Backlighting the Display of an X9303 and DX7 - Page 5

superdave01tx · Jan 03, 2009, 11:25 PM

Hilgert,

Ok im not sure why yours was drawing 200-ma so i wired in a 7805 to see if that was the extra draw, It does draw a lil extra but still only 44.6 ma.

So 10.4v transmitter pack to a 7805 to the inverter to a 5x3 EL panel under 45 ma..... Ill try a third meter when i can.

now off to install.......

hilgert · Jan 04, 2009, 12:10 AM

Do you have an extra 5x3 panel? If so I'd like to try it on my inverter, and try your inverter on my panels.

-Hilgert

superdave01tx · Jan 04, 2009, 12:13 AM

Ok i just tried bot the 5x3 and the 5x1 and neither is brightenough... they wouldnt even show in the day time but might help at nite...... Im gonna check the voltage from the inverter and report back....... the pix fo your is acceptable, either of these are close to yours, didnt you say you did NOT remove the film from back of lcd?

I have an extra 5x3 panle.

superdave01tx · Jan 04, 2009, 12:14 AM

Oh if you can measure the voltage out of your inverter.

hilgert · Jan 04, 2009, 12:19 AM

Okay, let's get together on Sunday and compare our inverters and panels - I will bring my 9303.

I did NOT remove the foil on my LCD panel. My inverter is a 5V inverter.

PM me your schedule - I am generally free on Sunday - looks like it's going to be too windy to fly outside. I may do some indoor flying at Mike's Hobby Shop if you want to meet there - they are open until 2pm.

-Hilgert

superdave01tx · Jan 04, 2009, 12:22 AM

Ok i have 94 volts out of the inverter, I think the panels can take 120, least most can so maybe thats the reason of lack of brightness here.

If i remove the film on the back of the LCD im sure it would be fine but as its my ONLY transmitter......... Im gonna look to find a replacement LCD panel, it looks generic and i dont see JR on it anywhere so if i can find one local im more brave, JR wont sell parts for them, A guy at out field uplled his antenna out and they said will fix under warranty but will not sell parts. good and bad...... the antenna would take 5 min to replace yet hes out of a radio 2 weeks proballly but least its free parts.

hilgert · Jan 04, 2009, 12:26 AM

Do you have a way to check the frequency of the inverter's output? I can dig up my digital scope if I remember and bring it along (it's portable) as well.

From what I remember (I am not an expert on EL panels) the higher the frequency, the more bright the panel will be (put it will also reduce life, but I doubt we would care). 94 volts AC sounds okay (could actually be anywere from 90 volts to 120 volts).

I would not remove the foil...the LCD panels won't be cheap to replace. I doubt Horizon would consider "removal of the LCD panel with the translucent foil being removed" a warranty replacement thing -they would charge you for it.

-Hilgert

superdave01tx · Jan 04, 2009, 12:32 AM

yes i imagine foil removal wouldnt be a freebie.... unless its just peeled itself off

\

Ok i just checked the panles on 120 vac from the WALL...... it is a tad brighter but still not near brightenough to shine thru the foil, I wonder if my foil is different then yours, i think it has to be because for athe EL panle to shine thru this one it would heat up the radio!

I have a bench scope and severl freq counters and a pocket scope thats reall cool also but there ALL at my farm on the work bench, thats where id o most all my electrnic work for $.

hilgert · Jan 04, 2009, 12:36 AM

Okay, let's do a swap out of EL panels and inverters. PM me your schedule for Sunday and perhaps we can meet at Mike's (just up the road from Tanners). Mikes is open from 11-2 on Sundays.

-Hilgert

superdave01tx · Jan 04, 2009, 12:37 AM

oh i did notice the PCB has a place to connect a EL panel and power

I see no make or model on the display so im gonna look for visual comparison as it looks very familar from a search i did a few days ago....

superdave01tx · Jan 04, 2009, 12:49 AM

cant find pixel size anywhere... would help find replacement.

hilgert · Jan 04, 2009, 12:54 AM

There is more to this than meets the eye...

