Servicing Notes - Sony SCD-XB940 Service Manual

Ver 1.1
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
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.
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 emis-
sion, observe from more than 30 cm away from the objective lens.
MODEL IDENTIFICATION
– Back Panel –
Model
AEP
UK
ABOUT THE "E01" DISPLAY
"E01" is displayed when the above occurs in communication with
a system controller (IC605) and a display controller (IC203) at the
time of starting.
In this case, please check soldering, disconnection, etc. of each
IC.
4
SECTION 1

SERVICING NOTES

Part No.
Part No.
4-227-711-0s
4-227-711-1s
HOW TO OPEN THE TRAY WHEN POWER SWITCH
TURNS OFF
There are two different methods to open the tray.
• Method-1
Insert a screw driver (3) into the aperture of the unit bottom, and
turn it in the direction of the arrow (to OUT direction).
tray
* To close the disc table, turn the screw driver (3)
in the reverse direction (to IN direction).
• Method-2
tray
B
1 Insert a screw driver (3) into the aperture of the unit bottom,
and move the cam (CDM55) in the direction of arrow A.
2 Pull the tray in the direction of arrow B.
screw driver (3)
cam (CDM55)
A
screw driver (3)