Yamaha pw5000 power supply service manual

Page 2

PW5000

IMPORTANT NOTICE

This manual has been provided for the use ol 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 underr
stood by the users, and have therelore not been restated.

WARNING : Failure to follow appropriate service and safety procedures when serVicing this product may result in per
sonal injury, destruction of expenstve 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 perlormed 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 CerIIIlr
cation, recognition of any applicable technical capabilities, or establish a principalragent relationship of
any lorm.

The data provided is belived to be accurate and applicable to the unitls) indicated on the cover. The research engineering, and
service departments 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 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. Flecheck L work before you apply power
to the unit.

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 lound by the Calitornia Health and Weltare Agency (and possibly
other entities) to cause cancer and/or birth detects or other reproductive harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT
SO EVEFI!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose
eyes to solder/llux vapor!

If you come in contact with solder or components located inside the enclosure of 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:

GREEN-AND-YELLOW : EARTH

BLUE : NEUTRAL

BROWN : LIVE
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:
The wire which is coloured GREEN-and-YELLOW must be connected
to the terminal in the plug which is marked by the letter E or by the
safety earth symbol Q or colored GREEN or 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 termi-
nal which is marked with the letter L or coloured RED.

- This applies only to products distributed by Yamaha-Kemble Music (UK) Ltd. (3 wires)

IWARNING

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

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