Sony CDP-715 - Servicing Notes; Handling the Optical Pick-up Block; Laser Diode Emission Check Procedure; Laser Diode & Focus Search Operation Check

MODEL IDENTIFICATION
— Specification Label —
CDP-715
=
MODEL NO. 7
SONY.
COMPACT DISC PLAYER
SERIAL NO,
~ MADE IN JAPAN
MADE IN FRANCE
AEP,German model : AC220—230V, 50/60Hz, 13W
UK model : AC240V, 50/60Hz, 13W
E model : AC 110 — 120, 220 — 240V,
50/60Hz 13W
SECTION 1
SERVICING NOTE
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
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
repain 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 emission, observe from more than 30 cm away from the
objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
1. Make POWER switch on with no disc inserted and disc
table closed.
2. Confirm that the following operation is performed while
observing the objective lens.
Front Panel side
@ Confirm that laser beam is spread.
@ Up and down motion of the objective lens. (3 times)