Re: Vizio E500AR no power
Is there anyway to confirm that?...
Naturallyk2
Senior Member
Last Activity: 12-28-2019, 07:25 AM
Joined: 11-28-2014
Location: Fort Drum, NY
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Re: Vizio E500AR no power
When I measured the big caps, I used meter black prb on negative leg of cap. When I measured everything else, I used keter black prb on chassis.Last edited by Naturallyk2; 12-22-2019, 02:54 AM.Leave a comment:
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Vizio E500AR no power
Looked at the previous posts for this tv, but no avail. Lightning is suspect of the damage. Fuse is good. No standby light, try to power TV and all it does is a white light will turn on then turn back off where standby light should be.
347 volt on both the big brown capacitors. No voltage for PS on when I press power button?
1.Ps on-------- 0v
2.GND
3. 3.3VSTB---- 3.23V
4.GND
5.GND
6.GND
7.12VA ---------12.62V
8.12VA ---------12.62V
9.12.VA ---------12.62V
10.GND
11.LINE OFF ---.053V
12.BL_DIM...Last edited by Naturallyk2; 12-21-2019, 08:44 PM. -
Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
LOL. BUDM you are 100% correct. The battery is in fact low in the other meter....Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
BUDM, nvm. I just used my other multimeter to validate the 430 reading and it was flawed. We are sitting at a nice 389vdc now
....
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
I'm going to test it again with a different meter just to validate that reading. What do you mean by the PFC circuit?Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Hoooooly smokes look at that. Fixed. Not sure if it was the EEPROM though. Swapped out the main board with another one and bam! It works. Will upload the picture of the back of the main board on one IC. It looks damaged from the old board.
Sidenote: The main filter cap reaches 435vdc when the TV is on. I'm not sure if that's good or bad since the cap is rated at 390vdc. Any thoughts?...Last edited by Naturallyk2; 12-02-2016, 06:17 PM.Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Vince, when you say eeprom, are you referring to the one on the mainboard? I hope so, because I just ordered a replacement mainboard today....Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Yea, I guess I'll have to bite the bullet and try a main board replacement.Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
So I re-measured the 24v rail off the PS and both slave and master side are putting out 24v. So It looks like I'm trying to figure out why the Mainboard isn't telling the inverters to kick on (since there is no voltage on pin 13 on the main board)Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
From the PS on the 24V rails.Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
The voltages on the regulators U2, U9, U8, U7, Q27, U3, U33. All are within tolerance. I just don't understand why there isn't voltage going to the inverters.Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Yes. Also, I'm unable to turn off the TV by the power button. I have to unplug it in order for it to turn off....Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Nope. No dim image. There is no voltage going to the Inverters. The logo light starts bright and then stays dim afterwards....Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Starts out bright and then dims.Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Oooo. Gotcha!
1) 2.03
2) 3.28
3) 5.13
Yes, it is a 1117...Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Output is 3.28, Input 5.13, Adjust 2.03, Ground pin is at 3.29.....? 3.29 on ground? What type of regulator is this? Anyone have spec sheet?Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
ps on
f1 = 11.85
f2 = 5.166...Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Here are the reading from the pins on the main board from PS.
Pin names from PS to Mainboard
1)PS ON
2)12V
3)12V
4)12V
5) not used
6)SGND
7)SGND
8)SGND
9)5VSB
10)5VSB
11)A
12)B
13)C
PS OFF
1) 0.015
2) 0
3) 0
4) 0
5) Not used
6) 0
7) 0
8) 0
9) 5.178
10) 5.178
12) 5.178
12) 0
13) 0.009
PS ON...Last edited by Naturallyk2; 11-27-2016, 03:30 PM.Leave a comment:
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Re: Vizio VO47L-FHDTV10A turns on and then off (3 seconds)
Holy smokes just made a breakthrough. I guess redoing the soldering work on the ceramic cap on the main filter cap on the PS has now given me the ability to at least turn the TV on. The main cap reads 168 VDC off and 391 VDC on. Problem is, I can't turn the TV off once I press the power button. The backlights or picture does not come on on the TV either.
BUDM, the P/N to the PS is DPS-433bp rev C . Will get you the reading off the main board now that I can actually turn the TV on....Leave a comment:
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