Re: Sony kd 55xf7596 fading picture
It doesn't have side tabs matee
wreksta
Badcaps Veteran
Last Activity: 11-09-2021, 03:09 PM
Joined: 08-09-2013
Location: tyne and wear
-
Sony kd 55xf7596 fading picture
Hi all got a problem with 55 Sony led. Tv
Model is kd 55xf7596 the TV turns on to a full screen
Then after 30 seconds or so the picture fades
Away like a dissolving effect back-light still lit
I've removed left side tcon flex ribbon and screen stays normal but flickers when the tcon heats up
So first port of call was to change tcon
So after. Replacement the TV does the same
I must stress there is no water damage or panel being banged at all this fault just devoloped
Any ideas please -
toshiba 40l1333db can i use this power board
hello can any help me can i use this power supply board with the above model tv
17ips20 barcode 23106046 27043959 -
Re: 55lm670t backligth and sound no picture
please explain mate
is it done for or could it be repairableLeave a comment:
-
Re: 55lm670t backligth and sound no picture
the screen what is black grey with nats that fade is norm running two ribbons connected...Leave a comment:
-
Re: 55lm670t backligth and sound no picture
caps test fine on driver boardLeave a comment:
-
Re: 55lm670t backligth and sound no picture
dont matter magnified board they are resistors...Leave a comment:
-
Re: 55lm670t backligth and sound no picture
there 1 micro cap there mate only component there...Leave a comment:
-
Re: 55lm670t backligth and sound no picture
tb bonds?...Leave a comment:
-
Re: 55lm670t backligth and sound no picture
no change mate...Leave a comment:
-
Re: 55lm670t backligth and sound no picture
these components make meter go postal...Leave a comment:
-
Re: 55lm670t backligth and sound no picture
there is a couple of very small caps on driver board both sides when tested for continuity they are on there own every 3rd of the driver board
there make meter beep rapidlyLeave a comment:
-
Re: 55lm670t backligth and sound no picture
no water damage anywhere checked main tab bonds and driver boards
unless this has side driver tabs ??
picture below off 3 different phases
both connected
one connected
other connected
...Leave a comment:
-
Re: 55lm670t backligth and sound no picture
post updatedLeave a comment:
-
55lm670t backligth and sound no picture
hi been a while got this set in wondered if anyone can help
the tv displays no picture other than left side blank right side with a bar that fades
tries disconnection both ribbon cables to panel and tv displays blank full screen
right side connected only displays lines that fade
left side connected only displays half white and lines that fade on right side
whats the intial diagnosis ?? hoping main board not panel
main board is eax64307906
this set has no tcon board
...Last edited by wreksta; 08-21-2019, 02:17 PM. -
Re: 55ln620v LG flash then no backlight
bottom 3 rows flash top 4 don't
I've checked all condunity for all connectors and test good
could it still be faulty?Leave a comment:
-
Re: 55ln620v LG flash then no backlight
yes it's LG 55la620vLeave a comment:
-
Re: 55ln620v LG flash then no backlight
which connectors mate thanksLeave a comment:
-
Re: 55ln620v LG flash then no backlight
hi there just an update
led+ volts shoot to 125v dropping to 82
led- volts shoot to 42v dropping to 5v
same for the other 2 + /-
both same on two power boards
all leds light with tester even individualyLeave a comment:
-
Re: 55ln620v LG flash then no backlight
hi all I've tested all the leds I've even swapped power supply with a known working one and logo flashes then no light so I'm thinking main board
is there a fix for the main board
thanks I'll upload voltages soonLeave a comment:
No activity results to display
Leave a comment: