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Author
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Topic: Sound problem on an ST1200
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Sam James
Expert Film Handler
Posts: 114
From: London
Registered: Oct 2005
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posted December 31, 2005 12:41 PM
The internal speaker on my machine is fine. I also have an external one which again is fine, but to be fair the sound's not brilliant. So, in oreder to get the ful benefit of the Elmo's stereo capability, I've connected the right and left channel (1 and 2) line out sockets to an external amplifier. There is some sound with the amp turned up high but obviously there is an accompanying loud hum at this level.
As suggested by John Clancy in an earlier post, I went to Maplin's and bought a pre-amp for £14.99 which should boost the line out signal to the amp. Now, the volume of the amp doesn't need to be so high, but the sound is very distorted.
The real problem however, is that with or without the pre-amo, there seems to be no signal from the second line out socket. In other words, no matter which way I swop the cables, there is no sound from the right channel/speaker. Swop the speakers, same problem. The film I've been running is Derann's stereo Jungle Book. The sound on the projector is set to magnetic. I've just cleaned the heads with alcohol and the switch at the back next to the line out sockets has been set at 1, 1&2 and 2. Still nothing. I've even tried hitting the record switch (without the film in) and wiggling the jacks about in case there was any gunk built up inside. Still nil.
Once again, the machine is reading the film and playing the sound, but it's frustrating that I can't get it to redirect properly throught the amp. Can anyone help?
By the way, no pressure but "Uncle" Sam is showing said movie to nine pre-teen inhabitants of Stoke Newington tomorrow (Sunday) at 4pm. If they don't linch me for cocking up the sound, their parents will!
Happy New Year.
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Sam James
Expert Film Handler
Posts: 114
From: London
Registered: Oct 2005
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posted December 31, 2005 02:24 PM
Blimey (or, as the peerless Sid James said in "Carry on Cleo", Blimus!) I've been addressed by a real life moderator!
Hello Doug,
Further to your question, I went back, poked my headphones in holes and here are the results:-
As any fool knows, there are two line out sockets numbered 1 and 2 on the top rear of the machine. Next to this is a switch which can be set to 1, 1&2 or 2. Below these is a headphone/monitoring socket.
Switch set to 1 :
- headphone sound and projector sound when plugged into socket 1.
- no headphone sound but projector sound into socket 2.
- headphone sound, no projector sound, plugged into headphone socket
Switch set to 1&2 :
- all as above
Switch set to 2 :
- headphone sound but no projector sound when plugged into socket 1
- no sound at all when plugged into socket 2
- headphone sound but no projector sound when plugged into headphone socket.
All the headphone sound came through the left earpiece, none from the right.
Confused? You will be, in next week's episode of............
Sam
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