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TC1 lcr-meter transistor-tester fix

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Per Hansson:

--- Quote from: masster on August 15, 2022, 06:06:50 pm ---What optical overlay are you talking about? There is no such thing. The image on the left was taken with a regular phone camera. The image on the right came directly out of the FLIR device, and it is not in overlay mode.
I have cropped the left photo to look similar to the framing of the FLIR photo. Moreover, what common sense are you talking about? Condemning the ATMega chip by default? I'm looking for a short circuit on VCC bus. What is wrong with a capacitor being shorted? What do you know about the precision and resolution of the FLIR device I'm using? Nothing.

--- End quote ---
Please look at the thermal picture of the crystal, and where it is in the photograph from the Flir:

masster:
After I removed capacitor C7, the current consumption dropped to 57 mA when testing (from 170 mA). No more overheating on the board.
The tester looks functional now. I have to replace the faulty 78L05 chip, the SRV05-4, and the filtering capacitors I removed.
Thank you for your replies.

TurboTom:
Yes. Of course. Good luck with your repair!

shved:
Been there, done that. I've also had excessive power draw. Double check the caps, esp. C6 & C7. Also check for corrosive flux. Give a quick read to the rest of the thread.

masster:
Quote from: TurboTom on Today at 12:53:48 am
--- Quote ---Yes. Of course. Good luck with your repair!
--- End quote ---

Despite your useless sarcasm, the device works. Learn to accept you were wrong. Good bye.

--- End quote ---

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