I have a Taramps HD3000 V2 amp and it is going into protect mode. I had to replace Q4-Q10 and IC5 because the owner fried these transistors and driver. I also found that R59 was burned so replaced that with a 4.7 ohm resistor. I replaced IC5 with the IR4427 but the amp still goes into protect and the fan runs.
I checked the speaker drivers which tested good.
Could anyone offer any insight into why this would still be failing to start? Does anyone have a version 2 schematic they would be willing to share?
Thanks for any help.
I checked the speaker drivers which tested good.
Could anyone offer any insight into why this would still be failing to start? Does anyone have a version 2 schematic they would be willing to share?
Thanks for any help.
Are the hd3000 diagrams on elektrotanya too different to be helpful?
https://elektrotanya.com/showresult?what=TARAMPS HD3000&kategoria=&kat2=all
https://elektrotanya.com/showresult?what=TARAMPS HD3000&kategoria=&kat2=all
It is fairly close but the Transistors I replaced are 180N4F6 and IC5 was a UCC27324. The main question would be what could also be causing this amp to go into protect even though I have replaced what appears to be all the failed components?
Good point and I did try that. Ther is a solder blob in the area labeled SHUT. I removed that and it still acted the same way.
Also on initial startup the current draw is about .4 amps and then after protect mode activates it drops to .1 amps.
What's the part number on the face of the microcontroller IC?
What are the output driver ICs in this amp?
What are the output driver ICs in this amp?
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PIC16F1829
IRS2092S
I also had to replace CF29 a smd ceramic capacitor which I believe is supposed to be 100 nF.
IRS2092S
I also had to replace CF29 a smd ceramic capacitor which I believe is supposed to be 100 nF.
Attachments
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Post the DC voltage on all terminals of the microcontroller (MCU). Copy and paste the following list and fill in the blanks. Since the forum now deletes blank spaces, you'll need to add one between the colon and the numbers you enter.
Pin 1:
Pin 2:
Pin 3:
Pin 4:
Pin 5:
Pin 6:
Pin 7:
Pin 8:
Pin 9:
Pin 10:
Pin 11:
Pin 12:
Pin 13:
Pin 14:
Pin 15:
Pin 16:
Pin 17:
Pin 18:
Pin 19:
Pin 20:
Pin 1:
Pin 2:
Pin 3:
Pin 4:
Pin 5:
Pin 6:
Pin 7:
Pin 8:
Pin 9:
Pin 10:
Pin 11:
Pin 12:
Pin 13:
Pin 14:
Pin 15:
Pin 16:
Pin 17:
Pin 18:
Pin 19:
Pin 20:
Pin 1: 5
Pin 2: 4.7
Pin 3: 2.5
Pin 4: 4.9
Pin 5: 0
Pin 6: 0
Pin 7: 4.6
Pin 8: 2.5
Pin 9: 0
Pin 10: 4.4
Pin 11: 0
Pin 12: 4.6
Pin 13: 0
Pin 14: 0
Pin 15: 2.4
Pin 16: 0
Pin 17: 0
Pin 18: 0
Pin 19: .3
Pin 20: 0
Pin 2: 4.7
Pin 3: 2.5
Pin 4: 4.9
Pin 5: 0
Pin 6: 0
Pin 7: 4.6
Pin 8: 2.5
Pin 9: 0
Pin 10: 4.4
Pin 11: 0
Pin 12: 4.6
Pin 13: 0
Pin 14: 0
Pin 15: 2.4
Pin 16: 0
Pin 17: 0
Pin 18: 0
Pin 19: .3
Pin 20: 0
I've requested a bit more information from another tech. If Ultra (or anyone else) has the needed information, please post.
The correct part for ic5 is ucc27324DR and it is rated for 4A . 4427 is only for 1.5A. Cant you use the ucc part ?
Can you post a photo of the CF29 that you replaced ? I need to see where it is located.
Can you post a photo of the CF29 that you replaced ? I need to see where it is located.
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