CX-JD3, JAX-D3 - Sony Audio Service Manual (repair manual). Page 6

6

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.

Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.

• This mode let you lock the disc trays. When this mode is acti-

vated, the disc tray will not open when 

[   OPEN/CLOSE]

 button

or 

[DISC CHANGE]

 button is pressed. The message “LOCKED”

will be displayed in the will be displayed on the fluorescent indi-
cator tube.

Procedure:
1. Press 

[POWER]

 button to turn the set ON.

2. Select DVD function.
3. Press  

x

  button and 

[    OPEN/CLOSE]

 button simultaneously

and hold down until “LOCKED” or “UNLOCKED” displayed
on the fluorescent indicator tube (around 5 seconds).

MODEL

PART No.

Singapore and Malaysia model

4-247-798-0

[]

E model

4-247-798-1

[]

Thai model

4-247-798-3

[]

Saudi Arabia model

4-247-798-5

[]

Z

Z

PART NO.