How to find the size on a fuse to "Soundstandard MA3600" ?

k2teknik · 6th May 2009, 02:03 PM

Do somebody have a "Soundstandard MA3600" or a manual/schematic for that ?
I have lost the fuse and do not know the size, both in mm, A and speed.

Regards

audiomachines · 6th May 2009, 09:43 PM

hello,

15A for the rail fuses standard blow. Hope this helps.

regards,
audiomachines

k2teknik · 7th May 2009, 01:53 PM

Thanks for your reply.
15A, does it go for at 230 Volt version af the amp. ?

Any idea about size, 5*20mm or 6*25mm ?

audiomachines · 7th May 2009, 11:45 PM

hello,

15A standard blow per rail @+/-110 Vdc, if you are referring to the AC fuse (primary side of the toroid) 20mm 15A standard blow for the 220VAC version if fitted with NTC as a soft start circuit 20mm 15A slow blow if not fitted with the soft start circuit (older version), 20mm 30A for the 110VAC versions. Hope these helps.

Regards,
audiomachines

k2teknik · 8th May 2009, 01:43 PM

Quote:

Originally posted by audiomachines
if you are referring to the AC fuse (primary side of the toroid)

Yes that is the one, the one I can change from the outside of the box.

Quote:

20mm 15A standard blow for the 220VAC version if fitted with NTC as a soft start circuit 20mm.
15A slow blow if not fitted with the soft start circuit (older version).
Hope these helps.

That is just what I needed, thanks a lot.

BTW, the first 15A fuse blowde up on the first power up (The amp had been without power for more than a year)

I tryed a 10A and it stay alive and the amp was working, but apperently only in one channel.
We only had a subwoofer to test on, and it has 2 input and 2 output.
I try to swap left/right input, but only sound i left channel.

The led over the input att. lit on left channel with one cabel to speaker, and with 2 cabelt from amp to speaker both led lit.
Selector on back set up for "stereo".

Is this subwoofer to tricky to use as a test-speaker ?

/Hans

audiomachines · 8th May 2009, 02:31 PM

hans,

does the protect led stays lit on the right channel? if it does

you may need to check the rail fuses inside the amplifier, it is located on power supply board near the filter caps. Be careful the rail voltage is quite high +/-110VDC, a total of 220VDC and the filter caps can retain the charge for a quite period of time.

If all rail the fuses are ok, then you may need to check the input board for crack solder joints (where the XLR jack, TRS jack, OP Amps are mounted) and check also the slide switches, you may need to spray them with some contact cleaner.

that amplifier is rated at 600W per channel at 8 ohms, 1200W at 4 ohms, 3600W in bridge mode into 4 ohms.

regards,
audiomachines

6th May 2009, 02:03 PM	#1
k2teknik diyAudio Member Join Date: Nov 2007	How to find the size on a fuse to "Soundstandard MA3600" ? Do somebody have a "Soundstandard MA3600" or a manual/schematic for that ? I have lost the fuse and do not know the size, both in mm, A and speed. Regards

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What makes an amplifier "bright", "warm", or "neutral"?	JohnS	Solid State	51	13th December 2009 06:42 PM
My first "nice" thrift store find...	wboyd	Solid State	3	26th October 2007 07:57 PM
Where can I find NPC digital filter chip "SM5843A"	aht	Digital Source	12	18th March 2005 06:56 PM
Which stuffing material to increase "perceived" enlosure size?	Two Moons	Multi-Way	4	6th January 2002 04:27 PM
Anyone used Scan-Speak's "Flow Resistors" or "Aperiodic Vents"?	Ignite	Multi-Way	3	18th November 2001 08:42 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

6th May 2009, 09:43 PM	#2
audiomachines diyAudio Member Join Date: Dec 2005 Location: silang, cavite	hello, 15A for the rail fuses standard blow. Hope this helps. regards, audiomachines

7th May 2009, 01:53 PM	#3
k2teknik diyAudio Member Join Date: Nov 2007	Thanks for your reply. 15A, does it go for at 230 Volt version af the amp. ? Any idea about size, 520mm or 625mm ?

7th May 2009, 11:45 PM	#4
audiomachines diyAudio Member Join Date: Dec 2005 Location: silang, cavite	hello, 15A standard blow per rail @+/-110 Vdc, if you are referring to the AC fuse (primary side of the toroid) 20mm 15A standard blow for the 220VAC version if fitted with NTC as a soft start circuit 20mm 15A slow blow if not fitted with the soft start circuit (older version), 20mm 30A for the 110VAC versions. Hope these helps. Regards, audiomachines

8th May 2009, 02:31 PM	#6
audiomachines diyAudio Member Join Date: Dec 2005 Location: silang, cavite	hans, does the protect led stays lit on the right channel? if it does you may need to check the rail fuses inside the amplifier, it is located on power supply board near the filter caps. Be careful the rail voltage is quite high +/-110VDC, a total of 220VDC and the filter caps can retain the charge for a quite period of time. If all rail the fuses are ok, then you may need to check the input board for crack solder joints (where the XLR jack, TRS jack, OP Amps are mounted) and check also the slide switches, you may need to spray them with some contact cleaner. that amplifier is rated at 600W per channel at 8 ohms, 1200W at 4 ohms, 3600W in bridge mode into 4 ohms. regards, audiomachines

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)