Another E470VLE with "Orange Light of Death!"

[Venomhatch]

Ok, yes I am new here and no I didn't think of joining til I had my first issue I cant seem to solve. I have as stated above a E470VLE in pretty good condition come into my hands because the owner could not invest time into it to fix the issue. Now I saw this TV power up actually a day ago actually last night with no source hooked up to it.

Now I am some what knowledgeable and of course plugged the tv in once I got home and nothing. Just Orange light, no blinking, no powering up. I have had to replace caps before on a few tvs Polaroid, Samsung, and even Sony. But this tv doesn't appear to have any caps needing to be replaced. I mean visually I cant see any cracking or deteriorating. I have checked the main PCB Fuse and it is not blown. Also checked the two tiny little fuses at the end of the bridging wiring harness and they have a connection fine. But other than that I am stumped. Ohh and I even tried the Vizio Approach, and unplugged the tv held the power for say 50 sec to a minute and then plugged back in and not joy.

Help guys please. I will post pics of the two boards and I don't know what else may be needed to see but just ask me and I will upload as soon as I can.

Don.

[Techstar]

Re: Another E470VLE with "Orange Light of Death!"

Have you removed the back and done any basic voltage tests yet and found what voltages are present.& what voltages are not present .

I have a tester that i hold against the switch mode transformer it tells me if the transformer is running or not .

Simple but it helps at knowing where to start!

[Venomhatch]

Re: Another E470VLE with "Orange Light of Death!"

Have you removed the back and done any basic voltage tests yet and found what voltages are present.& what voltages are not present .

I have opened the back but don't know what key areas to focus on?! But yes I have the back of still from doing basic checks on the caps and pictures of the boards also checked for connections between boards to make sure wires were ok. Checked all fuses and they appear unbroken.

[Techstar]

Re: Another E470VLE with "Orange Light of Death!"

The first thing to do is to measure the voltage accross the mains filter
capacitor negative lead on meter to negative pin on the capacitor and positive to the positive pin on the cap and report back , set meter to DC. We need to know if the power supply won't start for example no start up voltage to the pwm chip or bad start up resistors etc.
Or is the fault some thing shorted on the secondary side which is disabling the psu from running.


Time for bed here bud , i guess its about mid afternoon where you are!

[Venomhatch]

Re: Another E470VLE with "Orange Light of Death!"

The first thing to do is to measure the voltage accross the mains filter
capacitor negative lead on meter to negative pin on the capacitor and positive to the positive pin on the cap and report back , set meter to DC.

I am going to bed now this is 1 am here and i am ready to hit the sack bud.

Ok I will report back when I have it. Thanks!

[Venomhatch]

Re: Another E470VLE with "Orange Light of Death!"

If the main cap is that first blue box next to the main fuse I get 113-114v dc through it.

[MisterD]

Re: Another E470VLE with "Orange Light of Death!"

Could you take your Meter and check the DC voltages on each wire connection on the top right 14 wire connector on your power supply board, I see the legend marked on the board just below the connector, Plug the TV In, Set your meter to DC Volts and hook the black negative lead to chassis ground and report the readings back here.

DIM __?__Volts
Status__?__Volts
On/Off__?__Volts without pressing the on/off button. __?__Volts while pressing on/off button
12 V__?__Volts
12V__?__Volts
GND
GND
GND
GND
+5V__?__Volts
+5V___?__Volts
+5V__?___Volts

Also check this thread and read all posts as you may possibly have an eeprom failure.

https://www.badcaps.net/forum/showth...hlight=E470VLE

[Venomhatch]

Re: Another E470VLE with "Orange Light of Death!"

Could you take your Meter and check the DC voltages on each wire connection on the top right 14 wire connector on your power supply board, I see the legend marked on the board just below the connector, Plug the TV In, Set your meter to DC Volts and hook the black negative lead to chassis ground and report the readings back here.

