my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » HELP-Eiki 16mm question (Page 2)

This topic comprises 2 pages: 1  2

Author Topic: HELP-Eiki 16mm question Leo Enticknap Film God Posts: 7474 From: Loma Linda, CA Registered: Jul 2000 posted 01-13-2013 09:58 PM                        The Eiki line of 16mm portables was designed from the ground up to be easier to maintain and repair then its competitors - this was its main selling point. So the entire machine is designed around a series of modules - the camtank module, the power supply module, the motor module, the amplifier module etc. - which are supposed to be easy simply to remove and swap out altogether. The idea is that if you're the a/v technician in a junior school in the middle of nowhere and your projector goes bad, you can easily identify and remove the offending module altogether, return the bad one and receive it after repair (or a replacement) by mail. If your Eiki is similar to mine, the amp module sits in the base of the case. It is removed by taking off the knobs on the operating side (little screws clamp the volume knob, tone knob etc. to the shaft of the potentiometer), unplugging it from the power supply and the line to the photocell on the other side, undoing a couple of screws that secure it to the chassis and then just pulling the whole thing out. If the exciter lamp works on your machine but there is no hint of a sound whatsoever, even by swiping a card in front of it and with the volume turned up to full, then this says to me that the problem can only be one of five things. 1 - the photocell is bad (unlikely, given that it's making no noise whatsoever). 2 - the connection between the photocell and amp module is bad. 3 - the amp module has no power supply (broken power connection from the transformer module?). 4 - something inside the amp module is bad 5 - the connection between the amp module and speaker is bad. All of those connections are either jacks or molex-style plastic connectors: they're designed to be easily removable. IMHO it's definitely worth opening up the non-operating side of the machine to see if any of them have worked loose and broken.  |  IP: Logged Jonathan Wood Expert Film Handler Posts: 206 From: Oxfordshire, United kingdom Registered: Jan 2008 posted 01-14-2013 12:27 AM                     Hi Mark, sounds similar to a problem I had with a b&h projector , turned out there was a problem with the power supply but it's odd th exciter lights as I think the exciter is powered from the amp? You say u tried ext spk with line out , did u mean ext spk jack? I seem to remember Most eiki s had a dual purpose ext spk out, using a mono spk plug you got spk level and with a stereo plug u got line level on one channel,- all thru the volume pot. If the exciter still works u could try tapping from that thru a sep mic amp then a separate amp? Probably easier to swap the amp tho?  |  IP: Logged Leo Enticknap Film God Posts: 7474 From: Loma Linda, CA Registered: Jul 2000 posted 01-14-2013 09:16 AM                        quote: Jonathan Wood ...but it's odd th exciter lights as I think the exciter is powered from the amp? Not on my Eikis - the exciter is powered straight from the transformer module. That module has four outputs - 22v for the projection lamp in economy mode, 24v for the lamp on full blast (those two have a common negative), 40v for the amp module and 8v for the lacing and exciter lamps. So the power connection to the amp module, or the amp module itself, could be bad and the exciter would still light up. You can find the schematic in section 4-4 of the N series service manual in the warehouse here - page 43 of the PDF. I'm 99% sure that the power supply is essentially the same in the R and S series projectors as well. That 9-pin connector is definitely worth checking out - I have a dim memory of a problem with rust getting into one once.  |  IP: Logged Bruce McGee Phenomenal Film Handler Posts: 1776 From: Asheville, NC USA... Nowhere in Particular. Registered: Aug 1999 posted 01-16-2013 09:59 AM                     The good thing about the Eiki machines is that they were designed to be serviced, unlike most machines. I bet someone out there has an amplifier out of a junker that you can get.  |  IP: Logged Bruce Hansen Jedi Master Film Handler Posts: 847 From: Stone Mountain, GA, USA Registered: Dec 1999 posted 01-16-2013 06:58 PM                     Is there an ext. speaker jack? Normally, when you plug in an ext speaker, it cuts off the internal speaker. Try an ext. speaker. The contacts on the jack that cut off the internal speaker can become dirty, and the internal speaker will not work. Try pluging and unpluging (several times) a plug into the ext speaker jack. This can clean the contacts.  |  IP: Logged John Wilson Film God Posts: 5438 From: Sydney, Australia. Registered: Dec 1999 posted 01-17-2013 05:05 AM                     quote: Mark Newgarden No "THUMP" with credit card swipe test Maybe you've maxed out the credit card. The amp has died or perhaps you have a connection loose on the speaker terminals? You should be hearing SOMETHING even with nothing going through the projector.  |  IP: Logged Mitchell Dvoskin Phenomenal Film Handler Posts: 1869 From: West Milford, NJ, USA Registered: Jan 2001 posted 01-17-2013 04:01 PM                     And of course you check the internal amp fuse, not just the main power fuse?  |  IP: Logged

All times are Central (GMT -6:00)

This topic comprises 2 pages: 1  2

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.