The caps look good... The tv shuts off if I press any of the buttons located on top of the tv. If I use remote it will not turn off. Any ideas? Thanks
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Sounds like a faulty touch panel on top of TV. Advise replacement. -
Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Disconnect the cable that goes to the push button assembly and see if the remote can control all the functionsLast edited by budm; 05-16-2014, 07:01 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
I didn't word it correctly. I meant that when using the remote it works great. It's just when pressing any of the buttons on the tv is where it turns off. I saw Shop Jimmy has new keyboard controllers for $9.33
The tv owner also mentioned that on some channels... usually the lower ones.. will not have volume.
Thanks for the repliesComment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
OK then, you may have bad switch assembly then.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Where would the switch assembly be located?Comment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Are you not talking about the switch assembly on the top RIGHT of the TV?
User manual:
http://s3.amazonaws.com/szmanuals/16...45ee373745c145
Page 9.
You may be able to dis-assemble and clean the contacts.Last edited by budm; 05-16-2014, 07:44 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Yes... It's on the top right. It's the same thing as the keyboard assembly right?Comment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Yes, the board with switches.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Great... I will take it out & use alcohol to clean contacts.
Do you have Paypal for donations? I use Pinside Forum..... a pinball website & there are a few people that take donations who really go out of their way to help others.... Like yourselfComment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Do I just spray some contact cleaner where the contacts are located & press buttons several times to clean this?Comment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
post a foto of the button panel - some types of button are sealed.Comment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Thanks for your help.. It works!!
Budm... pm your PayPal
. I want to send a donation .Comment
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Re: Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV
Glad to hear it was just dirty switches.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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I have a Sharp LC-40LE431U TV. The symptoms are when plugged in, the control buttons on the right side panel don't seem to want to work correctly. I get a solid red light. But when I press the Power button, it does not power on immediately. I have to keep pressing ALL the side buttons randomly until finally the solid green light is on. Then when pressing each additional button, they do not always respond correctly, if at all. Pressing the Volume button might bring up the Menu, or vise versa. Even if I can get the Menu screen to come up and scroll through the selections, I still cannot select any... -
Hi everyone is it possible to change or use a different IR SENSOR / CONTROL BUTTONS BOARD on a tv?
exp: from a Philips to a Samsung or any
if it breaks or if there is some odd brand or if universal remote control would not work -
Hi all, I just want to share the repair of my 60PK550-UA TV set.
The TV set was powering on, just no image. After verification, nothing wrong on the YSus or ZSus boards. Nothing wrong on the main board either.
But I noticed that the LED was not flashing on the Logic Control Board. This is an EBR63450301. The LED is supposed to flash even with all the flat cables disconnected, with only the power cable attached.
All the voltages measured at the electrolytic capacitors on the board were good. From top left to bottom right:
C57: 3.30V
C61:...07-20-2023, 12:38 AM -
Hi friends,
TV has stuck at - as I googled the term - color test mode. Slowly flashing colors white, red, green, blue, black, over and over again. I tried some hints from internet, like pressing some remote buttons, but nothing worked. I also tried factory reset for Sharp TVs => "while holding vol– & input buttons on tv plug in set when “k” appears push vol– & chan- " , but TV doesn't even start during buttons pressed.
So I decided to flash new firmware to SPI ROM. What do you say, would it help? If so, where can I find some dump? I was unable to find... -
Trying to understand which properties of circuit affect triac phase range, is it possible to control near whole period, or it have some limitations - on net found a couple circuit, that claims almost full control, but in the past I build some simple circuit and remember that it do only half of control over triac?...
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