Yamaha xm4080 xm4180 power amp service manual

Page 2

XM41WXM4080

IMPORTANT NOTICE

This manual has been provided Ior the use of authorized Yamaha Retailers and their service personnel. It has been assumed
that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and under
stood by the users, and have therefore not been restated.

WARNING : Failure to lollow appropriate service and safety procedures when servrcing this product may result in per
sonal injury, destruction ot expensive components and failure of the product to perform as specilied. For
these reasons, we advise all Yamaha product owners that all service required should be perlormed by an
authorized Yamaha Retaller or the appointed service representative.

IMPORTANT: This presentation or sale of this manual to any individual or firm does not constitute authorization Certifir
cation, recognition of any applicable technical capabilities, or establish a principalragent relationship of
any form.

The data provrded is belived to be accurate and applicable to the unrtls) indicated on the cover. The research engineering, and
servtce departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevrtable
and changes in specification are subject to change wtthout notice or obligation to retrotit. Should any discrepancy appear to
exist, please contact the distributor's Service Division.

WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yoursell to the ground bus in the unit (heavy gauge black wires connect to
this bus.)

IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck ail work betore you apply power
to the unit.

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production ol this product contains LEAD. In addition, other electrical/electronic and/or plastlc (Where
applicable) components may also contain traces of chemicals Iound by the California Health and Weltare 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 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!

It you come in contact with solder or components located lnslde the enclosure at this product, wash your hands before handling
food.

IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord

WARNING: THIS APPARATUS MUST BE EARTHED
IMPORTANT. The wires in this mains lead are coloured in accordance
with the following code:

GREENVANDVYELLOW : EARTH

BLUE : NEUTRAL

BROWN : LIVE
As the colours of the wires in the mains lead ot this apparatus may not
correspond with the coloured markings identifying the terminals in your
plug proceed as tollows:
The wire which is coloured GREENrandrYELLOW must be connected
to the terminal in the plug which IS marked by the letter E or by the
safety earth symbol (9 or colored GREEN or GREENrandrYELLOW.
The wire which )5 coloured BLUE must be connected to the terminal
which is marked With the letter N or coloured BLACK.
The wrre which is coloured BROWN must be connected to the terminal
which is marked with the letter L or coloured RED.

I WARNING

Components having special characteristics are marked & and must be replaced with parts having specification equal to those
originally installed.

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