Pioneer cld 2760 k service manual

Page 1

Service

(U2 PIONEER

The Art of Entertainment

Manual

CD/LD PLAYER

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ORDER NO.
RRV1543

393 u .-

LD-2760K

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEMS) AND TYPE(S).

Model
Type Power Requirement

CLD- 2760K
TD 0
TL 0

AC] l0~ Z40V
ACI IO- 240V

Remarks

CONTENTS
1. SAFETY 'NFORMATION ................................ 2
2. PACKING. EXPLODED VIEWS
AND PARTS LIST .................... 3
a. SCHEMATIC AND
PCB CONNECTION DIAGRAMS ----------- 15
4_ PCB PARTS LIST ....................................... 38
5. ADJUSTMENTS ......................................... 43

6. SELF- DIAGNOSTIC FUNCTIONS """"""" 55
7. DISASSEMBLY/ASSEMBLY ---------
8. IC INFORMATION
9. BLOCK DIAGRAM
10. PANEL FACILITIES " .
11. SPECIF|CAT|ONS ................................... 77

PIONEER ELECTRONIC CORPORATION 44. Meguru 1-Chome. Meguro-ku. Tokyo 153. Japan
PIONEER ELEcmONIcs SERVICE. INC. PO. Box 1760. Long Beach, CA 90801-1760. U.S.A.

PIONEER ELECTRONIC (EUROPE) N.v. Haven 1087. KeerergIaan L 9120 Melsele. Belgium

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. soI Orchard Road. #Io-oo Lane Crawford PIace. Singapore 0923

© PIONEER ELECTRONIC CORPORATION 1996

T7 IFM APR. 1996 Printed in Japan

Page 2

CLD- 2760K

1. SAFETY INFORMATION

VARO' --7*
AVATYAESSA JA SUOJALUKITUS
OHITETTAESSA OLET ALTTIINA
NAKYMATTOMALLE LASERSATEILYLLE.
ALA KAYso SATEESEEN

r-ADVERSEL.

NAFI SIKKERHEDSAFBRYDERE ER UDE AF
FUNKTION UNDGA UDSAETTELSE FOR
SYRALING

USVNLIG LASERSTRALING VED ABNING

LASER

Kuva I
Lasmsateilyn
vamltusmerkkt

" WARNING

DE VICE INCLUDES LASEFI DIODE WHICH
EMITS INVISIBLE INFRARED RADIATION
WHICH IS DANGEROUS T0 EYES THERE IS
A WARNING SIGN ACCORDING TO PICTURE
I INSIDE THE DEVICE CLOSE TO THE LASER
DIODE

IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER 0F CLASS I
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLV

IASER
Pictule 1
Warning Sign In:
|aser Iadiattnn

'- VARNING'

INSTRUCTED PERSON

OSYNLIG LASERSTRALNING NAR DENNA
DEL AR OPPNAD OCH SPARREN
AR URKOPPLAD BETRAKTA EJ STRALEN.

- LASER DIODE CHARACTERISTICS-
MAXIMUM OUTPUT POWER 5 mw
WAVELENGTH: 780 785 nm

LABEL CHECK (for TL Type)

CAUTION
INVISIBLE LASER
RADIATION WHEN OPEN.
AVOID EXPOSURE

TO BEAM

CLASS 1
LASER PRODUCT

vim-32!

PRWIOIS

Additional Laser Caution

1. The ON/OFF statuses oI the side-A/B detection switch

(TURN switch on the TNSB assy ). slidehposition detection
switches (INNER and OUTER on the PKSB assy) and
loading-status detection switches (SW l. 2 and 3 on the
LMSB assy) are detected by the microprocessor (ICIOI in
the MOTHER assyi. To permit the laser diode to oscillate. it
is required to set the side-NB detection switch tor side A
status (TRN : OFF) and the sliderposition detection
switches tor the LD ACTIVE status (INNER : OFF. OUTER :
OFF). and to set the loading-status detection switches Iortiit
neutral state I SW1 : OFF. SW2 : OFF. SW3 : 0N ). As long
as these tequiruments are not satisfied. the laser diode will
not oscillate, When the requirements are met in any way. the
laser diode can oscillate The laser diode oscillation will
continue iI pin 13 at ICBot is shorted to GND or the emitter
and collector at 0534 are shorted each other (Inuit
condition ) in MOTHER assy.

In the test mode * . the laser diode oscillates when the
microprocessor detects a PLAY signal. or when the PLAY
key is pressed (5102 ON in the FLKB assy). with the above
requirements satisfied.

2 When the cover is open. close viewing through the objective

lens with the naked eye will cause exposure to a Chas: 1
laser beam.

at : Rater to pages 45 and 46.