Re: Lg plasma 42PQ60 Power Problem
here is some pictures of Power Supply...
qussy101
Member
Last Activity: 07-03-2015, 11:33 AM
Joined: 03-02-2015
Location: palestine
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Re: Lg plasma 42PQ60 Power Problem
i tried to disconnect y-sus , x board , main board .. still no VS, Va ,5V voltages , i think there's is a short in power board , cuz when i plug the AC power i hear click relay ON then OFF and all voltages goes down from 300v to 0v .. and i checked all transistors no short found .. also i tried to test the 5v when i plug the AC power i can see the 5v on DMM and it's goes to 0v immediately ..
TV model : LG 42pq60r -- can't find any schematic !!Leave a comment:
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Lg plasma 42PQ60 Power Problem
when i plug the AC Power i hear a relay click in power supply it's like ON and OFF and the a green led shows in Main board , after 1 sec the green led goes to red in main board
Power supply model : pspu - j808a
Voltages : 5v to 0v after led goes to red
VS : 0v
VA : 0v
and all the voltages around B.Rectifier goes down to 0v
can anyone help me ?! -
Re: Acoustic Solutions TV - Stuck on Standby
unfortunately.. i can't buy a new Board because i'm from palestine it's not cheap .. in USA it's 50$ .
Here in Palestine it's 160$ shipping and tax included so i have to fix it
Leave a comment:
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Re: Acoustic Solutions TV - Stuck on Standby
yes u r right ...Leave a comment:
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Re: Acoustic Solutions TV - Stuck on Standby
there's a regulator U121 shorted to GND .. i remove it and nothing happen still shorted .
also c506 shorted ... UfffLast edited by qussy101; 03-03-2015, 09:55 AM.Leave a comment:
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Re: Acoustic Solutions TV - Stuck on Standby
So .. have you schematic ? .. did you find the problem .. ?
i don't have time to check for the problem .. so if u find anything tell us pleaseLeave a comment:
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Re: Acoustic Solutions TV - Stuck on Standby
oki..
in 17bm35 schematic you have CN117 and CN126 it's a little bit different .. in PL816
in pl816 ( 3.3v) is 18,20,22 .. in cn117 it's 8,10,12 .Leave a comment:
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Re: Acoustic Solutions TV - Stuck on Standby
YEs
Pin 18,20,22 (3.3v input pins ) on the main board is shorted to GND >> Yes
the power supply is fine...Leave a comment:
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Re: Acoustic Solutions TV - Stuck on Standby
ok.. but there's a short to gnd with pins (18,20,22) on mainboard without PSUB connected .. nd the 24v is stable with inverter connected ,but not with main board ....Leave a comment:
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Re: Acoustic Solutions TV - Stuck on Standby
17mb35-1 schematic download link here ..
i'm working on it .. let's us investigate together...Leave a comment:
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Re: Acoustic Solutions TV - Stuck on Standby
i'm working on it ..
i hv the same issue .. when i Run the Power Board alone ( 17pw26-4 )
the output voltages seems to be fine .. all working fine , but when i connect the main board i hear a clinking noise and the out voltages flip flops like (12v >~ 4.2v ) and 24v drops to 15v .. i tried everything...Leave a comment:
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Re: Acoustic Solutions TV - Stuck on Standby
i have the same problem here ..
check the CN117 Pins on MainBoard ( 18,20,22) , check 3.3v shorted to ground in Main BoardLeave a comment:
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