LG RT39NZ40RB Rear pro - Help required - Convergance prob.

**Fernbay** · 09-10-08, 08:27 AM

Hi guys.

I'm looking for some help with an LG RT39NZ40RB Rear projection TV

Convergance blocks have been change, but auto convergance does not work.
A message comes up on the screen saying "Please ensure lights are dimmed" & the message comes up even when the room is fully darkened.

The service manual says the convergence can be set up manualy, except that the remote dosen't have the critical "SVC" button required to get to that screen.

OK + OK gets it into normal service mode, but not the convergence menu.

Does anyone know how to force it into convergance mode?

Failing that, does anyone here have a convergance module availible from a wrecked set?

I think the digital convergance board might be faulty & need replacing.

Pics follow

TIA fellas

**best4less** · 09-10-08, 08:58 AM

service mode

Hold the ok button on the TV and push the OK button on the remote
and then I get the menu looking thing
And then push the sleep button on the remote

You can use the teletext button M instead of sleep button
And better still you need to have a input signal for it to work

**Fernbay** · 09-10-08, 09:13 AM

Tried that - Didn't work

OK + OK & tried every availible button on the hand piece, but no crosshash

**best4less** · 09-10-08, 09:21 AM

Have you got a video input into it
That got me good last time

**Fernbay** · 09-10-08, 09:28 AM

Yep. Set had sync. Tried on AV and on tuner....

**best4less** · 09-10-08, 09:33 AM

Is the sleep button working on the remote ???
Or try a dif remote

**Fernbay** · 09-10-08, 09:45 AM

Sleep works. I could cycle it... 30, 60, 90, 120, 240....

**Fernbay** · 09-10-08, 09:46 AM

Sleep works. I could cycle it... 30, 60, 90, 120, 240....

Maybe I need to see if someone wants to swap the board with me for a yoke

**best4less** · 09-10-08, 09:49 AM

LOL nice try mate

I am on messenger mate

**Oscar** · 09-10-08, 10:17 AM

Sounds like module.Try to rescue the eeproms off the old module if possible , as a full set up takes a long while.
Getting it to save to AC can be a nightmare .(things the manual dont tell you )
Tony from IWAC was the biggest help on these.
We got one in here at present if it can help.
Cheers

**iwacelect** · 09-10-08, 12:47 PM

hi ferny,
ha, got one sitting right next to me as was looking for the datasheet for the stk's

Mate did you get one of the LG alinment tools "service remote" did you?
(just saw the little bugger in the pix)
your right, it could be the digital pcb, did as oscar adv did you remove the old eeproms from the old pcb (PAL1, PAL2, NTSC1, NTSC2) and put them in the new digital control pcb, otherwise the one i have here only has 1 faulty STK in it

**Fernbay** · 09-10-08, 01:15 PM

Quote:

Originally Posted by iwacelect

Mate did you get one of the LG alinment tools "service remote" did you?
(just saw the little bugger in the pix)

Yep, but by the looks of it it's for DLP - I couldn't get it to do anything to this rear pro

**iwacelect** · 09-10-08, 01:53 PM

mate thats strange, couple of weeks ago i did a RT-39NZ43RB same thing conv module, and i used the service remote, strange!!!

**Fernbay** · 09-10-08, 01:59 PM

I even doubble checked it with my PDA camera. It was working...

LG adjust remocon
105-201M

**iwacelect** · 09-10-08, 02:32 PM

yeah thats the one i've got, mate have you actually swapped the eeproms as the conv program when it starts looks at the original settings, so if your eeprom is stuffed (any one) then it wont get the data it needs to start, if after you swap the eeproms and the prob still exists, it got to be the digital pcb is faulty!
have you tried an "in-stop" reset?
do you have another digital pcb to try, or try just about any eeprom?

**best4less** · 09-10-08, 02:43 PM

Did you use the button on the remote that looks like this

**Fernbay** · 09-10-08, 04:09 PM

**Oscar** · 09-10-08, 06:59 PM

The one we have has a pinhole in an ultor cable.
Once thats done you are welcome to try whatever.
The way it says about ambient light , it may have a crook sensor.
The one we had needed a full setup , and if it wasnt for help on here we wouldnt have got it done.
What was going on was all the convergence on the screen was fine , but just outside the screen where you cant see its not right and thats where the sensors are.
Result is you have a nice converged picture but it wont save to auto because it is not good where the sensors are.
The LG manuals dont help at all

**Studio1** · 09-10-08, 09:07 PM

OMG ... this set sounds like a nightmare...

Somehow I get to thinking I am really happy I am out of the TV servicing game...

**iwacelect** · 10-10-08, 07:52 AM

so you got it Oscar, pinhole in the ultor lead, bugger, hard to diagnose!

ferny mate, something wierds going on here, it SHOULD have gone into conv mode with that remote, try looking with fresh eye's, somethings wrong somewhere.

sorry but while i was typing yesterday the conv pcb i had here went, i was going to offer the digital pcb...but.

