SLPJ 27
SLPJ 27
SL-PJ27
Compact Disc Player
WISE
COMPACT §(IESIT/IL_|
Color
(K)... Black Type
Area
Country
Code
88. taag Continental Europe.
tate rrUta
Ad
Oceania.
SPECIFICATIONS
@ Audio @ Pickup
No. of channels 2 (left and right, stereo) Wavelength 780 nm
Frequency response 2~-20,000 Hz, +1 dB
Output voltage 2 V (at 0 dB) m@ General
Dynamic range 94 dB Power supply
S/N ratio 96 dB For Continental Europe: AC 50/60 Hz, 220 V
Wow and flutter Below measurable limit For Oceania: AC 50/60 Hz, 240 V
Output impedance Approx. 1 kQ For others: AC 50/60 Hz, 110 V/127 V/220 V/240 V
Load impedance More than 10 kQ Power consumption 10W
Dimensions (WxHxD) 360 x 95.8x 290.5 mm
Weight 3.4kg
Mi CONTENTS
PLACEMENT .............. nee INTERNAL CONNECTION OF E.L..........::cccscseseneaessseessensee
CONNECTIONS.. see SCHEMATIC DIAGRAM.................++
ACCESSORIES ..........:ccsssesesecsssenses neon PRINTED CIRCUIT BOARDG............
PRECAUTION OF LASER DIODE ...............-:scssssrsossesssersreeenes 3 WIRING CONNECTION DIAGRAM
LOCATION OF CONTROLG.,.........c:sssccesseseessersessesssensnesnees 4,5 TERMINAL GUIDE OF IC’S,
HANDLING PRECAUTIONS FOR OPTICAL PICKUP.......... 6 TRANSISTORS AND DIODEG..............ccseecenseteteesenree 36
INSTRUCTIONS FOR TRAVERSE OIL ...........::cccssseeresscoesees 6 TROUBLE SHOOTING GUIDE............:ccsssssesseceteneeorese 37~39
DISASSEMBLY INSTRUCTIONS .......000...ccsessccssssesseesnee 7~10 REPLACEMENT PARTS LIST ..........--ccsssssesseetersue
atenee 40~43
MEASUREMENTS AND ADJUSTMENTG................04 11~15 PACKING ..........scceesceessssnessceees
NEW SERVO GAIN ADJUSTER..........2..2::cssecsseossseesscsesnerens 15 EXPLODED VIEWG..............0.0
TERMINAL FUNCTION OF IC’S...... w 16~20 RESISTORS & CAPACITORS
BLOCK DIAGRAM .........scsscssessssssessssernsssensecseetecensenensens 21~23
@
Co., Ltd.
Matsushita Electric Industrial
"Technics Central P.O. Box 288, Osaka 530.91, Japan
SL-PJ27
M@ PLACEMENT
Before placement Notes of placement
The optical pickup is secured to prevent damage during transport. @ This unit is a precision instrument. Be sure to place it ona
Be sure to release it before use. fiat surface.
@ Avoid piaces such as the following:
[co)
+[<)
Near any equipment or device that generates strong magnetism.
On any heat-generating equipment or device, or in any place
where the temperature is high (35°C or higher).
(with inclination!) Lock shaft Pull to unlock. @Extremely cold places (5°C or below).
(in the locked eNear a tuner or TV (It may cause noise in the broadcast, or
condition) disturbance of the TV picture.)
@ When carrying or storing the unit, handle it with care so it
is not subjected to any strong bumps.
Note: Always remove the disc before storing the unit for any period of
When carrying this unit, be time.
sure to remove the compact ® To avoid problems due to vibration.
disc from inside the unit, and Do not place a book or similar object under this unit.
press the lock shaft to secure Do not route the connection cables (of this or other units) across
the optical pickup. (Make the operation panel, across the top, or under the unit.
sure to place the unit with the
rear panel facing downward.)
Mi CONNECTIONS
Notes:
Turn power off on all components before making connections.
See the operating instructions of the tuner for details.
Rear panel of this unit
To the
“AC OUTLET”
_ Of the amplifier
or the graphic
equalizer
or to the
household outlet
RG
To the “CD” To the “CONTROL” terminal
terminal of the of the amplifier
amplifier
Mi ACCESSORIES
® AC power supply cord (polarized) ........ 1 e Stereo connection cable ...................... 1 @ L-type Cable ooo...
ee eceteeeetetenees -2
SFDACO5E03 (E) (SJP2249-3) (SJP2257T)
SJA173 (GN) |
RJA0004 (GC)
Laser radiation from the pick up lens is safety level, but be sure the followings:
not disassemble the optical pick up unit, since radiation from exposed laser diode is
1. Do
dangerous.
