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Post by limulus on Jul 1, 2022 23:37:34 GMT -5
My XPA-3 which is a gen 1 or 2 (don't know which) powers on and all the lights turn blue, but it is not driving my speakers. This has just happened this week. Is there something I can inspect like maybe a fuse? It is way out of warranty and I would hate to lose it. I was using the pre-outs from an HK AVR-7200 and I thought maybe the problem was with the 7200. I connected it to a brand new Marantz AVR via pre-outs and still nothing.
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Post by macromicroman on Jul 2, 2022 6:53:07 GMT -5
Could be fuses. I had a similar problem with my XPA-5 gen 1 a few years ago. Lights worked but no sound. I think there are three fuses, two smaller ones and a larger one. The small ones were replaced and the system worked. I think you can see the fuses if you open the amp up. i don't remember exactly where they were.
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Post by limulus on Jul 2, 2022 14:40:39 GMT -5
Could be fuses. I had a similar problem with my XPA-5 gen 1 a few years ago. Lights worked but no sound. I think there are three fuses, two smaller ones and a larger one. The small ones were replaced and the system worked. I think you can see the fuses if you open the amp up. i don't remember exactly where they were. Thanks! I'll have a look. |
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Post by limulus on Jul 2, 2022 17:57:58 GMT -5
My S/N is 350813v011104. I'm the original owner and I know I've had it for at least 10 yrs. I have the original box and I think my receipt may be in that box. I know I have the receipt. I may have a gen 1. I joined here in 2008 which may be when I bought it. I think I may have paid $699 for this beast which makes me want to save it even more.
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Post by limulus on Jul 3, 2022 11:29:03 GMT -5
Two of the three fuses are blown. I found another thread about an XPA-5 needing fuses and they are the same fuses. So I followed the Amazon link in that thread and placed an order.
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Post by vcautokid on Jul 3, 2022 13:01:13 GMT -5
I don't remember if the XPA gen 1 and 2 uses rail fuses. Been too long, but possible. If is fuses. Hopefully that is all that it is but fuses open for a reason besides over current draw. Fingers crossed nothing serious.
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Post by leonski on Jul 4, 2022 18:57:57 GMT -5
Limulus found '2 of 3 fuses blown'.... 3 fuses is either one per module OR maybe a Plus fuse / Minus fuse on the DC rails AND a main AC power fuse? I'd be curious as to fuse values.......A pair of one value popped and a 3rd fuse which was OK of another? That'd be my guess! But maybe......  |
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Post by limulus on Jul 8, 2022 18:18:52 GMT -5
These are the fuses www.amazon.com/dp/B06VTJDY16?psc=1&ref=ppx_yo2ov_dt_b_product_details. I replaced them and it works now. However, in my rush to get the heavy amp back into the rack I damaged the center RCA jack on the back. The cable was still plugged in and I turned the am sideways and the cable was stretched to it's limit. That ripped the jack out of the back of the amp. I have to say this is a very flimsy jack. Now I don't have a center channel. |
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LCSeminole
Global Moderator 
Res firma mitescere nescit.
