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Author Topic: SAMSUNG DSR9401 receiver, SMPS  (Read 2378 times)

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Offline VanitarNordicTopic starter

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SAMSUNG DSR9401 receiver, SMPS
« on: December 12, 2014, 01:33:55 pm »
Hi friends,

I am repairing SAMSUNG DSR9401. the SMPS shows faulty with a bulged capacitor and two diodes which demonstrate fishy forward parameters at the diode test range, one shows 141 and another one shows 174. They are two diodes that I can not find in the local store unfortunately nor any datasheets.  They are:

DIODE-SCHOTTKY; SE55,45V, 5000MA, TO-220A
DIODE-RECTIFIER; SHK55-65,60V, 3A, TO-220AC

Could you help me to find any general replacement for these two parts?
« Last Edit: December 12, 2014, 01:40:13 pm by VanitarNordic »
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Offline NiHaoMike

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Re: SAMSUNG DSR9401 receiver, SMPS
« Reply #1 on: December 13, 2014, 05:20:15 am »
Schottky diodes are supposed to have low forward voltage drop.
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Offline VanitarNordicTopic starter

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Re: SAMSUNG DSR9401 receiver, SMPS
« Reply #2 on: December 13, 2014, 10:20:57 am »
Yes, you are right. specially for these two are quite low. The problem was a bulged cap and now the device is working.
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