Dual CD 120 Service Manual

Page 34

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PC NetzteiI-Platte

Power P. W. B.
Platine Control Syst'eme/
Acquisition

- Version 1 +2 -

Page 42

2. Am Pickadliiuun dlMen die
Schmuben 9 B for die Laser-Diode,
den Onto-Sensor 9C (Folodloda) and
don Objcklhrtrlger 9A (Actuator) nichl
venue"! Oder geiocken warden Dies
Elnheil kann nur icomploll balm Her-
sleiler walled wetoen. Im Fella elnee
Defense am Laser. an ear Focodiodo
odor dem Member, mull die mambo
Pidr-up-Elrmeli au Muscat warden

3. Die flexible Leilerbe n keM nlel'rt se-
parat eusgeleusdll warden Bel def
Unlorbrochung odor olnom anderon
Deleld mud auen hler die geeemle
Pluck-up-Elnhei euegelauschl warden.
Bci alien Service-Amelia mm maul
gemm werden. den den Objekllv
9:331 beechmum oder beachadngt

Mach dam Auewechseln oaer Auebeu

Gee Died-Melon in der Abgleieh Olso-

'Mom. h r, Hall Gain und Hall Oilsel cdordor-

rc .

Eelm Elnbnu den Laulwmcea mus demul

geeomel weroen. den alle Kabel euBer-

hell: do: Bcweguwsnburfles dc: Pick-
up-Snlllmens und der Pledenschecm-

Mecharhk Iegen.

Abaleldl (alone Tabelle. Selle 49)
Bel einem loteien Nevebgleich 30m
zueret alie in der Tabeile alllge'lnhnen
Stellar nul Milielooslfion gebredll

men.

Bel Auswedlseln dos komplellen Lard-
wrkes Oder Pidr-uo-Sadmens mull dot
geeamle Anglelch durchgelnhn werden.

Wing (Fug. 1D]

SchrIeBl oer Pullenschechl. dnrcken
zwei sure von der Gmndelnheit In zwel
Ausaparunoon dos Planenschechlee

2. On the colic scdnnet assembly. do nor
loosen or usl screws 9 B on lhe
laser diode, 9 on lhc photo-diode
and 9A on tho colic scanner. This
assembly can only be adjusled In lhe

. In case of failure 04 lire lager.
the pholo diodes or lhe optic eeenner.
the assembly must be replaced

3 The flexible primed circuil camel be
repeat-d summery. In case cl lalmre
or deied. the colic ewmer assembly
must be replaced.

Take are ml in soil or damage lbe

lemee

Afler replecemem or disassembly oi the

iurnuble molar. alignmem or me lurnia-

Dle motor. HALL GAIN and HALL OFFSET

Is necessary. When re-essembllng. make

sure that no wires obstruu moving parts.

Allorlmem (see table. page 50)

Below proceeding wan eornplele adjust-
menl oi the pickup. lurn ihc cursors of
me ediuelmm potentiometer: lo a me
dium salmon. in ease the pickup or opnc
scam is replaced. a iota! adjusnenl
must be made.

Glens in. in War llup (Disk held.
. i

hen me also holder lien is cloned. lwo
pins lOI cunning from ihe base oi the

2. Sur i'eneemble 6e lecture opllque no
on deesen'er ou dam In: vi: 99
do In diode bur. BC awe-diode 91
9A lecleur antique. Get ensemble ne
peul ewe regle quen urine. En ans de
perm: du laser. dee cu
du Iecleur oblique lensemble don eve
rernoluoo.

3. be circuit rnorlme aouple ne mu! m
rembime eeperernenl. on cue de cou-
pure nu arm: demure. l'ensemhio
do lecture callous doll eve ran-place.
Prendre eoln 6e ne pee sellr on
endommaqer iobjoefil cl ins lentiiles.
Aprils ie rempleoemenl cu 0W
du muleur TD, 1'an moleur _
HALL GAIN et HALL OFFSEI cu
necesuirc.

Au remonmge uendre eoln quaueun
ill ne gene Ie malonnemonl dos
places en mouwment

Albumen! (volt ubieau. page 51)

Avnnl do procedcr nu reglage sample!
(In ieeleur de dlaque lourner lee cureeurs
dea polemiornetres dc reaghgo on posi-
llon madame. En can Ge templacemenl
du ieeleur aa dleaue ou leaeur opaque
ellecluer le regime complot

Fem-emu du vole! porno-disco.
(Eocene du dusque. fig. 10]
A la fennclure du volel oorle-disque.

42

1o:

\
§ 10F E
$.43;
§\_,-«1OG
5% g
13/13: -
,
5\flmx §
¢\ \j
I
\ 10L TIE _ -ft"° .

/ un- ' ,
Q r ss

fig, 11

Page 50

Alignment Ins'lruciions

Please fold open page 52
Sign: Source Adjusimom oi Funciion Maura-neat Wm { Observaliona
sign-i source pow: pains
I -
LLASER OU'ITUT
Osc. no TP 11. Adjust EFM signal mo mV
TPG LU PP relative to ground (GND) F19. 1
Compact disc - PLAY R 021
VMDIailallo 1.32V-22V-60-100mA
n 018
Fig. 26 PP PP Laser current
\
TRACKING SERVO OFFSET 4
03:. be 1'? 11. Adjust EFM signal
Compact disc - HAY TPG (L) R 013 I0 man'mum amplitude
Fig. 28 PP PP
; MCKING S§RVO GAIN 7
LF Generator 1.8 kw. Osc. and
SM phasn am 800 mv PLAY Frequency mew R 152 MIL-u as indicated Fla. 2
converter Fig. 28 switch Io
Compact disc WING Po; no. 23 P8 PS \
FOCUS SERVO OFFSET ,
09c. in TP1I. ! Amusi EMF signal |o
Comma disc - HAY TPG (L) R 102 1 maximum amplitude
Fig, 28 PP PS
FOCUSfiERVO GAIN
LF Gcncmor 10 kHz. 06: and Must as indicaled Fig 2
Shin phase mi 800 mv PLAY Frequency meier R 100 .
comma! Fig. 2B \ swim in
Comma disc 1 FOCUS Poss» Fig 28 P5 P6
DISC MOTOR HALL GAIN AND OFFSET
PLAY Osc. mm H 273 Hall Gain:
CHA to TP 9 F3 adlusi to same amoiiluoa
\ CH8 Io TP 10
Compact disc - 1P 8 LL)
I Hall Oflset:
; STOP 1P9 R234 :MlusnoDVDc
1 TP 10 R 299 Adiusi to u v DC
Hg. 28 P8 P8
DAC [NITIAL (only version 1)
OPEN Frequency m Adjust to 28.00) Hz
Compact disc - between I! 403 :t 1000 Hz
CLOSE 1P 6 and GND
Fig. 27 PD PD
AEHROR CHECK
quuency mater Check enor com 0 2:
Compact disc - PLAY human T? B - 0- ISO/m gout
and GND > 7501m resting! or
Pb. 27 PO possibla We

ammo-meow:
50

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