Yamaha ms202 ii powered monitor service manual

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M8202 I]
SI# NI01001 onward

IMPORTANT NOTICE

This manual has been provided for 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 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 belived to be accurate and applicable to the unitlsl 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 you body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to
this buss.)

IMPORTANT: Turn the unit OFF during disassembly and part: replacement. Recheck all 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 lwhere
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency land possibly
other entities) to cause cancer and/or birth defects or other reproductive harm.

[S33 ElegRITLACE SOLDEFI, ELECTRICAL/ELECTRONIC 0R PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT

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.

I WARNING

Components having special characteristics are marked 4; and must be replaced with parts having specification equal
to those originally installed.

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I TO SERVICE PERSONNEL

Leakage Current Measurement [For 120V Model Only). EQUIPMENT AC LEAKAGE TESTER
When service has been completed, it is imperative that you UNDER TEST OR EQUIVALENT
verity that all exposed conductive surfaces are properly

insulated from supply circuits. (
ti D- <-
0 Meter impedance should be equivalent to 1500 ohm shunted
bV O-I5IF' WALL i:
OUTLET INSULATING TABLE 1

O Leakage current must not exceed 0,5mA.

0 Be sure to test for leakage With the AC plug in both polarities. . POLARIZATION (U C lels only)

This amplifier product is equipped with a polarized alter
noting current line plug la plus having one blade wider than
the other). This plug will fit into the power outlet only one
way, T a safety feature.