Sony kv-21da75 no power

Page 1 of 2 1, 2  Next

View previous topic View next topic Go down

Sony kv-21da75 no power

Post by Emorej6 on Sat Nov 15, 2014 8:21 pm

,pahelp mga master ,ang problema po no power wala pong b+ ,pati mga low voltage ,ayaw magclik ng relay . Pero my lumalabas na 7v at 3v dun sa transformer ng low voltage nagpalit nko ng transformer ..
Eto po mga nagawa ko .
Resolder
direct sub nung transistor malapit sa uoc ,chip transistor sunog na kc ang board. .
Check all components na my kinalaman sa power. Sa paligid ng transformer.

Pg po ne jumper ang relay nagkakaroon po ng b+ 85v kht nkahang ang h out ..Wala pong h pulse ang base ..Pati mga low voltage mababa 7805 =3v 7809= 4v ,

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

,kng my diagram kayo pashare mga master wala kasi akong mahanap e .

,tia mga master.

Emorej6
AA Battery
AA Battery

Posts : 121
Join date : 2014-09-05
Age : 20
Location : Mindoro

Back to top Go down

Re: Sony kv-21da75 no power

Post by Emorej6 on Sun Nov 16, 2014 7:01 pm

,help mga maste . .

,asan na kau ?

Emorej6
AA Battery
AA Battery

Posts : 121
Join date : 2014-09-05
Age : 20
Location : Mindoro

Back to top Go down

Re: Sony kv-21da75 no power

Post by DJFEL on Sun Nov 16, 2014 7:23 pm

my led disply ba to sis...

na chik mo ba lahat ng parts ng primary..

DJFEL
D Battery
D Battery

Posts : 1722
Join date : 2012-11-21
Age : 34
Location : SIUIJOR

Back to top Go down

Re: Sony kv-21da75 no power

Post by DJFEL on Sun Nov 16, 2014 7:28 pm

mababa yong supply ng 7805 =3v 7809= 4v...chik yong pinang da-anan ng 7805 at 7809 my sira dyan..

DJFEL
D Battery
D Battery

Posts : 1722
Join date : 2012-11-21
Age : 34
Location : SIUIJOR

Back to top Go down

Re: Sony kv-21da75 no power

Post by Electro on Mon Nov 17, 2014 12:22 pm

baka mababa ang input ng 9v mo master

Electro
D Battery
D Battery

Posts : 1433
Join date : 2010-08-26
Age : 27
Location : Calinan Davao City

Back to top Go down

Re: Sony kv-21da75 no power

Post by alvinquimbo on Mon Nov 17, 2014 8:00 pm

agree check mo muna sis kung ilan ang input mo para sa low voltage..

alvinquimbo
D Battery
D Battery

Posts : 723
Join date : 2014-03-29
Age : 28
Location : Davao City

Back to top Go down

Re: Sony kv-21da75 no power

Post by Electro on Tue Nov 18, 2014 9:39 am

baka problemado din ang 7809 master. subukan mo kaya tanggalin muna master . tapos test mo ang input kong lampas ba ng 12v

Electro
D Battery
D Battery

Posts : 1433
Join date : 2010-08-26
Age : 27
Location : Calinan Davao City

Back to top Go down

Re: Sony kv-21da75 no power

Post by Emorej6 on Tue Nov 18, 2014 2:56 pm

,mga master mababa dn ang input ,pg. Nehung ung papuntang chip transistor ok naman ,my shorted kc hndi ko lng makita ,,my nakuha na akong chip diode n open ..,master my problema naputol yung isang pin ng ic yung chip ,sagad sagad hndi ko na maibalik tapos ngaun nawala na ,pwede po kaya etong gamitan ng china board ?

