To Service Personnel - Yamaha CDR-HD1000 Service Manual

CDR-HD1000
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TO SERVICE PERSONNEL

1. Critical Components Information
Components having special characteristics are marked s
and must be replaced with parts having specifications equal
to those originally installed.
2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
Meter impedance should be equivalent to 1500 ohm shunted
by 0.15µF.
Leakage current must not exceed 0.5mA.
Be sure to test for leakage with the AC plug in both polarities.
THE COMPACT DISC RECORDER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED
SERVICE PERSONNEL.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and /or plastic
(where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency
(and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-
SON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose
eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before
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handling food.
WARNING: Laser Safety
This product contains a laser beam component. This component may emit invisible, as well as visible radiation, which may
cause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used during
servicing of the unit.
1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from the
laser pick-up unit at all times. Do not stare at the laser beam at any time.
2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual.
3) CAUTION: Use of controls, adjustments or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
Laser Emitting conditions:
1. This device is a Class IIIb laser device when the protective case is removed.
Class IIIb means
The output is such that exposure to the light from the laser, either directly or reflected by a mirror, can cause harm to the
eyes, but that there is no danger to the eyes from exposure to dispersed reflected laser light. (Generally 0.5 W or less)
2. Always wear eyeglasses designed for protection against laser light.
3. Always wear gloves.
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4. Have no reflective objects anywhere near this device.
5. Figure A shows from where in this device the laser is emitted.
6. When switching on the power to the device for the first time, always measure the laser power with a laser power meter
and check that the power is no greater than the number of Watts in the specifications.
.
7. Never look directly at the laser light while the laser is emitting light.
8. Do not allow the laser light to shine directly on your skin while the laser is emitting light.
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WALL EQUIPMENT
OUTLET UNDER TEST
INSULATING
TABLE
Q Q
3 6 7 1 3 1 5
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9 4 2 8
AC LEAKAGE
TESTER OR
EQUIVALENT
0 5 8 2 9 9 4 2 8
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9 9
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