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757 CDU problems

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I'm probably doing something wrong but my CDU is not working properly. I just get a black screen. I click the buttons to see if it reacts, but it just flickers and goes back to a black screen. I tried look for setup procedures in the manuals for the CDU but nothing related to that. Can someone help? The situation was engines off, ground power on, all systems working.

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>The situation was engines off, ground power on, all systems>working.Can we have some more details please. like which aircraft, how you started FS, etc etc.Oh and a name is always nice as per our forum guidelines too please.

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The aircraft was American Airlines. 757-200RR No winglets, hatch over wings. Started with 757 on the gate at KTPA loaded from the create flight menu. As soon as it loaded I shut engines off to begin pre-flight settings. I established ground power connection and activated it. Then when I turned to the CDU that's what I encountered.Esteban Aldarondo-

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Estaban,How are you loading the aircraft? Please ensure you start from the default flight before changing to the 757 rather than using the create a flight menu.

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I choose the 757 from menu. Then load the flight into the airport. Thats how I load my PSS777 flights all the time with no issues. You want me to load the cessna default flight at ksea, then load the 757, then change airport? I can try that and see how it goes.Esteban Aldarondo-

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Do you mean that for every flight we do we have to go via the default flight, that seem's ludicrus to me!Sam

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Hi Norman and PSS Team,Great job with the B757. Congrats to all on her release!Everything seems to be great except I am having the same problems with the CDU/FMS.I start with the default FS flight in the Cessna 172, then change to the PSS B757. I have tried several different models of the 752 and all have the same effect.If I load it with the engines running, there is no problem. Everything works fine. The problem is when I try to load it with the engines off or with the cold and dark setting checked.It seems the CDU screen never gets any power. When everything is powered up via APU or ground power, the CDU screen never comes on. In fact, if I start with the engines running and I do have the CDU, if I turn off all power (engine generators/standby power/battery) then turn them all back on again, everything powers up except the CDU.Very strange. Thanks for the help.Chris

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Many developers including PSS and PMDG advise to do this.

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Well I tried it, and I can confirm what cdeck said. The problem persists, even if I the 757 from the default flight. All variations. I didn't change the airport or nothing. I followed the same procedure: Shutdown engine, connect external power, and activate it. The CDU has a black screen. The CDU does work when the engines are on...when I loaded the 757. If engines are turned off and then turned on again, the CDU still won't work. Never seen this before.Esteban Aldarondo-

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>Do you mean that for every flight we do we have to go via the>default flight, that seem's ludicrus to me!>>SamSam:Anybody who has been around the FS add on community for any amount of time knows that the cure for most add on problems is to load the default cessna first every time (location doesn't really matter, just the plane) with any PSS, PMDG, level-d etc... It's not ludicrus, it's just a fact of life for FS simmers. I admit it is a pain sometimes, but the extra 2 min of loading saves you a world of headaches.Regards,Whadzen

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>Do you mean that for every flight we do we have to go via the>default flight, that seem's ludicrus to me!>>SamIf you start up Flight Simulator with the default Cessna 172 as the default flight, there shouldn't be any problem. In this case, you do not need to start a flight and then switch to a complex aircraft.As long as the default Cessna 172 is loading up when starting FS, just pick the PSS 757 or whatever complex aircraft you choose, select your starting airport, ect... THEN start the flight(fly now button).If you are flying a complex aircraft and wish to switch to different complex aircraft, then you should first switch to the default Cessna and let it load up, then switch to the other complex aircraft.As B777ER metioned, all complex addon aircraft developers will tell you that this is neccessary in order to avoid having strange things happen.Hope that helps,Jim Richards

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I did it like you told to,I start at KSEA in the default cessna with the default flight and still CDU ain't working,Autobrake not working,Bleed air not moving,and you can start with the packs on etc etc...any suggestions? Erez

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>any suggestions? >ErezNot until I have finished downloading the same files as you have. Nothing that you are saying here was manifest during a very detailed test over the past number of months.

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I am having the same problems,I am using the 757-200 PW Delta.I am starting with default 172 shut down the prop and master and loaded the 757.I went into setup and made it for cold and dark and fast INS and when I loaded it back up the INS never loads up keeps saying align and blinking the fmc has a black screen but when you click buttons will flash what should be there than back to black.I put the autobrake into rto it than switches itself back to off. JeffG

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Is it just me also or is anyone else having a real slow down on their fps when using the plane? I just seem to notice a large performance drop compared to the PSS777 or LevelD 767. I bet it's just the level of detail, but I found it strange. I also noticed that on a recent flight, the LNAV function doesn't track the route very well. In fact, my plane flew at least 1 or 2 miles to the right of the displayed route on the map and didn't respond to the change in direction from the next waypoint. Anyone had these problems?P.S. The performance is just as terribly low with the gagues refresh rate at max or at the lowest setting. In the 777 there is a change in FPS but not in 757.Esteban Aldarondo-

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As Norman has said this did not happen durring testing.We are both in the process of downloading the same files that you guys have, so we can try and reproduce the error in order to find a solution.As you can imagine, the servers are working overtime at the moment and we are seeing the same download speeds as everyone else, as soon as we can we will be looking at this closely.

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Just a follow-up I loaded the United 757-200 and the plane loaded to cold and dark and I than set up for ext power and than started the apu.I have the IRS set to instant load and still they just blink off and on and never loads up.I still have a black screen for the fmc and the HSI display never comes up or the ADI.I am getting a tcas failure when a transponder code is put in and set to tara.I also have a very bad drop in FPS as in the 2D cockpit its 4-5 fps.I hope this a just a glitch in a file for right now the 757 is unflyable. JeffG

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Jeff,I think the reason there is no data showing on your ADI and HSI along with the blinking IRS align warning is because you haven't entered a LAT/LON position into the CDU/FMS. The problem is you can't do that because there doesn't see to be any power to it at the moment... :)My suggestion is to load the 757 with the engines already running for now. Everything seems to work okay and I have had a couple of successful flights with it.- Chris

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Just to follow up, did a quick bit of testing.Load up with engines running - but don't reach for those cut off switches just yet.Fire up the APU, and let it start up ("Run" showing on APU annunciator). Ensure the APU Gen is connected to the power bus ("ON" showing on "APU Gen" - this is the default anyway).Then, shut down the engines.Voila. CDU display stays up. It just seems if you let it go dark, it won't come back again.This seems to work okay for both Pratt and Rolls variants.I've not tried it with ground power instead of APU yet, but I'm guessing it behaves similarly.Cheers,Mike

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I loaded up the default cessna again and this time set the options to do not change in setup and restarted and loaded up the default flight and than the 757 PW Delta and everything worked.All the problems in the cold and dark are not there now.I also rebooted again and still frame rates sill 4.6 to 6.3 in 2D.I have a P4 3.2 with 1 gig ram and an ATI 800 with 256 ram on the card. JeffG

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