Critical Components Information; Leakage Current Measurement (For 120V Models Only); To Service Personnel - Yamaha WXA-50 Service Manual

WXA-50/WXC-50

■ TO SERVICE PERSONNEL

1. Critical Components Information

Components having special characteristics are marked ⚠ 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 ohms shunted
by 0.15 μF.
WXA-50
For U model
"CAUTION"
"FT200: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE T5A,
250V FUSE."
For C model
CAUTION
FT200: REPLACE WITH SAME TYPE T5A, 250V FUSE.
ATTENTION
FT200: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE T5A, 250V.
WXA-50/WXC-50
For U model
"CAUTION"
"F501: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1A, 250V
FUSE."
For C model
CAUTION
F501: REPLACE WITH SAME TYPE 1A, 250V FUSE.
ATTENTION
F501: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 1A, 250V.
CALIFORNIA PROPOSITION 65 WARNING
This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive
harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
WHAT SO EVER!
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.
2
WALL EQUIPMENT
OUTLET UNDER TEST
INSULATING
TABLE
• Leakage current must not exceed 0.5mA.
• Be sure to test for leakage with the AC plug in both polarities.
AC LEAKAGE
TESTER OR
EQUIVALENT