Panasonic sl ch 40 service manual

Page 1

SL-CH4O

I CONTENTS

HANDLE PRECAUTIONS FOR TRAVERSE DECK
PRECAUTION OF LASER DIODE .................
FRONT PANEL CONTROLS AND FUNCTIONS
DISASSEMBLY INSTRUCTIONS
INSTALLING SERVO P,C.E
INSTALLING DISC TRAY...
MEASUREMENTS ANDADJUSTMENTS.
TEST MODE INSPECTION
TROUBLESHOOTING GUI
BLOCK DIAGRAM IIIIIIIIIIIII

SCHEMATICS DIAGRAMS .........................................
TERMINAL GUIDE OF IC's TRANSISTORS AND DIODES.
PRINTED CIRCUIT BOARD...
WIRING CONNECTION DIAGRA

..d/
TERMINALFUNCTION OFIC'S 35~42
CABINET PARTS LOCATION. ..... 43
REPLACEMENT PARTS LIST 44~46
RESISTORS&CAPACITORS 47~5l

PACKAGING ......................
LOADING PARTS LOCATION.

I HANDLING PRECAUTIONS FOR TRAVERSE DECK

The laser diode in the traverse 090K (optical pickup) may break down due to potential difference caused by static electricity ol clothes

or human body

So. be carelul ol' electrostatic breakdown during repair of lpe traverse deck (optical pickup).

- Handling of traverse deck (optical pickup)

1. Do not subject the traverse deck (optical pickup) to static
electricity as it is extremely sensitive to electrical shock,

. To Dreventtne breakdown or the raster diode. an antistatic
snorting Din IS inserted into the flexible board (FPO board).
When removing or connecting the short pin. iinish the Job
in as snort lime as possible.

Take care not to apply excessrve stress to the flexible boaro
(FPC board),

4. Do not turn the varrabie resisror (laser power adjustment). li

nas already been adjusted.

by

m

' Grounding for electrostatic breakdown prevention

. Human body grounding
Use the anti-static wrist strap to discharge the static
electricity irorn your body,

. Vvorktable grounding
Put a conductive material (sheet) or steel sheet on the
area Where the traverse deck (optical pickup) is pieces.
and ground the sheet.

m

Caution :

Tne static electrrcrty oi your clothes will not be grounded
through the wrist strap. So. take care not to let you'
clothes touch the traverse deck (optical piCKuaI

Variable resistor
(Do not turn)

Optical pickup

Lens (Do not touch)

FPC

2,

1
Be sure to short this portion
(Use the shorting pin or clip}

iron plate or some metal:

LI} lo Cohuucl eieemcin

COMPACT

diae

DIGITAL AUDIO

030704

Tuner/Compact Disc Player

ORDER NO.MDQ40100102

SL-CH4O

Colour
I (K) Black Type I

Area
Surrix for I C I I
Model No.I Area 0 CU! I
(B I Continental Europe, 3
l Great Britain (K) r
(EG) I FR. Germany/Italy I
SB-CH4O SU-CH4O SL-CH4O SB-CH4O
TRAVERSE DECK : MECHANISM SERIES (RAEO'I 132)
I SPECIFICATIONS
I FM TUNER SECTION I CD PLAYER
Frequency range 87.50 - 108.00 MHZ Samplingtrequency A4_1 kHz
Sensitivriy . 23.3 dBf (4.0uv, IHF '58) Decoding 16-bit linear
total harmonic distortion Beam Sourcerave length Semiconductor laser/780nm
MONO 03% Number oio'nannels 2 - channel. Stereo
STEREO 0.5% Frequencyresoonse 2O H240 KHZ (+1, ~2 d8)
S/N Ratio S/N Ratio 90 d8 filter (JIS. A)
MONO . 60 03(55 d5: IHFI Wow and Flutter Below measurable Iirnit
Image rejection at 98 MHZ 35 05 Digital filter 4, times over sampling
SISI'EO separation D/A converter Multistage noise shaping
7 kHz 35 dB
Antenna terminaKs) 750(unbalanoed) I GENERAL
Powerconsumplion 130 W
I AM TUNER SECTION Powersupply AC 50 Hz, 230- 240 V
DimenSion (W x H x D) 270 X1844 x 304.8 mm
Frequency range Weight g 2 kn
MW 522-1611I

LW 144, -- 288 kHz
Sensitivity (lor 500 mW)
MW (at 999 kHz) 250 uV/m
LW (at 216 kHz) SOOLlVirn
Notes I
1. Specifications are subject to change witnout notice.
Weight and dimensions snown are aoDroximate.
2. Total harmonxc distortion is measured by the digital spectrum analyzer,
Am Iifier C I Tuner/Disc
System p / assetle i Speaker
player I player
P S D-CH4OE I
50%: su-cmoe l SL-CH4OE
SD-CH4OEB
SC-CHAOEB . .
. SU-CH4OEB E SL-CH40E SB CH4OE
' SD-CH4OEG
SC-CH4OEG i
Panasonic w

Page 2

SL-CH40

I CONTENTS

HANDLE PRECAUTIONS FOR TRAVERSE DECK.
PRECAUTION OF LASER DIODE .................
FRONT PANEL CONTROLS AND FUNCTIONS
DISASSEMBLY INSTRUCTIONS
INSTALLING SERVO P.C.B
INSTALLING DISC TRAY...
MEASUREMENTS AND ADJUSTMENT
TEST MODE INSPECTION ..................
TROUBLESHOOTING GUIDE

BLOCK DIAGRAM ................

SCHEMATICS DIAGRAMS
TERMINAL GUIDE OF ICS TRANSISTORS AND DIODE

PRINTED CIRCUIT BOARD .........................................
WIRING CONNECTION DIAGRAM.
TERMINAL FUNCTION OF IC'S
CABINET PARTS LOCATION.
REPLACEMENT PARTS LIS
RESISTORS & CAPACITOR
PACKAGING.
LOADING PAR SLOCA IO

I HANDLING PRECAUTIONS FOR TRAVERSE DECK

The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes

or human body.

So. be caretul of electrostatic breakdown during repair of the traverse deck (optical pickup).

. Handling of traverse deck (optical pickup)

1. Do not subject the traverse deck (optical pickup) to static
electricity as it is extremely sensitive to electrical shock.

2. To preventthe breakdown of the laser diode, an antistatic
shorting pin is inserted into the tlexible board (FPO board).
When removing or connecting the short pin, finish the job
in as short time as possible.

3, Take care not to apply excessive stress to the flexible board
(FPO board).

4. Do notturn the variable resistor (laser power adjustment). it
has already been adjusted.

0 Grounding for electrostatic breakdown prevention

1. Human body grounding
Use the anti-static wrist strap to discharge the static
electricity from your body,

2. Work table grounding
Put a conductive material (sheet) or steel sheet on the
area where the traverse deck (optical pickup) is placed,
and ground the sheet.

Caution : '
The static electricity of your clothes will not be grounded \ ~"//.

through the wrist strap. So, take care not to let your
clothes touch the traverse deck (optical pickup),

Variable resistor
(Do not turn)

FPC

Be sure to short this portion
(Use the shorting pin or clip)

1M!)

Iron plate or some metals
in conduct siectnciiy

SL-CH4O

CAUTION : This product utilizes a laser diode with the unit turned on", invisible laser radiation is emitted from the
pick up lens.
Wave length : 780 nm
Maximum output radiation power from pick up : 100 pW/VDE

I PRECAUTION OF LASER DIODE

Laser radiation from the pick up lens is safety level, but be sure the followings:

Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.
Do not adjust the variable resistor on the pickup unit. it was already adjusted.

Do not look at the locus lens using optical instruments.

Recommend not to look at pick up lens tor a long time.

PWNT

ACHTUNG: Dieses produkt enthalt eine laserdiode. lm eingeschalteten zustand wird unsichtbare laserstrahlung
von der lasereinheit abgestrahlt.

Weilenlange : 780nm
Maximale strahlungsleistung der lasereinheit :iOOpWNDE

Die strahlung an der iasereinheit ist ungefahrlich, wenn ioigende punkte beachtet werden:

1. Die lasereinheit nicht zerlegen, da die strahlung an der treigelegten Iaserdiode getahrlich ist.
2. Den werkseitig justierten einstellregler der lasereinhit nicht verstellen.

3. Nicht mit optischen instrumenten in die tokussieriinse blicken.

4. Nicht tiber langere zeit in die fokussierlinse blicken.

ADVARSEL: l dette a apparat anvendes laser.

RQLSOU78
(tor E area only) ROLSOOZl

mac! Avallaessa ja
sucjaluknus ohiiellaessa
diet amine naxymalon
lasersalsiiylle.

AB kaiso SMBSSSH.

RQT43892AA ADVARSEL: USYNLIG LASERSTRALING

. vso ABNING, MAR SlKKERl-IEDSAF-
' BRYDERE ER on: AF FUNKTION.
7 UNDGA UDSETTELSE FOR STRALING.

VARNING' Osynilg
lasersualnrng nér denna
dei a: «3qu och
spawn at urkopplad
eeiiakia ei simian.

LASER PRODUCT

MTWZAA

VOHSICHT-Unsichtbare DANGER-invisible
Laserstralilung. wenn laser radiation when

ADVERSEL' Usylillg

laserstralingnar daksel Abdeckunggeottnet . open,
LUOKAN 1 LASERLAITE a; °9 mm "1° Gem 5W AVOID DIRECT EX-
KLASS 1 LASER APP AR AT eksponenng $533575 3055mm Flotsotm Posuna TO BEAM.
_ 3 _