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Old 20th August 2006, 11:52 PM   #1
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Default Amp repair Parts

Have an amp I love and it needs some new parts. I have tried searching for them but I cannot find how to order them. It is a Soundstream Van Gogh 1600.2. Q223, Q19, Q15, Q21, TH1, R39, R33 and R19 are all toast.

Where can I order those parts and how can I make sure that I get the right ones? I need to know asap, as I have a comp coming up soon, and I cannot afford to be down one amp.


Thanks in advance..
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Old 21st August 2006, 12:08 AM   #2
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do you have a schematic for the amplifier so we can work out what those part's actually are? those numbers are just the component numbers, you need the components part numbers or values before you can order replacements.
Owen
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Old 21st August 2006, 12:27 AM   #3
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Did you check those parts to determine that they were defective or are you simply listing the ones that have soot on them?

The parts with 3 digit numbers are in the audio section. The parts with 2 digit parts are in the power supply.

If the power supply FETs failed, you must replace all of them (16 FETs total if I'm not mistaken). The resistors for all of the FETs are all the same (22 ohms 1/4 watt).

Unless the thermistor is physically damaged, it's unlikely that it's is defective.

The 2sa1303s may be damaged but you cannot know for sure unless you check them with a meter. If you measure from terminal 2 to terminal 3 you should not read anything near zero ohms. If you do, you very likely have some shorted output transistors in addition to the blown power supply FETs. You need to check all of the audio transistors (outputs and drivers) along the edge of the board as well as the ones under the board.

All of the components can be purchased from http://www.mcminone.com/ .

You need to clean the board well with acetone and a toothbrush to determine the condition of the circuit board. If there are any areas that are crunchy (for lack of a better term), the repair may be difficult. If the board is solid and there is little or no damage to the traces, then you may be able to repair it yourself.

Clean the board outside where you have good ventilation. Acetone is extremely flammable.
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Old 21st August 2006, 08:21 PM   #4
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here is the schematic, Soundstream Just emailed it to me, no problem at all. Was kinda surprised.

Actually, the file is too big for me to upload. Do either of you have an email that I can send this to?? I really appreciate the help. Never tried to fix an amp before!
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Old 21st August 2006, 11:28 PM   #5
anatech is offline anatech  Canada
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Hi beatlessinOhio,
If you haven't any experience repairing amplifiers, take this amp to a recommended shop (by Soundstream) and have them repair it. This ensures that the amp will be working quickly, and that it will keep working.

You may cause excessive damage if you attempt to repair this amp yourself. Then it cost you time, money and a new amp.

Do you know why the amplifier failed in the first place?

-Chris
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Old 22nd August 2006, 02:37 AM   #6
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My email is babin_perry@yahoo.com.

Have you cleaned it up and checked the transistors to see what's actually damaged?
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Old 22nd August 2006, 02:39 AM   #7
anatech is offline anatech  Canada
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Hi Perry,
That sounds like a good idea.
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