Another SV screen issue

[flyingboy]

My SV10 is back at Dynon for repairs (went to black) due to being identified in the SB as one with curcuit board issues,
My SV 7 is now playing up, it doesnt always boot up and getting worse. I turn on the switch breaker for it and nothing happens so I perform the buttons reboot option, still nothing, I have found if I turn the breaker off then press the first power on off button on the SV, assuming it is running in the background off the stndby Bat,then turn the breaker on again it comes to life, (sometimes). I have tested the mac address as per the SB and it doesnt fall into the send back for repair category. I am now running out of screens and reliability. Living in Australia makes it a long and expensive round trip for the screens. Hoping for some magic responses here ( and really looking forward to my SV10 coming home.not to mention both screens going back to being reliable. :-[

 

[preid]

Hugh;
Do you have a backup battery on the SV7? I read that you do.
If so, remove the battery, does it bootup better this way? There was a battery issue a while back that I thought was resolved with a new firmware, but its worth a try.
Let us know how this works for you.

 

[flyingboy]

Yes I do have the Bat backup. I will disconnect and see what happens. I was thinking about that last night trying to figure out what has changed maybe it is a Bat issue or software, anyway I will check and advise
Cheers

 

[Dynon]

Hugh - what version of software are you on? Did the problem seem to start after an upgrade to a particular version? If you're on 11.1, does holding button 8 as you turn on that display change the length of time it takes?

 

[flyingboy]

Here is an update. I'm on v 11.1 and just checked the bat parameters on screen
Last battery shut down normal. Date of last test 08-13-2014. Test results pass. Batt life battery status 12.06v charge status charged.
I disconnected the battery and switched on breaker switch, it booted up nice and quick no issue. I switched off the breaker. I then reconnected the batt and switched the breaker on again and it booted up nice and fast. Same as without the batt. I then tried turning it on again using the breaker. No response. I turned off the breaker then pushed button 1 no response I pushed it again and it came on. I repeated this many times obviously this is powering up via the batt. It seems it takes at least two pushes of button one to get it to come on. I then pushed the breaker and it stayed on became a bit brighter confirming main power was applied. This issue seems to have just started. Hope this helps. At least I can get it going.

 

[jakej]

What type of breaker are you using ?

Jake J

 

[preid]

Hugh;
It sounds like you did one boot without battery, than reconnected. Try doing multiple boots with it disconnected- same as you did with it connected. If it starts up fast everytime without need for a 1 button and the battery is disconnected, than I think that is the issue (battery connection) and we can focus on that.

 

[Dynon]

So if your display sometimes doesn't light up (do anything at all) when the backup battery is connected, and you need to cycle the master or reset the display (buttons 1/2/5 simultaneously is a "reset" too, by they way; you may find this useful), then, that's an issue that we know about. We'd need to have your display here to fix it though. If you're seeing only this, the display should boot reliably without the backup battery connected.

When it does power up, does the display take the normal 20-30 seconds to get from the first Dynon logo to the normal SkyView display?

 

[flyingboy]

With the Batt disconnected it boots up nice and fast I tried this several times and it did boot up as expected no issue. I will check this a few more times to be sure. I have often used the 1/2/5 on various occasions but since I have had this issue recently this option does not work. I have to keep either power cycling and or pushing button 1 to get the screen to work. I am going to disconnect the batt and see if this works consistantly, I also have the SV10 batt which I could connect and try. Dynon support if you need the screen please let me know.
Jake FYI, it is a 5amp pullable breaker x 2 one for each screen which I have tested multiple times with a Multi meter attached and have not found any issue.I started there thinking there maybe a power issue but does not appear to be the case? Cheers Hugh

 

[jakej]

Hugh

You have probably tried this & it's a simple check to eliminate one item - try the other screens battery with this unit, that will determine whether it's a bad battery

Jake J

 

[jakej]

Hugh

You have probably tried this & it's a simple check to eliminate one item - try the other screens battery with this unit, that will determine whether it's a bad battery

BTW - circuit breakers can cause 'issues' that a DMM won't find, just ask David Brown.

Jake J

 

[DBRV10]

Someone called?

Yes for all the world what looked like an alternator problem could well have been the CB opening up without popping the external part of the breaker. This was happening when the alternator was at 100-110% load.

I would never have believed it. I still almost don't

 

[flyingboy]

 

[flyingboy]

Today's update. I disconnected the back up batt on the 7 and reconnected to the other batt which is for the 10. To see if it is a back up batt issue. The 7 booted up every time without an issue. I then tried turning the screen on using button 1 ie no main power just the batt power and it worked perfectly. It came on with one press of button 1. It appears the 7 batt is causing the issue. It would be good to get another delivered with my 10'' what do you think Dynon.

 

[jakej]

Hugh
Finally, good to hear after our discussion on phone that you have determined where the issue appears to be. So to make a point - maybe the subject topic & tone could have been a bit more gentle

Jake J

 

[flyingboy]

Jake that is an interesting comment. I am not blaming anyone just asking the questions. Dynon have been pretty good to me as you have.the only reason I have asked the questions is to get help. Apologies if it looks anything but that. Cheers

 

[Dynon]

Is the "bad battery" working OK with the other 10" display? My suspicion here is that is that it's not really the actual battery, but something with the 7" display. Or possibly with the way they're interacting. Unplugging and plugging in the battery might have changed the power state of the system though. Under the battery status page, what is the voltage of the "bad" battery, both with ship's power connected and not?