⚠ help ⚠ // toshiba 55zv650u
Hello!
First of all, thanks in advance for all your help ~ I have huge respect for people that help others online.
Now, I've been trying to fix my TOSHIBA 55ZV650U for while but to no avail. One day, out of the blue, it simply stopped working. Looking at the circuitry, I found that one of the fusible resistors had opened (which seems to be the most common issue w/ TVs of this model from what I can see in this forum) and that caused the standby voltage to be dragged all the way down to 0 V -- anyway, I replaced the part thinking that would be the end of it but I still got no response from the TV. This was particularly weird because; now, measuring the standby voltage, I was actually getting the 5 V. Still, no sign of even the indicator light ��.
I figured that one of the capacitors was the issue and attempted removal for testing -- unfortunately, that proved impossible 'cause capacitors plus old solder don't go together very well. Anyway, I ended up ripping apart the biggest capacitors and figured I'd just replace all of them. Still, after replacement, no luck.
Also, if it helps, when connecting/disconnecting the TV from power I hear a clicking/ticking sound once.
Attached, you'll find pictures of the circuitry (w/ the components I replaced marked) and measurements of specific parts of the circuit. Plus, FYI, I followed all the instructions suggested here too: https://www.youtube.com/watch?v=ttrSsgkI5TE -- TampaTec played w/ the same model as my TV in the video.
Please, HELP!
Cheers,
Dan.
First of all, thanks in advance for all your help ~ I have huge respect for people that help others online.
Now, I've been trying to fix my TOSHIBA 55ZV650U for while but to no avail. One day, out of the blue, it simply stopped working. Looking at the circuitry, I found that one of the fusible resistors had opened (which seems to be the most common issue w/ TVs of this model from what I can see in this forum) and that caused the standby voltage to be dragged all the way down to 0 V -- anyway, I replaced the part thinking that would be the end of it but I still got no response from the TV. This was particularly weird because; now, measuring the standby voltage, I was actually getting the 5 V. Still, no sign of even the indicator light ��.
I figured that one of the capacitors was the issue and attempted removal for testing -- unfortunately, that proved impossible 'cause capacitors plus old solder don't go together very well. Anyway, I ended up ripping apart the biggest capacitors and figured I'd just replace all of them. Still, after replacement, no luck.
Also, if it helps, when connecting/disconnecting the TV from power I hear a clicking/ticking sound once.
Attached, you'll find pictures of the circuitry (w/ the components I replaced marked) and measurements of specific parts of the circuit. Plus, FYI, I followed all the instructions suggested here too: https://www.youtube.com/watch?v=ttrSsgkI5TE -- TampaTec played w/ the same model as my TV in the video.
Please, HELP!
Cheers,
Dan.
Attached Files
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