Yamaha HS80M Service Manual page 2

HS80M/HS50M
This manual has been provided for the use of authorized Yamaha Retailers and their ser vice 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 follow appropriate service and safety procedures when servicing this product may result in per-
sonal injury, destruction of expensive components and failure of the product to perform as specified. For
these reasons, we advise all Yamaha product owners that all service required should be performed by an
authorized Yamaha Retailer or the appointed service representative.
IMPORTANT :
This presentation or sale of this manual to any individual or firm does not constitute authorization, certifi-
cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of
any form.
The data provided is believed to be accurate and applicable to the unit (s) indicated on the cover. The research engineering, and
ser vice depar tments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable
and changes in specification are subject to change without notice or obligation to retrofit. 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 yourself 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 all work before you apply power
to the unit.
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 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.
WARNING: THIS APPARATUS MUST BE EARTHED
IMPORTANT
T H E W I R E S I N T H I S M A I N S L E A D A R E C O L O U R E D I N
ACCORDANCE WITH THE FOLLOWING CODE:
GREEN-AND-YELLOW :
BLUE :
BROWN :
As the colours of the wires in the mains lead of this apparatus may
not correspond with the coloured markings identifying the terminals in
your plug, proceed as follows:
T h e w i r e w h i c h i s c o l o u r e d G R E E N a n d Y E L L OW mu s t b e
connected to the terminal in the plug which is marked by the letter E
or by the safety earth symbol or coloured GREEN and YELLOW.
The wire which is coloured BLUE must be connected to the
terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal
which is marked with the letter L or coloured RED.
* This applies only to products distributed by YAMAHA KEMBLE
MUSIC (U.K.) LTD.
2
IMPOR TANT NOTICE
WARNING: CHEMICAL CONTENT NOTICE!
EARTH
NEUTRAL
LIVE
I
WARNING
Components having special characteristics are marked
replaced with parts having specification equal to those originally installed.
and must be