XL-HF401PH (serv.man5). (European)Supplement - Sharp Audio Service Manual (repair manual). Page 9

XL-HF401PH

4 – 1

The CD section may not operate when the objective lens of the optical pickup is dirty. Clean the objective lens, and
check the playback operation. When this section does not operate even after the above step is taken, check the
following items.

Remove the cabinet and follow the troubleshooting instructions.

"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the
laser pickup lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned
below."

Turn the power off.

Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.

Do not touch the lens with the bare hand. 

1) Focus-HF system check

2) Tracking system check

3) Spin system check

4) PLL system check

Parts code

1.

CD optical pickup Lens cleaner disc

UDSKA0004AFZZ

HOW TO USE

CAUTION

Cleaning fluid

Cleaner disc

Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the

brush on the CD cleaner disc which has the mark next to it.

Place the CD cleaner disc onto the CD disc tray with the brush side down, then

press the play button.

You will hear music for about 20 seconds and the CD player will automatically stop.

If it still play continuously, press the stop button.

1.

2.

3.

The CD lens cleaner should be effective for 30-50 operations, however if the

brushes become worn out earlier then please replace the cleaner disc.

If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft

cloth.

Do not drink the cleaner fluid or allow it contact with the eyes. In the event of this

happening then drink and / or rinse with clean water and seek medical advice.

The CD cleaner disc must not be used on car CD players or on computer CD-ROM

drives.

All rights reserved. Unauthorized duplicating, broadcasting and renting this product

is prohibited by law.