Rockford Fosgate P800.2 [Repair] - Page 2 - diyAudio
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Old 31st March 2009, 09:23 PM   #11
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Location: Louisiana
The 39 ohm is slightly out of tolerance. I'd replace it.
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Old 1st April 2009, 08:57 PM   #12
woutzor is offline woutzor  Netherlands
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Thanks Perry, I'll add some of those to my order form.

If there is something I need to measure or if there are some parts that need to be ordered (just in case, for spare parts), please let me know.
From the parts that 'need' to be ordered I've added a couple of extra just in case something goes wrong.
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Old 1st April 2009, 09:03 PM   #13
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R262
R263
R234
R235
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Old 2nd April 2009, 10:41 AM   #14
woutzor is offline woutzor  Netherlands
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R262 [200] = 20,3Ω
R263 [200] = 20,4Ω
R234 [200] = 20,1Ω
R235 [200] = 20,3Ω
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Old 6th April 2009, 07:37 AM   #15
fongman is offline fongman  United States
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Hi, Perry is a great guy. You have come to the right place, even if you are new or just learning, he's the man.
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Old 6th April 2009, 10:43 AM   #16
woutzor is offline woutzor  Netherlands
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You guys are very kind to share your knowledge about amplifiers and other electronics. Especially taking the time and effort of helping people all over the world.

In the Netherlands its hard to find people with knowledge about Rockford Fosgate amps because they are kinda rare.

About the repair of my P800.2... I'm kinda broke right now so I have to wait until I receive my loan/pay check later this week.. (I hope )

I plan on ordering the components at Farnell.com. Before I make the order I would appreciate it if you guys would check my order for any wrong components or if you would recommend other (better) components instead.

Untill then, I'll keep you posted
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Old 6th April 2009, 07:48 PM   #17
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Did you post a complete list of the components you intend to order?
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Old 6th April 2009, 09:36 PM   #18
woutzor is offline woutzor  Netherlands
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Whoops, Sorry but some other things had come up..

Here's the list:

Code:
Amount	Product description		Manufacturer - Article			(comment)
10x	MOSFET, N, 55V, 98A, TO-220	INTERNATIONAL RECTIFIER - IRF3205PBF	(Replacement for the original MTP75N05HD power supply transistors)
15x	MOSFET, P, -200V, -11A, TO-220	VISHAY FORMERLY INTERNATIONAL RECTIFIER - IRF9640PBF	(Output transistor)
15x	MOSFET, N, 200V, 18A, TO-220	VISHAY FORMERLY INTERNATIONAL RECTIFIER - IRF640PBF	(Output transistor)
20x	TRANSISTOR, PNP, TO-92		FAIRCHILD SEMICONDUCTOR - MPSA56_D27Z	(Drive circuit transistor)
20x	TRANSISTOR, NPN, TO-92		FAIRCHILD SEMICONDUCTOR - MPSA06	(Drive circuit transistor)
10x	TRANSISTOR, NPN, SMD, SOT-323	FAIRCHILD SEMICONDUCTOR - MMBTA06	(Replacement for Q2 and Q3)
10x	TRANSISTOR, PNP, SOT-23		ON SEMICONDUCTOR - MMBTA56LT1G		(Replacement for Q1 and Q4)
25x	RESISTOR, 0.1 OHM 3W		MULTICOMP - MC14718			(Source resistor replacement, 3W instead of 2W and a tolerance of 1%)
5x	RESISTOR, 10 OHM 3W		MULTICOMP - MC14703			(Replacing R225 and R325 with new ones, just for cosmetic purposes, also 3W and 1% tolerance)
50x	RESISTOR, RC11 0805 39R	  	PHYCOMP (YAGEO) - 232273061399 		(Replacement for R264, minimum order amount = 50 pieces)
50x	RESISTOR, RC11 0805 47R	  	PHYCOMP (YAGEO) - 232273061479 		(Replacement for R238, minimum order amount = 50 pieces)
50x	RESISTOR, 0805 51R		MULTICOMP - MC 0.1W 0805 1% 51R 	(Spare Gate resistors output, minimum order amount = 50 pieces)
50x	RESISTOR, 0805 100R		MULTICOMP - MC 0.1W 0805 1% 100R 	(Spare Source resistors output, minimum order amount = 50 pieces)
10x	DIODE, POWER RECTIFIER		SPC TECHNOLOGY - 1N4003			(Replacemet diode for shorted diode D3, also going to replace D2)
1x	CAPACITOR, 4700UF, 80V		NICHICON - LLS1K472MELC			(Replacing C25, it has a dent/scratch on top)
Any insight, tips or recommendations for other parts etc are welcome. Thanks
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Old 6th April 2009, 10:29 PM   #19
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The damage to the capacitor appears to be insignificant. I think it would be better to have 4 matched caps. I'd leave them as they are.

The MMBTA06 is listed as an SOT-323. It should be an SOT-23. It's likely that it's an error in their database but you should confirm before ordering.
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Old 7th April 2009, 10:47 AM   #20
woutzor is offline woutzor  Netherlands
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Thanks for checking my order list. I'll remove the capacitor from the list.

I also noticed the SOT-323. I'll order this part instead:
ON SEMICONDUCTOR - MMBTA06LT1G - TRANSISTOR, NPN, SOT-23
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