paulc666
R kelly's waterbottle
A medium for beef, negativity, and hate
Posts: 167
|
Post by paulc666 on Mar 10, 2011 19:43:20 GMT -5
i have a marshall jcm2000 dsl100 head that doesnt produce any sound through a cab. all the tubes are good and theres nothing i could see wrong with the wiring. im hoping its the input, anybody have any ideas?
|
|
jameswillett
Rich Miles' phone bill
HARD TIMES COMIN YR WAY
Posts: 967
|
Post by jameswillett on Mar 10, 2011 21:12:02 GMT -5
if the input is fucked then there would still be sound. like hiss and shit. did you check the preamp tubes? of those are good i bet your output transformer is fucked and you better be ready to shell out some $$$$$$$$$$$ speaking of $$$$$$$$$$$ im selling shit that i would be willing to ship to dc. www.facebook.com/notes/james-nikos-willett/daf7a32a/10150108334546478 check it out!
|
|
zackc
Free Chipotle Day
Posts: 661
|
Post by zackc on Mar 10, 2011 21:20:11 GMT -5
it could be fuses
|
|
jameswillett
Rich Miles' phone bill
HARD TIMES COMIN YR WAY
Posts: 967
|
Post by jameswillett on Mar 11, 2011 5:43:44 GMT -5
yeah those things have like 80000 fuses in them
|
|
|
Post by coolbreeze on Mar 11, 2011 11:22:10 GMT -5
I think jameswillett is probably right about the output transformer.
It probably wouldn't be the jack unless the jack somehow became completely disconnected from the board which is unlikely. If it was a fuse, you would probably have no lights. ( i don't know about the 2K specifically, but this is generally the case )
There are a number of other things in the signal chain that, when fried, can result in no sound but the OT is a common one.
Bad news is that it will probably cost several hundred to fix but the good news is that replacing the OT on that amp should also improve the sound !
If you get it fixed, post the diagnosis here. good luck.
|
|
jameswillett
Rich Miles' phone bill
HARD TIMES COMIN YR WAY
Posts: 967
|
Post by jameswillett on Mar 11, 2011 14:27:21 GMT -5
each power tube has its own fuse (I THINK) and generally there is a mains and B+ fuse. if the mains fuse blew nothing would work at all. thats the first thing between the plug in the wall and your amp. if the b+ fuse blew (which i dont know if this amp has that; didnt see it in the schematic but that thing was drew all sorts of shitty) it would basically just forever be in standby til you replaced it (everything would light up and tubes would glow). also when you blow a fuse 9 times out of 10 its because of something kind of serious.
|
|
jameswillett
Rich Miles' phone bill
HARD TIMES COMIN YR WAY
Posts: 967
|
Post by jameswillett on Mar 11, 2011 19:46:35 GMT -5
traded some stuff for this just now SO LOUD.
|
|
paulc666
R kelly's waterbottle
A medium for beef, negativity, and hate
Posts: 167
|
Post by paulc666 on Mar 12, 2011 14:46:53 GMT -5
will definitely post diagnosis when i find out. does anybody know where the output transformer would be on these models? and would there be any scorch marks/discoloration around it if thats whats fucked up?
|
|
zackc
Free Chipotle Day
Posts: 661
|
Post by zackc on Mar 13, 2011 0:50:18 GMT -5
it looks like this
|
|
jameswillett
Rich Miles' phone bill
HARD TIMES COMIN YR WAY
Posts: 967
|
Post by jameswillett on Mar 13, 2011 19:08:18 GMT -5
there are 2 or 3 transformers in that head, and you probably wont be able to tell something is fucked up just by looking at it
|
|
paulc666
R kelly's waterbottle
A medium for beef, negativity, and hate
Posts: 167
|
Post by paulc666 on Mar 13, 2011 20:17:41 GMT -5
there are 2 or 3 transformers in that head, and you probably wont be able to tell something is fucked up just by looking at it yeah, it has 2. does anyone know where i can take it in va/dc/md to get it checked out without for cheap?
|
|
|
Post by nick on Mar 14, 2011 12:32:48 GMT -5
just scored a solid state peavy bass head for $60. moshing like i'm in outer space.
i am losing my crate guitar cab in a trade, but i am looking to replace it.
ANYONE SELLING:
a) a solid guitar cab b) a moderately priced used bass c) a bass distortion pedal similar to a big muff, rat, blue beard, etc
give me the illest deals or GTFO!
|
|
|
Post by johnpace2 on Mar 14, 2011 13:51:28 GMT -5
i have a marshall jcm2000 dsl100 head that doesnt produce any sound through a cab. all the tubes are good and theres nothing i could see wrong with the wiring. im hoping its the input, anybody have any ideas? I would take it to Pete Cage in Damascus, MD. It sounds far, but it's not that bad. He really knows Marshalls. I doubt you fried your tranny, that's hard to do unless you've really been abusing it (running it without a speaker attached for long periods, etc). pete@audiocage.com He works out of his basement and he really only does amp work on the weekend. He knows his stuff though.
|
|
|
Post by johnpace2 on Mar 14, 2011 13:52:38 GMT -5
i have a marshall jcm2000 dsl100 head that doesnt produce any sound through a cab. all the tubes are good and theres nothing i could see wrong with the wiring. im hoping its the input, anybody have any ideas? Oh, and your most likely culprit is a blown fused triggered by bad tubes. Pete will take good care of you. You won't get screwed.
|
|
paulc666
R kelly's waterbottle
A medium for beef, negativity, and hate
Posts: 167
|
Post by paulc666 on Mar 14, 2011 13:57:57 GMT -5
thanks! will e-mail tonight. does he charge for a diagnosis?
|
|
|
Post by coolbreeze on Mar 14, 2011 15:20:34 GMT -5
I've seen several recommendations for Cage's work and also heard he is fair.
I've dealt with Music Technology in VA. They're good but slow as shit and not cheap. There's also ProTech in Wheaton, MD. Haven't dealt with them lately but i think the same can be said for them. Most pros charge for diagnosis but wrap the charge into the total if you have the work done. Music Technology charges a $65 bench fee, for example.
|
|
|
Post by coolbreeze on Mar 14, 2011 15:21:15 GMT -5
and good score on a $60 bass head , Nick !
|
|
|
Post by johnpace2 on Mar 14, 2011 15:22:00 GMT -5
thanks! will e-mail tonight. does he charge for a diagnosis? He normally charges a $75 bench fee. That being said, if you showed up and there was something really simple that was wrong with it, I doubt he would charge you that entire fee. Especially if you are laid back and respectful.
|
|
rodrigo
R kelly's waterbottle
Posts: 125
|
Post by rodrigo on Mar 14, 2011 21:37:02 GMT -5
i have a marshall jcm2000 dsl100 head that doesnt produce any sound through a cab. all the tubes are good and theres nothing i could see wrong with the wiring. im hoping its the input, anybody have any ideas? what exactly happened though? like did it just died out of the blue? do you remember anything out of the ordinary the last time it worked?
|
|
paulc666
R kelly's waterbottle
A medium for beef, negativity, and hate
Posts: 167
|
Post by paulc666 on Mar 14, 2011 21:44:37 GMT -5
the last time i played it it was totally fine. my friend was using it through a cab with a blown speaker, and they said that a puff of smoke came out of the cab and it stopped producing any sound. i've tried it on 3 different cabs since then, and get nothing except the lights when i turn it on
|
|
rodrigo
R kelly's waterbottle
Posts: 125
|
Post by rodrigo on Mar 14, 2011 22:04:37 GMT -5
wow that sounds bad. i wouldn't think the smoke would come out of the cabinet.
|
|
rodrigo
R kelly's waterbottle
Posts: 125
|
Post by rodrigo on Mar 14, 2011 23:09:55 GMT -5
b) a moderately priced used bass c) a bass distortion pedal similar to a big muff, rat, blue beard, etc give me the illest deals or GTFO! i got a russian big muff for $70...is that an ok deal?
|
|
zackc
Free Chipotle Day
Posts: 661
|
Post by zackc on Mar 14, 2011 23:12:47 GMT -5
like, a vintage one or one of the reissues?
|
|
rodrigo
R kelly's waterbottle
Posts: 125
|
Post by rodrigo on Mar 14, 2011 23:19:00 GMT -5
|
|
|
Post by nick on Mar 15, 2011 9:50:03 GMT -5
I'm sure that's a good deal for the pedal itself, just more than I am personally trying to spend on a bass-distorting device. "_"
|
|
zackc
Free Chipotle Day
Posts: 661
|
Post by zackc on Mar 15, 2011 10:35:18 GMT -5
If you can find a boss HM-2 for a decent price I'd recommend scooping it up. That's the swedish death metal pedal (See: Entombed- Left Hand Path and Dismember- Like an Ever Flowing Stream). They sound awesome for bass
|
|
|
Post by johnpace2 on Mar 15, 2011 11:58:06 GMT -5
the last time i played it it was totally fine. my friend was using it through a cab with a blown speaker, and they said that a puff of smoke came out of the cab and it stopped producing any sound. i've tried it on 3 different cabs since then, and get nothing except the lights when i turn it on 2nd time this week I've heard of a cab going bat shit and starting to smoke. Before this week, I'd never heard of that happening. My money is still on bad fuses and/or tubes.
|
|
rodrigo
R kelly's waterbottle
Posts: 125
|
Post by rodrigo on Mar 15, 2011 12:17:46 GMT -5
i know how to check fuses and crap...let me know if you want me to check it out. only marshall i've taken apart is a JTM60 combo amp. Stupid handle hardware sat right over the boards and came loose onto the board after playing it loud.
|
|
|
Post by paidtheprice on Mar 15, 2011 14:23:15 GMT -5
fuses can/do produce smoke...
|
|
paulc666
R kelly's waterbottle
A medium for beef, negativity, and hate
Posts: 167
|
Post by paulc666 on Mar 15, 2011 14:50:13 GMT -5
i was told the smoke came from the cab, but i wasnt there so i dont know for sure. i e-mailed pete at audiocage and he told me he only does vintage repairs, so im gonna take it to action music in falls church, va
|
|