09-10-08, 08:27 AM	#1 (permalink)
Fernbay Super Moderator iTrader: (30) Join Date: Jan 2008 Location: Newcastle Posts: 874 Spent time on board: 1 Month, 2 Weeks, 5 Days and 7:12:07	LG RT39NZ40RB Rear pro - Help required - Convergance prob. Hi guys. I'm looking for some help with an LG RT39NZ40RB Rear projection TV Convergance blocks have been change, but auto convergance does not work. A message comes up on the screen saying "Please ensure lights are dimmed" & the message comes up even when the room is fully darkened. The service manual says the convergence can be set up manualy, except that the remote dosen't have the critical "SVC" button required to get to that screen. OK + OK gets it into normal service mode, but not the convergence menu. Does anyone know how to force it into convergance mode? Failing that, does anyone here have a convergance module availible from a wrecked set? I think the digital convergance board might be faulty & need replacing. Pics follow TIA fellas __________________ FS:- DM7020 - $525 DM500S $170 , DM500 2A PSU, $25ea... DM500 mobo - $130 - Free domestic express post PM for details

09-10-08, 08:58 AM	#2 (permalink)
best4less I'am Not a Bloody Joke iTrader: (10) Join Date: Jan 2008 Location: Australia Posts: 2,618 Spent time on board: 1 Month, 4 Weeks, 0 Days and 12:30:26	service mode Hold the ok button on the TV and push the OK button on the remote and then I get the menu looking thing And then push the sleep button on the remote You can use the teletext button M instead of sleep button And better still you need to have a input signal for it to work __________________ Please wipe your feet before walking all over me

09-10-08, 09:13 AM	#3 (permalink)
Fernbay Super Moderator iTrader: (30) Join Date: Jan 2008 Location: Newcastle Posts: 874 Spent time on board: 1 Month, 2 Weeks, 5 Days and 7:12:07	Tried that - Didn't work OK + OK & tried every availible button on the hand piece, but no crosshash __________________ FS:- DM7020 - $525 DM500S $170 , DM500 2A PSU, $25ea... DM500 mobo - $130 - Free domestic express post PM for details

09-10-08, 09:21 AM	#4 (permalink)
best4less I'am Not a Bloody Joke iTrader: (10) Join Date: Jan 2008 Location: Australia Posts: 2,618 Spent time on board: 1 Month, 4 Weeks, 0 Days and 12:30:26	Have you got a video input into it That got me good last time __________________ Please wipe your feet before walking all over me

09-10-08, 09:28 AM	#5 (permalink)
Fernbay Super Moderator iTrader: (30) Join Date: Jan 2008 Location: Newcastle Posts: 874 Spent time on board: 1 Month, 2 Weeks, 5 Days and 7:12:07	Yep. Set had sync. Tried on AV and on tuner.... __________________ FS:- DM7020 - $525 DM500S $170 , DM500 2A PSU, $25ea... DM500 mobo - $130 - Free domestic express post PM for details

09-10-08, 09:33 AM	#6 (permalink)
best4less I'am Not a Bloody Joke iTrader: (10) Join Date: Jan 2008 Location: Australia Posts: 2,618 Spent time on board: 1 Month, 4 Weeks, 0 Days and 12:30:26	Is the sleep button working on the remote ??? Or try a dif remote __________________ Please wipe your feet before walking all over me

09-10-08, 09:45 AM	#7 (permalink)
Fernbay Super Moderator iTrader: (30) Join Date: Jan 2008 Location: Newcastle Posts: 874 Spent time on board: 1 Month, 2 Weeks, 5 Days and 7:12:07	Sleep works. I could cycle it... 30, 60, 90, 120, 240.... __________________ FS:- DM7020 - $525 DM500S $170 , DM500 2A PSU, $25ea... DM500 mobo - $130 - Free domestic express post PM for details

09-10-08, 09:46 AM	#8 (permalink)
Fernbay Super Moderator iTrader: (30) Join Date: Jan 2008 Location: Newcastle Posts: 874 Spent time on board: 1 Month, 2 Weeks, 5 Days and 7:12:07	Sleep works. I could cycle it... 30, 60, 90, 120, 240.... Maybe I need to see if someone wants to swap the board with me for a yoke __________________ FS:- DM7020 - $525 DM500S $170 , DM500 2A PSU, $25ea... DM500 mobo - $130 - Free domestic express post PM for details

09-10-08, 09:49 AM	#9 (permalink)
best4less I'am Not a Bloody Joke iTrader: (10) Join Date: Jan 2008 Location: Australia Posts: 2,618 Spent time on board: 1 Month, 4 Weeks, 0 Days and 12:30:26	LOL nice try mate I am on messenger mate __________________ Please wipe your feet before walking all over me

