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

Velodyne F1800RII schematic
Velodyne F1800RII schematic
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 22nd April 2016, 06:13 PM   #1
fcel is offline fcel  United States
diyAudio Member
 
Join Date: Sep 2001
Location: LA County
Default Velodyne F1800RII schematic

I'm trying to fix my Velodyne F1800RII subwoofer where once it's switched on, it will produce a low to loud humming sound for about 20 seconds, then it will produce a loud pop, and then it'll repeat itself; the whole time the front LED color is showing green, not red.

What I have done so far:
1) I have already taken out the back plate/amp and from a visual inspection, nothing looks out of place. For example, I did not see any busted capacitors although I could not tell if the Class D amplifier is operational or not because it's located inside the aluminium shape "can".
2) I have searched this web site to see if this issue had ever been discussed but could not find any.
3) I have contacted Velodyne to see if they could send me a schematic. After a week, I was informed that they no longer have the schematic for this model.

So, I'm wondering if any member here have a schematic of Velodyne F1800RII that you could share. Worse case scenario, I'll try to fix it without a schematic; please chime in to provide some pointers. Thx.
  Reply With Quote
Old 26th April 2016, 02:30 AM   #2
fcel is offline fcel  United States
diyAudio Member
 
Join Date: Sep 2001
Location: LA County
Update: replaced a 10microfarad 50V capacitor near a voltage regulator has fixed the problem.
  Reply With Quote
Old 1st May 2017, 10:03 PM   #3
RussSeib is offline RussSeib
diyAudio Member
 
Join Date: May 2017
fcel were you ever able to find a schematic. I have been searching like mad for one with no luck. I have some caps and diodes or transistors blown inside of the amp and can't read what they are.
  Reply With Quote

Reply


Velodyne F1800RII schematicHide 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
need schematic for Velodyne F-1000-B subwoofer pagehamilton Subwoofers 2 28th August 2015 09:27 PM
Velodyne subwoofer Bablo Subwoofers 0 12th February 2013 02:20 AM
Velodyne Parts dudaindc Swap Meet 3 24th November 2012 12:09 AM
velodyne hgs10 intojazz Subwoofers 0 10th December 2010 05:52 PM
Velodyne T/S measurements logonwheeler Subwoofers 0 18th December 2005 08:07 AM


New To Site? Need Help?

All times are GMT. The time now is 07:20 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki