sony kv-21da75 protect?

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sony kv-21da75 protect?

Post by sherlanmamaril on Mon Apr 11, 2016 2:29 pm

masters help sa surplus na japan na ito ho, namamatay sya parang protect minsan nd mag on minsan nung mamamatay biglang magoon 
sukat akong voltages kumpleto sa secodnary during shutdown nya  sa 7805 reg present  5volts . may stbye transformer pa ito sa hindi ko alam na rason, try hang vertical ic blinking error lang ho sya, napansin kopa naka diskonek yung board ng tact switch  pag ikabit  nd mag oscillate, anu kaya sira nito masters? tulong namna ho nd ko alam san sisimulan kung may diagram sana kayu jan ho

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Re: sony kv-21da75 protect?

Post by sherlanmamaril on Tue Apr 12, 2016 1:05 pm

ups naman masters

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Re: sony kv-21da75 protect?

Post by alvinquimbo on Wed Apr 13, 2016 2:40 pm

sis ano-ano ang mga parts yan sis.??tapos may b+ ba yan sis?at ilan ang nasusukat mong b+...? Tapos yung isyu mo sa tact switch baka problema si system con or baka may problema ang eeprom yan..try mo daw ihang yung pin 8 ng eeprom tapos i-on mo baka mag-oscillate, kung wala ay ibalik mo sa dati..Nacheck mo naba ang ibang parts gaya ng H-out kung sya?

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Re: sony kv-21da75 protect?

Post by Electro on Wed Apr 13, 2016 8:10 pm

baka weak ang 5v niya master kaya shutdown

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Re: sony kv-21da75 protect?

Post by sherlanmamaril on Thu Apr 14, 2016 12:01 am

e2 po mga part #
chassis # CMKI-81X
EBOARD 1-688-619-22
UOC TDA12009H / N1B7F00C
SOUND AN5276T
TUNER BTP-AJ301
HOT C5885
VERTICAL STV9332A
REGULATOR STR F6234
try ko hout itest master, hang ko din smd na eeprom, uoc gamit nya po saka ok ang b plus ho may se125 at sakto sya, anu silbi kaya nung stbye transformer dito ? pero yung 7805 reg sa chopper kumukuha najumperan kona ang relay sa power saka resolder no luck, nd ko pa nakikita ang 5v vcc ho masters

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Re: sony kv-21da75 protect?

Post by alvinquimbo on Thu Apr 14, 2016 2:52 pm

sis try mo daw short ang fusible resistor papuntang heater..kung walang nangyari ay balik mo lang sa dati...hindi ko kasi alam ang pin ng uoc na nagproprotic.. sana lang may datasheet tayo yan.. investigate investigate investigate

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Re: sony kv-21da75 protect?

Post by sherlanmamaril on Tue Apr 19, 2016 10:26 pm

master nd ko na  jinumperan ang heater line since nakita ko nd ito protect , pansin ko during shutdown nya nawawala ang 8v sa coil ng relay para sa main switch, may stbye transo kasi ito na nagpapalito talaga sakin,  tapos  yng switch nya nd sa ac line connected nd ako sanay panu yun nagana gaya to sa mga lumang lg tv  sa main switch , nalilito ako ho

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Re: sony kv-21da75 protect?

Post by alvinquimbo on Wed Apr 20, 2016 3:02 am

sis nagkausap kami ni sir ultra, sabi nya ang stby trafo ang nagpapa-oscillate jan sa unit mo..sundan mo nalang kung bakit nawawala ang 8v nyan..

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Re: sony kv-21da75 protect?

Post by Electro on Wed Apr 20, 2016 12:14 pm

nagpoprotect siguro yan master. ang alam ko para sa on yang standby. gaya ng push button

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Re: sony kv-21da75 protect?

Post by sherlanmamaril on Fri Apr 22, 2016 1:28 am

master alvin  salamat naman sinadya nyo pa pati kayu master electro, bali 8volts galing sa ito ho? medyu kalito desing panu din inooscilate ni stbye transfo yung set ? pag nammatay to walang led, kaya sa stbye transfo yung vcc ng led galing tingin ko ho, 
san ho uli master yung 8v ? uoc na gamit nito
8volts na supply ba ng jungle sa hvcc? nd kona kasi alam gagawin ko kahit jumper relay shutoff pa din

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Re: sony kv-21da75 protect?

Post by sherlanmamaril on Fri Apr 22, 2016 1:33 am

Electro wrote:nagpoprotect siguro yan master. ang alam ko para sa on yang standby. gaya ng push button
sya master nd sya nakalagay sa ac line pero kung pindutin mo sya naglolock parang sa ac line nakakabit, siguru dahil sa stbye transfo nalilito ako salamat sa tulong ngayun ko lang inaasikaso medyu hirapan kase

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Re: sony kv-21da75 protect?

Post by Electro on Sat Apr 30, 2016 10:32 pm

wala akong ideya master anong pin ang hvcc ng uoc na yan. sana may mapa sina master.

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Re: sony kv-21da75 protect?

Post by ultrasonic™ on Thu May 05, 2016 11:05 am

Japan surplus ba yan sherlan?

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Re: sony kv-21da75 protect?

Post by sherlanmamaril on Thu May 05, 2016 11:00 pm

yes po master ultra Sad wala ngang diagram sa maynila,
bumili akong lens ng ps2 ok na ps2 pero ito sakit sa ulo sana may diagram lang kahit panu Smile  tnx pala sa pag pansin

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Re: sony kv-21da75 protect?

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