Lg 37lf66-ze

[ed1808]

power supply pn EAX31845201/13

tv led flashes 5 times and powers up eventualy

hi guys ok im trying to understand the measurments obtained via the esr60
just so i dont keep boring you all with mindless post regarding dead or failing caps once again i have ordered a kit which should fix this problem for this cheap tv. but as i hope you understand the need to the readings im obtaining are a neccesity.

i have added the readings list of all the caps i have tested (in curcuit/2 out) via the esr60

so any help with the tollerence of both esr and capacitance value of these readings would be appreciated.

please excuse my spelling and grammer in general lol

if you need the manufacturer and code of each cap thats no problem but im sure in all you guys can tell a bad cap via its reading and thats where i need to be in general

c223 as fitted 680uf 35v in circuit leaky 0.00 ohm cap taken out reading 722uf 0.02ohm

C221 as fitted 680uf 35v in circuit leaky 0.00 ohm
C222 as fitted 680uf 35v in circuit leaky 0.00 ohm
C221 as fitted 680uf 35v in circuit leaky 0.00 ohm
C232 as fitted 680uf 35v in circuit leaky 0.00 ohm
C203 as fitted 470uf 35v in circuit leaky 0.22 ohm cap taken out reading 427uf 0.26ohm

C207 as fitted 1000uf 35v 1470uf 0.00ohm
C208 as fitted 470uf 35v 1770uf 0.14ohm
C212 as fitted 2200uf 25v 2556uf 0.02ohm
C216 as fitted 2200uf 16v 2549uf 0.00ohm
C213 as fitted 470uf 25v 2502uf 0.08ohm
C225 as fitted 2200uf 10v 3013uf 0.03ohm
C205 as fitted 3300uf 10v 7829uf 0.01ohm
C204 as fitted 3300uf 10v in circuit leaky 0.00ohm

many thanks in advance

[selldoor]

Re: Lg 37lf66-ze

Not sure what the question is - if you have ordered a cap kit to fix it why
test the caps? does leaky mean its leaking electrolyte if so dispose of it at once.

[ed1808]

Re: Lg 37lf66-ze

no sorry none of the caps are leaking to look at or bulging.

just trying to understand the readings the esr60 is giving me

kits are fine in the long run guess for instance c205 is reading 7829uf which is huge yet is only 0.01 ohms and the top 4 are reading in curcuit leaky yet on removng 1 i get a normalish reading.

maybe its just me but as i said im just trying to interprit the readings im getting so as to understand the values

[cliff_hootarski]

Re: Lg 37lf66-ze

You must test these caps out of circuit to get an accurate reading. Some of those caps could be in parallel with each other, so one cap could be good and the other bad.
I have the ESR70 and when ever I test "in circuit" and get a bad reading (either capacitance or ESR), I pull the cap and test "out of circuit".

[ed1808]

Re: Lg 37lf66-ze

many thanks cliff purchased the esr60 to save time really but get your point will pull all the caps and retest

[ed1808]

Re: Lg 37lf66-ze

ok chaps replaced all the bad caps on the power supply and tested voltages all seemed good tv powered up for around 30 mins lol then the screen started flickering... so tried all inputs al are the same but i now have no sound via the hdmi either any ideas please many thanks