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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Headphone socket
I have a Marshall MG30FDX guitar amp that has a suspect headphone socket and
believe me, for the sanity of my wife and our neighbours, I _need_ the headphone socket to work! :-) I'm not into electronics at all and don't have the necessary equipment to de-solder the existing socket from the pcb and install a new one, but luckily a friend of mine does, so he's going to do it for me. As I live within walking distance of CPC, I was just going to get one from there but it's not the sort of place where you can go in and ask advice easily. It's more like Argos and Screwfix where you pick stuff from a catalogue first then go to the counter with catalogue numbers, so when I searched the website and it came back with more than a dozen results, I'm lost. I've opened the case and it physically looks like this one, but switched? unswitched? I'm assuming switched because as you plug in the headphones, it cuts out the speaker but I'd be happier if someone could confirm it. http://cpc.farnell.com/neutrik/nmj6h...ose/dp/AV11183 The schematic for the amp, if you need it, is here http://www.amparchives.com/Amp%20Arc...%20MG30DFX.pdf or http://tinyurl.com/46enmwj if the above doesn't work. TIA |
#2
Posted to uk.d-i-y
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Headphone socket
Manticore wrote:
I have a Marshall MG30FDX guitar amp that has a suspect headphone socket and believe me, for the sanity of my wife and our neighbours, I _need_ the headphone socket to work! :-) I'm not into electronics at all and don't have the necessary equipment to de-solder the existing socket from the pcb and install a new one, but luckily a friend of mine does, so he's going to do it for me. As I live within walking distance of CPC, I was just going to get one from there but it's not the sort of place where you can go in and ask advice easily. It's more like Argos and Screwfix where you pick stuff from a catalogue first then go to the counter with catalogue numbers, so when I searched the website and it came back with more than a dozen results, I'm lost. I've opened the case and it physically looks like this one, but switched? unswitched? I'm assuming switched because as you plug in the headphones, it cuts out the speaker but I'd be happier if someone could confirm it. http://cpc.farnell.com/neutrik/nmj6h...ose/dp/AV11183 The schematic for the amp, if you need it, is here http://www.amparchives.com/Amp%20Arc...%20MG30DFX.pdf or http://tinyurl.com/46enmwj if the above doesn't work. Switched is what's needed. The one you found in the catalogue will do the job. The only problem might be if it's PCB mounted, in which case you'll need to check that the spacings match. -- Tciao for Now! John. |
#3
Posted to uk.d-i-y
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Headphone socket
John Williamson wrote:
Manticore wrote: I have a Marshall MG30FDX guitar amp that has a suspect headphone socket and believe me, for the sanity of my wife and our neighbours, I _need_ the headphone socket to work! :-) I'm not into electronics at all and don't have the necessary equipment to de-solder the existing socket from the pcb and install a new one, but luckily a friend of mine does, so he's going to do it for me. As I live within walking distance of CPC, I was just going to get one from there but it's not the sort of place where you can go in and ask advice easily. It's more like Argos and Screwfix where you pick stuff from a catalogue first then go to the counter with catalogue numbers, so when I searched the website and it came back with more than a dozen results, I'm lost. I've opened the case and it physically looks like this one, but switched? unswitched? I'm assuming switched because as you plug in the headphones, it cuts out the speaker but I'd be happier if someone could confirm it. http://cpc.farnell.com/neutrik/nmj6h...ose/dp/AV11183 The schematic for the amp, if you need it, is here http://www.amparchives.com/Amp%20Arc...%20MG30DFX.pdf or http://tinyurl.com/46enmwj if the above doesn't work. Switched is what's needed. The one you found in the catalogue will do the job. The only problem might be if it's PCB mounted, in which case you'll need to check that the spacings match. Thanks very much John. Yes, it is PCB mounted so thanks for pointing out the spacings thing. |
#4
Posted to uk.d-i-y
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Headphone socket
On 13/02/2011 18:12, Manticore wrote:
