This is topic Noris 342 Stereo Projector in forum 8mm Forum at 8mm Forum.
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Posted by Michael Wright (Member # 1387) on June 30, 2010, 04:25 PM:
Hi all, just bought one of these beauties. It worked well for about 10 minutes and then the sound went and hasn't come back. The sound crackled and then died, unfortunately electonics are not my strong point, so can anyone suggest what to try first or who could possibly help? Thanks MIKE
Posted by Thomas Dafnides (Member # 1851) on June 30, 2010, 09:56 PM:
I would first remove the back cover and check if there are any fuses blown.
Posted by Michael Wright (Member # 1387) on July 01, 2010, 11:25 AM:
Thanks Thomas, I've tried the fuse it's ok. The machine is running fine as a silent projector - just no sound! MIKE
Posted by David Roberts (Member # 197) on July 05, 2010, 02:00 PM:
try john white ,he sorted out my 342 recently.ive lost his contact details,but someone here will have them.
david.
Posted by peter booth (Member # 242) on July 05, 2010, 02:10 PM:
Hello Michael,
John Whites contact details are.
johnatwhitejohn7dotorangehomedotcodotuk
hope you can undersand the email ad.
Tel 020 8204 8434.
regards,
Peter.
Posted by Josef Grassmann (Member # 378) on July 08, 2010, 07:54 AM:
Hello Michael,
Noris 342 is a very nice and very quit running projector. Beside amplifier the motor control-circuit often breaks down.
Keep projector in well geased and oiled condition - of course not too much - as motor is quite strong it will hold constant speed until Motor circuit breaks down due to high current consumption. You can`t notice it during running /projection.
This happens to NORIS 342 -when not used for several years- after running 10 min to 60min in most cases.
Check that voltage selector is turned to 240V~. Do not turn selector wheel whilst connected to mains! That might destroy transformer!
Posted by Michael Wright (Member # 1387) on July 13, 2010, 02:07 AM:
Thanks Josef, I'll check the lubrcation, are there any particular points that need grease? I've checked all the internal fuses I can find (3) and they are OK. So I think there must be a component in the amplifier thats failed. MIKE
Posted by Josef Grassmann (Member # 378) on July 13, 2010, 04:48 PM:
Place 2 drops of a thin oil (sewing machine oil) at each bearing of shutter shaft. Very carefully at bearing close to drive pulley, so that no oil spills will contaminate rubber belt.
Motor bearings sometimes get blocked. Rear bearing is difficult to oil due to generator connected to motor axle.
Itīs difficult to give good advice on amp failure as many different failure are noticed.
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