Posts: 20,498
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Post by LCSeminole on Jul 8, 2022 18:49:55 GMT -5
These are the fuses www.amazon.com/dp/B06VTJDY16?psc=1&ref=ppx_yo2ov_dt_b_product_details. I replaced them and it works now. However, in my rush to get the heavy amp back into the rack I damaged the center RCA jack on the back. The cable was still plugged in and I turned the am sideways and the cable was stretched to it's limit. That ripped the jack out of the back of the amp. I have to say this is a very flimsy jack. Now I don't have a center channel. Your XPA-5 has an XLR input for all 5 channels. So just order RCA to XLR cables for all five channels and you'll have your center channel back as well as a much more solid connection. Monoprice has some, link below. Oh yeah, don't forget to flip the small switch on all of the inputs to "Balanced". www.monoprice.com/product?p_id=4777 |
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Post by vcautokid on Jul 8, 2022 19:19:18 GMT -5
These are the fuses www.amazon.com/dp/B06VTJDY16?psc=1&ref=ppx_yo2ov_dt_b_product_details. I replaced them and it works now. However, in my rush to get the heavy amp back into the rack I damaged the center RCA jack on the back. The cable was still plugged in and I turned the am sideways and the cable was stretched to it's limit. That ripped the jack out of the back of the amp. I have to say this is a very flimsy jack. Now I don't have a center channel. Admittedly those RCA connectors especially on Gen 1, are not the best. They can be replaced with Tiffany like connections. They are way more robust and will not break unlike the stock original RCA connectors. |
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Post by leonski on Jul 8, 2022 19:55:01 GMT -5
These are the fuses www.amazon.com/dp/B06VTJDY16?psc=1&ref=ppx_yo2ov_dt_b_product_details. I replaced them and it works now. However, in my rush to get the heavy amp back into the rack I damaged the center RCA jack on the back. The cable was still plugged in and I turned the am sideways and the cable was stretched to it's limit. That ripped the jack out of the back of the amp. I have to say this is a very flimsy jack. Now I don't have a center channel. Your XPA-5 has an XLR input for all 5 channels. So just order RCA to XLR cables for all five channels and you'll have your center channel back as well as a much more solid connection. Monoprice has some, link below. Oh yeah, don't forget to flip the small switch on all of the inputs to "Balanced". www.monoprice.com/product?p_id=4777You don't need a 'solid' connection from which to hang the amp. Simply not abusing is good enough. In 40+ years I've yet to 'break' an RCA connector...... Balanced may provide some benefit, but maybe not. And should be louder for any given VolCon setting.....by 6db..... And if you suspend the amp by a Balanced connection, the next noise you hear will be very expensive... |
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Post by limulus on Jul 12, 2022 11:10:12 GMT -5
These are the fuses www.amazon.com/dp/B06VTJDY16?psc=1&ref=ppx_yo2ov_dt_b_product_details. I replaced them and it works now. However, in my rush to get the heavy amp back into the rack I damaged the center RCA jack on the back. The cable was still plugged in and I turned the am sideways and the cable was stretched to it's limit. That ripped the jack out of the back of the amp. I have to say this is a very flimsy jack. Now I don't have a center channel. Admittedly those RCA connectors especially on Gen 1, are not the best. They can be replaced with Tiffany like connections. They are way more robust and will not break unlike the stock original RCA connectors. Thanks. |
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Post by limulus on Jul 12, 2022 11:11:55 GMT -5
These are the fuses www.amazon.com/dp/B06VTJDY16?psc=1&ref=ppx_yo2ov_dt_b_product_details. I replaced them and it works now. However, in my rush to get the heavy amp back into the rack I damaged the center RCA jack on the back. The cable was still plugged in and I turned the am sideways and the cable was stretched to it's limit. That ripped the jack out of the back of the amp. I have to say this is a very flimsy jack. Now I don't have a center channel. Your XPA-5 has an XLR input for all 5 channels. So just order RCA to XLR cables for all five channels and you'll have your center channel back as well as a much more solid connection. Monoprice has some, link below. Oh yeah, don't forget to flip the small switch on all of the inputs to "Balanced". www.monoprice.com/product?p_id=4777Thanks. This seems to be the easiest solution. Plus it's an XPA-3 so I only need three cables $13ea from Monoprice/Amazon |
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Post by audiobill on Jul 13, 2022 4:27:47 GMT -5
And, if it's the case. playing too loud blows fuses, speakers and eardrums. Be careful!
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Post by leonski on Nov 17, 2022 20:04:14 GMT -5
I popped my Magnepan Fuses......1 1/2 amp in my MG-1 with 'only' 200 8-ohm watts....a little more at the lower panel impedance.
No problem with the 4 amp in my MG1.6qr panels.......And I would not hesitate to remove the fuse and simply jumper out that set of connections
which according to 'Maggie Lore' helps the sound out a little....no telling how many connections I could delete if I put my brain cell to it.
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