Check your PM...

-Hilgert

superdave01tx · Jan 04, 2009, 01:20 AM

Hers pix of the LCD panel from MY X9303.....

hilgert · Jan 04, 2009, 01:25 AM

That's an X9303 LCD panel alright - just like the ones in both of my 9303's.

-Hilgert

superdave01tx · Jan 04, 2009, 02:14 AM

my curiosity got me , like it always does and i removed the film, it lets VERy lil light thru, EL panle would have to be SUPER bright to work, now i gotta get the thing back together, connectors sure are CLOSE!!!!!!!!!!!

Jan 04, 2009, 01:20 AM	#73
superdave01tx Registered User Join Date: Dec 2008 Location: Dallas-Ft Worth Texas Posts: 19	Hers pix of the LCD panel from MY X9303..... Attached Thumbnails 40.7 KB · Views: 912 27.6 KB · Views: 714 29.4 KB · Views: 527 27.6 KB · Views: 603

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Mounting the Sony 5" LCD panel to your 8UAF	Canada Goose	Aerial Photography	4	Dec 11, 2008 08:39 PM
Wanted GOOD Micro Rx in exchange for an IBM Laptop LCD panel	heli_ebook	Aircraft - General - Radio Equipment (FS/W)	0	Oct 24, 2008 07:30 PM
Discussion Seagull LCD Panel, funny audio signal	aeropics	Eagle Tree Systems	0	Aug 25, 2008 07:46 AM
New Product New gyro w/ advanced LCD panel	ricky_p	Radios	0	Jul 22, 2008 01:32 PM
Question Broken LCD panel on a Futaba 9C	zolo	Radios	3	Jun 30, 2008 12:34 PM

Jan 03, 2009, 11:25 PM	#61
superdave01tx Registered User Join Date: Dec 2008 Location: Dallas-Ft Worth Texas Posts: 19	Hilgert, Ok im not sure why yours was drawing 200-ma so i wired in a 7805 to see if that was the extra draw, It does draw a lil extra but still only 44.6 ma. So 10.4v transmitter pack to a 7805 to the inverter to a 5x3 EL panel under 45 ma..... Ill try a third meter when i can. now off to install.......

Jan 04, 2009, 12:10 AM	#62
hilgert Buyin', Tryin' and Flyin' Join Date: Jan 2005 Location: DFW, Texas Posts: 2,264	Do you have an extra 5x3 panel? If so I'd like to try it on my inverter, and try your inverter on my panels. -Hilgert

Jan 04, 2009, 12:13 AM	#63
superdave01tx Registered User Join Date: Dec 2008 Location: Dallas-Ft Worth Texas Posts: 19	Ok i just tried bot the 5x3 and the 5x1 and neither is brightenough... they wouldnt even show in the day time but might help at nite...... Im gonna check the voltage from the inverter and report back....... the pix fo your is acceptable, either of these are close to yours, didnt you say you did NOT remove the film from back of lcd? I have an extra 5x3 panle.

Jan 04, 2009, 12:14 AM	#64
superdave01tx Registered User Join Date: Dec 2008 Location: Dallas-Ft Worth Texas Posts: 19	Oh if you can measure the voltage out of your inverter.

