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HCD-M70
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
– Rear Panel –
Part No.
Model Name
AEP and UK models
US and Canadian models
Singapore model
Mexican model
Australian model
Korean model
Thai model
4
SECTION 1
SERVICING NOTES
SERVICE POSITION
In checking the CD block, prepare jig (extension cable J-2501-
011-B: 1.25 mm Pitch, 19 cores, Length 300 mm).
Connect jig (extension cable J-2501-011-B)
to the control board (CN805) and CD board (CN101).
Part No.
4-238-716-0
In checking the tape deck section, prepare jig (extension cable J-
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2501-167-A: 1.25 mm Pitch, 17 cores, Length 300 mm).
4-238-888-0
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4-238-889-0
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4-239-812-0
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4-240-890-0
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4-240-891-0
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4-240-892-0
[]
Connect jig (extension cable J-2501-167-A)
to the main board (CN301) and TC board (CN301).
control board (CN805)
CD board (CN101)
TC board (CN301)
Any box to put.
main board (CN301)
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