Yamaha DPX-1000 Service Manual download (Page 2 of 141)

Manual type:Service Manual
Pages:141
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Page 2 of 141
DPX-1000
DPX-1000
2
TO SERVICE PERSONNEL
1.
Critical Components Information
Components having special characteristics are marked
Z
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 0.15
µ
F.
Leakage current must not exceed 0.5mA.
AC LEAKAGE
TESTER OR
EQUIVALENT
EQUIPMENT
UNDER TEST
INSULATING
TABLE
WALL
OUTLET
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 REASON 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 handling food.
Be sure to test for leakage with the AC plug in both
polarities.
ため
アース
アース
体に帯
する
がすため、帯
リストス
トラップを
してください。
アース
学エンジンユニット
びそ
シート)また
き、対
アースを
てください。
1M
シート)
また
リストストラップ
Grounding for electrostatic breakdown prevention
1.
Human body grounding
Use the antistatic wrist strap to discharge the static
electricity from your body.
2.
Work table grounding
Put a conductive material (sheet) or
steel sheet on
the area where the optical engine unit and its
components are placed and ground the sheet.
1M
Conductive material
(sheet) or steel sheet
Anti-static wrist strap
PREVENTION OF ELECTRO STATIC DISCHARGE
Sample
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