I bought this very effective but cheap (inexpensive) USB insect zapper. It suddenly failed. I have an identical one and after comparing components on both I came to the conclusion that a small smd chip, apparently a voltage regulator, burnt out.
The unit has 4 UV LED mounted on the board. The voltage regulator smd has ML8 printed on it. I cannot find this anywhere online so I do not know what characteristics to look for to find a suitable replacement.
Can anyone help me?
Whilst testing it, I must have been zapped myself from the coil of wire suggesting that the zapper itself still works but the LEDs do not light up.
[image|3402019]
-
-
The arrow points to the component I need to replace.
Thanks in anticipation.
=== Update (08/21/24) ===
+
I may be wrong in how I am testing these components. I might be wrong in my deduction earlier.
I have tested again and found that R3 (226) shows a reading of 4.85 MOhm. Shouldn't this be 22 MOhm?
I bought this very effective but cheap (inexpensive) USB insect zapper. It suddenly failed. I have an identical one and after comparing components on both I came to the conclusion that a small smd chip, apparently a voltage regulator, burnt out.
The unit has 4 UV LED mounted on the board. The voltage regulator smd has ML8 printed on it. I cannot find this anywhere online so I do not know what characteristics to look for to find a suitable replacement.
Can anyone help me?
Whilst testing it, I must have been zapped myself from the coil of wire suggesting that the zapper itself still works but the LEDs do not light up.
[image|3402019]
+
+
The arrow points to the component I need to replace.
Thanks in anticipation.
=== Update (08/21/24) ===
-
I may be wrong in how I am testing these components. I might be wrong in my deduction earlier.
I have tested again and found that R3 (226) shows a reading of 4.85 MOhm. Shouldn't this be 22 MOhm?
I bought this very effective but cheap (inexpensive) USB insect zapper. It suddenly failed. I have an identical one and after comparing components on both I came to the conclusion that a small smd chip, apparently a voltage regulator, burnt out.
The unit has 4 UV LED mounted on the board. The voltage regulator smd has ML8 printed on it. I cannot find this anywhere online so I do not know what characteristics to look for to find a suitable replacement.
Can anyone help me?
Whilst testing it, I must have been zapped myself from the coil of wire suggesting that the zapper itself still works but the LEDs do not light up.
[image|3402019]
The arrow points to the component I need to replace.
Thanks in anticipation.
+
+
=== Update (08/21/24) ===
+
+
I may be wrong in how I am testing these components. I might be wrong in my deduction earlier.
+
+
I have tested again and found that R3 (226) shows a reading of 4.85 MOhm. Shouldn't this be 22 MOhm?
I bought this very effective but cheap (inexpensive) USB insect zapper. It suddenly failed. I have an identical one and after comparing components on both I came to the conclusion that a small smd chip, apparently a voltage regulator, burnt out.
The unit has 4 UV LED mounted on the board. The voltage regulator smd has ML8 printed on it. I cannot find this anywhere online so I do not know what characteristics to look for to find a suitable replacement.
Can anyone help me?
Whilst testing it, I must have been zapped myself from the coil of wire suggesting that the zapper itself still works but the LEDs do not light up.
[image|3402019]
The arrow points to the component I need to replace.
Thanks in anticipation.