toshiba c660d laptop

[pcpro]

Hi all thought i may of found the fix in here but i didnt , i have a c660d that got a broken screen so i changed it the laptop works fine from an external monitor but will not light the screen i can see the toshiba sign but that is it i have had all the fuses checked and there fine also changed the screen cable if anyone has any ides what the problem may be cheers

[alihomee]

Re: toshiba c660d laptop

your screen is a lcd or led

[pcpro]

Re: toshiba c660d laptop

when i bought it off ebay it says lcd led on the site

[pcpro]

Re: toshiba c660d laptop

i have the screen working in another laptop so i know its not the screen

[sparker1]

Re: toshiba c660d laptop

i have the screen working in another laptop so i know its not the screen

If it is LCD have you tried a different inverter?

[alihomee]

Re: toshiba c660d laptop

if it is lcd then try to check 12v on inverter

[pcpro]

Re: toshiba c660d laptop

there is no inverter so must be led back lit

[spidey]

Re: toshiba c660d laptop

there are mainly 4 pins for your back light, +, gnd, on/off and brightness. find your mobo. schematic, check lcvd circuit, find the pins. if one of them is missing, find out why.

[pcpro]

Re: toshiba c660d laptop

sorry to sound thick is that on the mobo or the bk of the screen

[spleenharvester]

Re: toshiba c660d laptop

Can confirm the C660D is an LED backlit model. I repaired one of these not so long ago.

[ilampos]

Re: toshiba c660d laptop

i have the same problem with C660D and i tried everything...other screen...new cable screen...rework vga....clear cmos...nothing.i see this again in a lot toshiba laptop when broken screen change. please someone give an idea...

[scobie_21]

Re: toshiba c660d laptop

Read Spidey's comment above....find the schematics locate the pins see if the voltage is missing then find out why..

[mpikou]

Re: toshiba c660d laptop

Greetings,

I am facing the same problem here and I am not able to find the exact schematics for this mobo ( PWWBE LA-6846P REV:2.0 ).

I tried to solve it via LA-6842P Schematics but it seems to be different.

Has anyone located the fuse or the schematics?

Thanks in advance.

[bluestone]

Re: toshiba c660d laptop

Try this

[spleenharvester]

Re: toshiba c660d laptop

Greetings,

I am facing the same problem here and I am not able to find the exact schematics for this mobo ( PWWBE LA-6846P REV:2.0 ).

I tried to solve it via LA-6842P Schematics but it seems to be different.

Has anyone located the fuse or the schematics?

Thanks in advance.

You got any hi-res pics of the board? Some Toshiba boards I've repaired recently have had odd sort of fuses that look like resistors.

[mpikou]

Re: toshiba c660d laptop

Try this

This is exactly the same with the schematic I mentioned before. It did not help me much since it is for 6842p. Thanks a lot for your reply.

[mpikou]

Re: toshiba c660d laptop

You got any hi-res pics of the board? Some Toshiba boards I've repaired recently have had odd sort of fuses that look like resistors.

Hope these attachments help.
Thanks in advance.