SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UPHOW TO OPEN THE DISC TABLE WHEN POWER
BLOCK OR BASE UNITSWITCH TURNS OFF
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generatedInsert a tapering driver into the aperture of the unit bottom, and
by the charged electrostatic load, etc. on clothing and the humanturn it in the direction of the arrow (to OUT direction).
body.
During repair, pay attention to electrostatic break-down and alsotable
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-tapering driver
diation exposure.
*To close the disc table, turn the tapering
driver in the reverse direction (to IN direction).
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
MODEL IDENTIFICATION
� BACK PANEL �
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the OS curve check� in OCD section adjustment� and
check that the S curve waveforms is output three times.
Notes on chip component replacementPart No.
Y Never reuse a disconnected chip component.
Y Notice that the minus side of a tantalum capacitor may be dam-ModelPart No.
aged by heat.
CDP-CE245: US model4-224-877-0s
CDP-CE245: Canadian model4-224-877-1s
Flexible Circuit Board RepairingCDP-CE245: Australian model4-224-877-2s
Y Keep the temperature of the soldering iron around 270 uC dur-
ing repairing.CDP-CE345: US model4-224-878-0s
Y Do not touch the soldering iron on the same conductor of theCDP-CE345: Canadian model4-224-878-1s
circuit board (within 3 times).CDP-CE345: AEP model4-224-878-2s
Y Be careful not to apply force on the conductor when soldering
CDP-CE345: UK model4-224-878-3s
or unsoldering.CDP-CE345: Australian model4-224-878-4s
CDP-CE345: E model4-224-878-5s
CDP-CE345: Singapore model4-224-878-6s
CDP-CE345: Saudi Arabia model4-224-878-7s
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