2. Do not adjust the variable resistor on the pickup unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pick up fens for a long time.
ACHTUNG: Dieses produkt enthalt eine laserdiode. Im eingeschalteten zustand wird unsichtbare laserstrahlung
von der lasereinheit abgestrahit.
Wellenlange: 780nm
Maximale strahlungsleistung der lasereinheit: 100 1W/VDE
Die strahlung an der lasereinheit ist ungefahrlich, wenn folgende punkte beachtet werden:
1. Die lasereinheit nicht zerlegen, da die strahlung an der freigelegten laserdiode gefahriich ist.
2. Den werksseitig justierten einsteliregier der lasereinreit nicht verstellen.
3. Nicht mit optischen instrumenten in die fokussiertinse blicken.
4. Nicht Gber langere zeit in die fokussierlinse blicken.
Obs:
Apparaten innehaller laser
Komponent av héger laserklass
an klass 1.
RQLS0021
VORSICHT-Unsichtbare § OANGER-Invisible
Laserstrahlung, wenn J laser radiation when
Abdeckung gedffnet. open.
Nicht dem Strah! AVOID DIRECT EX-
aussetzen. no.soo2t § POSURE TO BEAM.
SL-PJ27
MI LOCATION OF CONTROLS
ore athe
rN
HIGH SPEED ACCESS SYSTEM
Control section
@ Power switch (POWER HOFF =ON) © Buttons for CD edit function (CD EDIT)
@ Disc holder *Edit tape length button
(EDIT TAPE LENGTH)
© Time mode select button (TIME MODE) When compact discs are
can be used to calculate
to be recorded to tape, this button
the number of tracks that can be
Use this button to select the desired time display mode.
recorded on each side of the tape, depending on the length
of the cassette tape used, so that as little tape as possible is
4) Buttons for program function
wasted.
eProgrammed-play button (PROGRAM)
Pressing this button initiates the programmed play mode. ¢Tape-side select button (TAPE SIDE AB)
When recording compact discs to tape, this button can be
You can then enter specific tracks using the skip buttons.
used to check the number of tracks and amount of tape left
Clear button (CLEAR) over for side A or B.
Each pressing this button makes one track cleared from the
programmed sequence.
© Auto cue button (AUTO CUE)
Pressing this button causes the unit to skip automatically to
© Search buttons (<< SEARCH PP) the beginning of the next track on the disc and switch to the
These buttons can be used to move rapidly forward or play standby mode.
backward on the disc during play. The search speed is slow
when the button is pressed at first and becomes faster if the @® Play button (> PLAY)
button is pressed and held continuously.
@® Pause button (11 PAUSE)
© Skip buttons (<< SKIP >)
These buttons can be used to specify the number of the @® Stop button (™ STOP)
desired track and the desired recording time of the tape. This button can be used to stop the disc play, as well as to
cancel the various play modes.
© Repeat button (REPEAT)
® Disc holder open/close button
(4 OPEN/CLOSE)
SL-PJ27
Tate |{or-}
(eo)g-m-y=1eq (fe) |
“ATTENTION SERVICER”
Some chassis components may have sharp edges. Be careful when disassembling and servicing.
SL-PJ27
Mi DISASSEMBLY INSTRUCTIONS
Warning: This product uses a laser diode. Refer to caution statements on page 3.
* This CD player is equipped with FPC boards, so handle them with care during disassembly and reassembly.
Disc Holder
Cabinet
Front Panel
Procedure
1-4
Operation P.C.B.
| <j |
SL-PJ27
Ref.No. | Removal of the yoke, magnet Ref.No. | Removal of the disc holder and
5 and clamper 6 power switch rod
Procedure Procedure
14-5 oe Yoke 1-4-6
¢ Removal of the disc holder:
1. Push the rack gear slowly in the direction of the
arrow until the disc tray comes up.
2. Pull out the disc holder further to remove it.
Note: Pull the lock shaft on the bottom panel to the
“FREE” position.
e Removal of the power switch rod:
1. Set the power switch to the “OFF” position.
Claw with projection 2. Remove the power switch rod by using a
Clamper screwdriver.