I have a Marshall MG30FDX guitar amp that has a suspect headphone socket and believe me, for the sanity of my wife and our neighbours, I _need_ the headphone socket to work! :-) I'm not into electronics at all and don't have the necessary equipment to de-solder the existing socket from the pcb and install a new one, but luckily a friend of mine does, so he's going to do it for me. As I live within walking distance of CPC, I was just going to get one from there but it's not the sort of place where you can go in and ask advice easily. It's more like Argos and Screwfix where you pick stuff from a catalogue first then go to the counter with catalogue numbers, so when I searched the website and it came back with more than a dozen results, I'm lost. I've opened the case and it physically looks like this one, but switched? unswitched? I'm assuming switched because as you plug in the headphones, it cuts out the speaker but I'd be happier if someone could confirm it. http://cpc.farnell.com/neutrik/nmj6h...ose/dp/AV11183 The schematic for the amp, if you need it, is here http://www.amparchives.com/Amp%20Arc...%20MG30DFX.pdf or http://tinyurl.com/46enmwj if the above doesn't work. TIA While you are in CPC look in the book for switch cleaner and spray that down the socket and on the guitar plug, insert it and remove several times and see it this solves your problem (I am assuming crackle and hiss here.) Dave |
#5
Posted to uk.d-i-y
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Headphone socket
John Rumm wrote:
On 13/02/2011 18:12, Manticore wrote: I have a Marshall MG30FDX guitar amp that has a suspect headphone socket and believe me, for the sanity of my wife and our neighbours, I _need_ the headphone socket to work! :-) I'm not into electronics at all and don't have the necessary equipment to de-solder the existing socket from the pcb and install a new one, but luckily a friend of mine does, so he's going to do it for me. As I live within walking distance of CPC, I was just going to get one from there but it's not the sort of place where you can go in and ask advice easily. It's more like Argos and Screwfix where you pick stuff from a catalogue first then go to the counter with catalogue numbers, so when I searched the website and it came back with more than a dozen results, I'm lost. I've opened the case and it physically looks like this one, but switched? unswitched? I'm assuming switched because as you plug in the headphones, it cuts out the speaker but I'd be happier if someone could confirm it. http://cpc.farnell.com/neutrik/nmj6h...ose/dp/AV11183 Close, but that is designed for wire termination not a PCB. Hence you will probably need: http://cpc.farnell.com/cliff-electro...pcb/dp/AV10587 or possibly: http://cpc.farnell.com/cliff-electro...ono/dp/CN02461 The schematic for the amp, if you need it, is here http://www.amparchives.com/Amp%20Arc...%20MG30DFX.pdf or http://tinyurl.com/46enmwj if the above doesn't work. Ah, right, thanks very much John, the first one you linked to looks like the very beastie. |
#6
Posted to uk.d-i-y
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Headphone socket
Dave wrote:
On 13/02/2011 18:12, Manticore wrote: I have a Marshall MG30FDX guitar amp that has a suspect headphone socket and believe me, for the sanity of my wife and our neighbours, I _need_ the headphone socket to work! :-) I'm not into electronics at all and don't have the necessary equipment to de-solder the existing socket from the pcb and install a new one, but luckily a friend of mine does, so he's going to do it for me. As I live within walking distance of CPC, I was just going to get one from there but it's not the sort of place where you can go in and ask advice easily. It's more like Argos and Screwfix where you pick stuff from a catalogue first then go to the counter with catalogue numbers, so when I searched the website and it came back with more than a dozen results, I'm lost. I've opened the case and it physically looks like this one, but switched? unswitched? I'm assuming switched because as you plug in the headphones, it cuts out the speaker but I'd be happier if someone could confirm it. http://cpc.farnell.com/neutrik/nmj6h...ose/dp/AV11183 The schematic for the amp, if you need it, is here http://www.amparchives.com/Amp%20Arc...%20MG30DFX.pdf or http://tinyurl.com/46enmwj if the above doesn't work. TIA While you are in CPC look in the book for switch cleaner and spray that down the socket and on the guitar plug, insert it and remove several times and see it this solves your problem (I am assuming crackle and hiss here.) Dave Crackle and hiss it is indeed Dave so a good suggestion. I'll get a socket just in case but will try the cleaner as the easiest option first. Thanks. |
#7
Posted to uk.d-i-y
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Headphone socket
