY RB
1
TPIOSHBEV(RFVETPIMDSEGBEY
(GND)
Mic7y
a
AN-SEBRMTS.
2. PLAYIREE CH YO AI-POREMBAILI SHE IIE V402
(F.BAL) HET S~
\
AY)
N
ANY
M)
Maximum
NAW
i i
Fig. 4-8

4-1-6 Focus offset check
1. After adjusting the focus balance, stop the player. Check
for an offset voltage of 50mV or less at TP3.
If reading values are out of spec, adjust V402 (F.BAL)
again.
4-1-7 Focus gain adjustment
1. Apply 1.07kHz/10Vp-p to TP1 pin 1(FE2) from
an external OSC via 100k © resistor.
2. Play the track 4, and adjust V404(F.GAIN) so that
phase at TP1 pin 2 (FE1) is 90° with respect to that
of the external OSC.
Oscillator
Oscilloscope
| VRDS-10SE
41-6 74—-HAAVLy he
lL. DH -H ANDY APBRSTOPIRAGB I UT TP3OA 7 «yb
BEASOMVEL EF CHSCLE LATS.
4 LIBICA SE UBAIBE V402 (F.BAL) HES 3.
41-774 -HATA VBE
1. ABBOSC KY 100k QOS LT 1.07KHz//10Vp-p fa
BSETPIOI BEY (FE2Z)RANT 4S.
2. 4HHE SEL. TP1O2BE vy (FEL) EMBBOSC EOL
A90° I BKAILV404 (F.GAIN) FHT So
SERVO PCB
Fig. 4-9
4-1-8 Tracking gain adjustment
1. Apply 1.30kHz/10Vp-p to TP1 pin 3(TE2) from
an external OSC via 100k Q resistor.
2. Play the track 4, and adjust V403(T.GAIN) so that
phase at TP1 pin 4 (TE1) is 90° with respect to that
of the external OSC.
Oscillator
Oscilloscope
41-8 bFGF UTTA VE
1. ABBOSC EY 100k QOUHLESS LT 1.30kKH2/10Vp-p Of8
BETPID3BEV(TE2Z)KAATS.~
2. 4HABeBAL. TPIO4BE VY (TEL) EMMBOSC EOL
AX90° WSK FIT V403 (T.GAIN) EHTS.
SERVO PCB
Fig. 4-10

VRDS-10SE |
4-2 AUDIO ADJUSTMENT
. Output level
FAVAID
1kHz, OdB
2.2 + 0.3Vrms
. Channel level
difference
Fy VRIVDRIDE
1kHz, OdB
1.0dB or less
. DC offset
DCAIZY b
ikHz, — 60dB
. Harmonic
distortion
. Frequency
response
Fa BE
. S/N ratio
SANE
1kHz, OdB
20Hz~20kHz, OdB
0.004% or less
Within + 1.0dB
100dB or better
400Hz HPF in
20kHz LPF in
reference level: 1kHz
DIN AUDIO
(Use SHIBASOKU 725
or equivalent)
. Channel
separation
Fe VRID
BINV-Yar
1kHz, OdB
95dB or better
DIN AUDIO
. Emphasis effect
DLYIr YAR
16kHz, - 20dB
— 20+ 1.0dB
reference level: 1kHz