Film-Tech Forum ARCHIVE: SRD Reader

This is topic SRD Reader in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Ram Sup (Member # 4711) on 04-14-2010, 06:54 AM:

Hi..i'm using CP650 with dolby basement reader on Strong,sinplex millenium head. We have done DRAS alignment on the basement reader.The problem is SRD is in consistent on this hall.Even new prints play well on other hall and when it plays in this hall it jumps frequenly to SR and sometimes dont read SRD at all. Please advice..

Posted by Monte L Fullmer (Member # 2797) on 04-14-2010, 07:00 PM:

Bet the system is a bit out of alignment, the LED getting tired, or the current needs to be turned up on the LED.

Posted by Louis Bornwasser (Member # 3063) on 04-14-2010, 08:47 PM:

DDRAS is almost worthless as a primary set up device. You will need a scope and any film with DD on it. Louis

Posted by Ram Sup (Member # 4711) on 04-15-2010, 04:47 PM:

I've tried realign with DRAS and also with scope but after afew days the SRD is back to 5 and F contionuously and reverts to SR.

Posted by Tony Bandiera Jr (Member # 2365) on 04-15-2010, 10:04 PM:

Ram, check all the bearings in the soundhead, lateral guide roller and sound drum. Make sure the lateral guide assembly's spring loaded flange is not stuck.

ANy worn or sticky bearings will cause you problems.

Posted by Sam D. Chavez (Member # 1841) on 04-15-2010, 11:28 PM:

DRAS can be used to see where the block is, focus # and all sorts of stuff.

It relies on a working reader otherwise it has no data to work with.

If you can, keep the laptop on for feature and check and see if the perf block is moving off the edge and then reverting.

5 Star's have a habit of letting the film crawl inward even with lateral guide flanges working properly.