09-10-08, 10:17 AM	#10 (permalink)
Oscar Senior Member iTrader: (0) Join Date: Jan 2008 Posts: 112 Spent time on board: 1 Week, 0 Days and 19:12:09	Sounds like module.Try to rescue the eeproms off the old module if possible , as a full set up takes a long while. Getting it to save to AC can be a nightmare .(things the manual dont tell you ) Tony from IWAC was the biggest help on these. We got one in here at present if it can help. Cheers

09-10-08, 12:47 PM	#11 (permalink)
iwacelect Senior Member iTrader: (0) Join Date: Jan 2008 Posts: 325 Spent time on board: 6 Days and 2:49:40	hi ferny, ha, got one sitting right next to me as was looking for the datasheet for the stk's Mate did you get one of the LG alinment tools "service remote" did you? (just saw the little bugger in the pix) your right, it could be the digital pcb, did as oscar adv did you remove the old eeproms from the old pcb (PAL1, PAL2, NTSC1, NTSC2) and put them in the new digital control pcb, otherwise the one i have here only has 1 faulty STK in it __________________ When I explained to the guy what avatar I wanted, that wasn't what I meant!

09-10-08, 01:53 PM	#13 (permalink)
iwacelect Senior Member iTrader: (0) Join Date: Jan 2008 Posts: 325 Spent time on board: 6 Days and 2:49:40	mate thats strange, couple of weeks ago i did a RT-39NZ43RB same thing conv module, and i used the service remote, strange!!! __________________ When I explained to the guy what avatar I wanted, that wasn't what I meant!

09-10-08, 01:59 PM	#14 (permalink)
Fernbay Super Moderator iTrader: (30) Join Date: Jan 2008 Location: Newcastle Posts: 874 Spent time on board: 1 Month, 2 Weeks, 5 Days and 7:12:07	I even doubble checked it with my PDA camera. It was working... LG adjust remocon 105-201M __________________ FS:- DM7020 - $525 DM500S $170 , DM500 2A PSU, $25ea... DM500 mobo - $130 - Free domestic express post PM for details

09-10-08, 02:32 PM	#15 (permalink)
iwacelect Senior Member iTrader: (0) Join Date: Jan 2008 Posts: 325 Spent time on board: 6 Days and 2:49:40	yeah thats the one i've got, mate have you actually swapped the eeproms as the conv program when it starts looks at the original settings, so if your eeprom is stuffed (any one) then it wont get the data it needs to start, if after you swap the eeproms and the prob still exists, it got to be the digital pcb is faulty! have you tried an "in-stop" reset? do you have another digital pcb to try, or try just about any eeprom? __________________ When I explained to the guy what avatar I wanted, that wasn't what I meant!

09-10-08, 02:43 PM	#16 (permalink)
best4less I'am Not a Bloody Joke iTrader: (10) Join Date: Jan 2008 Location: Australia Posts: 2,618 Spent time on board: 1 Month, 4 Weeks, 0 Days and 12:30:26	Did you use the button on the remote that looks like this __________________ Please wipe your feet before walking all over me

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09-10-08, 04:09 PM	#17 (permalink)
Fernbay Super Moderator iTrader: (30) Join Date: Jan 2008 Location: Newcastle Posts: 874 Spent time on board: 1 Month, 2 Weeks, 5 Days and 7:12:07	Yep. __________________ FS:- DM7020 - $525 DM500S $170 , DM500 2A PSU, $25ea... DM500 mobo - $130 - Free domestic express post PM for details

09-10-08, 06:59 PM	#18 (permalink)
Oscar Senior Member iTrader: (0) Join Date: Jan 2008 Posts: 112 Spent time on board: 1 Week, 0 Days and 19:12:09	The one we have has a pinhole in an ultor cable. Once thats done you are welcome to try whatever. The way it says about ambient light , it may have a crook sensor. The one we had needed a full setup , and if it wasnt for help on here we wouldnt have got it done. What was going on was all the convergence on the screen was fine , but just outside the screen where you cant see its not right and thats where the sensors are. Result is you have a nice converged picture but it wont save to auto because it is not good where the sensors are. The LG manuals dont help at all

09-10-08, 09:07 PM	#19 (permalink)
Studio1 Senior Member iTrader: (0) Join Date: Jan 2008 Location: Inside the toaster Posts: 484 Spent time on board: 3 Days and 11:13:34	OMG ... this set sounds like a nightmare... Somehow I get to thinking I am really happy I am out of the TV servicing game...

10-10-08, 07:52 AM	#20 (permalink)
iwacelect Senior Member iTrader: (0) Join Date: Jan 2008 Posts: 325 Spent time on board: 6 Days and 2:49:40	so you got it Oscar, pinhole in the ultor lead, bugger, hard to diagnose! ferny mate, something wierds going on here, it SHOULD have gone into conv mode with that remote, try looking with fresh eye's, somethings wrong somewhere. sorry but while i was typing yesterday the conv pcb i had here went, i was going to offer the digital pcb...but. __________________ When I explained to the guy what avatar I wanted, that wasn't what I meant!

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