Sony HCD-H501 - Servicing Notes and Precautions; Handling Optical Pick-up and Laser Diode; Repair Tools and Procedures

SECTION 1
SERVICING NOTES
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,
observe more than 25cm away form the objective lens.
CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the CD lid, use
Chuck Plate Jig.
© Code number of Chuck Plate Jig : X-4918-255-1
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Index
to
Parts
and
ee
Controls
Tuner/Ampiifier
Refer to the pages indicated in parentheses
for how to use the controls.
Controls with an asterisk have indicators
on themselves.
Front Panel
DISPLAY button
Preset equalizer setting buttons*
KARAOKE PON/MPX button
1] SYSTEM POWER ON/STAND BY
switch
(2)cD tray
& OPEN / CLOSE button
M (stop) button
5] Dil (play and pause) button
[6] CD operating buttons
CONTINUE button
SHUFFLE button
PROGRAM button
DBFB button
VOLUME control
CLOCK SET button
FUNCTION button
PHONES jack
MIX MIC jack
Tuner operating buttons
TUNING MODE button
MONO button
fi] ENTER/NEXT button
[f TUNER MEMORY button
[13] -144/>>4 + buttons
14 TUNER/BAND button
BeBseeseNe