1. While lifting the claw with a screwdriver, rotate
clamper in the direction of the arrow and remove
the yoke and magnet.
2. Release the claw of the clamper.
Main P.C.B.
Operation P.C.B. Lead Wire
Lead Wire
Procedure Procedure
Hilo dersati ¢ Removal of the servo P.C.B. 146-7 Remove the drive belt.
= 10 1. Remove the 3 screws (O~®). 11 Remove the 2 screws (@, @).
2. Unsolder the 2 terminals of spindle Release the 2 claws.
motor. Pens
Unsolder the 2 terminals of the lead
3. Remove the FPC board from the wire of the loading motor.
optical pickup.
Caution:
To prevent the breakdown of the laser
diode, antistatic shorting pin is
inserted into the FPC board.
e Removal of the loading motor P.C.B.
1. Remove the 2 screws (@, ©).
2. Unsolder the 2 terminals of loading
Drive Belt
motor.
: Servo P.C.B.
FPC Board Loading Motor
Loading Motor
Terminals
—9 9 —
SL-PJ27
Ref. No.
12 Removal of the optical pickup 13 Removal of the power supply P.C.B.
Procedure Procedure
Refer to the handling precautions for 1-2-4 ¢ Removal of the power supply P.C.B.
10-12
optical pickup and instructions for 313 1. Remove the 3 screws (@~®).
traverse oil (See page 6). 2. Remove the flat cable (CN11).
3. Unsolder the 2 terminals.
1. Remove the 2 screws (@, @).
2. Unsolder the 2 terminals and the 2 ¢ Removal of the AC outlet
screws (©, 6). 1. Unsolder the 2 terminals.
2. Release the 2 claws.
Optical Pickup
2®
AC Outlet
Terminals
Caution:
1. Turntable height adjustment is necessary any time
the turntable or spindle motor is replaced.
2. The (+) terminal of the spindle motor is indicated
by the red mark.
Turntable
0.9mm clearance
0.9mm gauge (RZZ0297)
SY
Spindle
motor
a:
:
Caution:
Refer to turntable height adjustment (see page 12).
SL-PJ27
PREPARATION
1. Remove the cabinet (see Ref. No. 1 of the disassembly
instructions).
2. Remove the disc clamper and magnet (see Ref. No. 4, 5 of
the same).
3. Remove the disc holder and power switch rod (see Ref. No.
6 of the same).
Place the test disc and magnet on the turntable.
Switch the player on.
OY:
Ou First push the Open/Close switch $102 in the direction of
the arrow and then, push switch $101 in the direction of the
arrow as shown in the figure.
ADJUSTMENT POINTS
© Servo P.C.B.
VR104
RY
FEG
EP (GND)
ase
ANVRI 03 (Tracking (Tracking gain adj.)
balance adj.) (Best eye adj.)
"Z
VR102
GNO Ha
We een —
RaGaRG
connector
VR106 VR101 = VR105 VR104 «=VA102 VR103
Adjusting Procedure
a If you have replaced the optical pickup, spindle motor, Turntable
or turntable, do the following adjustment: Clearance gauge
(RZZ0297)
(1) TURNTABLE HEIGHT ADJUSTMENT
1. Insert the 0.9 mm clearance gauge (RZZ0297) between
the turntable and the loading base (see the figure at
right). t
Spindle motor
2. Tighten the turntable retention screw with the 1.27 mm
allen wrench.
3. Connect the oscilloscope’s CH. 1 probe across VR104‘s
(+) and VR106's (—) terminals via Note 2. If the measured amplitude greatly surpasses or
a filter.
falls short of the range above, set VR105 at or around
(Note: A voltage of 2.5V appears at the V. REF terminal.
the center, then try to adjust the height again. (Then
Take care not to short the player’s chassis to the oscil-
be sure to adjust the focus offset as well.)
loscope ground.)
Oscilloscope setting: VOLT.......... 50 mV
SWEEP......... 1ms.
Oscilloscope
Input coupling... DC
°Filter for turntable height adjustment FA O
4. Adjust oscilloscope’s DC zero balance.
5. Switch the player power ON, and play the test disc Resistor: ERDS2TJ103 (10kQ) o
(SZZP1014F or SZ2ZP1054C).
Capacitor: ECQV1H104KV (0.1 uF) 9c
6. Measure the voltage amplitude of the signal on the
oscilloscope.
Note 1. If the measured amplitude is within a range of +/—
15 mV, the turntable height is correct. If it is outside
this range, adjust the turntable height by using the
clearance gauge as a pry.
