Hi Badcaps community.
I picked up a used Vizio e600i-b3 locally, hoping for a few dud LEDs only, but alas, it seems there is a problem with the power supply. I've attached pictures of the layout of the TV, the front and back of the power supply, and a few close-ups of some of the connectors. I saw this video on YouTube and determined that the PSU was likely at fault as my power supply gave nearly identical voltages to the video. In the video he just replaced the PSU, but I'm wondering if there is an easy way to diagnose if one of the ICs he mentions under the glue are likely at fault.
Here are my voltages:
CN301:
Pin Label Actual
1 27V 0
2 27V 0
3 27V 0
4 27V 0
5 GND 0
6 GND 0
7 GND 0
8 ISNS 0
9 VSNS 0
10 GBD 0
CN201
Pin Label Actual
1 NC 0
2 AC-Det 0.31V
3 PS-ON 3.39V
4 12v-AU 12.36V
5 GND 0
6 GND 0
7 GND 0
8 12V Reg 12.36V
9 12V Reg 12.36V
10 NC 0
11 LED-ON 0
12 LED-BR 0
13 NC 0
14 12V T Con 0
15 T Con_On 0
These voltages do not change when I attempted to power the set on, and interestingly, the PS-ON voltage is at 3.3V immediately after plugging in the set.
I'm not reading any shorted diodes or fets or seeing any bulged caps. Fuse also checked out. I carefully used a plastic spudger to clean all of the glue away from the 3 ICs on the back of the board.
Here are the 3 labels on the parts that were underneath the glue on the back
L6699D is at U307 near the middle of the back of the power board
TEA1733 is at U1 on the left side of the board near the middle vertically
L6564D is at U101 near the middle horizontally and the bottom 3rd vertically
So to my main question:
Is there an easy way to test these components, or would it make the most sense to just go ahead and replace all 3 for about $10 on Mouser? Thanks for any help you can provide.
I picked up a used Vizio e600i-b3 locally, hoping for a few dud LEDs only, but alas, it seems there is a problem with the power supply. I've attached pictures of the layout of the TV, the front and back of the power supply, and a few close-ups of some of the connectors. I saw this video on YouTube and determined that the PSU was likely at fault as my power supply gave nearly identical voltages to the video. In the video he just replaced the PSU, but I'm wondering if there is an easy way to diagnose if one of the ICs he mentions under the glue are likely at fault.
Here are my voltages:
CN301:
Pin Label Actual
1 27V 0
2 27V 0
3 27V 0
4 27V 0
5 GND 0
6 GND 0
7 GND 0
8 ISNS 0
9 VSNS 0
10 GBD 0
CN201
Pin Label Actual
1 NC 0
2 AC-Det 0.31V
3 PS-ON 3.39V
4 12v-AU 12.36V
5 GND 0
6 GND 0
7 GND 0
8 12V Reg 12.36V
9 12V Reg 12.36V
10 NC 0
11 LED-ON 0
12 LED-BR 0
13 NC 0
14 12V T Con 0
15 T Con_On 0
These voltages do not change when I attempted to power the set on, and interestingly, the PS-ON voltage is at 3.3V immediately after plugging in the set.
I'm not reading any shorted diodes or fets or seeing any bulged caps. Fuse also checked out. I carefully used a plastic spudger to clean all of the glue away from the 3 ICs on the back of the board.
Here are the 3 labels on the parts that were underneath the glue on the back
L6699D is at U307 near the middle of the back of the power board
TEA1733 is at U1 on the left side of the board near the middle vertically
L6564D is at U101 near the middle horizontally and the bottom 3rd vertically
So to my main question:
Is there an easy way to test these components, or would it make the most sense to just go ahead and replace all 3 for about $10 on Mouser? Thanks for any help you can provide.
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