Emorej6
AA Battery
AA Battery

Posts : 121
Join date : 2014-09-05
Age : 20
Location : Mindoro

Back to top Go down

Re: Sony kv-21da75 no power

Post by triac on Wed Nov 19, 2014 8:40 am

master emorej6 hindi ako expert sa china board ang sabi ng iba pwede daw,wait nalang tayo sa mga expert ng china board...ang sony kasi napakanipis ng layout at saka napakasensitive konting ingat para hindi madesgarya..baka may problema ka pa sa primary side ng regulator kung wala naman check mo yung secondary,kung may short paki check nalang ang  H-out at ang lahat ng zener diode kahit malayo pa sa suspected na area mo..sana may schematic diagram ka para mas madaling mag trace...i hope makatulong yan..

triac
D Battery
D Battery

Posts : 683
Join date : 2011-04-28

Back to top Go down

Re: Sony kv-21da75 no power

Post by DJFEL on Wed Nov 19, 2014 3:01 pm

japayoki tong sony na to...wlang akong ma kitang mapa neto..paki post nalang picture neto para ma tombok agad...

DJFEL
D Battery
D Battery

Posts : 1722
Join date : 2012-11-21
Age : 34
Location : SIUIJOR

Back to top Go down

Re: Sony kv-21da75 no power

Post by Electro on Wed Nov 19, 2014 4:30 pm

baka leak ang diode niya master

Electro
D Battery
D Battery

Posts : 1433
Join date : 2010-08-26
Age : 27
Location : Calinan Davao City

Back to top Go down

Re: Sony kv-21da75 no power

Post by alvinquimbo on Wed Nov 19, 2014 7:45 pm

@ts may sinabi naman si sis baddy nito na pwede yan gamitin ng china board if ever ala na talaga..gamitin mo lang crt socket ng sony..

alvinquimbo
D Battery
D Battery

Posts : 723
Join date : 2014-03-29
Age : 28
Location : Davao City

Back to top Go down

Re: Sony kv-21da75 no power

Post by Emorej6 on Sat Nov 22, 2014 7:02 am

,wala na etong pag asa mga master kasi my kulang na hindi ko na maikabit ung naputol na ic nahugot kasi ..Tapos my kapareho ako ditong board wlang ic na gnamit dun sa isa same chassis naman ..

,kung un pdn ang gagamitin na crt panu ung ik master dba wla ytang ik ang china board ? Txaka ung sa furity ring ? San naman ikakabit kung ung crt ng china ang ikakabit pagka alam ko hndi un magkakatao dahil kelangan masuplayan muna ung furity ..,my winding dn kasi ung furity ring..Ung sa neck ng crt.

Emorej6
AA Battery
AA Battery

Posts : 121
Join date : 2014-09-05
Age : 20
Location : Mindoro

Back to top Go down

Re: Sony kv-21da75 no power

Post by Electro on Sat Nov 22, 2014 10:13 am

master ang ik ay nasa jungle po yan. pag nagpalit ng ibang board ay di mo na yan poproblemahin.

Electro
D Battery
D Battery

Posts : 1433
Join date : 2010-08-26
Age : 27
Location : Calinan Davao City

Back to top Go down

Re: Sony kv-21da75 no power

Post by ultrasonic™ on Sat Nov 22, 2014 5:27 pm

^ tama... yan ang magpapaprotect jan. sa sony board

abwt nmn sa china board.. pwde yan bastat e boost nyu lng ang g2 nyu.. pag kakapusin

_________________
6th member of STTM
former 2nd member


im always walking on the rain so that no one could see me crying

ultrasonic™
D Battery
D Battery

Posts : 4121
Join date : 2010-08-19
Age : 30
Location : Davao City

Back to top Go down

Re: Sony kv-21da75 no power

Post by Emorej6 on Sun Nov 23, 2014 10:03 pm

,mga master yun po bang crt board paren ang gagamitn pg nagpalit ng chinaboard ? ?Panu naman po yung deguasing na nakaikot sa yoke ? Pwede po bang wala na un ? Bukod po kasi un ..Bali 2 ang degausing ..

Emorej6
AA Battery
AA Battery

Posts : 121
Join date : 2014-09-05
Age : 20
Location : Mindoro

Back to top Go down

Re: Sony kv-21da75 no power

Post by DJFEL on Mon Nov 24, 2014 9:07 am

yaps...pang chi na bord ang gagamiten mo...

na araro mo ba lahat ng secondary neto..ok ba vertical neto..

