Sharp 46D64u Blinking power light

[whatusername]

Hi guys i picked up this tv that i know i paid way too much for but now its slim pickings since everyone seems to have gotten into tv repair. Any Who this tv has physical damage to the right side bottom of bezel in the form of a hole and split indicating its been dropped on that side and also did not come with a stand. the screen appears to be ok but when i power it up i get a flashing green power light 1 flash every second. if i go to service mode i get a quick flash od the screen where i can see hdmi on the top right then it goes black again with steady light.. i read all the threads on here referring to sharp tv's and am thinking since it dropped it has a few bad ccfl's i do see a couple dim lines on the screen when the quick flash happens. but there was another member who saw the same thing and his issue was inverter boards. so im at a 50/50 cross road and would appreciate some help in diagnosing this.. Thanks in Advanced

[kasfamily]

Re: Sharp 46D64u Blinking power light

use CCFL tester http://www.youtube.com/watch?v=sfVkRiDGewA

[whatusername]

Re: Sharp 46D64u Blinking power light

i dont have a tester all i have is a dmm

[kasfamily]

Re: Sharp 46D64u Blinking power light

what is dmm

[whatusername]

Re: Sharp 46D64u Blinking power light

a DMM is a digital multi meter

Here are a few pics it is very hard to catch the screen on when trying to take the pic

[kasfamily]

Re: Sharp 46D64u Blinking power light

please photo near the connectors LA/LB/LC2

[budm]

Re: Sharp 46D64u Blinking power light

You may have broken lamps. If you roll or move the TV from side to side, do you hear anything rolling inside the panel?

[whatusername]

Re: Sharp 46D64u Blinking power light

You may have broken lamps. If you roll or move the TV from side to side, do you hear anything rolling inside the panel?

no i dont hear anything rolling inside ...

[whatusername]

Re: Sharp 46D64u Blinking power light

well opened it up and found 4 broken ccfl bulbs.. where the hell am i going to find these things at????? i have no clue

[budm]

Re: Sharp 46D64u Blinking power light

I see lots of people here use:
http://www.ccflwarehouse.com/

[whatusername]

Re: Sharp 46D64u Blinking power light

thanks for that bud but how am i supposed to know how many mm thick they are? apparently they come in different thickness and i think its something like 1033mm long

[budm]

Re: Sharp 46D64u Blinking power light

You mean the diameter. You need one of those digital caliber, that is what I use, good tools to have for checking cap dimension also.
http://www.amazon.com/b?node=2476630011

[whatusername]

Re: Sharp 46D64u Blinking power light

lol i actually have 1 of those buried somewhere in my trunk.. the guy i got the tv from has another one same model with a smashed screen on the right side. im sure it probably has a few broken bulbs too but do u think there may be some good ones? he wants same price $50.00 and will not budge from it

[budm]

Re: Sharp 46D64u Blinking power light

I am sure there will some good one in there, plus you will have spare boards, so for $50 is not too bad.

[whatusername]

Re: Sharp 46D64u Blinking power light

yea i bought one about 8 months ago same model cracked screen took boards and trashed the rest kicking myself now lol also found out the boards are different in both sets.. and reading the threads here theres also another set of boards so i count 3 different board combos now for the same tv smh

[whatusername]

Re: Sharp 46D64u Blinking power light

anyway i will contact him Tuesday when im off and see if he still has it.. i will update as i go along.. thanks bud.. good night

[tibimakai]

Re: Sharp 46D64u Blinking power light

The 46" it's much simpler than my 65". I had the same symptom as you, but I had the master boards replaced and it's working now, but I still have a weird issue with it. It looks like every second tube is not lit up. I can see brighter lines where the tubes are on. I will have to take it apart, to see exactly what is going on, but it is so big and heavy(...and I'm to lazy).

[whatusername]

Re: Sharp 46D64u Blinking power light

It looks like every second tube is not lit up. I can see brighter lines where the tubes are on. I will have to take it apart, to see exactly what is going on, but it is so big and heavy(...and I'm to lazy).

so are you telling me it should have still lit up with bad tubes? i mean mine were broke not just bad. i was under the assumption if u had any bad ccfl's it would go into protect mode like its doing

[tibimakai]

Re: Sharp 46D64u Blinking power light

We have different situations. You should get those tubes and see what happens after that.

[whatusername]

Re: Sharp 46D64u Blinking power light

Update: so i picked up the other 46 with smashed screen and found 3 broken bulbs the rest lit up for the half second... i then install 4 of those bulbs into the 46 im repairing and BOOM the tv powered right up. this made me happy.. and Budm u were correct both tv's have the exact same boards in them so now i have all boards as spares and 15 bulbs..
this is now my personal tv and will be replacing my lc42d64u