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
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Insignia NSLCD32 help.
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Re: Insignia NSLCD32 help.
Originally posted by ivtec View PostHi 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
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Re: Insignia NSLCD32 help.
Originally posted by attainteddragon View Postcheck 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.Last edited by ivtec; 08-22-2017, 09:18 AM.
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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=24809
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Re: Insignia NSLCD32 help.
Originally posted by budm View PostThere 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#
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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?
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Re: Insignia NSLCD32 help.
Originally posted by attainteddragon View Postwe 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.
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.
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Re: Insignia NSLCD32 help.
Originally posted by ivtec View PostI 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 patience
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Re: Insignia NSLCD32 help.
Originally posted by attainteddragon View Postthis may be nothing but this cap is discoloured and have you checked this fuse.
also saw a few bad joints on the back.
pics aren't great, so i struggled to work out much of the stby circuit, and couldn't find a schematic anywhere.
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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=24809
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Re: Insignia NSLCD32 help.
Originally posted by budm View PostThe pins are marked on the bottom side of the board. So do you have at least the 5VDC? IOf no 5VSTBY then check those big resistors by the SMPS IC N502, and also two startup/running caps C521, and C??? next to C521.
Pictures provided by shopjimmy.
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!
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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=24809
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