I am close to the end of a job and need to sort out a problem with two sharp LCDs that are being controlled via RS232. One is a current model 52" Aqus LC-52D85X, the second is an older 32" model LC-32GA4X.

I'm using a RTI system for control, XP-8, T1 for the 52" and a RK2 for the 32". I have sent the Disable Power Save Off String, RSPW0001\r to each and have confirmed in the menu that the Ecology Setting is Off.

Both units Power On and Off correctly, BUT, if powered off (Standby) for more than about ten minutes, thay won't Power back up out of Standby via RS232.
As a work around, I have Set the T1 Source selection buttons to Stand Alone mode and am sending a Discrete Power On command, the down side to this is that it powers up on the last Input that the screen was on when powered down, instead of selecting the new input, which means a second push of the correct Input Button is required.

May have to live with that one! Any suggestions?

I dont understand Stand Alone mode because ive only used RTI remotes with Crestron systems. Your post makes it sound like theres automated macro creation of some sort when you add in sources. Is this the case? If so .. nice.

When you say your sending a discrete on command as a work around... Are you attaching it to the source selection button? So that if DVD is pressed the TV comes on?

If so.. add the correct discrete input command in the same way you added the discrete on command. Match inputs with sources.

After rereading your post.. it seems like you already have the discrete input command in the macro so maybe you just need to add more delay.

39,Thanks for the response, firstly, I should have mentioned that this is a commercial job, so that there are going to be a variety of people using the training room so that the more reliable/bullet proof I can make the system the better. The screens were all supplied.

On RTI remotes, you can build a Macro on any button, or (providing you are using one) you can build a Macro on the processor and then assign the System Macro to the button.
This is what I've done in this case, so I have, source buttons, PC, TV, Sat, DVD, DVD2, Radio, CD and Tivo, all with the appropriate System Macros on the processor.

So, as previously mentioned, I'm using RS232 to control the 52" Sharp LCD, if I power the system down, as long as it is powered back on in less than (about) ten minutes it powers back up on the selected input just fine.

The buttons on the remotes can also (in button properties) be set to 'Stand Alone' mode, this means that the remote can similtaneously send a IR command directly from the remote as well as sending a (RF triggered) Macro from the processor. So, I've put a discrete 'Power On' command onto the source buttons requiring the screen to be On. This now means that the screen definately Powers Up regardless of how long the screen has been Off.

If the screen has only been Off for a short period, it comes back on to the correct source (that has been selected) - No problem. If on 'TV' at Turn Off, will turn back on to which ever source is selected.

If the screen has been Off for a longer period, more than about ten minutes to overnight, (Due to the direct IR command) it does Power On, only problem is, that it is on the same input (e.g. TV) that the screen was on when Powered Off, which requires a second press of the source button to get it right. This second button press is what I'm trying to avoid.

Ok this part makes perfect sense now.



I had a similar issue with a Sharp LCD a year ago. For me i had 1 minute not 10 :).


So if i understand this you have your macro working exactly as you did but you have also added an IR Power ON command.


From what im hearing here.. It seems that the TV is going into "deep sleep" and RS-232 doesnt work in deep sleep mode. This is exactly what i experienced. So were on the same page.

The IR command still works form deep sleep mode. This also makes sense.


In my opinion.. with the TV being in deep sleep mode.. then being woke up via the IR command..

All you need to do is

A: Solve the stupid deep sleep issue by shutting it completely off

Or..

B: Put enough delay in your macro for the TV to wake up and start accepting input commands.

So lets say your macro looks like this....

IR TV ON
AUDIO REC ON
RS-232 TV INPUT 1
AUDIO REC INPUT DVD

Change it to this....

IR TV ON
AUDIO REC ON
Delay 1.0 seconds (adjust this on site to match exactly how long you need for the TV to be awake and accepting commands.)
RS-232 TV INPUT 1
AUDIO REC INPUT DVD

The delay will put the other commands on hold while the TV wakes up from the IR power on command.. then once its had its coffee it can accept the RS-232 command to switch inputs.

My guess is that the TV starts up slower after being in deep sleep mode so the original macro wont work unless the delay is made longer.

One last question is.. Does the IR command require line of sight? Or can it be sent over an emitter? Using an emitter would be better.

Also.. heres the instructions i wrote out in my notes for dealing with the Sharp i had problems with.

HP LC2600N POWER (REALLY A SHARP)

Menu/setup/standby mode/Mode 1 Should be enabled

Mode 2 offers power saving but causes the display not to come on via rs-232 power on command.

I didnt send any strings to it to change modes.

Could do an emitter if required - See Below

Default was Mode 2, Changing to Mode 1 fixed the Problem, I removed the IR commands from the Source Buttons and all works fine.

Thanks for you help.
Iain

There was a generation of Sharps some years back where when powered off the serial chip set was also powered off. This feature found its way into other displays Sharp made for others or with whom they partnered ( I recall a Pioneer display where they partnered with sharp--Pioneer glass/Sharp electronics ) where this occurred and the only work around was IR or TTL IR.

It is possible that yours is one of these sets, in which case there is nothing you can do.

In general, Sharp has always been one of my least favorite companies. They have sets that when powered off remove power from the chip set with the serial protocol.
Then you need to send the RSPW\x20\x20\x201\r command. Next you have to disable "Green" settings in the menu to enable RS-232 and the latest displays ( as of 3 weeks ago ) have returned to the RSPW\x20\x20\x201\r command.

A month or so back we had a job which included an older Sharp that had issues similar to those you've described and I dropped an emitter inside the unit and controlled the unit with IR. There were no settings I could discover in setup to enable RS-232. The RSPW1 command did not work. Your only viable solution may be to move to IR control or at least power on IR and if neatness counts you may need to drop the emitter inside the unit.

Alan

Hi,

try post 19 here:

[Link: remotecentral.com]

D