Author Topic: black knight amplifier fuse keeps on busting... help (Read 564 times)

winlink3d · « **on:** October 21, 2011, 08:01:39 AM »

mga master patulong po regarding sa home amplifier 300w,
ganito pa kc, mayrong fuse sa labas ng ampli and 2 sa loob..

yung nasa labas 3A 250V, and yung 2 sa loob na maliliit 8A 250v..

napalitan ko na po ito 3 times lagi busted yung 1 nasa labas...minsan naman yung 2 sa loob...
pag ganito po ba may problem sa powerng ampli?

if yes, pano ko po simulan ang pag aayos nito? pa help naman po mga master...

Philippine Electronics Forum · « **on:** October 21, 2011, 08:01:39 AM »

gie62 · « **Reply #1 on:** October 21, 2011, 08:08:36 AM »

check mo mga power transistor. check mo din mga solder baka may loose...
ano na ba ginawa mo, maliban sa pagpalit ng fuse...

Philippine Electronics Forum · « **Reply #1 on:** October 21, 2011, 08:08:36 AM »

winlink3d · « **Reply #2 on:** October 21, 2011, 08:26:29 AM »

wala pa po kakabukas ko lang po n2, cge po try ko check yung sinabi nyo...balik lang po ako...salamat

Philippine Electronics Forum · « **Reply #2 on:** October 21, 2011, 08:26:29 AM »

pete · « **Reply #3 on:** October 21, 2011, 11:29:28 AM »

agree remove mo ang ic or transistor output check nyo din po kong hindi sira ang rectifier diode nyo.

kong may leak or shorted sa transistor out sure may tama din ang transistor drive nyan.

make sure na tama ang voltage bago ikabit ang bagong transistor

Philippine Electronics Forum · « **Reply #3 on:** October 21, 2011, 11:29:28 AM »

Disabled · « **Reply #4 on:** October 21, 2011, 11:31:26 AM »

tambay.

Philippine Electronics Forum · « **Reply #4 on:** October 21, 2011, 11:31:26 AM »

DSM_elektronix_shop · « **Reply #5 on:** December 23, 2011, 10:45:35 AM »

isolate mo muna sis secondary ng transfo..

kasi minsan transformer primary sira maysunog na konti...

sukatan mo kung may supply acmeter...

kaya siguro lagi busted fuse ,mmo sa labas

rustomparaynodomagas · « **Reply #6 on:** August 29, 2012, 05:32:34 AM »

Quote from: winlink3d on October 21, 2011, 08:01:39 AM

mga master patulong po regarding sa home amplifier 300w,
ganito pa kc, mayrong fuse sa labas ng ampli and 2 sa loob..

yung nasa labas 3A 250V, and yung 2 sa loob na maliliit 8A 250v..

napalitan ko na po ito 3 times lagi busted yung 1 nasa labas...minsan naman yung 2 sa loob...
pag ganito po ba may problem sa powerng ampli?

if yes, pano ko po simulan ang pag aayos nito? pa help naman po mga master...

maybe yes! pero check mo muna power supply mo kasi kahit isang sakong fuse pa ilagay mo jan kung shorted ung circuit puputok talaga ung fuse

Engr. Dacuycoy · « **Reply #7 on:** August 29, 2012, 07:58:45 AM »

nabuhay ang ...

Disabled · « **Reply #8 on:** August 29, 2012, 09:31:40 AM »

binu...

Philippine Electronics Forum · « **Reply #8 on:** August 29, 2012, 09:31:40 AM »

Philippine Electronics Forum