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Author Topic: error cat 862 Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 07-11-2015 03:07 PM                     absolutely, it's a 'non-issue' but it's there.  |  IP: Logged Ian Freer Expert Film Handler Posts: 135 From: Wellington, New Zealand Registered: Oct 2003 posted 07-11-2015 07:53 PM                     Marco, Steve, What is the 'white screen of death' and can it's cause be explained? I think I experienced this yesterday for the first time... I was at a site doing an annual check their IR headsets so the projectionist made an SPL of trailers to play in all the screens as I walked from room to room. When I got to cinema 1, the audio was playing but the screen was completely white as if a white test pattern was being displayed from the projector. This screen is DSS200 with dual Barco 32B's. We were only playing 2D so only one projector was on. Turned on second projector and it also displayed full white. Rebooted both projectors and the server and all was OK. In running this site for many years this was the first time the projectionist had ever experienced this issue. Is it a sign the he needs to be worried about further things going wrong or is it just "one of those things" a server is occasionally going to do (at least in the software version he's running (I think it was 4.8.2.xxx, definitely not the newest version out there )... Cheers, Ian  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 07-11-2015 08:00 PM                     The White screen is caused by the CAT862 and generally it happens AT boot up...not mid day. The only way to restore operation is to reboot the CAT862 (power cycle the server). This has been addressed in two versions of Dolby software...4.8.5.21 and 4.7.4.1 (4.7.4.1 is for sites that have a mix of DSS100s and DSS200s and need a uniform version so all servers may operate on a single DOLBY TMS. Since the DSS100 is limited to 4.7.3.3, they needed to fix the DSS200's CAT862 for those sites). Yes, it will appear that you have a white test pattern that you can't get rid of. Rebooting the projector will have zero effect. Just reboot the server. I suggest updating to one of the aforementioned softwares and put the problem to rest. System 4.8.5.21 is a good version and quite stable. I have not tried 4.7.4.1 so I cannot comment on it.  |  IP: Logged David J Hilsgen Expert Film Handler Posts: 192 From: SAUK RAPIDS,MN . USA Registered: Aug 2004 posted 07-12-2015 04:45 AM                     I was at the long d.i the last couple nights, were the projector & server with the problems are located, of course no problem when i was there. but i looked to verify #s the projector does have the latest firmware 2.11 & bios # was the 1.02 reason i mention the projector is in another thread i was looking for why it was giving a 140 DLP comm r code. but the server is 4.7.2.1 and the projector does have a gore board.one thing i did do is to take a network switch out of the loop between projector & server it was for connecting extra accessories so we shall see how it runs the next couple of weekends so should i still upgrade the dolby software. and also any opinions about using cat 7 shield cable right now i have cat 6 maybe e.m.i is coming into play im running a 6 k bulb & the power supply is setting next to the server. & thanks so far to every body for there advice.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 07-12-2015 07:04 AM                     quote: Steve Guttag 4.7.4.1 is for sites that have a mix of DSS100s and DSS200s and need a uniform version so all servers may operate on a single DOLBY TMS. Since the DSS100 is limited to 4.7.3.3, they needed to fix the DSS200's CAT862 for those sites I was told 4.7.4-1 was just a beta. Is 4.7.4 DCI for the DSP100?  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 07-12-2015 12:26 PM                     4.7.4 is release. I don't think there are ANY changes for the DSS100 systems, I don't know if it will load on the DSS100 or not...the recommendation was to keep 4.7.3.3 or that may have meant that it was just a waste of time to change the software for the DSS100s. I have no systems where 4.7.4 pertains so it is of no concern to me.  |  IP: Logged Leo Enticknap Film God Posts: 7474 From: Loma Linda, CA Registered: Jul 2000 posted 07-12-2015 12:41 PM                        It would appear that Miller's law (that every new Dolby software update introduces at least one new bug) is alive and well as far as 4.8.5.21 is concerned. I installed it in our cat862/NC2500S house yesterday. No sign of the black or white screen of death yet, but there again, that only happened to me twice in three months of running 4.8.4.10, and so it's way too early to determine if this bug has been fixed. The new bug is that if a serial automation command is fired at the start of a DCP within a playlist containing multiple DCPs, there is a split-second flash of Cinelink snow on the screen between the two DCPs. I did a clean install of the media block software, checking the "nuke everything and start over" box bottom right, which I think rules out stray data or settings left over in the cat862 as being a factor. We use an AP20 driven by serial automation commands in playlists from the DSS200. Projector cues work fine without any on-screen artifacts, but AP20 serial cues cause the flash of snow if they're right on the "splice" between two DCPs. I managed to work around it by offsetting the serial cues by a second. If the cues fire once the new DCP is actually playing everything works fine, but there would appear to be a glitch in the code that affects the firing of serial cues during the transition between two DCPs.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 07-12-2015 02:03 PM                     Steve, Oh, sorry my bad. 4.7.4 is for DSS200 not for DSS100. Leo, an interesting - and quite major - bug. Thanks for reporting it.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 07-13-2015 06:08 AM                     It would appear that 4.7.4 will load on a DSS100 system but doesn't offer any benefits over 4.7.3.3.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 07-13-2015 07:19 PM                     Goodness, so many issues JUST loading firmware. Tsk, tsk, tsk... Mark  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 07-13-2015 08:37 PM                     The best server is always worth a bit of extra hassle. - Carsten  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 07-14-2015 05:29 AM                     It is possible that the problem Leo mentions is limited to just series 1 projectors. Hopefully, Leo will submit a full problem report complete with logs. I'll still take a Dolby DSS server over any other. They remain the most reliable server in the industry.  |  IP: Logged

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