DJFEL
D Battery
D Battery

Posts : 1722
Join date : 2012-11-21
Age : 34
Location : SIUIJOR

Back to top Go down

Re: Sony kv-21da75 no power

Post by Emorej6 on Mon Nov 24, 2014 8:28 pm

pwede po bng yung sa sony n ang ilagay n crt board
??

nawala n po kc master ung ic e kea wla ng pg asa

Emorej6
AA Battery
AA Battery

Posts : 121
Join date : 2014-09-05
Age : 20
Location : Mindoro

Back to top Go down

Re: Sony kv-21da75 no power

Post by DJFEL on Tue Nov 25, 2014 8:03 am

pang naka post ka ng pic nang bord na to para ma daling ma tombok kong sa-an bagohin CRT at yong G2 nyan mataas ang supply...kaelangan mo dag2x wending neto..

DJFEL
D Battery
D Battery

Posts : 1722
Join date : 2012-11-21
Age : 34
Location : SIUIJOR

Back to top Go down

Re: Sony kv-21da75 no power

Post by Emorej6 on Tue Nov 25, 2014 3:43 pm

,pano magdagdag ng supply ng g2 master ? Bka pwedeng pihitn nalang mga trimmer kc parepareho naman ytang 1kv ang g2 e..

Emorej6
AA Battery
AA Battery

Posts : 121
Join date : 2014-09-05
Age : 20
Location : Mindoro

Back to top Go down

Re: Sony kv-21da75 no power

Post by baddypepito on Tue Nov 25, 2014 4:46 pm

reminder lang sis ha... hindi kc compatible ang chinabord sa tube na sony... ang mangyayari kc jan... laging may problema ang board ng china kpag sony ang picture tube.. naabotan ko ang mga tsino na nag.asembol gmit ang sony picture tube ang daming bakjob.. kaya simula nuon... tinigil na nila ang pag.asembol using sony picture tube...

pro kung ok ka lang sa hassle na kanyang ibibigay in the future,,,, wala yang problema.. Smile Smile Smile

baddypepito
C Battery
C Battery

Posts : 293
Join date : 2012-08-08
Age : 29
Location : mandaue city cebu

Back to top Go down

Re: Sony kv-21da75 no power

Post by Emorej6 on Wed Nov 26, 2014 6:32 am

,cge master thankz sa paalala pero etry ko pa din .. .

Emorej6
AA Battery
AA Battery

Posts : 121
Join date : 2014-09-05
Age : 20
Location : Mindoro

Back to top Go down

Re: Sony kv-21da75 no power

Post by Electro on Wed Nov 26, 2014 9:14 am

abang lang kami master

Electro
D Battery
D Battery

Posts : 1433
Join date : 2010-08-26
Age : 27
Location : Calinan Davao City

Back to top Go down

Re: Sony kv-21da75 no power

Post by Emorej6 on Thu Nov 27, 2014 6:48 am

,cge mga master ,pg nakabili ako mag updit ako.

Emorej6
AA Battery
AA Battery

Posts : 121
Join date : 2014-09-05
Age : 20
Location : Mindoro

Back to top Go down

Re: Sony kv-21da75 no power

Post by triac on Thu Nov 27, 2014 8:56 am

baddypepito wrote:reminder lang sis ha...  hindi kc compatible ang chinabord sa tube na sony... ang mangyayari kc jan... laging may problema ang board ng china kpag sony ang picture tube.. naabotan ko ang mga tsino na nag.asembol gmit ang sony picture tube ang daming bakjob.. kaya simula nuon... tinigil na nila ang pag.asembol using sony picture tube...

pro kung ok ka lang sa hassle na kanyang ibibigay in the future,,,, wala yang problema.. Smile Smile 
hindi pa talaga ok ang china board.salamat sa info sis..

triac
D Battery
D Battery

Posts : 683
Join date : 2011-04-28

Back to top Go down

Re: Sony kv-21da75 no power

Post by Sponsored content Today at 6:28 pm


Sponsored content


Back to top Go down

Page 1 of 2 1, 2  Next

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum