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Author Topic: sakura AV2800 no power  (Read 645 times)

Offline Jerbho

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sakura AV2800 no power
« on: July 05, 2011, 03:02:39 PM »
good pm mga master patulong naman po ano po problem good naman ang transistor output nya kaso wala pong audio out papunta sa speaker
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sakura AV2800 no power
« on: July 05, 2011, 03:02:39 PM »

Offline taqui

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Re: sakura AV2800 no power
« Reply #1 on: July 05, 2011, 03:05:10 PM »
may relay ba speaker out?
baka hindi napalo..

wait natin mga audio master.
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Re: sakura AV2800 no power
« Reply #1 on: July 05, 2011, 03:05:10 PM »

Offline x13r_kit_0

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Re: sakura AV2800 no power
« Reply #2 on: July 05, 2011, 03:23:57 PM »
Quote from: Jerbho on July 05, 2011, 03:02:39 PM
good pm mga master patulong naman po ano po problem good naman ang transistor output nya kaso wala pong audio out papunta sa speaker

more info...

ok ba speaker...audio input..rca..
resolder...check supply voltage...to main amp..
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Re: sakura AV2800 no power
« Reply #2 on: July 05, 2011, 03:23:57 PM »

Offline Triple_D

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Re: sakura AV2800 no power
« Reply #3 on: July 05, 2011, 05:31:25 PM »
Quote from: Jerbho on July 05, 2011, 03:02:39 PM
good pm mga master patulong naman po ano po problem good naman ang transistor output nya kaso wala pong audio out papunta sa speaker
baka nakamute hehe..spkr ok ba?
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Re: sakura AV2800 no power
« Reply #3 on: July 05, 2011, 05:31:25 PM »

Offline unitech

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Re: sakura AV2800 no power
« Reply #4 on: July 05, 2011, 06:08:12 PM »
Quote from: taquinaga on July 05, 2011, 03:05:10 PM
may relay ba speaker out?
baka hindi napalo..

wait natin mga audio master.
agree! mga voltahe na check naba lahat?
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Re: sakura AV2800 no power
« Reply #4 on: July 05, 2011, 06:08:12 PM »

Offline GuDo

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Re: sakura AV2800 no power
« Reply #5 on: July 10, 2011, 02:27:49 AM »
ano na troubleshooting done mo? as your topic says, walang power ang unit mo.. please right the appropriate title para hindi siya contradicting sa concern mo.. okay kamo ang power transistors mo? tama si taquinaga maybe the relay isn't clicking.. check also the signal path.. check also the pre-amp of it has supply.. kasi madalas sa mga ganyang amplifier may ginagamit para sa bass and treble drive, medyo common type of pre-amp IC na ginagamit sa audio ay LM4558.. more info sa troubleshooting done..
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Offline taqui

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Re: sakura AV2800 no power
« Reply #6 on: July 10, 2011, 06:05:21 AM »
abang lang kame sir ts
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Offline Disabled

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Re: sakura AV2800 no power
« Reply #7 on: July 10, 2011, 07:08:04 AM »
tambay tambay
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Offline RhUNhA

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Re: sakura AV2800 no power
« Reply #8 on: July 10, 2011, 07:17:17 AM »
tama........ ang topic is no power tpos ang tnung bakit walang audio...usually sa sakura ay yung relay baka hindi nga nag trigger....maybe may heavy load or no supply..check m n mabuti yung mga supply ...speakr bka shorted ...



pki detalye m n mabuti sir TS...at kung anu n yung mga ngawa mo

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Offline sharbor_tech

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Re: sakura AV2800 no power
« Reply #9 on: July 10, 2011, 09:23:41 AM »
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Offline Disabled

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Re: sakura AV2800 no power
« Reply #10 on: July 10, 2011, 09:38:35 AM »
Quote from: sharbor_tech on July 10, 2011, 09:23:41 AM

uy may schema, ung fanstart, eto ba ung sumasabay sa tunog???
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Offline sharbor_tech

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Re: sakura AV2800 no power
« Reply #11 on: July 10, 2011, 09:39:17 AM »
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Offline GuDo

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Re: sakura AV2800 no power
« Reply #12 on: July 10, 2011, 11:34:35 PM »
astig yung schema ng sakura ahh, may fanstart pa.. palagay ko ito nga yung sumasabay sa tunog dahil may fan driver ehh.. :) balita TS?
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Offline Jerbho

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Re: sakura AV2800 no power
« Reply #13 on: September 03, 2011, 02:59:55 PM »
mga master may click po ang relay nya kaso nga lng po walang indicator sa lcd   kahit na ilipat ang mga input nya saan po ako maghahanap ng trouble goog naman ang power transistor nya
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Offline malamig

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Re: sakura AV2800 no power
« Reply #14 on: September 03, 2011, 11:03:08 PM »
pa sub na lang po muna.
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Offline acer

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Re: sakura AV2800 no power
« Reply #15 on: September 03, 2011, 11:49:51 PM »
touch mo yung input ng volume control kung mag iindicate pag meron pusible sira switching IC

 parang wala akung nakitang ganitung model ng sakura sa site nila
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Re: sakura AV2800 no power
« Reply #15 on: September 03, 2011, 11:49:51 PM »
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