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

Hfi1500d help
Hfi1500d help
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 19th June 2019, 08:41 AM   #1
Colorado8804 is offline Colorado8804
diyAudio Member
 
Join Date: Apr 2019
Default Hfi1500d help

I'm looking at the 81013 v1.0 driver board and would like to know what the part numbers are for the ic chips that are on it.
Attached Images
File Type: jpg 1560933509008759253519.jpg (634.3 KB, 67 views)
File Type: jpg 15609335587851808417451.jpg (597.3 KB, 68 views)

Last edited by Colorado8804; 20th June 2019 at 12:02 AM.
  Reply With Quote
Old 19th June 2019, 08:48 PM   #2
Colorado8804 is offline Colorado8804
diyAudio Member
 
Join Date: Apr 2019
Quote:
Originally Posted by Colorado8804 View Post
I'm looking at the 8113 v1.0 driver board and would like to know what the part numbers are for the ic chips that are on it.
How should I place my multimeter leads on the negative voltage regulator?

I'm getting 30 volts on the op amps.
Also, can the regulators be removed to test voltage on the pads?
  Reply With Quote
Old 20th June 2019, 11:41 AM   #3
Khron is offline Khron  Finland
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
If by "regulators" you mean the SOT223-packaged devices in the top left, they're "only" high-voltage transistors (as per the P2D marking).

https://www.onsemi.com/pub/Collateral/PZTA92T1-D.PDF

"30 volts on the op amps" = between pins 4 and 8, or..?
__________________
Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans
  Reply With Quote
Old 20th June 2019, 10:01 PM   #4
Colorado8804 is offline Colorado8804
diyAudio Member
 
Join Date: Apr 2019
Quote:
Originally Posted by Khron View Post
If by "regulators" you mean the SOT223-packaged devices in the top left, they're "only" high-voltage transistors (as per the P2D marking).

https://www.onsemi.com/pub/Collateral/PZTA92T1-D.PDF

"30 volts on the op amps" = between pins 4 and 8, or..?
Oh, sorry the regulators on the main board and yes at pin 4 and 8. I believe those regulators supply the op amps, from how it looks anyway.
  Reply With Quote
Old 20th June 2019, 10:45 PM   #5
Colorado8804 is offline Colorado8804
diyAudio Member
 
Join Date: Apr 2019
I am also getting a negative 6.0mv dc on the speaker output.

When I have a tone running through, the sub will get stuck downward after higher volume like there's -dc on it.
  Reply With Quote
Old 21st June 2019, 01:12 AM   #6
Colorado8804 is offline Colorado8804
diyAudio Member
 
Join Date: Apr 2019
I also need to have the RCAs plugged in for the amp to turn on now.
  Reply With Quote
Old 23rd June 2019, 06:49 AM   #7
Colorado8804 is offline Colorado8804
diyAudio Member
 
Join Date: Apr 2019
The dc voltage increases as the volume increases at the output terminals. The woofer will pop into place and stay there, until the volume is turned back down. Why?

Last edited by Colorado8804; 23rd June 2019 at 06:51 AM.
  Reply With Quote

Reply


Hfi1500d helpHide 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
Hifonics HFi1500D output board (genericclassd7) Crazylogix Car Audio 4 16th February 2019 08:35 AM
HiFonics HFi1500D Tom7227 Car Audio 15 6th December 2013 03:16 PM
Hifonics HFi1500D airforceixi Car Audio 4 31st August 2011 10:31 PM


New To Site? Need Help?

All times are GMT. The time now is 06:50 AM.


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