SMD S461, L266 on DC-DC converter - HP 02463-80901 ; what are these devices for?
|
HP 4263B LCR meter.?
It worked wonderfully for the past few years until last month when a total blank of display at turned on.?
Later on it had been turned on once again with correct measurements but one of the red LED 5V was lit.
Now it was totally dead. I suspected that the Japanese made DC-DC converter 02463-80901 was the culprit since no output can be measured from this unit.
?
There are two surface mount devices marked as S461 and L266; four legs components with plus on two pins. I had never seen any SMD like these. Are they diode or a twin capacitors? S461 was connected in parallel so it might more likely to be capacitor?
?
Basically my problem of 4263B was exactly as the same as the following post: blown L266 with evaporaied carbon deposite??
?
https://xdevs.com/pow/hp4263b_dcdc_pow/
?
Your input is greatly appreciated.?
?
Thank you!
?
Yeun-Jung Wu
|
