Electronics > Repair
HP 4263B lcr help to repair
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Zolonon:
Please help
I want to find the connection point between the mainboard and the dc-dc red wire in 4 pin connector. Which device on the mainboard (in the red circle in the first picture) does it connect to and what is the voltage?
Where does it connect to? I can't see the circuit in the middle layer. (Left side in last picture ) where connect to component
Thank you for help
TERRA Operative:
Here's the pinout from my 4263B:
Left to right (viewed from front of instrument) - Red, Black, Yellow, Black.
Voltages:
Red - 2.68V (DC Bias supply?)
Black - GND
Yellow - 16.0VDC
Black - GND
(GND pins are connected together)
Also, check out my unlock program if you want to activate options 001 and 002 if not already activated on your instrument. :)
https://github.com/JaredCabot/HP-Agilent-4263B-Option-Unlocker
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