Thanks for your answer.I just wanted to know if there was an easy way to fix it
but now I know its not that easy.
...
ruben53
Member
Last Activity: 02-01-2020, 06:28 AM
Joined: 09-25-2015
Location: Ceiba,PR
-
Re: Sylvania LC220SS1 bad inverter
Thanks for your answer.I just wanted to know if there was an easy way to fix it
but now I know its not that easy....
-
Sylvania LC220SS1 bad inverter
Hi, my tv Sylvania LC220SS1 had standby red light on when try to turn it on
the green light blinks 21 times and then the red stanby light.I replaced the
power supply that also has the backlight inverter and the tv works normal.
I want to know if somebody can guide me to repair the board if it is possible.
I am not expert technician but I have repaired some tvs as a hobby.
Thanks for any help.... -
Re: Vizio SV320XVT no video no sound
This inverter board was difficult to find,in every place was sold out,finnaly found
one and ordered it.Lets see when it arrives and install it.
I want to thanks all of you that helped me in this project.
:
Beers for everyone....
Leave a comment:
-
Re: Vizio SV320XVT no video no sound
Attached picture of chip 0Z9966...Leave a comment:
-
Re: Vizio SV320XVT no video no sound
OK to take a clear picture have to wait until tomorrow,so I will do it tomorrow.
Thanks for your help....Leave a comment:
-
Re: Vizio SV320XVT no video no sound
That's correct I can see light at each connection and through a hole in center of inverter and all corners of panel and all holes of the back of panel....Leave a comment:
-
Re: Vizio SV320XVT no video no sound
Checking from the back of tv I see a lot of lamps on but there are some under the boards so is not easy to know if there is one lamp off....Leave a comment:
-
Re: Vizio SV320XVT no video no sound
I think all the lamps turned on you can watch tv normally....Leave a comment:
-
Re: Vizio SV320XVT no video no sound
It took me time to figure out how to short pin 15 of the 0Z9966 without touch
any other pins,finaly I did it and backlights come on and able to watch tv with
sound as long as its shorted if I remove the short backlights turn off and only
get sound no video.
So what that means?...Leave a comment:
-
Re: Vizio SV320XVT no video no sound
I heated all solder joints of both transformers of the inverter board but still same problem....Leave a comment:
-
Re: Vizio SV320XVT no video no sound
I turned on again and this time the tv turned on with nice video and sound.
when checked the status pad was 0v and trying to check other volts the backlights went off and the Status voltage again is 5v.
That means that inverter board is the problem?...Leave a comment:
-
Re: Vizio SV320XVT no video no sound
Attached the picture of the sticker on LCD panel...Leave a comment:
-
Re: Vizio SV320XVT no video no sound
IC number---0Z9966SN...Leave a comment:
-
Re: Vizio SV320XVT no video no sound
VBR-A---0v
ON-OFF--1.6v
VBR-B---3.2v
Status---5.4v...Leave a comment:
-
Re: Vizio SV320XVT no video no sound
Yes it has 24.4v on both sides and on both capacitors.It is 12A/65V
Attached another picture...Leave a comment:
-
Re: Vizio SV320XVT no video no sound
Attached picture of the inverter board....Leave a comment:
-
Re: Vizio SV320XVT no video no sound
OK tomorrow I will take pictures of the inverter board.
I checked on the back of the tv in dark room and cant see any lights....Leave a comment:
-
Re: Vizio SV320XVT no video no sound
Update,I did the test with a dark room and a flashlight and can see it says
"no signal" so that means the the backlights are on,wright?
If the backlights are on,that means the backlight inverter board is OK ?...Leave a comment:
-
Re: Vizio SV320XVT no video no sound
Ok I removed the metal shield and saw only one fuse is OK don't see anything
burned.Checked the voltage at the 2 capacitors is 24.4v.
I don't know how to check if backlights are on,only see the black screen.
When hit power button the screen turns on and show the vizio logo and then
black screen....Leave a comment:
-
Re: Vizio SV320XVT no video no sound
You are right the battery of my DMM was low,changed the battery and now readings are 11.8v on 12v pin, 3.2v on pin 1 Pson,5.15v on 5vSB,3.2v on Pin12
and 3.2v on Pin 13 and 5.4v on Pin 14.
The power supply is 0500-0507-0690.
Checked on CN4 of the inverter board and has this readings:
Pin 1,2,3,4,5=24v------reading is 23.4v
Pin 6,7,8,9,10= SGND1
Pin 11=A------reading is 3.2v
Pin 12=B------reading is 3.2v
Pin 12=C------reading is 5.4v
By the way...Leave a comment:
No activity results to display
Leave a comment: