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Author Topic: B200s reflow  (Read 3792 times)

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rnolan

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B200s reflow
« on: Time Format »

 :thumb-up: :whoohoo!: just got my B200s back to normal (life), it had really bad (very loud) crackles in one channel. I had a tech tried to fix it twice, but no good :-( MJMP suggested I reflow (remelt/solder) all the joins, so just pulled it apart (finally) and did that. Gave it a test  :whoohoo!: all fixed. Thanks MJMP!! Next is a side by side comparison with my Carvin TS100. I did the quick test with no FX so far to check if it was working ok (and it is  :thumb-up: )
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s

MarshallJMP

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Re: B200s reflow
« Reply #1 on: Time Format »

No problem R!
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rnolan

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Re: B200s reflow
« Reply #2 on: Time Format »

Hey MJMP, well after the reflow my soldering skills have picked up  :thumb-up: (quite a bit), and today we got Mike's MP1 input jack mod done, also replaced the main vol pot. Then did his B200s vol pots, and finished with an old favourite and replaced a broken female XLR on his mic lead (Mike did most of it but I did a bit of soldering for him). All working well, has given his MP1 lots more gain/volume we think (on first listen)  (i.e. a smooth input path). The desoldering station works well but not so great for wide lugs like some of the PCB mounted input jacks, so out with the solder wick. So a successful weekend of fixing things  :whoohoo!: Thanks for all you're help and all the parts, keeping us Ozzies rocking  :banana:
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s

MarshallJMP

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Re: B200s reflow
« Reply #3 on: Time Format »

 :thumb-up:
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MikeB

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Re: B200s reflow
« Reply #4 on: Time Format »

Hmmm.  Lets not be hasty with the thumbs up.
When i got home and tried to reload my patches, it was apparent that something was not right. I got all depressed and just shut it down for the night. I'll investigate a full list of symptoms when i get home tonight.
At first glance, the display starts to flicker when in use the up/down buttons,  doesn't respond properly.
Also i had to reload the patches about 3 times and I'm still not sure it did it properly.
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I don't feel tardy!

MikeB

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Re: B200s reflow
« Reply #5 on: Time Format »

Have posted more on my MP1 issue in the troubleshooting section:
http://adadepot.com/index.php?topic=1160.msg9249#msg9249
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VoxG2

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Re: B200s reflow
« Reply #6 on: Time Format »

   Where does one have a B200S reflow done? Thanks.
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rnolan

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Re: B200s reflow
« Reply #7 on: Time Format »

I did it myself, it's actually not hard to do, just pull it apart, re-melt all the solder joins, feed in a bit more solder if they need it, B200s are not a complicated amp.  But if you are't up to using a soldering iron, any tech could do it for you, probably about 1 hours work (including pulling apart and reassemble)
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s

VoxG2

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Re: B200s reflow
« Reply #8 on: Time Format »

  Hmmmmm...ok. Thank you!!
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