Hi guys;another LCD tv saved from dumpster;i just resolver all critic joints on the power board,Tv works great,except it takes 2 or 3 pushes on the power button to turn on tv,has this to do with the start up cap? can someone point me to the start up cap,or something-else i could look over?thanks
Insignia NSLCD32 help.
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Re: Insignia NSLCD32 help.
Hi guys;another LCD tv saved from dumpster;i just resolver all critic joints on the power board,Tv works great,except it takes 2 or 3 pushes on the power button to turn on tv,has this to do with the start up cap? can someone point me to the start up cap,or something-else i could look over?thanks -
Re: Insignia NSLCD32 help.
check to see if stby is stable, then check if the voltage on the main cap is stable. after that, check if your ps/on voltage is changing states when you activate power, and remains stable.WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?Comment
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Re: Insignia NSLCD32 help.
Last edited by ivtec; 08-22-2017, 09:18 AM.Comment
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Re: Insignia NSLCD32 help.
There are pin names of those white connectors, you need to put down pin names and follow by the DCV reading of each pin so we can see what you have right now.
Is this the exact board?
http://www.shopjimmy.com/insignia-66...pply-unit.htm#Last edited by budm; 08-22-2017, 09:38 AM.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: Insignia NSLCD32 help.
There are pin names of those white connectors, you need to put down pin names and follow by the DCV reading of each pin so we can see what you have right now.
Is this the exact board?
http://www.shopjimmy.com/insignia-66...pply-unit.htm#Comment
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Re: Insignia NSLCD32 help.
we still need the voltages on the connector that goes to the main.
pin description, v in stby, v after power button is pressed.
if you have absolutely no stby voltage at all. disconnect the main board and then check to see if your stby voltage then comes up.WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?Comment
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Re: Insignia NSLCD32 help.
Can i connect the power to the board out of the TV and check voltages without load?i guess some voltages can't be checked without main board connection! any input would be appreciated, thanks for your patienceLast edited by ivtec; 08-23-2017, 08:21 AM.Comment
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Re: Insignia NSLCD32 help.
I don't have no voltages on the output to main or any other board, even when i unplug all the connectors,as i said now after i changed all suspected caps it's harder to turn tv on it takes many pushes on the power button in order to fire up tv,then it does it has all voltages on the output to the boards ,i don't have the remote control to check if it turns on with the remote,strange though is that when i plug in the power cord i should have a red led and i don't,as i said i have 167v at big Cap and at the bridge rectifier.
Can i connect the power to the board out of the TV and check voltages without load?i guess some voltages can't be checked without main board connection! any input would be appreciated, thanks for your patienceComment
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Re: Insignia NSLCD32 help.
I would think the big cap on your power board should churn out closer to 400v when all turned on - are you measuring legs of cap (hard to do with this mounting when assembled).Comment
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Re: Insignia NSLCD32 help.
theres not much in regards to pin markings on this psu there is two that say 5V and ON i wonder if you jump these two with a 1 k resistor will the other supplies come up then hopefully budm etc can advise before you try it.Comment
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WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?Comment
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Re: Insignia NSLCD32 help.
the link budm provided by shop jimmy has good zoomable pictures in maybe easier for you too trace the circuit?Comment
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Re: Insignia NSLCD32 help.
that is heaps better, pity i'm not that good at tracing these things out.
what is the part number of n502?WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?Comment
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Last edited by budm; 08-24-2017, 09:03 AM.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: Insignia NSLCD32 help.
Ok i checked R514=74 it's ok 75Homs
Checked R520= 1.7 ohms it's ohms not OK should be 75 ohms,
also checked R513=0.5 ohms not ok should be 15 ohms,
here pic of the bad resistors ,i think!Comment
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Re: Insignia NSLCD32 help.
R513 (in PFC section) is 0.15 Ohms resistor, it shows 0.5 Ohms on your meter because of your probes resistance.
Try heating C521 and the cap next to it with hair dryer first and then apply the power to see if you will get the 5VDC back.Last edited by budm; 08-24-2017, 10:52 AM.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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