AVD-C70ES - Sony DVD Service Manual (repair manual). Page 5

5

The laser diode in the optical pick-up block may suffer electro-
static break-down 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.

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 emis-
sion, observe from more than 30 cm away from the objective lens.

When repairing this set, etc., connect the extension cable as the
figure shown below.

J-2501-217-A

RF board

DVD board

The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.

Releasing Procedure:
1. Press two buttons of 

[FUNCTION   ]

 and  

[        PREV]

simultaneously.

2. The message “UNLOCKED” is displayed and the tray is

unlocked.

Note: When “LOCKED” is displayed, the tray lock is not released

by turning power on/off with the 

[POWER]

 button.

.

–