how to remove protection of led on sharp lc32le600e

[barby16_06]

hi.
need some help
i have a sharp lc32le600e that it's shut down by itself after 5 seconds
i try to reset error in service menu by following vol- + input buttons to enter to service menu, then press vol- + ch - and try both error reset and factory init.
in both cases tv open normal for abaout 5 second and then it's shutting down with red led flash.
i open the display and check all 8 bars with leds and they are all good
if i lett tv in service mode stay on until i shut it down from ac plug, but can't be used becouse it remain a letter K on screen.

the only thing that remain is to deactivate protection from psu.
i upload runtka619wjqa scheme
if somebody can tell me what i must to remove or short on scheme.
many thanks.

[Moreno83]

Re: how to remove protection of led on sharp lc32le600e

You could try to reload the firmware using a usb stick and see if it goes away. Some sharp models have problems with the firmware.

[barby16_06]

Re: how to remove protection of led on sharp lc32le600e

i made the update allready to latest version.
with official version from sharp site

[budm]

Re: how to remove protection of led on sharp lc32le600e

What is the error code? It has more than one protection mode.

[barby16_06]

Re: how to remove protection of led on sharp lc32le600e

it's 1b
error from led acording to troubleshoting manual from sharp

[budm]

Re: how to remove protection of led on sharp lc32le600e

Please up load the service manual so we are using the same information. I have no idea what 1b.Sharp uses the error code based on the blinking LEDs combination.

[budm]

Re: how to remove protection of led on sharp lc32le600e

Look the schematic, what DCV do you have on that ERROR pin? What does it show in your service manual as to what the ERROR pin Voltage will be in normal condition. Is it logic High = Normal, or Logic high = abnormal condition?

[budm]

Re: how to remove protection of led on sharp lc32le600e

Is your power supply/led driver board actually 'runtka619wjqa'?

[budm]

Re: how to remove protection of led on sharp lc32le600e

BTW, we do need good clear pictures of the whole backside of the TV showing all the boards and also the straight shot picture of the whole power supply board.

[R_J]

Re: how to remove protection of led on sharp lc32le600e

Could be one or two led's shorted, which could be hard to notice without disasembling the panel, but will increase the current enough to trip the short detect circuit
Disabling the error line is like puting a sticker over the check engine light

[peter djuh]

Re: how to remove protection of led on sharp lc32le600e

you could try connecting the error pin to ground

[peter djuh]

Re: how to remove protection of led on sharp lc32le600e

it worked for me

[barby16_06]

Re: how to remove protection of led on sharp lc32le600e

all leds are good
i say that i disasembling the pannel and checked all leds.
power board is RUNTKA619WJQZ
in a few hours i will upload photos with all boards

with pannel taked of and power on the tv in service mode all leds are working fine

[barby16_06]

Re: how to remove protection of led on sharp lc32le600e

also the service manual