Go Back   Home > Forums > >

PPI PC21400.2
PPI PC21400.2
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
Old 6th November 2020, 11:49 AM   #11
Perry Babin is offline Perry Babin  United States
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
See attached.
Attached Images
File Type: jpg PC2350_2x.jpg (112.4 KB, 43 views)
__________________
Anyone who purchased the repair tutorial, email me (babin_perry@yahoo.com) if you want to download the latest version.
  Reply With Quote
Old 6th November 2020, 11:59 AM   #12
caraudioguy2100 is offline caraudioguy2100
diyAudio Member
 
Join Date: Aug 2010
Ok I see where leg 1 goes now in the schematic .


1 transistor is a A56 on the opposite side of the board I believe is going to the positive 15 volts

Would the transistor going to the negative 15 volts be an 06 or would it still be a 56 do you happen to know ?
  Reply With Quote
Old 6th November 2020, 12:04 PM   #13
Perry Babin is offline Perry Babin  United States
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
What's the circuit board designation of the transistor you are unsure of?
__________________
Anyone who purchased the repair tutorial, email me (babin_perry@yahoo.com) if you want to download the latest version.
  Reply With Quote
Old 6th November 2020, 12:07 PM   #14
caraudioguy2100 is offline caraudioguy2100
diyAudio Member
 
Join Date: Aug 2010
Not sure what the board location is . Since it’s burnt in that area .

The other side of the amp is pretty much the same circuit and Q60 is an A56


Here is a pic of where the transistor goes it sits in front of CR17
Attached Images
File Type: jpg CB5EF794-304C-4EDB-B970-A84C8AF82C6E.jpg (859.5 KB, 45 views)
  Reply With Quote
Old 6th November 2020, 12:12 PM   #15
Perry Babin is offline Perry Babin  United States
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
You could have looked at the other side and used the process of elimination.

Q31?
Attached Images
File Type: jpg pc2350positiveregulatorx.jpg (621.8 KB, 40 views)
__________________
Anyone who purchased the repair tutorial, email me (babin_perry@yahoo.com) if you want to download the latest version.
  Reply With Quote
Old 6th November 2020, 12:13 PM   #16
caraudioguy2100 is offline caraudioguy2100
diyAudio Member
 
Join Date: Aug 2010
Yes Q31
  Reply With Quote
Old 6th November 2020, 12:17 PM   #17
Perry Babin is offline Perry Babin  United States
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
Yes. A06.
__________________
Anyone who purchased the repair tutorial, email me (babin_perry@yahoo.com) if you want to download the latest version.
  Reply With Quote
Old 7th November 2020, 11:33 AM   #18
caraudioguy2100 is offline caraudioguy2100
diyAudio Member
 
Join Date: Aug 2010
Are the HIP4081ís the driver icís for the power supply fets or what do they control ?
  Reply With Quote
Old 7th November 2020, 12:28 PM   #19
Perry Babin is offline Perry Babin  United States
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
The drive in this PS is an H-bridge. It has 4 banks of FETs for one transformer. The 4081s drive 2 banks each.

The FETs in some if the PPI amps are intertwined so the FETs alternate from one bank to the other instead of being in groups.
__________________
Anyone who purchased the repair tutorial, email me (babin_perry@yahoo.com) if you want to download the latest version.
  Reply With Quote
Old 12th November 2020, 05:07 PM   #20
caraudioguy2100 is offline caraudioguy2100
diyAudio Member
 
Join Date: Aug 2010
Replaced the Hip4081 ic’s and on 2 banks of fets I get no drive signal .

Do these have a high failure rate also like the 4080’s ?

Or any ideas on what worse to check since I get no drive at all on 2 banks including Q1,2,3,4,5,6 and Q69,70,71,72,73,74

I have a nice square wave when the ic isn’t loaded as soon as I load the 4081 with a fet the drive goes away

Last edited by caraudioguy2100; 12th November 2020 at 05:25 PM.
  Reply With Quote

Reply


PPI PC21400.2Hide this!Advertise here!
Thread Tools

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
PPI PC21400 Jason Smith 616 Car Audio 1 22nd May 2017 01:07 PM
PC21400.2 help please dmuney Car Audio 10 7th October 2015 03:03 PM
PPI PC21400 mike49504 Car Audio 3 22nd August 2011 11:29 PM
PPI Amp Problem - PC21400 EVOlutionary Car Audio 5 5th February 2006 04:42 PM
PPI PC21400 line drivers renzo Chip Amps 0 16th February 2004 02:13 AM


New To Site? Need Help?

All times are GMT. The time now is 09:56 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki