TCL 21189U NO CONTINOUS POWER

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TCL 21189U NO CONTINOUS POWER

Post by jeb2610 on Sat Jan 05, 2013 5:24 pm

mga bosing patulong naman
mosfet, K2996...viper..44608,,,vert. stv9302a,,,jungle tcl-A21V01-TO,,,,,eeprom,,24C08
ayaw po sya magderetso ng power,,,with in 5 sec magppicture sya tapos magshut down na uli,,,,,napalitan ko na k2996 viper ic at ung eeprom nya..napagana ko na kaso ayaw dumeretso ung power nya,,,,history ng tv ay deadset...no ocillation ng power supply....narepair ko na rin ung tact switch nya,,,saan kaya possible trouble nito,,,salamat po

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Re: TCL 21189U NO CONTINOUS POWER

Post by jeb2610 on Sat Jan 05, 2013 7:46 pm

sir patulong naman po...1 month ko na ginagawa tv na ito

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Re: TCL 21189U NO CONTINOUS POWER

Post by DJFEL on Sun Jan 06, 2013 10:04 am

parang may sira pa ren ang primary supply neto..chik ma agi..yong ecap at saka my lick na risistor..

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Re: TCL 21189U NO CONTINOUS POWER

Post by jeb2610 on Sun Jan 06, 2013 9:21 pm

sir dj..salamat sa respond...ung b+ nya ay 106vdc,,,tapos nung tinanggal ko load na plybak nagpirmis ang 106vdc nya...dun kaya sa load nya,,or sa primary parin? thanks po ...update kita bukas

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Re: TCL 21189U NO CONTINOUS POWER

Post by Electro on Sun Jan 06, 2013 10:53 pm


master jeb baka flybak iyan o leak secondary cap

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Re: TCL 21189U NO CONTINOUS POWER

Post by baddypepito on Tue Jan 08, 2013 2:48 pm

check mo maigi ang mga secondary out voltages kung normal ba..

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Re: TCL 21189U NO CONTINOUS POWER

Post by Electro on Tue Jan 08, 2013 2:55 pm


master jeb may b+ ba kayo?

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Re: TCL 21189U NO CONTINOUS POWER

Post by triac on Tue Jan 08, 2013 6:47 pm

sis jeb post mo dito lahat ng secondary voltage sa secondary para ma evaluate ng mabuti ang problem.At paki check kung anong voltage ang nagdadrop..im sure matutulungan ka ng mga master dito....salamat..

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Re: TCL 21189U NO CONTINOUS POWER

Post by ultrasonic™ on Tue Jan 08, 2013 7:34 pm

^ agreed mas mainam na meron taung test point

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Re: TCL 21189U NO CONTINOUS POWER

Post by DJFEL on Wed Jan 09, 2013 1:53 pm

abang nalang...

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Re: TCL 21189U NO CONTINOUS POWER

Post by jeb2610 on Thu Jan 10, 2013 1:49 pm

mga master B+ po ay 106vdc tapos pag power ko nag on sya tapos namamatay,,,nagiging 17vdc na lang secondary voltage nya,,nung power ko uli napindot ko search channel,,,,nagsearch sya ng channel...kaya matagal sya mag off..nung natapos na ung search nag picture sya ng maganda tapos namatay uli,,,,,saan po kaya ako mag focus ng troubleshooting......try ko po na unload ung supply sa fbt,,pirmis po secondary voltage nya na 106vdc,,,,mga master patulong po

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Re: TCL 21189U NO CONTINOUS POWER

Post by ultrasonic™ on Thu Jan 10, 2013 2:42 pm


^ nka float na ba lhat ng tact switch nyan?

kng Oo.. mlaki ang chance na my Probz ang EEPROM... be sure lng na ok ang Vcc supply nya at ng system con

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Re: TCL 21189U NO CONTINOUS POWER

Post by jeb2610 on Thu Jan 10, 2013 3:10 pm

napalitan ko na eeprom kinuha ko sa kamukha na tv nagpower nga sya tapos namamatay,,,may binili ako na bago 24c08 kaso blanko ko dw sabi ng tindero...paano kaya maprogram ito...try ko ikabit ngayun....ung mga tact switch narepair ko na binuksan ko isa isa at nilinis ko puro umido sya at dinikit ko ng mbond ok na sya may contact na sya,,,,update na lang uli ako mamaya

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Re: TCL 21189U NO CONTINOUS POWER

Post by ultrasonic™ on Thu Jan 10, 2013 3:43 pm

congratz kng ganun.. papalapit ka ng matapoz sis.. i highly recommend na direct replace ka nlng ng bagong tacts switch bka pglipas ng ilan araw o isang buwan.. mag BBJ yan

rgarding sa pgprogram ng eeprom
read ka lng sa link na bgay ko sa baba hnggang 2nd page

DIY EEPROM Programmer (Serial)

gudluck

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Re: TCL 21189U NO CONTINOUS POWER

Post by triac on Thu Jan 10, 2013 6:15 pm

jeb2610 wrote:napalitan ko na eeprom kinuha ko sa kamukha na tv nagpower nga sya tapos namamatay,,,may binili ako na bago 24c08 kaso blanko ko dw sabi ng tindero...paano kaya maprogram ito...try ko ikabit ngayun....ung mga tact switch narepair ko na binuksan ko isa isa at nilinis ko puro umido sya at dinikit ko ng mbond ok na sya may contact na sya,,,,update na lang uli ako mamaya

sis jeb yung tinanggalan mo nang eeprom pareho lang ba yung model o hindi?kung hindi pareho ang model sa alam ko hind pwede correct me mga master,if im wrong.Yung regarding sa tact switch tama si master ultra replace na agad kahit dalawa lang pang test lng sa power mo ilagay ang isa.Paki check ng electrolytic capacitor na mataas ang value..

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Re: TCL 21189U NO CONTINOUS POWER

Post by DJFEL on Fri Jan 11, 2013 12:26 pm

sub mona...parang malapit na to..

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Re: TCL 21189U NO CONTINOUS POWER

Post by jeb2610 on Fri Jan 11, 2013 8:48 pm

mga master nagka problema uli ang tv...nawalan po sya ng power totaly dead set,,,nagmeasure po ako ng voltage 17 vdc secondary,,,tapos wala sya standby 5vdc,,,, check ko ung 5vdc kumuha sya ng supply sa 8vdc transistor ang pinanggalingan nya,,,check ko pa lang ung linya ng 8vdc,,,nung isolate ko sya nagkaroon ng 8vdc,,,,malamang may shorted sa load ng 8vdc papunta sa stanby 5vdc,,,wish me luck na lang mga master sana makita ko ung shorted na yun,,,sakit na ulo ko sa paghahanap,,,tomorrow is another day na nmn sa trobleshooting,,,pero di ko ito susukuan,,,update ko uli kayu thanks mga master

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Re: TCL 21189U NO CONTINOUS POWER

Post by ultrasonic™ on Sat Jan 12, 2013 11:55 am

^ good.. tama yan sis.. wag basta basta susuko... Pinoy tau at hindi hapon (^_^ madadali mo din yan... more Patient lng at kunting analisa


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Re: TCL 21189U NO CONTINOUS POWER

Post by jeb2610 on Sat Jan 12, 2013 3:35 pm

master ultra may nagsabotahe ng repair may nagpalipit ng ecap kaya nagshorted ung 8vdc nya supply sa 5vdc,,,ok na sya back to same problem,,,ayaw mag continous ung power napalitan ko na mga ecap,,,pag tinanggal ko load papunta fbt ok ang voltahe nya na 106vdc,,nakapirmis lang sya,,,pag kinabit ko na ay magppicture sya ng 5sec lang namamatay uli,,di kaya sa eeprom na kinabit ko,,,same model din same pcb nilipat ko sya kaya nagkapower kaso 5sec lang...o kaya naman sa fbt na,,,try ko kaya ilipat ng fbt,,pero maganda namn ang oscilation ng fbt..anu kaya maganda nito,,,master may cp no. kaba? masmagand kung smart thanks

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Re: TCL 21189U NO CONTINOUS POWER

Post by jeb2610 on Sat Jan 12, 2013 4:17 pm

master ok lang ba na desolder ko ung xray protect nya,,,,nung desolder ko nagpower ng deretso..ok lang kaya yun

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Re: TCL 21189U NO CONTINOUS POWER

Post by jeb2610 on Sat Jan 12, 2013 5:16 pm

mga master ok na ung tv,,ganito po ginawa ko,,,nagpalit ako ng eeprom nagpower sya pero namamatay,,,then kinabukasan nawalan ng power wala syang 8vdc supply sa stby 5vdc may nakita ako na nakapalipit na ecap malapit sa jungle,,nagpower uli then namamatay uli ok naman ang secondary voltage nya 106vdc within 5sec namamatay sya,,,then desolder ko xray protect gumana sya ng normal,,,isolate ko xray protect den trace ko linya may nakita ako ecap na nakaparalell sa ground then tinanggal ko nakita ko palipit din pala ung paa kaya nung binalik ko,,nag normal na lahat,,di na sya namamatay,,,ang suspect ko ay may nagsasabotahe sa tv na ginagawa ko may pumalipit ng ecap kaya nagluluko ang system nya,,,salamat na lang at nrepair ko,,,1month na sa akin tv na ito,,,,,salamat sa inyu mga master sa uulitin....job well done na po,,,thanks

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Re: TCL 21189U NO CONTINOUS POWER

Post by ultrasonic™ on Mon Jan 14, 2013 1:14 pm


oie congratz sis.. salbahis pla mga co tech mo.. charge XP yan..
na wag basta basta mgtitiwala sa mga kasama mo (^_^

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Re: TCL 21189U NO CONTINOUS POWER

Post by Electro on Thu Jan 17, 2013 11:28 am


congrats master

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Re: TCL 21189U NO CONTINOUS POWER

Post by Lenaren on Sun Jan 20, 2013 4:04 pm

Dalawa lang yan master, either sinusubukan ka lang nyan o talagang nang-iinis!! BTW congrats!!

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Re: TCL 21189U NO CONTINOUS POWER

Post by ultrasonic™ on Mon Jan 21, 2013 11:06 am


tama aware

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Re: TCL 21189U NO CONTINOUS POWER

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