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Rockford Fosgate 2500.1bdcp, questions.
Rockford Fosgate 2500.1bdcp, questions.
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Old 13th March 2019, 12:05 AM   #31
Perry Babin is offline Perry Babin  United States
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Post #20?
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Old 13th March 2019, 12:06 AM   #32
seankane is offline seankane  United States
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No you should not. This amp here has 25mv at the highest reading.
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Old 13th March 2019, 12:15 PM   #33
Perry Babin is offline Perry Babin  United States
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Is it the red or the yellow LED that's flashing briefly?

I have a T1000-1bdcp here and the problem is the protect LED is flashing. The problem appears to be associated with U1. I'll check a bit more carefully when I get into the shop tomorrow.
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Old 13th March 2019, 01:04 PM   #34
rhempz01 is offline rhempz01  United States
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Yellow thermal. It goes on then off, on then off.
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Old 14th March 2019, 04:11 AM   #35
Perry Babin is offline Perry Babin  United States
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From a problem on another model, try clamping another non-polarized capacitor in the speaker terminals (n place of a speaker).

If the amp still refuses to come on and play, you may have a shorted inductor. If it does play, you may have a bad capacitor or bad solder connections on it/them.
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Old 14th March 2019, 04:49 PM   #36
rhempz01 is offline rhempz01  United States
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The amp stops flashing into thermal protection with a cap in the terminal. I can see the 40hz but, the gain is not effective if i turn. The power supply fets are heating up, that is possibly where my current is coming from. The six closest to the terminal. Im going to pull them and test them.
The regulators all have the proper voltage on them.
6.12vdc on the rca sheilds.

Last edited by rhempz01; 14th March 2019 at 04:52 PM.
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Old 14th March 2019, 05:16 PM   #37
rhempz01 is offline rhempz01  United States
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Power supply fets are leaking. One is shorted, stuck in its off position.

Last edited by rhempz01; 14th March 2019 at 05:41 PM.
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Old 14th March 2019, 05:59 PM   #38
rhempz01 is offline rhempz01  United States
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These were loose wire strands as well as a half or a potentiometer floating around inside the amplifier. Also very little thermal paste/tension on the mosfets which caused the fets to have like a hot spot area around them.
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Old 14th March 2019, 08:03 PM   #39
rhempz01 is offline rhempz01  United States
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Without the rectifiers in circuit, no matter the mosfet used in q4-6 it instantly heats up.
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Old 14th March 2019, 08:47 PM   #40
Perry Babin is offline Perry Babin  United States
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With only ground and remote connected, what does the drive waveform look like?
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