Re: LG 60PB6600-UA No picture, whine from PSU
Many thanks!
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Re: LG 60PB6600-UA No picture, whine from PSU
Thank you very much for the help, I really appreciate it.
I will look into getting those replaced.
having a hard time finding 2sk3773 transistors. and is the C975 the same capacitance as C873? If so, I am only finding either 3.9nf or 4.7nf capacitors.
Cheers!
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Re: LG 60PB6600-UA No picture, whine from PSU
I've just checked them.
Resistor has no connectivity either way.
I'm not sure if I've checked the transistors correctly, but they read as follows;
Q507 positive left, negitive right - 1.5
Positive left, negative centre - 1.734
Negative centre, positive right - 0.508
Q552 same order as above. 0.886
1.114
0.397
Q553 0.084
0.095
0.012
Thanks
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Re: LG 60PB6600-UA No picture, whine from PSU
Thank you,
I had a look, and that capacitor has a very slight dot of discolouration. There is also one on the board below that looks burnt.
Are these smd caps able to be replaced with a soldering iron? Or does the board need replacing.
First image is upper buffer, second is below that...
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Re: LG 60PB6600-UA No picture, whine from PSU
Sorry about that,
p811
Pin 1 VS = 205
Pin 2 VS = 205
Pin 3 No Connection
Pin 4 VA = 54.94
pin 5 M5v = 5.1
P813
Pin 1 M_ON = 3.3
Pin 2 Auto_GND = 0
Pin 3 RL_ON = 3.2
Pin 4 AC_ON = 5
Pin 5 5.2V = 5.1
Pin 6 17V_DET = 2.2
Pin 7 GND = 0
Pin 8 VS_ON = 3.0
Pin 9 GND = 0
Pin 10 GND = 0
Pin 11 5.2V = 5.1
Pin 12 VS_DET = 2.8
Pin 13 5.2V = 5.1
Pin 14 5.2V = 5.1
Pin 15 GND = 0...
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LG 60PB6600-UA No picture, whine from PSU
Hello all,
I was recently given an LG 60PB6600-UA that was having issues.
I was told that it had audio, but no picture. When I have attempted to turn it on, the screen will flash grey "snow" then go black. While the tv is turned on, I can hear a whine coming from the power supply area.
The standby red light is on while plugged in, but turns off when tv is turned on.
I have tried disconnecting ysus and zsus, only stops the grey flash from happening, still black screen.
I can't see any obvious bad capacitors.
I'm hoping...
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