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

» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » "Click" in Analogue Sound

Author Topic: "Click" in Analogue Sound Ian Bailey Master Film Handler Posts: 317 From: Nambucca Heads, Australia Registered: Jun 2003 posted 01-07-2007 05:12 AM                     Just developed a "Click" in the analogue sound that appears to be only coming out of the centre speaker. The "Click" does not happen in a uniform manner ie exactly every 2 seconds......the time between clicks seems to vary. Can't seem to hear it in the booth monitor but can hear it in the auditorium. Tried running a show in analogue and covering the red led.....sound stopped but "Click" was still there. "Click" does not seem to be there running DTS. Equipment: JSX1000 Monee with Jax-Light.......it doesn't get any better than this!!! Cheers Ian  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 01-07-2007 06:05 AM                     Disconnect the wires to the "solar cell" (jaxlite) from the JSX1000. Is the click still there? Also try stopping the motor and listen for it. I've had that sort of interference caused by the projector motor.  |  IP: Logged Ian Bailey Master Film Handler Posts: 317 From: Nambucca Heads, Australia Registered: Jun 2003 posted 01-07-2007 07:50 AM                     Thanks for the information Brad. I'm 3ookm's away from this problem so it will take a while to try your suggestions. Cheers Ian  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 01-07-2007 08:13 AM                     Microswitches on platters are also noted for introducing clicks into the system. Another source is the solar cell itself. During dry months, the plastic of the film will build up a charge and then discharge to the solar cell itself. Spacing the cell a little further away can also cure this problem at the expense of a little crosstalk. Steve  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 01-07-2007 08:47 AM                        Might be a good time to "leverage" replacing the Jaxlight! The reduced output makes other problems larger. Louis  |  IP: Logged Ian Bailey Master Film Handler Posts: 317 From: Nambucca Heads, Australia Registered: Jun 2003 posted 01-07-2007 10:20 PM                     Steve it's a Speco platter.....I don't think the clicking would be coming from that.The only adjustment I can see on the Jaxlight is the horizontal position of the light....can't see how the solar cell's(receiver) position can be changed! Lois I'm not a big fan of Jaxlights.......would love to replace it......it all comes down to money!! Cheers Ian  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-08-2007 08:19 AM                     The grounding of the jax light often is the source of them being noisy you may have to try some creative grounding techniques It also could be getting into the mains of the preamp for the jax light  |  IP: Logged Ian Bailey Master Film Handler Posts: 317 From: Nambucca Heads, Australia Registered: Jun 2003 posted 01-10-2007 08:18 PM                     Hi Guys Just thought I'd let you know the result to this problem. The "clicking" was actually coming from the Format card in the JSX1000.This card has been giving me intermittent problems for a while......Digital i/p dropping out(intm.).....then External i/p dropping out......then analogue i/p dropping out(intm.)........then the clicking noise in the centre channel which was a permanent problem. I installed another Format card with the latest REV. level and all seems good at the moment. Cheers Ian  |  IP: Logged

All times are Central (GMT -6:00)

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.