Sharp Lc37sb24u No Picture/audio

[Dustin862]

Re: Sharp Lc37sb24u No Picture/audio

I think that would be correct. The monitor processor is hooked into the power LEDs typically. You can follow it on a schematic, if you have one available.

Man I wish I had a simplified schematic I downloaded the service repair manual for this model tv to decipher the blinking led light code and if I read it correctly then the power led light flashing 3 times should mean either communication failure with Main CPU or monitor microprocessor's reception failure. So the way I figure it is if I just replace the main board with a new one then it should fix the issue would I be correct in thinking that?

My friend said it went out and was blinking that way and after he bought a new he said if I could figure out what was wrong with this one he would pay for the new parts and it would be mine lol.

[Kilroys]

Re: Sharp Lc37sb24u No Picture/audio

This is taken from a 37D44 manual.

Begin first with holding down the “VOL (-)” and “INPUT” keys on the set at once,
plug in the AC power cord to turn on the power.
If you got a picture then hold down the “VOL (-)” and “P(down)” keys on the set at once.
Multiple lines of orange characters appearing on the screen indicate
that the set is now in the adjustment Process mode.

The lamp holder could sometimes make bad contact with the lamp
make a lamp error. After 5 times you couldnt start the tv.

You could of course make it the hard way
Look up BD9883FV on the inverter,
shorten pin 12 to the ground.
This will force the inverter to start and
you could see all the lamps light.

[Dustin862]

Re: Sharp Lc37sb24u No Picture/audio

This is taken from a 37D44 manual.

Begin first with holding down the “VOL (-)” and “INPUT” keys on the set at once,
plug in the AC power cord to turn on the power.
If you got a picture then hold down the “VOL (-)” and “P(down)” keys on the set at once.
Multiple lines of orange characters appearing on the screen indicate
that the set is now in the adjustment Process mode.

The lamp holder could sometimes make bad contact with the lamp
make a lamp error. After 5 times you couldnt start the tv.

You could of course make it the hard way
Look up BD9883FV on the inverter,
shorten pin 12 to the ground.
This will force the inverter to start and
you could see all the lamps light.

Okay now I'm confused... Was this meant to be a reply to my last post or to another persons post?

[Kilroys]

Re: Sharp Lc37sb24u No Picture/audio

Sorry about the confusing.
When I read post #2 that sb24 look alike d44
and the inverter board is looking the same as d44
and that I have had problems with 37d44.
Then why not try the tips.

[Dustin862]

Re: Sharp Lc37sb24u No Picture/audio

Okay lol you wouldn't happen to know where I can find the upgrades/updates for the The main software, the monitor microprocessor software, and the Panel timing controller software? all I can find is a firmware upgrade/update...

[Dustin862]

Re: Sharp Lc37sb24u No Picture/audio

or is the software updates included in the the firmware update?

[Dustin862]

Re: Sharp Lc37sb24u No Picture/audio

This is taken from a 37D44 manual.

Begin first with holding down the “VOL (-)” and “INPUT” keys on the set at once,
plug in the AC power cord to turn on the power.
If you got a picture then hold down the “VOL (-)” and “P(down)” keys on the set at once.
Multiple lines of orange characters appearing on the screen indicate
that the set is now in the adjustment Process mode.

This not working for me I have followed these steps perfectly I cannot enter adjustment process mode

[Mike Jenk]

Re: Sharp Lc37sb24u No Picture/audio

or is the software updates included in the the firmware update?

If you go to Sharp web site and put your model # in there is a update for your model, no software just flashes. I have 2 of these and after fixing bulbs I love them.