ill post pics later but orange light comes on with 2 clicks on plug in then turn on logo turns white and briefly get 24v to inverters but drops and comes back but inverters never come on all fuses are good on mainboard I havnt tested the transisters yet on it and all fuses are good on on slave inverter were good but one was open on master I replaced it but no difference
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Re: e550vl turns on 24v going to inverters fluctuates
Check PSON from main board.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: e550vl turns on 24v going to inverters fluctuates
ill check the actual voltage but its turning the power supply onComment
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Re: e550vl turns on 24v going to inverters fluctuates
But if it's not stable, then your problem is there.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: e550vl turns on 24v going to inverters fluctuates
oh if ps_on is not stable it wont turn on all the rails I read another post here that there voltage was 3.1 instead of 3.3 and it caused the issue thanks and ill check it after I get homeComment
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Re: e550vl turns on 24v going to inverters fluctuates
it stays at 2.83 on power up so there is a problemComment
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Re: e550vl turns on 24v going to inverters fluctuates
OK, unplug inverter(s) and see if 24V behaves the same.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: e550vl turns on 24v going to inverters fluctuates
yea it behaves the same and when I turn it off voltage reapears on 24v going down to 0Comment
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Re: e550vl turns on 24v going to inverters fluctuates
So, how much does it vary by?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: e550vl turns on 24v going to inverters fluctuates
ps_on is at .06 with set off 2.88 on
and the voltage I see on 24v will go from 0 to 8 to 12 to 0 to 16 then stay at 0 and if I press power to turn set off it shows 24v but drops slowly as caps dischargeComment
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Re: e550vl turns on 24v going to inverters fluctuates
Can we see the pictures of your boards?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: e550vl turns on 24v going to inverters fluctuates
sorry need to get to my comouter for pictures im on my phone but if I cut the pson wire and measure the the voltage is 3.30 so is tjere sonething on the oower board side bringing it downComment
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Re: e550vl turns on 24v going to inverters fluctuates
here is the power board and mainboard let me know if theres any other views you needAttached FilesComment
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Re: e550vl turns on 24v going to inverters fluctuates
sHOPJIMMY :http://www.shopjimmy.com/vizio-0500-...upply-unit.htm
Pictures of the inverter board?
"if I cut the pson wire and measure the the voltage is 3.30 so is tjere sonething on the oower board side bringing it down" That does not make sense since you have indicated that it does go high and low when the TV is on and when TV is off, I do not think you you have PS_ON problem.
The filter caps for the 24v are under the heatsink. Can you see if they have domed tops?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: e550vl turns on 24v going to inverters fluctuates
someone had this set before me and took the caps off and put them back on and on the master inverter I put in a new fuseAttached FilesComment
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Re: e550vl turns on 24v going to inverters fluctuates
the reason I cut the pson wire was when connected and tv is on it reads 2.88v but when i just measure mainboard side when disconnected it reads 3.3Comment
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Re: e550vl turns on 24v going to inverters fluctuates
That's completely normal, and doesn't indicate a fault.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: e550vl turns on 24v going to inverters fluctuates
okComment
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Re: e550vl turns on 24v going to inverters fluctuates
those circled are r304 r308 r305 on power supplyAttached FilesComment
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Re: e550vl turns on 24v going to inverters fluctuates
and the 24v caps look fineComment
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Hi.
I kindly ask you to help me solve the problem.
Dell Precision 5510, motherboard AAM00 LA-C361P Rev:2.0
The board turns on, there is no image.
Read more. When the power supply is connected, the front panel indicators light up briefly.
When you press the power button, the button indicator lights up. The board works
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good morning, I have a samsung UE55F8000SZ tv that turns on, shows the logo and turns off after 1-2 seconds.
This defect happens continuously, hearing the classic click of the relay every time.
Power supply board BN44-00636B
disconnecting the mains and lamps from the power board always causes the same problem.
Is it normal that without anything connected this power supply turns on and off cyclically?
any suggestions on what to check?
thanks in advance
Comment