12-23-2012, 05:43 PM
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#61 |
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Banned
Join Date: Jul 2006
Location: Sexy Presidential Palace.
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Right cheers.
I'll replace one of the TL072s tomorrow and see if it makes a difference. If not then I'll try the other one and get back. PCB traces should be okay now, I've found my low-wattage soldering iron  I'll report back tomorrow! |
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12-26-2012, 09:05 AM
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#62 |
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Banned
Join Date: Jul 2006
Location: Sexy Presidential Palace.
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Okay, so here's where I'm at at the moment.
I couldn't take the IC out of the MG15 as I couldn't find any solder wick anywhere. Then I just so happened to get a solder vacuum for Christmas from my brother, so game was back on! I removed the good TL072 from my MG, and put it in place of IC1. That made no difference, and now I've removed IC2 but I've snapped the legs on my other TL072 so I'll have to wait for some more to arrive. In the mean time I'll be trying to get my PP-18 up and running. Seems to be something wrong with it too. Dammit! |
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12-27-2012, 08:12 AM
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#63 |
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Banned
Join Date: Jul 2006
Location: Sexy Presidential Palace.
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Turns out my footswitch doesn't work, which is why the boost is stuck on when I plug it in. Will be making a new one soon, when the parts arrive.
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12-28-2012, 10:49 AM
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#64 |
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Banned
Join Date: Jul 2006
Location: Sexy Presidential Palace.
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Okay. I've swapped IC1 and IC2.
Since putting in the new IC2 there's no sound, unless I've got the footswitch plugged in (boost on). Are you sure TL072s were the right opamp? |
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01-14-2013, 05:49 AM
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#65 | |
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Call me Gordon
Join Date: May 2011
Location: Plymouth, UK
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Quote:
I never do repairs that way  but it's a first step for testing without having to mess with soldering, if the chip has just died the parallel one picks up the slack and I know to replace it, if it doesn't make any difference then I move on with other diagnostic methods.
__________________
Epiphone Les Paul Ultra-III
Jet City JCA5212RC Archer "Nuns in Poses" Distortion Archer "Dry Ice" Overdrive EHX Deluxe Memory Boy |
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01-14-2013, 05:51 AM
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#66 | |
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Call me Gordon
Join Date: May 2011
Location: Plymouth, UK
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Quote:
TL072s are the right opamp for it btw
__________________
Epiphone Les Paul Ultra-III
Jet City JCA5212RC Archer "Nuns in Poses" Distortion Archer "Dry Ice" Overdrive EHX Deluxe Memory Boy |
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01-14-2013, 08:11 AM
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#67 | |
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Banned
Join Date: Jul 2006
Location: Sexy Presidential Palace.
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Quote:
I swapped them out for MC1458s, but I'll swap them back before I send it to you  |
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02-08-2013, 12:21 PM
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#68 |
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Call me Gordon
Join Date: May 2011
Location: Plymouth, UK
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SERIAL #12!?
This is probably the oldest surviving 5213 in the country, you lucky bastard Looks beautiful, if you'd sent the cab too you may not have gotten it back, haha
__________________
Epiphone Les Paul Ultra-III
Jet City JCA5212RC Archer "Nuns in Poses" Distortion Archer "Dry Ice" Overdrive EHX Deluxe Memory Boy |
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02-09-2013, 08:14 AM
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#69 |
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Banned
Join Date: Jul 2006
Location: Sexy Presidential Palace.
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Hahaha, thanks for taking a look man
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