DIM __?__Volts
Status__?__Volts
On/Off__?__Volts without pressing the on/off button. __?__Volts while pressing on/off button
12 V__?__Volts
12V__?__Volts
GND
GND
GND
GND
+5V__?__Volts
+5V___?__Volts
+5V__?___Volts

Also check this thread and read all posts as you may possibly have an eeprom failure.

https://www.badcaps.net/forum/showth...hlight=E470VLE

DIM __0__Volts
Status__0__Volts
On/Off__0__Volts without pressing the on/off button. __0__Volts while pressing on/off button
12 V__0__Volts
12V__0__Volts
GND
GND
GND
GND
+5V__5__Volts
+5V___5__Volts
+5V__5___Volts

Thanks I looked at that thread I dont really know how to test eeprom to see if it is bad. I know that its not burnt up or leaking anything around it.

[MisterD]

Re: Another E470VLE with "Orange Light of Death!"

DIM __0__Volts
Status__0__Volts
On/Off__0__Volts without pressing the on/off button. __0__Volts while pressing on/off button
Standby____Volts ?
12 V__0__Volts
12V_____Volts ?
12V__0__Volts
GND
GND
GND
GND
+5V__5__Volts
+5V___5__Volts
+5V__5___Volts

Thanks I looked at that thread I dont really know how to test eeprom to see if it is bad. I know that its not burnt up or leaking anything around it.

I'm Sorry I missed the one marked Standby and you missed one of the 12 Volts,please report the voltages you find on these 2 where I put the new ? marks, also are there any labels on the Power Supply board right where the connector plugs in? the wires are blocking that view in the picture.

[Venomhatch]

Re: Another E470VLE with "Orange Light of Death!"

I'm Sorry I missed the one marked Standby and you missed one of the 12 Volts,please report the voltages you find on these 2 where I put the new ? marks, also are there any labels on the Power Supply board right where the connector plugs in? the wires are blocking that view in the picture.

If you see the little area with writing inside a box that is the key to the harness above.

DIM __0__Volts
Status__0__Volts
On/Off__0__Volts without pressing the on/off button. __0__Volts while pressing on/off button
Standby__0__Volts
12V__0__Volts
12V__0__Volts
12V__0__Volts
GND
GND
GND
GND
+5V__5__Volts
+5V___5__Volts
+5V__5___Volts

[MisterD]

Re: Another E470VLE with "Orange Light of Death!"

Also you say you saw this TV Powered on before you took it home, one other thing I would try is to take a hair dryer and heat the main board some just to see if it will power on after that. I see other threads saying they soldered connections on the main board and others saying they replaced the eeprom chip, I think it is U18 (has 8 legs) inside the white square on the main board.
Hopefully Budm will chime in and give his input.

[budm]

Re: Another E470VLE with "Orange Light of Death!"

Right now the main is not working, it is not sending out the Voltage to the standby pin to turn on the power supply, that is why you do not have the 12V. It is also not sending out the Backlights ON/OFF signal for turning on the backligts.
These Vizio E series seems to have lots of problem with EEPROM, it you search the forum, you will get lots of info on it.

[Venomhatch]

Re: Another E470VLE with "Orange Light of Death!"

Also you say you saw this TV Powered on before you took it home, one other thing I would try is to take a hair dryer and heat the main board some just to see if it will power on after that. I see other threads saying they soldered connections on the main board and others saying they replaced the eeprom chip, I think it is U18 (has 8 legs) inside the white square on the main board.
Hopefully Budm will chime in and give his input.

Ok thanks I will look into this I see they replied below yours. I will try the hair dryer thing tomorrow and if that doesnt do it then I will try the eeprom attempt probably tomorrow afternoon. Oh and yes it was on at one point. Would that be EEPROM then?

Right now the main is not working, it is not sending out the Voltage to the standby pin to turn on the power supply, that is why you do not have the 12V. It is also not sending out the Backlights ON/OFF signal for turning on the backligts.
These Vizio E series seems to have lots of problem with EEPROM, it you search the forum, you will get lots of info on it.

Ok I will do a search but if you have one particular thread you believe might be the most helpful that would be awesome if you could link me.

