Hisense 50r6- no standby, no power, bad main board?

[LemoneyF]

Hi all

I have a Hisense 50r6 that quit suddenly, immediately after turning it on. It no longer shows red a standby light and will not turn on. Completely dead.

I have tested the power supply and found the following:

363V and 373V across the input caps

bri- 0V
ana- 0V
vamp-17.03V
vamp-17.03V
stb- 0V
12V- 9.3V
12V- 9.3V

To the extent of my knowledge (...not far!) these numbers are normal for a Hisense power supply in a standby state, though I would like some confirmation that 9v is normal!

This is the exact power supply:
http://www.mxmee.com.au/index.php?ro...oduct_id=11815

I have heard that the main boards are known to go bad, and I have the opportunity to buy one. (not cheap).

Is there anything obvious I am missing? anything I could try?

Been a fantastic TV, hoping I can save it. Thanks!

[nomoresonys]

Re: Hisense 50r6- no standby, no power, bad main board?

can you post a good clear picture of the legend/map of expected voltages of the powerboard, looks like its there by those 4 capacitors? or list each pin number along with the description beside it, looks like theres more than the 7 you listed.

[nomoresonys]

Re: Hisense 50r6- no standby, no power, bad main board?

looks like something is amiss with those voltages, see if the one labeled stb is connected or not.

[dskall]

Re: Hisense 50r6- no standby, no power, bad main board?

Try heating main processor and then try turning it on.

[LemoneyF]

Re: Hisense 50r6- no standby, no power, bad main board?

Hi Thanks for the replies,

Yes this is part of the problem I am having. I cannot find any information relating to expected power output from the board. I cannot recall seeing any information on the board but will look when I get home. Thanks.