Sansui HDLCD1912 Power supply board number CEH434A. I have a shorted Zener diode and need to find out the rating/part number. With a USB microscope I can see BEE on it but nothing else. It's D527 on the board any help is appreciated!
Sansui HDLCD1912 Part ID
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by caspianDear members,
I have a linear variable power supply with unknown brand name that I used for voltage injection.
Then it failed. I discovered that its transistors (Q1 and Q2) are shorted.
In addition, I discovered that its zener diodes are defective.
I can replace the burned transistors.
But I do not know the model of the zener diodes. the model number is not marked on the zener diodes.
Therefore, I cannot replace the zener diodes.
I do not want to test the zener diodes in a test circuit to discover their model or value.
no schematics are available... -
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This is especially annoying for small SMD components like diodes and transistors when you only have 1-3 digits printed on the component body.
For an example, look at the attached PDF.
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