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The reason I ask for a board number is because Rockford used the same board in multiple models. If you post the model number and I don't have anything under that model number, I won't find the relevant diagram which I may have under a different model number. As a side note, Rockford, in the past, has distributed diagrams for older amps if you email them.
See attached.
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The reason I ask for a board number is because Rockford used the same board in multiple models. If you post the model number and I don't have anything under that model number, I won't find the relevant diagram which I may have under a different model number. As a side note, Rockford, in the past, has distributed diagrams for older amps if you email them.
See attached.
Attachments
Rockford Fosgate 400.4 (2001)
Output Power at 13.8V, 20Hz ∼ 20kHz:
4 x 50 @ 4 ohms (<0.05% THD)
4 x 100 @ 2 ohms (<0.1% THD)
2 x 200 @ 4 ohms bridged (<0.1% THD)
IM Distortion (IHF): <0.05%
S/N Ratio: >100dBA
Damping Factor: >200 (4 ohms)
Fuse: External 50A
Dimensions: 13.4" x 9.9" x 2.4" (34cm x 25.2cm x 6.1cm)
Manufactured in 2001, coded G14004
Credits: Thanks to Daniel de Ferrariis
Output Power at 13.8V, 20Hz ∼ 20kHz:
4 x 50 @ 4 ohms (<0.05% THD)
4 x 100 @ 2 ohms (<0.1% THD)
2 x 200 @ 4 ohms bridged (<0.1% THD)
IM Distortion (IHF): <0.05%
S/N Ratio: >100dBA
Damping Factor: >200 (4 ohms)
Fuse: External 50A
Dimensions: 13.4" x 9.9" x 2.4" (34cm x 25.2cm x 6.1cm)
Manufactured in 2001, coded G14004
Credits: Thanks to Daniel de Ferrariis
You need to be specific, give the circuit board designation, which transistors heat up (not all will heat up).
Measuring the resistance from leg 1 to leg 2 of all of the FETs (not the regulators, not the rectifiers), do any read lower resistance than the others with the same part number?
Measuring the resistance from leg 1 to leg 2 of all of the FETs (not the regulators, not the rectifiers), do any read lower resistance than the others with the same part number?
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