Sony cdx l 400 x service manual

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CDX-L400X

SERVICE NOTES TEST DISCS
This set can playback CD-R and CD-ROM discs. The following
test discs should be used to check the capability:

c LASS 1 CD-R test disc TCD-ROSZLMT (Part No. J-2501-063-1)

CD-RW test disc TCD-WOSZL (Part No. J-2501-063-2)
LASER PRODUCT

This label is located on the bottom of the chassis.

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN
DO NOT STARE INTO BEAM OR

VIEW DIRECTLY WITH OPTICAL INSTRUMENTS

This label is located on the drive units internal chassis.

When replacing the chassis (T.U) of mechanism deck which have
the CAUTION LABEL attached, please be sure to put a new
LABEL (OP CAUTION) (3-223-913-01) to the chassis (TU).

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.

The flexible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.

Notes on Chip Component Replacement

- Never reuse a disconnected chip component.

0 Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.

SAFETY-RELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED BY MARK A OR DOTTED LINE
WITH MARK A ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

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