Yamaha emx 212s service manual

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SERVICE MANUAL

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RK512 RACK MOUNT KIT (5977-72 New l~)

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SPECIFICATIONS (fisafifi) ....................................................... 3/5
PANEL LAYOUT ( /\°«I~)l«l/ 4 7") I~) .........................
CIRCUIT BOARD LAYOUT ( 12y I~ 1/47; I~ )
WIRING DIAGRAM( gmfifi )
DIMENSIONS ( Trifil) ...................
DISASSEMBLY PROCEDURES ( fi§¥$llL§)
LSI PIN DESCRIPTION (LSI fifi¥fifiagi ).
IC BLOCK DIAGRAM (IC 712w 7i)
CIRCUIT BOARDS ( >- I~ Em
INSPECTION( IRE )
PS CIRCUIT BOARD
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PARTS LIST

BLOCK & LEVEL DIAGRAM( 7 E! \y 7 & DOM/51477514)
CIRCUIT DIAGRAM( IEIflBl)

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EMX2125: 200510-67200
RK5125C: 200510-5250

.YAMAHA

HAMAMATSU, JAPAN
Copyrigh (C) Yamaha Corporation All rights resen/ed. PDF-K897 M qun 35.09

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EMX21ZS

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 understood 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 personal 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 certification, 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 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 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 a_|| 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 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.

IMPORTANT NOTICE FOR THE UNITED KINGDOM

Connecting the Plug and Cord

IMPORTANT. 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 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 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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