"Manticore" wrote in message ... Dave wrote: On 13/02/2011 18:12, Manticore wrote: I have a Marshall MG30FDX guitar amp that has a suspect headphone socket and believe me, for the sanity of my wife and our neighbours, I _need_ the headphone socket to work! :-) I'm not into electronics at all and don't have the necessary equipment to de-solder the existing socket from the pcb and install a new one, but luckily a friend of mine does, so he's going to do it for me. As I live within walking distance of CPC, I was just going to get one from there but it's not the sort of place where you can go in and ask advice easily. It's more like Argos and Screwfix where you pick stuff from a catalogue first then go to the counter with catalogue numbers, so when I searched the website and it came back with more than a dozen results, I'm lost. I've opened the case and it physically looks like this one, but switched? unswitched? I'm assuming switched because as you plug in the headphones, it cuts out the speaker but I'd be happier if someone could confirm it. http://cpc.farnell.com/neutrik/nmj6h...ose/dp/AV11183 The schematic for the amp, if you need it, is here http://www.amparchives.com/Amp%20Arc...%20MG30DFX.pdf or http://tinyurl.com/46enmwj if the above doesn't work. TIA While you are in CPC look in the book for switch cleaner and spray that down the socket and on the guitar plug, insert it and remove several times and see it this solves your problem (I am assuming crackle and hiss here.) Dave Crackle and hiss it is indeed Dave so a good suggestion. I'll get a socket just in case but will try the cleaner as the easiest option first. Thanks. Since it's a switched socket virtually anything (long enough and will fit in the hole) will disconnect the speaker (non-conducting of course). Is your crackle and hiss therefore in the headphones? Give it (and the jack) a spray. |
#8
Posted to uk.d-i-y
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Headphone socket
In message om, brass
monkey writes "Manticore" wrote in message ... Dave wrote: On 13/02/2011 18:12, Manticore wrote: I have a Marshall MG30FDX guitar amp that has a suspect headphone socket and believe me, for the sanity of my wife and our neighbours, I _need_ the headphone socket to work! :-) I'm not into electronics at all and don't have the necessary equipment to de-solder the existing socket from the pcb and install a new one, but luckily a friend of mine does, so he's going to do it for me. As I live within walking distance of CPC, I was just going to get one from there but it's not the sort of place where you can go in and ask advice easily. It's more like Argos and Screwfix where you pick stuff from a catalogue first then go to the counter with catalogue numbers, so when I searched the website and it came back with more than a dozen results, I'm lost. I've opened the case and it physically looks like this one, but switched? unswitched? I'm assuming switched because as you plug in the headphones, it cuts out the speaker but I'd be happier if someone could confirm it. http://cpc.farnell.com/neutrik/nmj6h...switched-full- nose/dp/AV11183 The schematic for the amp, if you need it, is here http://www.amparchives.com/Amp%20Arc...matics%20&%20L ayouts/MG%20Schematics/Marshall%20MG30DFX.pdf or http://tinyurl.com/46enmwj if the above doesn't work. TIA While you are in CPC look in the book for switch cleaner and spray that down the socket and on the guitar plug, insert it and remove several times and see it this solves your problem (I am assuming crackle and hiss here.) Dave Crackle and hiss it is indeed Dave so a good suggestion. I'll get a socket just in case but will try the cleaner as the easiest option first. Thanks. Since it's a switched socket virtually anything (long enough and will fit in the hole) will disconnect the speaker (non-conducting of course). Is your crackle and hiss therefore in the headphones? Give it (and the jack) a spray. When I was heavily into guitar amps and could still lift one, I hated that sort of socket. British amps had rigid pcb's that broke when you dropped the amp and hopeless jack sockets. American amps like Fender had cardboard-like bendy boards and sockets like http://cpc.farnell.com/jsp/level5/mo...cpc/256643.xml which had much better spring tension and any dirt could be seen and washed away. I know Neutrik are a good make, but I still hate those plastic enclosed jack sockets. I have some EchoAudio computer soundcards that use strange double decker enclosed jack sockets and they are terrible when asked to cope with the normal variations in the shape of jack plugs. -- Bill |
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