Re: Neovo F-419 no power.
Is their any one that can help me trouble shoot my Neovo F419 monitor?
Is their any one that can help me trouble shoot my Neovo F419 monitor?
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Re: Neovo F-419 no power.
Oops missed a page of the thread
*** EDITED ***Last edited by newtothis; 04-12-2015, 02:38 PM.Comment
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Re: Neovo F-419 no power.
I have been checking for fuses but cant see any small ones on the back of the board.
If budm does not come back on I will have a look back at the whole thread tomorrow.
Not sure what you mean about the board layout being different - perhaps small differences? the board number and revision are the same as the OP?
he has posted a schematic in post 1? is it not relevant?
LATER - I see now you mean a different Main boardLast edited by selldoor; 04-12-2015, 03:25 PM.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Neovo F-419 no power.
can you do the tests mentioned in this post
https://www.badcaps.net/forum/showpo...2&postcount=21Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Neovo F-419 no power.
All components measure ok. However I measure 6.61 volts across C809 with power to the board and the logic board not connected.Comment
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Re: Neovo F-419 no power.
OK, lets remove the jumper that feeds the B+ to the inverter circuit to see if the power supply will start up OK without inverter circuit in place.Attached FilesNever stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Neovo F-419 no power.
Ok where do I put my meter for this test? I also assume that the logic board is still disconnected.Comment
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Re: Neovo F-419 no power.
Did you remove the jumper to isolate the inverter circuit from power supply?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Neovo F-419 no power.
Ok sorry it took so long to get back to you. Yes the jumper is removed. Now what, nothing happens.Comment
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Re: Neovo F-419 no power.
OK, hook the logic board to the power supply board and see if you can see the LED power lights when you activate the power switch.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Neovo F-419 no power.
Ok everything hooked back up and the power light does not come on when I press power on.Comment
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Re: Neovo F-419 no power.
Budm are you still their??Comment
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Re: Neovo F-419 no power.
Can you do the tests on U801 in this post
https://www.badcaps.net/forum/showpo...0&postcount=42
NO POWER TO THE BOARDPlease upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Neovo F-419 no power.
-V to U801 pin 1 = .22 ohm
-V to U801 pin 3 = 1.52 Meg ohm
-V to U801 pin 6 = .62 ohm
R821 to u801 pin 3 = .22 ohmComment
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Re: Neovo F-419 no power.
And the voltages
https://www.badcaps.net/forum/showpo...9&postcount=44
Dont be fooled by the results he got - start high and work down.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Neovo F-419 no power.
-V To U801 pin 1 = 0 volts
-V to U801 pin 3 = 9.033 volts
-V to U801 pin 6 = 0 voltsComment
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Re: Neovo F-419 no power.
What is the part number on U801Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Neovo F-419 no power.
I do not see a part number on U801Comment
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Re: Neovo F-419 no power.
Now what?Comment
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Re: Neovo F-419 no power.
Does anyone have a parts list or schematicComment
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