If the amplitude exceeds +15 mV, lower turntable.
If the amplitude is below —15 mV, elevate the turntable.
ee
until the vertical fluctuation of RF signal is
minimized and the eye pattern is most stretched.
5. After completing the adjustment, lock the mechanical PA AAA,
7s :
adjustments with lock paint (RZZOLO1).
Input coupling... AC
B\\NSSESROO
TAA
RAIA AA A
Ct Eloi
Input coupling. . AC (both CH. 1
and 2)
mia
Vw sia CHe2
Trigger mode ... .NORM (trigger
CH. 1.)
nN.Switch the player power ON, and play track 9 on the
test disc (SZZP1057C).
at Trigger the oscilloscope’s CH. 1 so that the following Minimize the amplitude or make @=©.
waveforms are observed. Adjust VR105 until the dip in Smooth
the RF signal envelope on CH. 1 is smooth and the signal envelope
and 2)
Trigger mode. . pe (trigger
CH
N. Switch the player power ON, and play tele 9 on the
test disc (SZZP1057C).
Minimize the amplitude or make @=©.
ad Trigger the oscilloscope’s CH. 1 so that the following
Smooth
waveforms are observed. Adjust VR103 until the dip in envelope
the RF signal envelope on CH. 1 is smooth and the
signal amplitude on CH. 2 is minimized, i.e. when
amplitude A equals amplitude B.
(8) TRACKING BALANCE ADJUSTMENT 5. Set the servo gain adjuster’s gain switch to position
. Make sure that the servo gain adjuster’s gain switch is
—s “4”, and adjust VR106 so that the wafveform of the
set to position “2”. output section marked with > is balanced.
N Set up the AF oscillator output for 1.1 kHz, 600 mVp-p, 6. Disconnect the servo gain adjuster’s leads from the
and connect it across the OSC and GND terminals on the player.
servo gain adjuster.
bed Connect the oscilloscope’s CH. 1 probe across
(+) and SIRE (—) on the Servo P.C.B. and CH. 2 probe
iil i li il i
(+) to the OSC terminal on the servo gain adjuster.
Oscilloscope setting: VOLT......... 100 mV (CH. 1)
200 mV (CH. 2)
SWEEP........ 0.1 ms. iee A
Input coupling. .AC (both CH. 1
and 2)
illpel eliNt ps
ala’
| ‘alla
PANNi?
PAPA -Y
|lal .
Trigger mode .. .NORM (trigger
= Switch the player power ON, and play the test disc
fal
(SZZP1014F or SZZP1054C).
XX This section of the waveform must be
balanced.
SL-PJ27
©000
Servo gain adjuster
(SZZP1017F ) GNO OSC Oscillator connection Conversion connector
terminals (SZZP1032F )
@ ON/OFF switch @
COON GNO ©
Selector }
) F osc ©
22
TP3TP2 3
on TPA
Oscilloscope Oscilloscope
Vara
connection
roo terminals
O~ 0} Tp2 TP3 TPI
ee 4
es G |CH1
—10.3V Ggno +10.4V
® Chassis ©
(Main) (Ground) (Main)
¢ Main P.C.B.
CN11A
D16 (Cathode)
+10.4V
cn118 \@ Connect the red
lead wire of servo
gain adjuster.
