CMT-DC1K, HCD-DC1K - Sony Audio Service Manual (repair manual). Page 3

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3
HCD-DC1K
SECTION  1
SERVICING  NOTES
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.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
SERVICE POSTION
In checking the CD block, prepare jig (extension cable J-2501-
011-B).
Connect jig (extension cable J-2501-011-B)
to the MAIN board (CN101) and CD board (CN101). 
MAIN board
CD board 
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