4
INTRODUCTION
The information presented in this manual is intended for competent technical personnel to carry out service and
product support for the Studiomaster Professional DJA series Amplifiers who is familiar to these amplifiers and
who has knowledge related to electronic theory, and is able to carry out servicing, fault finding and repair of this
amplifier series.
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 Studiomaster Professional product owners that any servicing required,
should only be performed by an authorized Studiomaster Retailer or the appointed service
representative.
- There are potentially dangerous and lethal voltages present within the power amplifier, and it is the
responsibility of the technician to exercise common safety practices to protect himself, his co-workers
and the end user.
• Turn the unit OFF and remove mains cable from mains socket during disassembly and parts
replacement.
• In particular, always exercise caution when working on an amplifier with the cover removed. Do
not leave it unattended if it is still connected to the mains supply.
• Never expose the amplifier or your test equipment to rain or moisture or an environment where it
may be splashed by water or other liquids and also never work on an amplifier with wet hands as
doing so may cause electric shock.
• Recheck all connections before power supply has been turned on.
IMPORTANT:
- The 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 units indicated in this manual. The
research, engineering, and service departments of Studiomaster Professional are continually striving to
improve Studiomaster Professional products. Modifications are therefore inevitable and specification
are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist,
please contact you Distributor’s Service Centre.
THIS DOCUMENT CONTAINS PROPRIETORY INFORMATION OF
“STUDIOMASTER PROFESSIONAL” WHICH BEING FURNISHED
ONLY FOR THE PURPOSE OF SERVICING THE IDENTIFIED
STUDIOMASTER PROFESSINAL PRODUCT BY AUTHORISED SERVICE
CENTER AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER
PURPOSE.
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