Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

Sonic Impact 5066 Parts List & Modifications
Sonic Impact 5066 Parts List & Modifications
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 13th May 2007, 02:00 AM   #481
soundphreak is offline soundphreak  United States
diyAudio Member
 
Join Date: Dec 2006
You have a 3 position switch. Probably a SPDT (single pole double throw) This page describes several different types of switches and briefly how they work. My amp actually has one of these because I had it in on hand. Just use the center pole for gnd and one of the sides for + or you could connect + to both outside poles so it would come on no matter which way you switch it.

This is another page showing how switches work.
  Reply With Quote
Old 13th May 2007, 06:57 AM   #482
samvel65 is offline samvel65  United States
diyAudio Member
 
Join Date: Apr 2007
Thanks, soundphreak!
It all makes sense now.

Now, thanks to all of you guys. You inspire me and make me want to learn and create. Thanks! Before I ask away, a little about my technical background. I have none! I've never soldered anything in my life or know how to work a multimeter. However, I'm diving into this thing and learning fast. I own tube and solid state equipment, some mass-market stuff, and Mirage speakers. I've owned Klipsches and Magneplanar MMG's before and going back to Maggies soon. I just got my first T-amp and I am thrilled! I have a D-class 5.1 channel TEAC, as well as Motorola DCP501 on the way.

My SI T-amp board is one of the later ones, so I'm attempting Michael Mardis' "Caps Only" mod for now, until there's more info about that board. The chip is TA2024B, by the way. Now to the questions:

1. Wiring: I've seen that many of you use twisted wires for your PCB wiring. Is there a specific wire I must use? I was thinking about stripping the CAT5 wire and use the 24 gauge wires inside to twist mine. Will that work?

2. I read that TA2024B CAN be bridged, but you would have to run 2ohm speakers to see the benefits. Did I understand that correctly? And if so, are there really any practical applications for that (i.e. are there any 2 ohm speakers).

I'm sorry if I sound confusing, but you guys will set me straight, I hope
Thanks!
  Reply With Quote
Old 13th May 2007, 03:53 PM   #483
pekar is offline pekar  United States
diyAudio Member
 
pekar's Avatar
 
Join Date: Jan 2006
Location: house
Default DIY Solar Boombox

I've been using my Sonic Impact in a solar boombox.
I've posted basic instructions here-
http://www.instructables.com/id/EYASGDSF0FI3ADK/
  Reply With Quote
Old 13th May 2007, 05:50 PM   #484
Sbailey294 is offline Sbailey294  United States
diyAudio Member
 
Join Date: Apr 2007
Send a message via AIM to Sbailey294 Send a message via MSN to Sbailey294
Wow..cool project with the solar boom box. That was going to be project #2 for me.

I'm a total nOOb at DIY so I find myself at a hold with modifying my SI T-amp.

Any one have updated pictures for moding a rev. D of the SI board? I am having problems locating some of the little caps I am supposed to bridge and or remove. It's kind of good my Mardis edition Trend isn't here yet...that would give me a good excuse to give up ...but no I'm pressing on.
  Reply With Quote
Old 14th May 2007, 05:54 AM   #485
soundphreak is offline soundphreak  United States
diyAudio Member
 
Join Date: Dec 2006
Start reading this thread at about post 87 for info on the new board revisions. I have one of them also and just decided to upgrade the power circuit and re-box before this info was available. I have since built an AMP6 and am in the finishing stages of it, so I think I'll leave my SI t-amp the way it is and use my Auricaps on the amp 6.

Hope this helps
  Reply With Quote
Old 14th May 2007, 12:07 PM   #486
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: SW Florida
Sonic Impact 5066 Parts List & Modifications
Here are some updates on the new Sonic board.
It seems to be easier to modify than the old board. There have been some nice improvements.

Images and diagrams in the next few posts.
Attached Images
File Type: jpg overview.jpg (48.5 KB, 1188 views)
__________________
Take the Speaker Voltage Test!
  Reply With Quote
Old 14th May 2007, 12:09 PM   #487
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: SW Florida
Sonic Impact 5066 Parts List & Modifications
Here is the mod layout. Using a Panasonic EVJ pot for volume, but you may be usiing something else.
Attached Images
File Type: jpg mod-layout.2jpg.jpg (54.4 KB, 1241 views)
__________________
Take the Speaker Voltage Test!
  Reply With Quote
Old 14th May 2007, 12:11 PM   #488
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: SW Florida
Sonic Impact 5066 Parts List & Modifications
Here is a detail of where you will do the hard work.
Attached Images
File Type: jpg remove2.jpg (66.0 KB, 1121 views)
__________________
Take the Speaker Voltage Test!
  Reply With Quote
Old 14th May 2007, 12:14 PM   #489
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: SW Florida
Sonic Impact 5066 Parts List & Modifications
After surgery. Small delicate work.

To bridge the removed caps, use a tiny bit of L shaped wire. You hold onto one leg of the "L" with pliers or tweezers, cut off the extra after soldering.

EDIT: No need to remove the plug socket. It was done here just for illustration.
Attached Images
File Type: jpg jumpers-legend2.jpg (61.7 KB, 1111 views)
__________________
Take the Speaker Voltage Test!
  Reply With Quote
Old 14th May 2007, 12:18 PM   #490
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: SW Florida
Sonic Impact 5066 Parts List & Modifications
This is the new plug that connects the board to the volume pot and switch. Nice to have a plug!

Don't reverse the cable, the wires are in opposite order on each end. You will not need the last 2 wires on the right, as they come from the mini-plug and go to the pot. You will be bypassing all that, right?

You can use the red switch wires for your own switch, or just connect them together if the switch is elsewhere.
Attached Images
File Type: jpg plug-legend.jpg (24.7 KB, 945 views)
__________________
Take the Speaker Voltage Test!
  Reply With Quote

Reply


Sonic Impact 5066 Parts List & ModificationsHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


New To Site? Need Help?

All times are GMT. The time now is 11:15 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki