ZENER DIODE ZD1551 IN POWER SUPPLY OF SAMSUNG DVD-3650

COALA

Sep 27, 2025
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Sep 27, 2025
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What is the part number of zener diode ( zd1551 ) in the power supply of Samsung DVD-3650?
 

bertus

Moderator
Nov 8, 2019
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Hello,

@anniel
I think the TS means the part designator on the pcb and not the partnumber.

Bertus
 

JameStronic

Oct 16, 2025
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Oct 16, 2025
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Hey COALA, that ZD1551 is usually a 5.1V zener diode. You can replace it with a 1N4733A (5.1V, 1W), just make sure it matches the circuit markings.
 

anniel

Oct 22, 2023
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Oct 22, 2023
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Hey COALA, that ZD1551 is usually a 5.1V zener diode. You can replace it with a 1N4733A (5.1V, 1W), just make sure it matches the circuit markings.
Where did you pull this from? The service manual has no mention of this.
 
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