Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Join
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Help
Wiring, Electrical & Installation
amp repair
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Snowboard_Jedi" data-source="post: 8056004" data-attributes="member: 652366"><p>I have a blown mtx 500 watt d class amp, and my friend has an expensive rockford 500 watt 2 channel amp. I tried repairing both of these amps, replacing all 8 transistors in my d class, 7 of which were blown, and replacing 4 transistors in the rockford amp, all 4 of those being melted and obviously blown. Well, I wasn't expecting to make the amps work, but I was hoping, but my hopes were dashed, haha. My D class amp didn't turn on the LED's, so it's still a ways from being repaired. My friend's rockford amp tried to turn on, but didn't work properly, it was just pulsing the speaker a lil bit, then I noticed a lil smoke coming from the 4 power supply transistors I had replaced, so i quickly unhooked the power. I guess the power supply on the rockford amp is blown and is overpowering those transistors causing them to smoke and fry? Do I need to replace the large capacitors? I want to unsolder the large capacitors, and test them to see if they're any good. I figured out how to test transistors, which was a cool skill to learn, and that is how i figured out that 7 of the 8 transistors in my D class amp were blown. But I still got a lot to learn.</p><p></p><p>years ago i had dreams of aquiring an electrical engineering degree so that I could make a career designing amplifiers for car audio and home theatre manufacturing companies. Well I dropped out of college and am pursuing other career dreams. But I still want to learn how to repair these far too easy to break amplifiers.</p></blockquote><p></p>
[QUOTE="Snowboard_Jedi, post: 8056004, member: 652366"] I have a blown mtx 500 watt d class amp, and my friend has an expensive rockford 500 watt 2 channel amp. I tried repairing both of these amps, replacing all 8 transistors in my d class, 7 of which were blown, and replacing 4 transistors in the rockford amp, all 4 of those being melted and obviously blown. Well, I wasn't expecting to make the amps work, but I was hoping, but my hopes were dashed, haha. My D class amp didn't turn on the LED's, so it's still a ways from being repaired. My friend's rockford amp tried to turn on, but didn't work properly, it was just pulsing the speaker a lil bit, then I noticed a lil smoke coming from the 4 power supply transistors I had replaced, so i quickly unhooked the power. I guess the power supply on the rockford amp is blown and is overpowering those transistors causing them to smoke and fry? Do I need to replace the large capacitors? I want to unsolder the large capacitors, and test them to see if they're any good. I figured out how to test transistors, which was a cool skill to learn, and that is how i figured out that 7 of the 8 transistors in my D class amp were blown. But I still got a lot to learn. years ago i had dreams of aquiring an electrical engineering degree so that I could make a career designing amplifiers for car audio and home theatre manufacturing companies. Well I dropped out of college and am pursuing other career dreams. But I still want to learn how to repair these far too easy to break amplifiers. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Help
Wiring, Electrical & Installation
amp repair
Top
Menu
Home
Refresh