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layby_lil
Joined: 13/11/2009
Posts: 141
Message Posted:
26/07/2010 22:03 | | Join or Login to Reply | Message 1 of 8 in Discussion |
| hi is anyone able to recommend a good electronics engineer one of my guitar amplifiers is playing silly buggers
and needs checking and servicing
mike |
snakes
Joined: 28/10/2008
Posts: 1512
Message Posted:
27/07/2010 08:10 | | Join or Login to Reply | Message 2 of 8 in Discussion |
| Mike !!!! what are the symptoms ?? I may be able to help regards Barry |
layby_lil
Joined: 13/11/2009
Posts: 141
Message Posted:
27/07/2010 22:22 | | Join or Login to Reply | Message 3 of 8 in Discussion |
| hi Barry, Thanks for your response I have a Marshall JCM 900 50 watt combo about 15 years old now but hasn't had that much use it makes a crackling sound now and then but the real problem is the volume fades in and out occaisionally. more noticable at higher volume levels. It has recently developed a volume "spike" when switching from the gain channel to clean. even when the strings are damped and no input signal its ok from clean to gain but peaks when going the other way.
be great if you could help I wont be able to feel confident in it when we get to gigging.
regards
mike |
snakes
Joined: 28/10/2008
Posts: 1512
Message Posted:
28/07/2010 08:53 | | Join or Login to Reply | Message 4 of 8 in Discussion |
| Mike it sounds like an intermittent volume pot or dirty gain switch ! it happens out here with the amount of dust etc ! have you pulled it to bits yet and used the amazing wd40 around those areas !! Marshalls rarely develop major probs ! regards Barry |
layby_lil
Joined: 13/11/2009
Posts: 141
Message Posted:
28/07/2010 17:16 | | Join or Login to Reply | Message 5 of 8 in Discussion |
| Hi Barry no haven't got that far yet was planning to have a go with wd 40.... but being a pessimist i always expect the worst  will have a go later and let you know tho it worked on my guitars
thanks for the tip tho
regards
mike |
MrsSnakes
Joined: 19/12/2008
Posts: 1100
Message Posted:
28/07/2010 17:24 | | Join or Login to Reply | Message 6 of 8 in Discussion |
| Snakes sprayed DW40 on my calculator as the '8' was sticky......it works fine now but I must admit I doubted it at the time |
layby_lil
Joined: 13/11/2009
Posts: 141
Message Posted:
28/07/2010 18:18 | | Join or Login to Reply | Message 7 of 8 in Discussion |
| hi helena maybe you are like me....... a optomistic pessimist )
xxxx |
MrsSnakes
Joined: 19/12/2008
Posts: 1100
Message Posted:
28/07/2010 19:18 | | Join or Login to Reply | Message 8 of 8 in Discussion |
| Yes Mike!! You have it in one!!! x |
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