Re: esr or cap tester

Aloha RusMike,

The meter is fixed, simple enough, got an 1 ohm chip resistor from an old board, I usually throw those out but I was hanging on to this, I should start saving them even though they are no good

The new resistor is 4 times bigger but I soldered one side directly to the red probe, it works!

Thanks!

Re: esr or cap tester

Yes, R1 is not 1 ohm, it's like .14 or something like that. Now I have to hunt down one of those, it may be hard to find in Honolulu; question - will it void the warranty if I do my own repair???

Re: esr or cap tester

Did that yesterday, no reply yet, maybe he's on vacation or something.

Re: esr or cap tester

Anyone knows how I can get my ESR-Micro V4.0s for warranty repair? I bought it from PRC68.com last month, I was checking on a power supply board of a plasma TV a few nights ago and one of the capacitor still has charge inside and it sparks and the meter is not working correctly anymore. The board had been disconnected from the power source for over a week and I'm surprise it still holds charge.

PRC68.com said they don't do repair. It said it has a 1 year warranty on the website.

I can still turn on the meter and show the voltage of...

Re: Vizio VX32L turns on with backlight, no video or sound

Hi, they all have the markings

AMC1117
F0646J

Thanks!

Re: Vizio VX32L turns on with backlight, no video or sound



Aloha PlainBill,

Here are the readings from the mounting screw to the 3 pins in the LDOs (they are all AMC1117):

Gnd Vout Vin
U2 2.058 3.307 5.000
U4 2.058 3.310 5.000
U7 0.000 1.244 3.276
U8 2.060 3.309 5.030
U9 0.249 1.492 3.277
U33 2.040 3.282 4.990

Thanks very much!!!...

Re: Vizio VX32L turns on with backlight, no video or sound

Aloha, I have the same symptoms on my VX32L - turns on with backlight, no video or sound. I measured the outputs of all the LDOs and here are the readings:

V1-2 V1-3 V2-3
U2 1.249 2.932 1.683
U4 1.253 2.933 1.680
U7 1.243 3.275 2.032
U8 1.250 2.963 1.713
U9 1.245 3.026 1.781
U33 1.242 2.946 1.705

Any ideas?