Bad Zener Diode

[nathan1s]

Hello Forum--I'm looking for help in finding a zener diode labeled lZB36 BL. The diode is off a power inv. board on an Emerson Emerson A17FDMPW-001 Power Supply Unit (Model #LC320EM2F). The diode was in position 0610 and is removed on the attached photo labeled "Emerson 2".


Thanks,

Nathan

[budm]

Re: Bad Zener Diode

It is 1ZB36, 36V Volt 1W zener.

[nathan1s]

Re: Bad Zener Diode

Budm, Thanks for the help. This TV only lasted a year!

[budm]

Re: Bad Zener Diode

Funai makes Sylvania, Emerson, Symphonic, and Funai TV's.
http://www.funai.us/brand/index.html

[wanbaugh]

Re: Bad Zener Diode

nathan1s, did you get your board fixed? I have the same TV less than a year old and it blew the fuse on the board. I was looking for a schematic for the board so I can try and fix the problem. Did you have the schematic for the board or and other help in troubleshooting the board
Thanks

[Joeyr]

Re: Bad Zener Diode

Same board same issue - replaced the Zener and blew it (closed) after replacing instantly. Any suggestions? Tried to trace without schematic. Near impossible for me...

[budm]

Re: Bad Zener Diode

@joeyr, you have the same problem on this thread, that new Zener blown because the Source resistor is blown open and more likely to have shorted out big MOSFET on the heat sink, you also need to check the small transistor, and check ALL the diodes both in the primary circuits and in the secondary circuits.
Please read this long thread.
https://www.badcaps.net/forum/showthread.php?t=25477