Notes On Handling The Optical Pick-Up Block Or Base Unit; Model Identification; Notes On Laser Diode Emission Check - Sony HCD-RG55 Service Manual

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 break-down 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 from more than 30 cm away from the objective lens.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
SETTING AND RELEASING THE CD DISC TRAY LOCK
FUNCTION
This set has a disc tray lock function to prevent discs for
demonstration at shops from theft. While this lock function is set,
the tray will not be delivered out even when the OPEN/CLOSE
button is pressed.
Setting method:
Press the OPEN/CLOSE button while pressing the STOP button.
After a few seconds, the message "LOCKED" will appear on the
fluorescent indicator tube with the tray locked.
Releasing method:
Just as the lock is set, press the OPEN/CLOSE button while
pressing the STOP button.
After a few seconds, the message "UNLOCKED" will appear with
the lock released.

MODEL IDENTIFICATION

– BACK PANEL –
PARTS No.
MODEL
AR, E2, E51, SP models
AUS, KR, MX models
AEP, UK models
• Abbreviation
AUS : Australian model AR : Argentina model
SP : Singapore model E2 : Central and South America model
KR : Korea model E51 : Chilean and Peruvian model
MX : Mexican model
HCD-RG55/RG55S
PARTS No.
4-238-649-01
4-238-649-21
4-238-649-31
3