Jan 04, 2009, 12:19 AM	#65
hilgert Buyin', Tryin' and Flyin' Join Date: Jan 2005 Location: DFW, Texas Posts: 2,264	Okay, let's get together on Sunday and compare our inverters and panels - I will bring my 9303. I did NOT remove the foil on my LCD panel. My inverter is a 5V inverter. PM me your schedule - I am generally free on Sunday - looks like it's going to be too windy to fly outside. I may do some indoor flying at Mike's Hobby Shop if you want to meet there - they are open until 2pm. -Hilgert

Jan 04, 2009, 12:22 AM	#66
superdave01tx Registered User Join Date: Dec 2008 Location: Dallas-Ft Worth Texas Posts: 19	Ok i have 94 volts out of the inverter, I think the panels can take 120, least most can so maybe thats the reason of lack of brightness here. If i remove the film on the back of the LCD im sure it would be fine but as its my ONLY transmitter......... Im gonna look to find a replacement LCD panel, it looks generic and i dont see JR on it anywhere so if i can find one local im more brave, JR wont sell parts for them, A guy at out field uplled his antenna out and they said will fix under warranty but will not sell parts. good and bad...... the antenna would take 5 min to replace yet hes out of a radio 2 weeks proballly but least its free parts.

Jan 04, 2009, 12:26 AM	#67
hilgert Buyin', Tryin' and Flyin' Join Date: Jan 2005 Location: DFW, Texas Posts: 2,264	Do you have a way to check the frequency of the inverter's output? I can dig up my digital scope if I remember and bring it along (it's portable) as well. From what I remember (I am not an expert on EL panels) the higher the frequency, the more bright the panel will be (put it will also reduce life, but I doubt we would care). 94 volts AC sounds okay (could actually be anywere from 90 volts to 120 volts). I would not remove the foil...the LCD panels won't be cheap to replace. I doubt Horizon would consider "removal of the LCD panel with the translucent foil being removed" a warranty replacement thing -they would charge you for it. -Hilgert

Jan 04, 2009, 12:32 AM	#68
superdave01tx Registered User Join Date: Dec 2008 Location: Dallas-Ft Worth Texas Posts: 19	yes i imagine foil removal wouldnt be a freebie.... unless its just peeled itself off \ Ok i just checked the panles on 120 vac from the WALL...... it is a tad brighter but still not near brightenough to shine thru the foil, I wonder if my foil is different then yours, i think it has to be because for athe EL panle to shine thru this one it would heat up the radio! I have a bench scope and severl freq counters and a pocket scope thats reall cool also but there ALL at my farm on the work bench, thats where id o most all my electrnic work for $.

Jan 04, 2009, 12:36 AM	#69
hilgert Buyin', Tryin' and Flyin' Join Date: Jan 2005 Location: DFW, Texas Posts: 2,264	Okay, let's do a swap out of EL panels and inverters. PM me your schedule for Sunday and perhaps we can meet at Mike's (just up the road from Tanners). Mikes is open from 11-2 on Sundays. -Hilgert

Jan 04, 2009, 12:37 AM	#70
superdave01tx Registered User Join Date: Dec 2008 Location: Dallas-Ft Worth Texas Posts: 19	oh i did notice the PCB has a place to connect a EL panel and power I see no make or model on the display so im gonna look for visual comparison as it looks very familar from a search i did a few days ago....

Jan 04, 2009, 12:49 AM	#71
superdave01tx Registered User Join Date: Dec 2008 Location: Dallas-Ft Worth Texas Posts: 19	cant find pixel size anywhere... would help find replacement.

Jan 04, 2009, 12:54 AM	#72
hilgert Buyin', Tryin' and Flyin' Join Date: Jan 2005 Location: DFW, Texas Posts: 2,264	There is more to this than meets the eye... Check your PM... -Hilgert

Jan 04, 2009, 01:25 AM	#74
hilgert Buyin', Tryin' and Flyin' Join Date: Jan 2005 Location: DFW, Texas Posts: 2,264	That's an X9303 LCD panel alright - just like the ones in both of my 9303's. -Hilgert

Jan 04, 2009, 02:14 AM	#75
superdave01tx Registered User Join Date: Dec 2008 Location: Dallas-Ft Worth Texas Posts: 19	my curiosity got me , like it always does and i removed the film, it lets VERy lil light thru, EL panle would have to be SUPER bright to work, now i gotta get the thing back together, connectors sure are CLOSE!!!!!!!!!!!