Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

[Andrew F. Ali]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

When you say you bridged the connector, what exactly did you bridge> It doesn't stand to reason if the separate strips all the LEDs light up but when you connect only half light up. Did you bridge across or along? If you bridge across, only half the LEDs will light up. Can I see a picture of what you did?

[sordids999]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Right sorry to confuse things but this is what I have done to try and get it to work and now the first strip works if I use the test points
So there must be a break somewhere on the negative side on the first strip ?

[Andrew F. Ali]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Yes there is a break there.

[sordids999]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

It's strange how all six are the same though

[Andrew F. Ali]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Indeed strange. Perhaps they all got some mechanical stress from manufacture? So what do we have now ^ pairs of strips and all 12 LEDs working on each strip?

[sordids999]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Ok so doing this only lights up one side of the strip but at the top strip if I go from one side of the negative point to the other side the led strip lights up fully

[Andrew F. Ali]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

The extra wire you have on the top strip gets the entire strip to work. You may have to do the same with the others to get all to light up.

[yohnsee]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Just a quick tought here.
Isn't it strange, that all of the strips need a jumper wire halfway?
If I got it right, your LED tester can only light up half of it at a time.
I have a different kind of tester, and last time I had to open a 32" LG to test the LEDs, because all of them were in series, and my tester couldn't get enough voltage trough them to open.
I hope this is not misleading in any way, I just wrote my experience here.

[Andrew F. Ali]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Just a quick tought here.
Isn't it strange, that all of the strips need a jumper wire halfway?
If I got it right, your LED tester can only light up half of it at a time.
I have a different kind of tester, and last time I had to open a 32" LG to test the LEDs, because all of them were in series, and my tester couldn't get enough voltage trough them to open.
I hope this is not misleading in any way, I just wrote my experience here.

Good thought...I am concerned as well. What kind of LED tester do you have and what voltage does it go up to? Also to ponder on this a bit...For the LEDs to light up and only half of the strip to light up is a bit puzzling as the one half of the strip SHOULD light up independently of the other half furthest from the supply connector but the other half closest to the supply connector SHOULD NOT light up independently.

[yohnsee]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

It is this knob-switch type:

You can chose almost everything on it, but it only goes up to 200V. This time I spoke about earlier, the LED driver was settled around 210V, so that's why mine couldn't light up all of them. I had to disassemble the display to test the stripes individually X-(
Regarding the post: if the stripes test good in halves, and the OP can measure the resistance between 2 connected stripes (~0Ohm) then there is not much left to test here. I would rather move towards the mainboard, as I already repaired 2 Blaupunkt sets with this "stuck-in-standby mode", by changing the eprom (these T.xxxx mainboards usually operate on 25Q32 or similar) to a new one, and getting a trusted working flash from the internet. You also need a good eprom writer.

[sordids999]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Ordered this one

[budm]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Are we not talking jumping the connector that link the two LED strips together?
https://www.badcaps.net/forum/showth...124#post690124

[sordids999]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Started to have another look at this tv tonight and now all backlights are working without any jumpers all removed last night
Confused ! How this is happening

[Andrew F. Ali]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

loose connectors linking the left side and the right side.

[yohnsee]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

loose connectors linking the left side and the right side.

Yes, they can be. OP could test it, while the strips being powered, try to gently push on the connectors that join the left/right side. See, if they stay on or not.

[Andrew F. Ali]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Are we not talking jumping the connector that link the two LED strips together?
https://www.badcaps.net/forum/showth...124#post690124

Yes we suggested that but I'm not sure if he understood when I said 'bridge'.

[Bloopeta]

Re: Blaupunkt 49/235Z-GB-11B-FGU-UK blue standby light

Know this is an old thread, but thought Id share my experience, same model, same probem. Once I got everything positioned so all LEDs illuminated, I put a blob of glue from glue gun on the joints to help hold them in place.