CDP-M7, DHC-MD7 - Sony Audio Service Manual (repair manual). Page 4

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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.

The laser diode in the optical pick-up block may suffer electrostatic
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.

1

Refer to 3-1. to remove the case.

BU cam

groove

Note: When attaching the BU

cam, engage the Rotary
encorder switch as
shown in the figure.

A

3

Yoke bracket

2

Tray (TURN)

 Insert the screwdriver (flat-blade) into the tray
(SLIDE), tilt the screwdriver (flat-blade) in the
direction of arrow 

A

 and move the BU cam

assembly in the direction of arrow 

B

 to open

the tray (SLIDE).

A

A

B

BU cam assembly

Base unit

Rotary encorder

Note: When attaching the Base unit, insert the

section A into the groove of BU cam.