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dell e176fpf ena pin
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Re: dell e176fpf ena pin
Can we see the pictures of the bottom side of the board?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=24809
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Re: dell e176fpf ena pin
The pictures of your Bottom side of the board you have DO NOT match the picture of the top side of the board you have shown in post #1, they are not the same board!
You need to show us YOUR board not the picture of someone else board.
There will two control lines (BL-ON, Dim) that go to the Inverter section from the logic section.Last edited by budm; 04-06-2018, 09:53 AM.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=24809
Comment
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Re: dell e176fpf ena pin
Man! the pictures are not in focus at all, I cannot read anything on the board.
BTW, are you sure this is Dell e176fpf, NOT E173FPF?
I only see this board used in the E173FPF.
The P/N as printed on the bottom side of the board is 490271200101 or 490271200100 , the number as printed on the top side of the board is 790271200800?
Can we see the sticker on the back on the back of the monitor that shows model number and the revision number?
BTW, what is the P/N as printed on top of the IC U1 in the inverter section?
Please look at the attached pictures to see if it matches YOUR board or not.
Pictures provided by shopjimmy.Last edited by budm; 04-06-2018, 02:22 PM.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=24809
Comment
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Re: dell e176fpf ena pin
first i want to thank you so much
this is my boards
U1 OZ9RRAG
i see all numbers on it
bottom side no 490271200101
top side no 790271200800
the sticker on the back on the back of the monitor (damaged) so i suggest this is dell e176fpf
but now i believe you dear that is dell e173fpf
i'm sorry for this mistakes
and thank you again very much you'r very good manLast edited by hazim; 04-06-2018, 05:20 PM.
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Re: dell e176fpf ena pin
So your board matched the pictures I post in my post #6. If they are then I believe I can see the two control lines that go to the Inverter section.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=24809
Comment
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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=24809
Comment
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Re: dell e176fpf ena pin
my dear budm
point a 1.8 v even off monitor or on
point b 3.3 even off monitor or on
but i'm under stand what do you want
we search the point that when on monitor volt appear on it
and when off monitor volt dont appear on it
and i search for all point in board and i found that tow point in the bottom of board beside key connector C and D lock at picture please
point C 3.3 volt when on ----- dont appear when off
poit D 2.02 volt when on -------- when off goes to 0.02 volt
is point C BL -ON ??????? and point D dim ????
i'm sorry my camera is not good
thanksssss
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Re: dell e176fpf ena pin
OK, that IC U1 OZ9RRAG is the inverter control IC, pin 1 is the ENA pin so all you have to do is to trace out where pin 1 goes to which will be your control pin.
You can check pin 1 of the IC when monitor is OFF and when Monitor is ON.
There is also spec sheet for the IC and it also has application circuit on how to use the IC. The ENA pin is active LO, as you can see, 0~1V = ENA, 3~5 = Disable, that is why in the circuit it has Q2 as an inverter for the control signal so it is set to Active HI.
It helps a lot to be able to get the P/N and the spec of the IC.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=24809
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