Author Topic: Sakura amplifier (right channel output damage) (Read 1015 times)

edtechph · « **on:** October 18, 2010, 05:48:43 PM »

Patulong mga sir basag kasi tunog ng kabilang channel ng amplifier. nacheck na lahat ng transistor ok naman. anu kaya posibleng problem nito.

Philippine Electronics Forum · « **on:** October 18, 2010, 05:48:43 PM »

sundyhips · « **Reply #1 on:** October 18, 2010, 05:54:33 PM »

sis check u tone control ic yong 8 pin cya dyan sa tone control section,replade u nalng tatlo yan cya or dalawa ic,naka trouble na ako ng ganyan,

Philippine Electronics Forum · « **Reply #1 on:** October 18, 2010, 05:54:33 PM »

Roland · « **Reply #2 on:** October 18, 2010, 08:34:58 PM »

hang mo input ng amp section at direkta mo po syang pasikan ng audio source, kung basag pa rin nasa amp section ang problema(forget the tone and preamp section)

Kung nsa amp ang problema, check agad transistors and resistors, hang at least isang paa para di ka maloko ng tester. If sa tingin mo ok lahat ito agad ang tanong mo:

ilan dc offset? how many volts in the base of the drivers? ilan standby current ng mga output trannys? how many volts in the emitter of deffrentials?

Philippine Electronics Forum · « **Reply #2 on:** October 18, 2010, 08:34:58 PM »

edtechph · « **Reply #3 on:** October 19, 2010, 08:16:11 PM »

nacheck na po namin yung mga transistor sa amp kasi dinirekta namin yung input and disconnect yung tone and preamp. yung lang voltage di pa, anu po ba usual voltage ng mga yan? compare ko na lang sa other channel. thanks mga sis.

Philippine Electronics Forum · « **Reply #3 on:** October 19, 2010, 08:16:11 PM »

Roland · « **Reply #4 on:** October 19, 2010, 09:19:12 PM »

better compare.

Philippine Electronics Forum · « **Reply #4 on:** October 19, 2010, 09:19:12 PM »

Roland · « **Reply #5 on:** November 01, 2010, 02:56:01 PM »

ano na nangyari sir? umusok na ba?

Woots29 · « **Reply #6 on:** November 01, 2010, 03:07:32 PM »

Quote from: Roland on November 01, 2010, 02:56:01 PM

ano na nangyari sir? umusok na ba?

jiggins20 · « **Reply #7 on:** November 01, 2010, 05:42:41 PM »

kung basag ang tunog at di mo maitodo ung volume....pm mo ako...

edtechph · « **Reply #8 on:** November 01, 2010, 06:42:56 PM »

di ko pa maasikaso bc pa po sa dami gawa. post ko po pag ok na. pag mahina ok naman pag itinaas yun nga basag.

edtechph · « **Reply #9 on:** November 03, 2010, 07:24:47 PM »

ok na amp isang resistor lang nakuha ko open sya. thanks sa lahat ng nagsuggest pogi points roland and jiggins20.

NORTH LUZON · « **Reply #10 on:** November 03, 2010, 07:33:45 PM »

ang galing naman
sana may magturo dito papano magtroubleshoot ng ampli

Roland · « **Reply #11 on:** November 03, 2010, 08:51:52 PM »

Quote from: edtechph on November 03, 2010, 07:24:47 PM

ok na amp isang resistor lang nakuha ko open sya. thanks sa lahat ng nagsuggest pogi points roland and jiggins20.

galing mo naman sir
salamat sa points
normal lang yan sa sakura at konzert masira yong mga maliit na resistors lalo na yong emiiter resistor ng drivers. syado kasing tipid pagkagawa tapos abusado ang gumagamit. sabagay mura lang naman ang sakura.

Quote from: insider2012 on November 03, 2010, 07:33:45 PM

ang galing naman
sana may magturo dito papano magtroubleshoot ng ampli

calling master danny....

Triple_D · « **Reply #12 on:** November 04, 2010, 07:23:01 AM »

congrats sis sana may mgpost na mga master troubleshootiung ng amp.para aware tayo lahat...

Philippine Electronics Forum · « **Reply #12 on:** November 04, 2010, 07:23:01 AM »

Philippine Electronics Forum