Re: Dead Sharp Aquos LC-32LE430E
Unsoldered ic9312, and c9311 still measures short, no continuity (both ways) while measuring in diode mode.
And I have no power at all on the cold side....
borstar_micke
Member
Last Activity: 05-04-2023, 01:58 AM
Joined: 03-21-2023
Location: Västra Götaland
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Re: Dead Sharp Aquos LC-32LE430E
Here is a picture of my old multimeter....Leave a comment:
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Re: Dead Sharp Aquos LC-32LE430E
Life got in the way, so I´ve first now had time to look at the board again.
Measured C9312 for continuity, gives a reading of zero both ways, indicating open circuit.
Also measured both sides against pin12 (hot ground) on IC9301, gives the same result.
Measured across C9311 which gives a reading of 1 both ways, indicating short circuit.
Against ground 1 one way and zero the other way.
Have also measured all resistors on the hot side which seems to be ok, and as good as I´m...Leave a comment:
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Re: Dead Sharp Aquos LC-32LE430E
Removed and measured the ZD9301, now 762 / 1 so I guess that makes it ok?
Attached 2 photos of the hot side....Leave a comment:
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Re: Dead Sharp Aquos LC-32LE430E
It´s a smd zenerdiode so I´ll just remove from the board and measure both ways then?Leave a comment:
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Re: Dead Sharp Aquos LC-32LE430E
Thanks for the help, greatly appreciated!
Measured IC9301; pin6 at 317v, pin1 at 0v
ZD9301 measured 003/003
R9325 I just cant seem to find... strangely only the 32" seems to miss the schematics of the B-side of the power board in the repair manual... also cant find ZD9301 or R9325 in the parts list for the 32"...Leave a comment:
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Re: Dead Sharp Aquos LC-32LE430E
No voltage AT ALL on the cold side...Leave a comment:
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Re: Dead Sharp Aquos LC-32LE430E
Melted a lot of solder joints, still no go...
Last edited by borstar_micke; 03-23-2023, 12:22 PM.Leave a comment:
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Re: Dead Sharp Aquos LC-32LE430E
Ok,thx, will try that tonight!Leave a comment:
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Dead Sharp Aquos LC-32LE430E
My 12y old daughters tv (that she got after her grandpa, has sentimental value to her) was just dead without stby light a couple of weeks ago.
I´ve repaired a couple of computer monitors, classic blown capacitor replacements, a 55" Sammy led with t-connboard replacement and a 42" Panasonic edge led where I replaced the led-strip.
Not a master with the multimeter, which is cheap and 10-15year old btw...
So please make it basic...
To the issue at hand.
As stated, the tv is totally dead with no standby light.... -
Re: New Members - please post your introductions here
Hi!
I´m Mikael from Sweden and I like to fix things rather then just throwing them in the bin and buy new. I hate too give up so I´ll probably use just a wee bit too much time sometimes... Although it got me a Samsung 55" 4k led tv for 60 bucks, the cost of a used t-conn board from ebay... 
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