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Equipment Repairs => PLASMA TV forum => Topic started by: netdent on October 13, 2011,04:13:31

Title: BN44-00161 repairs
Post by: netdent on October 13, 2011,04:13:31

Need some guidance I repaired this psu, QX801 and 802 were blown apart, I replaced them but still no results, discovered  DX804 to be short or low ohms (11ohms in circuit) this smd diode/transistor is designated as B3 trawling the net I came up with this

http://uk.farnell.com/nxp/bzx84-b3v3-215/diode-zener-0-25w-3-3v-sot23/dp/1757848?Ntt=bzx84b3v3

but not sure if this is what I need?

thanks Ronnie

Title: Re: BN44-00161 repairs
Post by: daz on October 13, 2011,04:39:06

hi netdent
must confess i hadnt given them much thought as there are loads used on these power supplys i usually take them from scrap pcbs, will look for a service manual and find out and get back to you.
daz

Title: Re: BN44-00161 repairs
Post by: netdent on October 13, 2011,04:44:00

Thanks Daz, trouble is its difficult to see the markings on the components to find a scrap one

cheers Ronnie

Title: Re: BN44-00161 repairs
Post by: daz on October 13, 2011,05:03:30

email me you address and i will send you a couple
daz

Title: Re: BN44-00161 repairs
Post by: netdent on October 13, 2011,05:09:28

Brilliant Daz, cheers email sent

Ronnie

Title: Re: BN44-00161 repairs
Post by: daz on October 13, 2011,05:20:01

its on its way,
good luck
daz

Title: Re: BN44-00161 repairs
Post by: netdent on October 15, 2011,14:36:57

Now up and running, needed 2x 20ohm smd resistors, big thanks to Daz for his kind help

cheers Ronnie