Toshiba 30HF84

[luke9511]

Re: Toshiba 30HF84

ok i went online and looked up how to test these transistors with my meter and the HOT tested fine so thats not it, however i tested Q504 which im not sure what it is yet, but anyway i tested one leg and got a reading and then i tested the other and didnt get anything at all, im thinking whatever Q504 is, its bad and needs to be replaced, now i just need to find a diagram and find out what it is

[luke9511]

Re: Toshiba 30HF84

for some reason i cannot edit my post above, but i desolder the part and using a magnifying glass i got the following off of it

ST w3s428

p15nk507

[R_J]

Re: Toshiba 30HF84

Q504 is a fet in the power supply, its not bad, if it was the tv would not come on at all. You either have a weak capacitor in the power supply or in the deflection circuit.

[luke9511]

Re: Toshiba 30HF84

something around where its at is causing that sound and this is the only thing that i can think of, im going to replace it anyway as i messed it up some trying to remove it, i will also add some pictures of the board

[luke9511]

Re: Toshiba 30HF84

does anyone know of a alternative to this part?

AE004387

[R_J]

Re: Toshiba 30HF84

Stp15nk50zfp
Digikey 497-12055-5-ND
If you type that toshiba part number into google you will get the original number of the fet. now search for the original number and find a source. I found it at digikey and others.

[luke9511]

Re: Toshiba 30HF84

Stp15nk50zfp
Digikey 497-12055-5-ND
If you type that toshiba part number into google you will get the original number of the fet. now search for the original number and find a source. I found it at digikey and others.

thank you very very much, i did try searching but i could not find anything i may have been looking in the wrong places, but i have ordered one and it did arrive but i have not soldered it in yet, once some other stuff comes in the mail i will do it then and report back

[luke9511]

Re: Toshiba 30HF84

ok sorry for not posting back, i got the part a while back and put it in and that was not it, if anyone has any other ideas please let me know

[kasfamily]

Re: Toshiba 30HF84

Show photo main board top and bottom

[luke9511]

Re: Toshiba 30HF84

Show photo main board top and bottom

there ya go let me know if you want any close ups

[kasfamily]

Re: Toshiba 30HF84

Please foto this place and the name of this chip

[luke9511]

Re: Toshiba 30HF84

Please foto this place and the name of this chip

here ya go it is a Toshiba TA1360 ANG
JAPAN 440KA1

[kasfamily]

Re: Toshiba 30HF84

Need soldered well X603

[luke9511]

Re: Toshiba 30HF84

Need soldered well X603

solder joints are fine, but here is the part from the service manual and the part number from the part itself

X603 AE004348 1002R01502 CERAMIC OSCILLATOR CSBLA503KECZF30-B0

B503 F 30

[kasfamily]

Re: Toshiba 30HF84

I know. Still need to solder

[luke9511]

Re: Toshiba 30HF84

I know. Still need to solder

you mean replace it with a new one or just resolder the solder joints?

[kasfamily]

Re: Toshiba 30HF84

Usually changes

[luke9511]

Re: Toshiba 30HF84

Usually changes

im going to guess and say replace it only issue is I can't find a replacement

[kasfamily]

Re: Toshiba 30HF84

http://www.alibaba.com/trade/search?...hText=ztb503f2

[luke9511]

Re: Toshiba 30HF84

nvm im stupid