Re: Scepter X32 LCD TV that cannot power up
There are five 1117B regulators. The voltage readings stay unchanged in both conditions working or not working. When not working there is no 12V to T-CON board. I think it's the main controller board that causing the problem.
tzantzai
New Member
Last Activity: 11-19-2014, 09:02 PM
Joined: 11-18-2014
Location: Houston, TX
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Re: Scepter X32 LCD TV that cannot power up
Does anybody have the el. schematic for this TV: Sceptre-X32?Leave a comment:
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Re: Scepter X32 LCD TV that cannot power up
Here is the back side of the TV, I posted the pictures of the Power Supply and Controller in Post #3,4
There is no cable between T-CON board and Inverter. There is cable between T-CON and controller....Last edited by tzantzai; 11-18-2014, 08:07 PM.Leave a comment:
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Re: Scepter X32 LCD TV that cannot power up
No, All voltages 24V(22.6V), 12V(12.4V), 5V(5.3V) and Standby Voltage(5.0V always presented) are coming up after pressing power knob. The only difference is BL_ON(rather labeled BK_ON). When BK_ON=5V the TV power up OK. When BK_ON=0V TV doesn't power up. BK_ON comes from controller board.Leave a comment:
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Re: Scepter X32 LCD TV that cannot power up
Attached are pictures of Power Brd and Controller Brd. The hair dryer didn't help....Leave a comment:
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Re: Sceptre X32 Power Supply Diagnosis
Posted in errorLeave a comment:
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Scepter X32 LCD TV that cannot power up
Hi all. I have Scepter X32 LCD TV that cannot power up. When I press the power knob the pwr LED turns blue but the screen is dark and no sound. Occasionally after 5, 6 power cord disconnects and reties it will power up normally. I measured the voltages on power supply board after power up: 24VDC = 22.6V, 12VDC = 12.4V, 5VDC = 5.3V. When the TV powers up OK: BL_ON = 5.0V. When the TV cannot power up BL_ON = 0V. Any ideas what's wrong? Thanks. -
Re: New Members - please post your introductions here
Hi, my name is TJ and I do some electronics repair just for fun. I dont make the living out of this. Mostly I repaire my home electronics when someting breaks. Wright now I have problem wtth my Sceptre x32 LCD tv, which I bought from Walmart.Leave a comment:
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Re: Sceptre X32 Power Supply Diagnosis
Hi all. I have Scepter X32 LCD TV that cannot power up. When I press the power knob the pwr LED turns blue but the screen is dark and no sound. Occasionally after 5, 6 power cord disconnects and reties it will power up normally. I measured the voltages on power supply board after power up: 24VDC = 22.6V, 12VDC = 12.4V, 5VDC = 5.3V. When the TV powers up OK: BL_ON = 5.0V. When the TV cannot power up BL_ON = 0V. Any ideas what’s wrong? Thanks.Leave a comment:
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