Re: sharp aquos lc-52xl2e wont power on
thats right bud PS_ON 02.67 is present when the tv is first plugged in
MrJIM
Member
Last Activity: 11-03-2020, 12:57 PM
Joined: 10-30-2017
Location: ESSEX
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Re: sharp aquos lc-52xl2e wont power on
I should add the tv does come on briefly 5 seconds when plugged inLeave a comment:
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Re: sharp aquos lc-52xl2e wont power on
opened the cover on the main board and found a green light on the main board it flashes for 5 seconds when i plug tv in then stops see picture attached added some other pictures too...Leave a comment:
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Re: sharp aquos lc-52xl2e wont power on
I retested this morning and I can confirm there is 0v on ps-onLeave a comment:
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Re: sharp aquos lc-52xl2e wont power on
ok the only changes from earlier are
pin/ tv on / tv off
ur12v / 00.51 / 00.00
ur12v /00.52 /00.00
bus5v / 04.98 / 00.00
ac_det / 03.16 /00.00Last edited by MrJIM; 11-05-2017, 08:50 PM.Leave a comment:
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Re: sharp aquos lc-52xl2e wont power on
and should i have the meter set to 00.00 or auto ?Leave a comment:
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Re: sharp aquos lc-52xl2e wont power on
I removed some before because my dmm lead wouldnt fit into the back of the plugs is that ok or should i force the lead in anywayLeave a comment:
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Re: sharp aquos lc-52xl2e wont power on
ok so what should I test now ? I know this must be painful for you but please bare with me I do appreciate all of the help im gettingLeave a comment:
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Re: sharp aquos lc-52xl2e wont power on
Do you mean bus5v ? I have 04.98 v dc on thatLeave a comment:
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Re: sharp aquos lc-52xl2e wont power on
heres the meter and the setting i used...Leave a comment:
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Re: sharp aquos lc-52xl2e wont power on
how can i confirm its the 5v supply and how do i fix itLeave a comment:
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Re: sharp aquos lc-52xl2e wont power on
that would make sense as i have no stand by mode, all readings were taken with dmm set to dc at 0.000 rangeLast edited by MrJIM; 11-05-2017, 01:02 PM.Leave a comment:
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Re: sharp aquos lc-52xl2e wont power on
Hi
yes meter set to dc and if i plug the tv in it goes green light red light no lights all in under 5 seconds. I had to disconnect harnesses from a couple of the pins because my probe couldnt fit into the rear of the plug maybe thats why my readings are off ?
the readings below were taken with the plugs removed so i could get to the pins
pin / power on / power off
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LNB / 0.000 / 0.000
LNB CONT/ 0.000 / 0.000
PS_ON / 0.000 / 0.000
AC_DET/ 3.166 / 0.000...Last edited by MrJIM; 11-05-2017, 11:39 AM.Leave a comment:
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Re: sharp aquos lc-52xl2e wont power on
pin / power on / power off
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LNB / 0.000 / 0.000
LNB CONT/ 0.000 / 0.000
PS_ON / 0.000 / 0.000
AC_DET/ 3.166 / 0.000
PNL_POW / 0.000 / 0.000
SGND / 0.000 / 0.000
BUS5V / OL / 0.000
SGND / 0.000 / 0.000
UR15V / 0.000 / 0.000
UR15V / 0.000 / 0.000
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SGND / 0.000 / 0.000
UR15V / 0.000 / 0.000
SGND / 0.000 / 0.000
0.000 / 0.000
...Last edited by MrJIM; 11-05-2017, 08:31 AM.Leave a comment:
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Re: sharp aquos lc-52xl2e wont power on
Thanks for explaining that so I will refit the board and with my dmm on dc and my black lead on the big metal sheet of the tv I will test all cold side connectors and report pin number and volts with tv unplugged and tv plugged in. please tell me if this is correct and thank you for your patienceLeave a comment:
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Re: sharp aquos lc-52xl2e wont power on
I am not sure what connectors on the cold side you mean could you explain what connectors you mean please . And I cant access the big caps under the metal plate when the board is fitted to the tv to test with power on . if you could explain it as if I have not got any experience it would really be appreciated
ThanksLeave a comment:
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Re: sharp aquos lc-52xl2e wont power on
i took the main board out to look at the back as no access to the bigest caps from the front...Leave a comment:
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Re: sharp aquos lc-52xl2e wont power on
here are a couple pictures could you point out what caps you mean please...Leave a comment:
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sharp aquos lc-52xl2e wont power on
Hi I have a sharp aquos lc-52xl2e tv when I plug it in the green light comes on and goes straight to red light then no lights, all this happens within 10 seconds and nothing will happen unless I remove power plug and wait a couple minutes then if I try again the process will repeat . I am unable to go into service mode in this time frame and was hoping this problem is known by someone on this site
Thanks. -
Re: New Members - please post your introductions here
Hello everyone im Jim 47 yr old living in essex uk. I am a gas engineer and enjoy spending time with my two sons,building/fixing computers playing pc games and my dogs Maddie and Max. I joined this site hoping to find a fix for a tv that landed in my lap and look forward to talking to you.Leave a comment:
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