[MisterD]

Re: Another E470VLE with "Orange Light of Death!"

https://www.badcaps.net/forum/showth...t=vizio+eeprom

I'm not sure if heating up the main board will prove that the eeprom is the culprit, I would think that would point to a bad solder connection somewhere but I guess an internal part of the eeprom chip could open or close with the temperature differential, I'm just curious to see if it will get the set to power on by doing that since it was coming on prior to you taking it home but you also say the previous owner didn't get it repaired so maybe it is an intermittent problem.

[Venomhatch]

Re: Another E470VLE with "Orange Light of Death!"

https://www.badcaps.net/forum/showth...t=vizio+eeprom

Thanks so do you think if it works fine after warning it up it could be an EEPROM? Also in that thread is that a how to test it?

[Venomhatch]

Re: Another E470VLE with "Orange Light of Death!"

https://www.badcaps.net/forum/showth...t=vizio+eeprom

I'm not sure if heating up the main board will prove that the eeprom is the culprit, I would think that would point to a bad solder connection somewhere but I guess an internal part of the eeprom chip could open or close with the temperature differential, I'm just curious to see if it will get the set to power on by doing that since it was coming on prior to you taking it home but you also say the previous owner didn't get it repaired so maybe it is an intermittent problem.

Yeah worst case I may need a reliable source for a new PCB and Main Board.

I found some on eBay for $139 for the pair supposedly came from a cracked screen one. But you never know!

[MisterD]

Re: Another E470VLE with "Orange Light of Death!"

Thanks so do you think if it works fine after warning it up it could be an EEPROM? Also in that thread is that a how to test it?

No, I haven't really seen anyway to test it, I think since it's been found to be the problem in several Vizio's with Model number starting with "E" that when the symptoms like you have and the required voltages to turn on the Power Supply are not coming from the main board, it's usually a bad EEPROM, if you do order one make sure it is programmed. Here's a post from one of the other threads on the same model as yours.

Smile Re: Vizio E470VLE eeprom?
I have found this website selling TV parts and some Vizio firmware.
They all $25 each


http://www.ernestos-electronics.com/...vl-eeprom-fix/

I brought the E470VL eeprom and now my HDTV is working great, I check voltages and re-flow a good portion of the main board and I found nothing wrong. the replacement eeprom fix the problem.

ecking767

[MisterD]

Re: Another E470VLE with "Orange Light of Death!"

Yeah worst case I may need a reliable source for a new PCB and Main Board.

I found some on eBay for $139 for the pair supposedly came from a cracked screen one. But you never know!

I think your power supply board is good, the problem is the Main Board but could just be the EEPROM located on the Main Board. you can get the eeprom chip for only $ 25 already programmed. If you do get a new EEPROM, be sure to make sure it is placed correctly (notch in same direction as the old one was before removing it) before soldering it in.

[Venomhatch]

Re: Another E470VLE with "Orange Light of Death!"

No, I haven't really seen anyway to test it, I think since it's been found to be the problem in several Vizio's with Model number starting with "E" that when the symptoms like you have and the required voltages to turn on the Power Supply are not coming from the main board, it's usually a bad EEPROM, if you do order one make sure it is programmed. Here's a post from one of the other threads on the same model as yours.

Smile Re: Vizio E470VLE eeprom?
I have found this website selling TV parts and some Vizio firmware.
They all $25 each


http://www.ernestos-electronics.com/...le-eeprom-fix/

I brought the E470VL eeprom and now my HDTV is working great, I check voltages and re-flow a good portion of the main board and I found nothing wrong. the replacement eeprom fix the problem.

ecking767

Am I reading this right that sounds like the new EEPROM comes with the chip pre-programmed!

Nevermind I see what you just said.

[MisterD]

Re: Another E470VLE with "Orange Light of Death!"

Here's the exact replacement EEPROM for your Model and Main board.

http://www.ernestos-electronics.com/...le-eeprom-fix/

Bedtime, I'll be back on here tomorrow.