Yamaha rx 550

Page 2

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RX-550

I TO SERVICE PERSONNEL

1.

Critical Components information.
Components having special characteristics are marked and
must be replaced with parts having specifications equal to

AC LEAKAGE

those originally installed.

2. Leakage Current Measurement (For 120V Models Only).
When service has been completed. it is imperative to verily
that all exposed conducive surlaces are property insulated
from supply circuits.

0 Meter impedance should be equivalent to 1500 ohm shunted
by 0.15pF.

o Leakage current must not exceed 0.5mA.

0 Be sure to test for leakage with the Ac plug in both
polarities.

WALL EQUIPMENT TESTER on
OUTLET UNDER TEST EQUIVALENT
INSULATING =
TABLE

0 POLARIZATION (U, c model: only)
This receiver product is equipped with a polarized altemat-
ing-current line plug (a plug having one blade wider than the
other) This plug will fit into the power outlet only one way.
This is a safely feature.

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 sol-

der fumes or expose eyes to solder/flux vapor!

It you come in contact with solder or components located inside the enclosure of this product, wash

your hands before handling food.

I REAR PANELS

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V C model
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