Jvc lt32a61sj/bj audio but no picture

[Scenic]

Re: Jvc lt32a61sj/bj audio but no picture

I dont think we can do much until it is established if it has the TRAP switch.

It doesn't appear to have any HDMI ports, so it's probably pre-boobietrap era..

[MISTERG]

Re: Jvc lt32a61sj/bj audio but no picture

The picture is taken frm the net, not me measuring ,just to show the eqpmnt as i was out at the office and not at home.

the set has only a dvi port no hdmi existing

i tested the PSW board with the multimeter dial set at 200V DC

[MISTERG]

Re: Jvc lt32a61sj/bj audio but no picture

continued

I followed guidance for measuring from ehow com
http://www.ehow.com/how_8490454_test...ssipation.html

now i will try to desolder the forth green cap that showed a zero volt value and place the new one.. hope i am lucky

Thanks for all the info.

[MISTERG]

Re: Jvc lt32a61sj/bj audio but no picture

Hi all,
After a "while" i decided to pick it up from the last step i did.I have changed 4 capacitors on the psw. It didn;t help. I checked the voltage output from the psw it reeds ok (as indicated on the psw).
(1)I haven't tested the resistors yet and the diodes on the psw, i will do it today. (2)I also saw in an other link that little triangle fuses may be the problem on the main board?..
So do you think that last two actions will help?

[MISTERG]

Re: Jvc lt32a61sj/bj audio but no picture

i removed the pwb and i noticed that smthng is damaged in Q9 >Q9 T0507-00009A TRANSISTOR could that be the troublemaker to the set? to be frank i dont know what a transistor actually does.
also i noticed one capacitor a bit loose and i am thinking to resolder it

[vinceroger69]

Re: Jvc lt32a61sj/bj audio but no picture

Q9defently needs replacing imo. C8 also looks like its got hot? or just the pic

[MISTERG]

Re: Jvc lt32a61sj/bj audio but no picture

Thanks for the help! C8 seems hot , you have an eye like a hawk , i had to zoom twice to see it. I called the local service store and gave them the Q9 T0507-00009A TRANSISTOR detail, but they reverted that this is the manufacturer's id of the spare part and not its "commercial" name/type i.e. npn etc .Does anyone know what is the commercial name/type , as JVC service in Greece stopped its operation a couple of years ago, so i am not hoping for an original part. I assume they will say the same for the C8.

I attach the service manual/spare parts if you can see smthng more

Again Many thanks for the info provided in the forum.

p.s. With the information given in this forum, I had restored successfully my pc motherboard (bad cap, exploded top).

[MISTERG]

Re: Jvc lt32a61sj/bj audio but no picture

Keep posting to myself. I am determined to resolve this.

Found with a lot of internet search that T0507-00009A TRANSISTOR has most probably the commercial name as the attached file. I made an order on this , it will come within the next 15 days..hope it works.

But with C8 the manufacturer says it is a capacitor C8 T2203-FC104E C CAPACITOR 0.1uF 50V K?!!! Could that be, with that shape? or is it also a transistor? Btw there is no such capacitor ( i mean the shape) in the electronics shop.

Please help.