Ce
N NO
Es
nNw FPO
FGC
Focus error signal oytput
Focus gain up signal input
(Not used, connected to GND)
Oo TGC
(Not used, connected to GND)
pe © 2
o|
o
vcTiw
Ed
PD balance adjustment
° POT
ae Ee
Ww = BDO
Ee! Ex
Tracking balance adjustment
= [20 [0 |oeomecin
saan |
11 TBL2 32 RFDET
Function Function
ae ps[tev [0 [ramirnesnae|
Pf |
Ee TE OUT ae
[ae|FeBER [0 [Forth
Tracking gain adjustment
FE OUT Focus error signal output 30 CNT1 Control input (FOON: Focus
Servo On signal)
riangular wave oscillator Control input (TRON: Tracking
fiof cw | o | capacitor output ae sled Servo On signal)
. Control input (KICKF: Kick
fd VREF a Reference voltage input CNT3 a Direction (Forward) command)
: : Control input (KICKR: KICK
ie ARF is te RF signal input CNT4 Hlafi Direction (Backward) command)
CDSL sy Data slice filter capacitor input TRVF eae 23 Traverse forward command signal
Fe
fia] rec fot Frequency difference signal input
;
PVCC ae Drive power supply
|
driver
Non-inverting output of
2 vcc pete Power supply TD+
tracking driver
TB External transistor base
driving output
FO- OL +]Inverting output of focus driver
re [er
Tracking error signal input Reset signal output
a — Ea ANS es eran)
Hee Muting control
De-emphasis ON signal
Tracking servo ON signal
Ps[se [0 [eweroacnen
STAT Processing condition
(CRC, CUE, CLVS, TT STOP, FCLV)
[woe [eforstar
con
(Not used, open)
[ae[awe
[6 [cet na en
L channel deglitch signal
3mm|
m =n EFM signal input (PLL)
x Clock output (16.9344 MHz)
2 (Not used, open)
PLL extract clock input
vuCc x
vss GND terminal 2 | (4.3218 MHz)
07
Sub-code frame (Q data) 5 vo 16K RAM data input/output
clock (7.35 kHz) DO
are
eee]
16K RAM address signal
i)
(RAMAO: LSB, RAMA10: MSB)
RAM/A10
SL-PJ27
v0 vo
Division Division
Not connected
Optical servo condition
(Track cross) input
Sub-code block (Q data) clock input FL glid signal and key scan data
CLOCK
(7.35 kHz) signal
Bs
eee
SCSL = H : System clock = 192 fs
SCSL = L: System clock = 196 fs
Oscillator output (not used, open) (fs = sampling frequency)
rm
8.4672 MHz or 8.6436 MHz to XT (not used, open)
Pe[ve
7 BCKI Serial data bit clock input (8.4672 MHz or 8.6436 MHz)
Power supply terminal
Digital ground terminal
(connected to +4.8V)
SQN
™@ BLOCK DIAGRAM AN8374S
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LC3517BMLI5T
VREF
SERVO PROCESSOR
tot
I6K RAM
Tracking AN8373S
balance adj.
OPTICAL PICKUP (VRIO6)
SERVO AMP
p-------3-i} 10 i —_
F.T ga indz6
in voo Chip select, write
enable output enable
down | - DED 39,
T gain hes
up oss!
234 : Speed controi oy
Position F ga in 24
sensor up =] ga MN6625, control
T loop tilter
4'9 VREF
Qiol 6 U8
Auto power & 22 DIGITAL SIGNAL PROCESSOR
contor! é1 d
[— he SMSSOTESET
Distinctin of ves b' @®
direction Sync. pattern
von b33 DIGITAL FILTER ke
Syndrome
Tracking computation
p-———-------—-—+4
tion
gain adj. Control
flag count
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nn GN pa ed
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alanc (x4)
offset adj. 12 v $
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KEY MATRIX
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LOADING MOTOR
AN8374S
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detection le} detection computation ccu von 022 DIGITAL FILTER ie D/A CONVERTER
flag count
C40 Sra ee eae PE ek ay ge Ea ee Fa] [fe oo pF ee oe
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EFM a
Synchronize a duict | | | | LM833M63
Protection emoculation Working Ran AUG | | |
Sub code
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Timing
en jee t Ho Sie;
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KEY MATRIX
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BA4556FTI
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FL DISPLAY Motor control
Mi SCHEMATIC DIAGRAM 3
M@ INTERNAL CONNECTION OF FL (Parts list on pages 40, 41, 47, 48.)
¢ Grid connection diagram (This schematic diagram may be modified at any time with
development of new technology.)
126
Notes:
OPTICAL PICKUP
°S1 : Power switch (POWER Hl OFF m ON) in “on”
position.
© $2 : Voltage selector switch. [For (GC) area.] ( FOCUS} (TRACKING)
SPEED
¢ $101, 102 : Disc holder open/close detection switches. RAL oa LHON
NSOR
e $601 : Disc holder open/close (4 OPEN/CLOSE) switch.
° S602 : Stop (HB STOP) switch. bieCNIO fa
¢ S603 : Repeat (REPEAT) switch.
(eo) G
° $604 : Pause (§— PAUSE) switch. PY servo CIRCUIT R103 1.2K
—
3)= 00]
Of 0)Ol
* The parenthesized are the values of voltage generated during
playing (Test disc 1kHz, L+R, OdB), others are voltage values
in stop mode.
¢ Important safety notice:
Components identified by A mark have special characteristics
important for safety. When replacing any of these components,
use only Wyle acs specified parts. 1
R10 120
¢ Cover the parts boxes made of plastics with aluminum foil. oe 1647
G7) 800 Te out (6)
e Pin connection ¢ Ground the soldering iron.
G6) RFDET TE BPF
¢ Do not touch the pins of IC or LSI with fingers directly. 10V)49 v 64)
seg
cv,
a
commonon [3 Efe a BE
Gey
a | ov)
G3)
ee
ao
~
3.)1G~12G----Grid.
Play
2ms O.1V/0IV
Uh
a2v
oP
\ Play
2mso02v/Dlv —
0.4V
p-P
Play ae Ploy
rey <
~70V - ov
OSus 2v/01V. 2us 2V/0IV O.2us 2V/01V
O.5pys O1V/D1V
Mi SCHEMATIC DIAGRAM
(Parts list on pages 40, 41, 47, 48.)
(This schematic diagram may be modified at any time with
development of new technology.)
A
Notes:
°St : Power switch (POWER ML OFF = ON) in “on” ge cpa
position.
°S2 : Voltage selector switch. [For (GC) area.] pan TROCUS \-{TRACKING)
*$101, 102 : Disc holder open/close detection switches. aa 081 Ton Le.
¢ $601 : Disc holder open/close (4 OPEN/CLOSE) switch. 5K —_
¢ $602 : Stop (MI STOP) switch. i (eo) tL eter
¢ $603 : Repeat (REPEAT) switch. am
° $604 : Pause (§l PAUSE) switch. A SERVO COURCUNTS -- sade cia, 47e
¢ $605 : Play (® PLAY) switch. ' 2 Are er
¢ $606, 607 : Search (<< SEARCH BP) switches. B T 143 |47° 2SAI547QSTV2
[S606 : <<q (B), S607: BP (F)] i : ae ae ae ae AUTO POWER CONTROL
* $608, 609 : Skip (qq SKIP Di) switches. € ‘=
1C103
[S608: kq<q (B), S609: PP (F)} AN8377N
¢ $610 : Time mode select (TIME MODE) switch. FOCUS/TRACKING
/TRAVERSE COIL DRIVE
¢ S611 : Program (PROGRAM) switch. CBTECDRIVES aobdce f
© $612 : Clear (CLEAR) switch. cN103
° $613 : Auto cue (AUTO CUE) switch. |_| 'S :
° S614 5 Tape side select (TAPE SIDE A/B) switch. Owe tev) Koay) (0.2v Ka
a eee cere? :
d _\n 0.4V ap
7 10.15Vp-p
Waene eave Play 2ms. 0.1V/DIV a
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Dwg ee [Pw maa
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gain adj. Mie ®
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Ploy _. Plo ‘ gain adj. ®
— 25 — ee
10 11 12 13 14 15 16 17 18
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Q601 603,604, 605,607 ee SWITCHING( REMOTE)
2SDIS9IAQSTA
FL DRIVE
uk402
remote [| %,
IN (3)
Cy 9405
DTCI24ESTP
uk 401 vie 2} SWITCHING
sie
CONTROL (REMOTE) = 50ys.IV/DIV.
1
;
(TO AMP)
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DTC 124ESTP
*e33
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h 2) b SWITCHING = ay
9 S (AMP CONTROL) osps2W/DW.
£ a 5V
[EW Power supPLy cIRCUIT For [EJarea. [J Power supPLy CIRCUIT For(GC) area.
Asi
<2 As|
( POWER )
(POWER)
-28.3V z A
a = A
gs$¢ L2
1c4o1 = AAC 220V
ke ~ 28.3 (50/60H2)
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mnlee CONTROL Olt AC 110 /127/220/240V
PERINE 25B1238QSTV6 eg /eonn)
REGULATOR
5V
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-30V
0.5ms.10V/DIV.
ia 5y
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A
« 4 Lt wv AC OUTLET AC OUTLET
Play gS 5ms.2V/D1V. (UNSWITCHED)
sv S°T 11V & AC OUTLET TERMINAL
Le xs TERMINAL CIRCUIT CIRCUIT
50ys.2V/DIV. Ploy ay. Co AC OUTLET
— | (UN SWITCHED)
Play
Sms.2V/DI1V. oy 1
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SL-PJ27 1 a
1 2 3 4 5 6
A LN SERVO PC.B.
