HannSpree JT01-32E1-000G

[Mikeyboy2007]

Hi guys got a Hanspree model number as in title. no power whatsoever, opened the tv and every cap inside was bulging and some had popped so replaced all of them (in picture) placed the power board back in the tv, hooked it all back up, switched in plug and flicked the on/off switch and.......NOTHING

any ideas guys ?

[tom66]

Re: HannSpree JT01-32E1-000G

Well, you used a mix of crap and poor quality capacitors (apart from the Nichicons), though they would probably not cause a completely dead set, you really must use good capacitors or it will fail again in short order.

Common issue is described by budm: http://s807.photobucket.com/user/bud...art=all&page=1

[Mikeyboy2007]

Re: HannSpree JT01-32E1-000G

what can be the coz of the set though as its totaly dead, no power light or anything

[Alastair E]

Re: HannSpree JT01-32E1-000G

Any 5V and 3.3V rails coming out of PSU?

[Mikeyboy2007]

Re: HannSpree JT01-32E1-000G

Any 5V and 3.3V rails coming out of PSU?

all new to this mate can you explain what you mean thanks..

[Alastair E]

Re: HannSpree JT01-32E1-000G

Have you multimeter, can you check voltages coming out of PSU?

--At the moment, it could be literally anything without knowing if the small side of PSU is running or not!

You Have checked the PSU fuse --haven't you!

[Mikeyboy2007]

Re: HannSpree JT01-32E1-000G

no didnt check fuse :/ what fuse will it be, its covered in white tape where the glass normaly is but nothing written on it.

can i check fuse with multimeter

[selldoor]

Re: HannSpree JT01-32E1-000G

Is that picture after you replaced the caps or before. If it is before can you post a picture as it is now.

[Alastair E]

Re: HannSpree JT01-32E1-000G

Oh dear......

To be very honest, IF you don't know if you can check a fuse with a multimeter, I just don't know what to say--You HAVE to have some fault-finding knowledge to go further....

The fuse will have its ratings on its end-caps.

Contrary to popular belief, It AINT JUST CAPS that cause faults! I suspect (as is usual with a lot of this cheapo crap) that a cap has gone--and KILLED Other parts, and blown the mains-fuse!

Best way forward for you would be buy a second-hand or new PSU complete I think!

[Mikeyboy2007]

Re: HannSpree JT01-32E1-000G

Is that picture after you replaced the caps or before. If it is before can you post a picture as it is now.

picture after i replaced the caps.

[Mikeyboy2007]

Re: HannSpree JT01-32E1-000G

Oh dear......

To be very honest, IF you don't know if you can check a fuse with a multimeter, I just don't know what to say--You HAVE to have some fault-finding knowledge to go further....

The fuse will have its ratings on its end-caps.

Contrary to popular belief, It AINT JUST CAPS that cause faults! I suspect (as is usual with a lot of this cheapo crap) that a cap has gone--and KILLED Other parts, and blown the mains-fuse!

Best way forward for you would be buy a second-hand or new PSU complete I think!

sorry mate slow learner... put multimeter to 200Ω and tested fuse, was reading 00.4

[Alastair E]

Re: HannSpree JT01-32E1-000G

So--Fuse is OK.

What voltages are coming out of PSU?

Check them at the connector with all the grey cables.

Tell us what you find there.....

[selldoor]

Re: HannSpree JT01-32E1-000G

I was just trying to establish if you had put the caps in the right way round.
We has someone do a recap and wondered why it didnt work - didnt realise caps had + and - legs. Can you check.

[Mikeyboy2007]

Re: HannSpree JT01-32E1-000G

so i do it right mate that would be set to 200DC volts on the multimeter with black on chassis and red on pins

[tom66]

Re: HannSpree JT01-32E1-000G

20VDC for the lower voltages.

[selldoor]

Re: HannSpree JT01-32E1-000G

To test the volatages put your meter on vDC200 and put the black probe on earth/ground/ screw and test each pin with the red probe. Post results showing pin number
what it says on the board and what you get like:
Pin1 24v 23.78
pin2 pson 3.2
and so on

[Mikeyboy2007]

Re: HannSpree JT01-32E1-000G

To test the volatages put your meter on vDC200 and put the black probe on earth/ground/ screw and test each pin with the red probe. Post results showing pin number
what it says on the board and what you get like:
Pin1 24v 23.78
pin2 pson 3.2
and so on

theres absolutely no voltages on the board mate ?? any ideas

[Alastair E]

Re: HannSpree JT01-32E1-000G

Black to chassis/metal-frame of set, Red to check the supplies.

Best with any unknown voltage-measurements to start on a high volts range and then set meter lower if only a few volts are read.

Saves blowing up the meter, although a quality one will take it--cheapo ones dont, but why take the risk!

--(Summit the youngsters used to all these Digital Meters dont know about!--No offense Tom!)

My Multimeter is pushing 25 years old. It was one of the first Digital meters around, a Beckman Tech 310. Its Still perfect in function--although has many battle-scars, and will knock spots off all this modern multifunction-auto-ranging rubbish available now!

[Alastair E]

Re: HannSpree JT01-32E1-000G

theres absolutely no voltages on the board mate ?? any ideas

Small PSU not functioning.
(There's two distinct supplies on these things. One supplies the processor and low volts stuff, the other, the lamps and higher power stuff....)

Plasmas are even worse! Up to 5 separate supplies from different sections--5 PSU's on the same board in effect.

I suspect your PSU has a faulty chip or other semi that is supposed to supply the small-side of things. Without those small supplies--its as dead as doornail.

Should have a 5V at the very least somewhere to the control-board.

Best way forward--Replace psu board, as I said--Could be anything in that small supply section.

[selldoor]

Re: HannSpree JT01-32E1-000G

Ok now for the big stuff. Meter on 600vDC put black probe on negative leg and red probe
on the positive leg - VERY Carefully.
Did you check you got the caps the right way round?