Table of Contents
Advertisement
Quick Links
Universal Audio
Ramsey Electronics Model No.
Need more audio "punch" for a project? Build your own
powered speaker or juice up that audio kit with this high quality
audio amp. Maximum 20 Watt screaming output for any
application; lower gain settings with the change of a jumper.
•
Whopping 20W output at 18V.
•
Runs on 8V to 18V DC.
•
SNR: 102dB at 15W into 8Ω, 18V
95dB at 10W into 4Ω, 12V
•
THD + N: 1% at 15W into 8Ω, 18V
.2% at 10W into 4Ω, 12V
•
Square board for screw mounting, or circular "break out" board for
attaching directly to speaker magnet.
•
Line level input
•
Adjustable gain: 12dB, 18dB, 23.6dB, 32dB
•
Remote shutdown input
Amplifier
UAM2• 1
UAM2
Advertisement
Table of Contents
Related Manuals for Ramsey Electronics UAM2
Summary of Contents for Ramsey Electronics UAM2
- Page 1 Universal Audio Amplifier Ramsey Electronics Model No. UAM2 Need more audio “punch” for a project? Build your own powered speaker or juice up that audio kit with this high quality audio amp. Maximum 20 Watt screaming output for any application; lower gain settings with the change of a jumper.
- Page 2 2003 by Ramsey Electronics, Inc. 590 Fishers Station Drive, Victor, New York 14564. All rights reserved. No portion of this publication may be copied or duplicated without the written permission of Ramsey Electronics, Inc. Printed in the United States of America. UAM2• 2...
-
Page 3: Table Of Contents
KIT ASSEMBLY AND INSTRUCTION MANUAL FOR Universal Audio Amplifier TABLE OF CONTENTS Introduction to the UAM2 ........4 UAM2 Circuit Description ........4 “Learn-As-You-Build” Kit Assembly ....6 Parts List ............8 Assembly Steps ..........9 Setup and Testing ........... 11 Troubleshooting Guide ........ -
Page 4: Uam2 Circuit Description
INTRODUCTION The UAM2 is a small, high quality audio amplifier that you can plug any line level source into and get a whopping 20W out! So if you want, you can plug your portable cd player in and run your big ol’ speaker! The board is made so that you can mount it directly onto the back of a speaker or just use it as is with the mounting holes. - Page 5 They have to have big fat transistors in them that can handle lots of heat. For more info on class D amps check out the TPA3001D1 data sheet at: http://focus.ti.com/lit/ds/symlink/tpa3001d1.pdf Or a Georgia Tech site: http://users.ece.gatech.edu/~mleach/ece4435/f01/ClassD2.pdf UAM2• 5...
-
Page 6: Learn-As-You-Build" Kit Assembly
RAMSEY Learn-As-You-Build KIT ASSEMBLY There aren’t that many solder connections on the UAM2 printed circuit board, but you should still practice good soldering techniques. • Use a 25-watt soldering pencil with a clean, sharp tip. • Use only rosin-core solder intended for electronics use. - Page 7 Be careful not to apply too much glue as when the part is placed it may “squash” the glue underneath the soldering tabs of the component. Carefully place the part into position, and when the glue dries, solder the connection. UAM2• 7...
-
Page 8: Parts List
UAM2 PARTS LIST Sort and “check off” the components in the boxes provided. We do our best to pack all our kits correctly but it is possible that a mistake has occurred and we missed a part. Please note that physical descriptions of parts are for those currently being shipped. -
Page 9: Assembly Steps
UAM2 PC BOARD ASSEMBLY STEPS Let’s start with the surface mount components first, and do the big through hole parts last, except for J3, which we will install as a reference part to get our bearings. You want to be careful about how much heat you apply to the teeny parts. - Page 10 27. Install J4, the power jack, lower left of the board. Be sure to use enough solder. 28. Install J1 and J2, the two pin headers at the upper right left of the board. 29. Install, wait, uh, I guess that’s it! Now it’s testing time. UAM2• 10...
-
Page 11: Setup And Testing
The long black and red twisted pair wire is for you to connect your speaker to the UAM2. The green screw terminal block is there in case you wish to con- nect your power source there instead of at the power jack, J4. The pins are labeled “VCC”... -
Page 12: Troubleshooting Guide
Plug your 8-12V power source in, connect a speaker to J5 and J6, and feel the awesome power of your UAM2!!!!!! If everything works ok, crank the gain up to max by pulling out both jumper blocks. Hear that sound! OOOO! Feel that chip not get hot! AHHH!!! Unless it doesn’t work,... -
Page 13: Uam2 Parts Layout Diagram
UAM2 MAIN BOARD SCHEMATIC UAM2 BOARD PARTS LAYOUT DIAGRAM UAM2• 13... - Page 14 As our customers, we value your opinions, comments, and additions that you would like to see in future publications. Please submit comments or ideas to: Ramsey Electronics Inc. Attn. Hobby Kit Department 590 Fishers Station Drive Victor, NY 14564 or email us at: techsupport@ramseymail.com...
-
Page 15: Ramsey Kit Warranty
'1K ohm' resistors are actually the 'missing' 10 K parts ("Hum-m-m, I guess the 'red' band really does look orange!") Ramsey Electronics project kits are packed with pride in the USA. If you believe we packed an incorrect part or omitted a part clearly indicated in your assembly manual as supplied with the basic kit by Ramsey, please write or call us with information on the part you need and proof of kit purchase. - Page 16 TABLE OF CONTENTS Introduction to the UAM2 ........4 UAM2 Circuit Description ........4 Parts List ............8 Assembly Steps ..........9 Troubleshooting Guide ........11 UAM2 Parts Layout Diagram ......13 UAM2 Schematic ..........13 Ramsey Kit Warranty ........15...