IN
REMOTE
AMP)
(TO
]
[CONTROL
ae
Aa (Leh)
OUT
LINE
(Reh)
SPINDLE
MOTOR
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aoe
ae
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10 11 12 13 14 15 16 17 18 19
(HWO/127/220/240V 50/60Hz)
AC OUTLET —\ ee i .
-
_ : 4 : : a = :
TERMINAL PC.B. SAV 2 a 4
. : : a
Gacy,
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|: : [a
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ae
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(UNSWITCHED)
AC OUTLET
AC IN aera
LAC IN |
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(220V 50/60Hz) 24
(240V 50 /60H z)
CNI TI
fanee (Power transformer )
eles :
oe
NSCs
Mi WIRING CONNECTION DIAGRAM Mi TERMINAL GUIDE OF IC’S, TRANSISTORS AND DIODES
AC OUTLET
TERMINAL P.C.B.
{ UNS WITCHED)
Ti (Power transformer)
REMOTE panrsaneKe
[18P|
IN CONTROL
(TO AMP)
LINE OUT
(Leh) (Reh) ee ee
ee a oe
Cr Cl
DTA114ESTP,
DTA124ESTP, Anode
Ze
DTA143ZSTP
18S254TA,
\ Cathode
SVDS5688GT3
Ca o——_}q}-——0 A
LOAOING MOTOR
$102
{OPEN/CLOSE ) 28C3311QRSTA , 2SB1238QSTV6,
LM2940T5M
2SD1450RSTTA, " 2SD1862QRTVE6,
prea 2SD1991AQSTA 2SB12400RTV6,
OPTICAL PICKUP ( MA4062HTA, 2SA1547QSTV2
MA4082MTA, <>
A SERVO P.C.B. MA405iMTA,
aca MA4330MTA, LEP 8
ca0-——fg-—o a MA4091MTA é CieZL c E
Resistance
Unit
SPINDLE MOTOR
CNSO! cN4o2 CN403 CN404
To Servo Gain.
Adjuster
Red Mark
CN6O02 CN6O3
SL-PJ27 SL-PJ27
Mi TROUBLESHOOTING GUIDE (Operation Sequence Just After Power On) (TOC Read Operation-PLAY Operation)
Power On Open/Close switch
SL-PJ27 Operation Sequence Check Sheet (no disc loaded) pressed.
|
p : I the Open/Close switch.
Disc loading | .
!
|
|
|
| DSL (data slice) operation
Has the tray closed
and stopped?
@ Microprocessor failure
(IC401)
@ Operation key switch failure
NO,
|
aetna
Focus pulled in.
= rea
1
ee ce40)
Play operation
@ Tray close switch failure
-|
! ---—-—-—— 4 | PLL operation
| | Yes
| Spindle motor starts rotation. | @ Microprocessor failure:
| CLV servo operation © 10401
| (11T mode) Tray closed? @ Loading motor driver failure: @ Pickup failure:
| Focus servo operation ; © 1C403, Q401, 402, motor
e Laser diode
@ Close switch failure
I
Laser diode came on?
NO! @ Control system failure:
I I ©1C101, Q101
| Tracking servo operation | CLV servo operation ® Microprocessor failure:
| | (phase compare mode) ¢1C401
eee !| !! Yes
— Laser
Remove
and the
diode turn-on check method —
the disc then close the tray,
laser diode will come on for
1 TOC reading he | Data demodulator circuit approx. 5 sec.
bo ie ee ee J | | operation Does optical @® Traverse control system
pickup move toward failure: @ Microprocessor failure:
[ DSL (data slice) operation |
© 10102, traverse coil ¢1C401
I | inner track?
*1C103, potentiometer @ Control system failure:
| Does focus lens No
©1C101, 102
F be Access control circuit make vertical
PLL operation operation movements? @ FO error amp. failure:
©1C101, 102, 103
| @ Pickup failure:
¢ Focus coil
! CLV servo operation STOP key pressed.
| (11T mode) Yes
|
| Stops after making focus pull-
|
| CLV servo operation in operation for approx. 5 sec. @ Microprocessor failure:
| (phase compare mode) © 1C401
|
Spindle motor NO} @ T.T. drive system failure:
| Started rotation? © 10301, 403, Q353
l © Q351, 352
TOC data display Spindle motor
| Yes®
a.
|
eh
es
aie
oD
‘li
k
SL-PJ27
No! @ FO error amp. failure: ARF signal turned No @® DSL circuit failure:
Focus servo locked? 9 into SRF signal? © (C102
©1C101, 103
@ Microprocessor failure:
¢1C401
@ Control system failure: :
©1C101, 102 Rietieatere No! @ oe
Tracking servo locked? ;
@TR error amp. failure:
j .
with PCK? e
@ Microprocessor failure:
¢1C401 CLV servo
Traverse servo NO] @ CLV circuit failure:
@ Traverse amp. failure: entered the Phase
operation normal? © 1C301
© 10101, 102, 103 Compare mode?
traverse coil
— Traverse servo checking method —
e Track skip occurs at inervals of a few
seconds during play.
Yes
¢ Pickup moves back and forth
between the innermost and
outermost tracks.
¢ Pickup moves to the innermost or
outermost track and stops there.
Has DSL circuit EFM signal and
No! @ Microprocessor failure: PCK clock outputs
NO} @ PLL circuit failure:
entered the
© 1C401 present? e1C102
Normal mode?
Play operation
;
3
4
SL-PJ27
DIODE
INTEGRATED CIRCUIT (S) DIODE
fo
DIODE
IM2940TSM IC, REGULATOR _[piove
MN6625 IC, DIGITAL S, P.
LC3517BML15T |IC, 16K RAM COIL (S)
MN15283PKG =|IC, SYSTEM CONTROL&FL DRIVE
MN1SSOPKH IC, REMOTE CONTROL D. P. SLQX400-D COIL
BA4558FTI IC, MOTOR DRIVE ELEXT2R2KA9 {COIL
SMS807ESET | 1C, DIGITAL FILTER ELEXT3R3KA9 COIL
UPD6376GSE1 if D/A CONVERTER COIL
Timea IC, L. P. F COIL
+ _—
hs
TRANSISTOR
({S) TRANSFORMER
(S)
AN8373S
[IC, SERVO AMP ml
SHE185~2
SJS9333A
P.¢.B. SUPPORT
AC OUTLET COVER
SOYD21-E
SOYD22
YOKE (A)
YOKE (B)
AN8974S IC, SERVO PROCESSOR SJS9331A AC OUTLET COVER SORD38-E
AN8377N IC, B.T. L DRIVE SJT390 FUSE HOLDER SOAD70A OPTICAL PICKUP
SHWD33 WASHER
[SERVO P.C.B.> SCREW(S) SORD37 ROLLER
TRANSISTORS SHWD34 WASHER
+
RHD30007 SCREW SNSD31 SCREW
2SA1547QSTV2 |TRANSISTOR XTBS3+8JFZ1 SCREW SHRD176-E COIL HOLDER
2SB12400RTV6 | TRANSISTOR XTB3+8JFZ SCREW XTB2+5G SCREW
[xrea+16ue2 SCREW RFKNLP370PBK LOADING BASE ASS’ Y
<SERVO P. C. B> XTB3+8F SCREW SMBD7-2 BELT
VARIABLE RESISTORS XYN26+F7 SCREW
Pens ACCESSORIES
9 10 12 3 14
ECUVIE104K8 0. 1U
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RCUV1H330KC 33P
ECUVIC224KR 0. 22U
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ERDS2TJ472T | 1/48 4 7K RESISTORS<SERVO P.C. B. > } ROUVIH470KC 47P
ERDS2T J331T [11/4AW 330 ERDS2TJ472T [va 47K RCUVIE103KB | 25V 0. 01U
ERDS2T J102T 1/4¥ 1K ERDS2TJ102T | 1/4¥ 1K ERDS2TJ471 RoUVINa7OKC | 50V 47P
ERDS2T. J120T
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1/48 12
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ERDSZT. J123T 1/4W 12K EGEA1CU222E [16v 2200U ERDS2TJ222 RCUVIE103KB | 25V 0. O1U
ERDSZT, J154T 1/4W 150K ECEA1CU102B 16V 10000 ERJ6GEYJ154V
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ERDS2T. J913T 1/AW# SK C 20 25¥ 0. 1U ERJ6GEYJ333V
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33K
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R404 ERDS2T J9L3T
R405, 406 = |ERDS2T. J124T
1/4¥
1/4¥ = 120K
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ERJ6GEYJ470V
Fook
1/108
| 47
R407 ERDS2TJ101T | 1/4W 100 10K
R408-410 |ERDS21J472T 1/AW 4. 7K
R411 ERDSZT. J104T
R413-416 — |ERDS2TJ222T
1/4¥
1/AW
100K
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RCUVLH681KB SOV. 680P
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