Samsung QE55Q700T

[Fridaycider]

Can anyone identify these diodes on the buffer board and tell me where I can get replacements , also has anyone got a service manual for this tv as can't find one anywhere.
What sequence on the remote works for the service menu ?
The tv reboots when been switched on for a while and want to check these diodes out as they seem to be a problem as I've read up on here .
Tried 4xpsu,t-con,led and mainboards and seems to stop happening when I disconnect any ribbon cable from t-con to buffer boards.
Display has no lines or defects from what I can see .
Any advice is much appreciated.

Thanks in advance the knowledge on here is a great help and learned soo much already.

[SMDFlea]

Re: Samsung QE55Q700T

Is that an 8 or a B

[Fridaycider]

Re: Samsung QE55Q700T

Looks like a B

[R_J]

Re: Samsung QE55Q700T

It should be DT1042-04SO-7

[lotas]

Re: Samsung QE55Q700T

Dt1042-04so

[Fridaycider]

Re: Samsung QE55Q700T

Thank you

[Fridaycider]

Re: Samsung QE55Q700T

Wow , really hard to find any in the u.k.?

[Fridaycider]

Re: Samsung QE55Q700T

D1213A-04SO-7 rs components say this is the alternative as DT1042-04SO-7 is discontinued?

[Fridaycider]

Re: Samsung QE55Q700T

https://uk.rs-online.com/web/p/tvs-diodes/8270437

[Fridaycider]

Re: Samsung QE55Q700T

https://uk.rs-online.com/web/p/tvs-diodes/8270437

Can this be used ?

[R_J]

Re: Samsung QE55Q700T

Yes the D1213A-04SO should be fine to use.

[Fridaycider]

Re: Samsung QE55Q700T

Thanks for the help but not sure if needed now . Did the tape method and narrowed it down to the right hand connector and at the moment very slight temporary line in screen so need to look a bit further into it .

[Fridaycider]

Re: Samsung QE55Q700T

Be good if can get schematics. Also does anyone know the remote sequence to get to the service menu please ?

[lotas]

Re: Samsung QE55Q700T

Be good if can get schematics. Also does anyone know the remote sequence to get to the service menu please ?

Method 1 call the service menu
Put the TV into standby mode, turn off the TV with the remote control, then press the buttons on the remote control in sequence: “Info, Menu, Mute, Power”, then the TV will turn on and display the service menu.

Method 2 enter the service menu
Turn off the power. On the remote, press Mute and then 1, 8, 2 and Power

Method 3 enter the service menu
When the TV is in standby mode, press DISPLAY, P.STD, MUTE, POWER on the remote control.

Method 4 enter the service menu
When the TV is in standby mode, press SLEEP, P.STD, MUTE, POWER in sequence on the remote control.

Method 5 to enter the service menu
When the TV is in standby mode, press DISPLAY, MENU, MUTE, POWER on the remote control.

Method 6 to enter the service menu
On the remote, press Mute, then press 1, 1, 9 in sequence.

[Fridaycider]

Re: Samsung QE55Q700T

Thank you .

[lotas]

Re: Samsung QE55Q700T

Warning: the service menu must be handled with care. Incorrect operation may result in the inability to turn on the TV. By entering the service menu, you take full responsibility for the further performance of the TV at your own risk.

[Fridaycider]

Re: Samsung QE55Q700T

Need to try a factory reset but someone has set a code and don't know it

[lotas]

Re: Samsung QE55Q700T

The reset can be done in the service menu "Factory Reset".
More or less like this : https://www.youtube.com/watch?v=oN9AS2NvIbE

[Fridaycider]

Re: Samsung QE55Q700T

Has anyone any information on removing the backlight panel on this model as the display is part of the frame and either the panel needs to be removed from frame or the backlight panel unclips from the rear leaving the panel on the frame . Not sure how to go about it ?

[Fridaycider]

Re: Samsung QE55Q700T

I've unplugged the upper backlights and it's stopped rebooting on another set
. The backlights are all working but can one be shorting causing this