|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
  |
|
|
|
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 |
 |
|
|
Thread Tools | Search this Thread |
5th March 2011, 10:52 PM
|
#1 |
|
diyAudio Member
Join Date: Oct 2010
|
PUNCH 4060X
i got this amp with 1 blown channel and a blown power supply. i got the power supply repaired and i'm pretty sure i have replaced all the defective components in the output circuit. the problem is that i have no audio in any of the channels, i noticed that my pre amp ic's (LM833) are getting +/- 20-24v. if i'm correct that is too high. would this have something to do with the TL072?
|
|
|
6th March 2011, 01:00 AM
|
#2 |
|
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
|
That's a bit higher than I'd expect.
Does this amp have voltage regulators? What's the PC# on the board (i.e. PC-0282)?
__________________
Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links |
|
|
|
6th March 2011, 01:13 AM
|
#4 |
|
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
|
Photo of the board?
__________________
Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links |
|
|
|
6th March 2011, 01:44 AM
|
#6 |
|
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
|
What's the DC voltage rating on the rail caps?
__________________
Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links |
|
|
|
6th March 2011, 01:55 AM
|
#8 |
|
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
|
There may be a problem with the voltage regulation for the rails (if it has regulation). Try to get a schematic diagram from Rockford Monday.
__________________
Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links |
|
|
|
6th March 2011, 02:57 AM
|
#10 |
|
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
|
What's the DC voltage across the B+ and ground terminals?
__________________
Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links |
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| punch 800.4 | timwebb | Car Audio | 3 | 16th October 2010 11:44 PM |
| rockford 4060x problem.. | marko | Car Audio | 5 | 17th March 2009 06:52 PM |
| punch 100dsm help | ben04srt | Car Audio | 12 | 1st February 2009 04:29 PM |
| Selling a punch 250a2, old punch 75, and ppi epx 205 on EBAY | ppia600 | Swap Meet | 0 | 23rd February 2008 01:17 AM |
| My experience: the cheap punch set VS Greenlee punch | vax9000 | Tubes / Valves | 5 | 21st July 2006 07:52 PM |
| New To Site? | Need Help? |
| Page generated in 0.09118 seconds (77.16% PHP - 22.84% MySQL) with 11 queries |
