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