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-   -   Rockford Fosgate T5002 (http://www.diyaudio.com/forums/car-audio/219200-rockford-fosgate-t5002.html)

S Merlington 6th September 2012 07:18 PM

Rockford Fosgate T5002
 
Anyone know the values of R1042 and R1043 they sit directly behind the bias pots ?

Perry Babin 6th September 2012 10:38 PM

604 ohms.

Although it doesn't hold for all of the newer Rockford amps, in most amps, you can look at the counterparts in the other channel to find the value. In this amp, 1042 and 1043 are the same as 2042 and 2043.

S Merlington 6th September 2012 11:22 PM

I looked at the other 2 and all 4 were burnt in 2 pieces..

Left channel has very distorted output

Right channel has no output..


I replaced the resistors and they burnt up within 2 secs of power being applied..

So i guess i will have to take a look at what connects to them

Perry Babin 7th September 2012 12:17 AM

Email me if you want the schematic diagram for the amp.

babin_perry@yahoo.com

S Merlington 15th September 2012 03:54 AM

I replaced the A06 and A56 that connects to the 604 ohm resistors ..

Replace both resistors again and within 2 secs they burn up again..


Any ideas>?

Perry Babin 15th September 2012 11:27 AM

It would appear that the bias transistor is not doing its job. It could be open, missing or has a bad connection between the MEHSA board and the main board.

S Merlington 18th September 2012 01:04 PM

I fixed the broken connection between the Meshaboard and the main board..

Amp is still burning up the resistors..


So at this point should i just replace the bias transistors since both channels are burning the resistors up ?

Perry Babin 18th September 2012 01:27 PM

Did you conform, with a meter, that you have continuity between the legs of the 3-pin jumper and the bias transistor?

S Merlington 18th September 2012 01:36 PM

Yes

Perry Babin 18th September 2012 01:43 PM

Short the bases of Qx016 and Qx017. Does that stop the resistors from burning?


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