TCL 2027 problem

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Re: TCL 2027 problem

Post by willyboy on Wed Jan 04, 2012 4:22 pm

boss..online bakayo sa yahoo.. pa addnman.. wolf_x03

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Re: TCL 2027 problem

Post by willyboy on Wed Jan 04, 2012 4:25 pm

boss..paano bakuhaan ng voltahe yung vertical?

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Re: TCL 2027 problem

Post by Electro on Wed Jan 04, 2012 4:49 pm

gamit kayo ng tester master set mo sa 50V DC
http://web.tradekorea.com/upload_file/prod/marketing/mkt_files/new_company//chekman1/img_en/o_P296444.jpg

lagay mo ang black probe sa ground . iyong parang alambre sa gild ng picture tube
http://4.bp.blogspot.com/_8jmGzkz4xgY/TTf-kQnNrkI/AAAAAAAAAMI/qSTqUxIprQA/s1600/crt-turner+ground.bmp

iyong red probe master itusok mo sa pin 3 at pin6 ng ta8304. tignan natin kong may masusukat ba tayong 24v

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Re: TCL 2027 problem

Post by Electro on Wed Jan 04, 2012 4:51 pm


sige master add kita

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Re: TCL 2027 problem

Post by willyboy on Wed Jan 04, 2012 5:02 pm

bossing walang 24volt.nilagay ko yung isang probe sa salpakanng antenaeatyung isa naman sa pin 3 at 6

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Re: TCL 2027 problem

Post by Electro on Wed Jan 04, 2012 5:16 pm



master may pinost na pala sina master ultrasonic™ sa page 1
sundan niyo ang connection pabalik sa flyback. baka open ang resistor r405

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Re: TCL 2027 problem

Post by Electro on Wed Jan 04, 2012 5:20 pm


master pwedeng ding shorted ang vertical ic mo kaya walang 24V. subukan mong unsolder ang pin 3 at pin6 ng vertical at sukatin ulit. pag wala pa ein pwede open talaga ang fuse resistor sa gawing flybak

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Re: TCL 2027 problem

Post by willyboy on Wed Jan 04, 2012 5:33 pm

master.. bago na poyung verticalIC ko..kakakbit kolang kanina umaga kasi suspect ko din yun..tapos ok nman yung r405 at bago na din yung ecaps na 470uf/35v atok din yung diode nya..


ganun pa din..kaso bakit 2 thin horizontal line sa gitna ng tv ko.
ssearch koi usually nakikita ko1 thin horizontal line lang problema..

saakin 2

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Re: TCL 2027 problem

Post by Electro on Wed Jan 04, 2012 5:37 pm

yan din nga ang pinagtataka ko master kong bakit dalawa ang line. scratch iyong isa palang kasi ang nadanasan ko

sanay nandito ang ibang mga master

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Re: TCL 2027 problem

Post by willyboy on Wed Jan 04, 2012 5:49 pm

2 thin line ito namaliit lang pagitan ng isat isa. 2 thin horizontal line ito bossing..sa gitnamismo..


wat kaya dahilan nito

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Re: TCL 2027 problem

Post by Electro on Wed Jan 04, 2012 5:55 pm


vertical pa rin talaga siguro iyan master willy

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Re: TCL 2027 problem

Post by willyboy on Wed Jan 04, 2012 6:27 pm

bossing as per your adivice, cut ko yung line ng d301 going topin 3.. so pin 3 nalang at yung line ng +c320 100UF/35v going to pin6
so bare pin 3 at 6 nalang..at kinabitan ko sya ng line12v na kinuha ko sa c382. na thingking na baka bumuka kahit konti..
pero ganun pa din.

boss.. bago vertical ic nito. at pag nakita ko naline lang..patay ko agad..di ko binababad..

any suggestionmga brod

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Re: TCL 2027 problem

Post by willyboy on Thu Jan 05, 2012 11:35 am

mgabrod...horizontal line talaga sa gitna at color blue sya..2 na thin horizonta lblue line.

now...papalitan kolahat ng rectifying diode kahit sa tester ko ay ok.. sana ..ma ok na

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Re: TCL 2027 problem

Post by ultrasonic™ on Thu Jan 05, 2012 6:33 pm

@jeff a.k.a electro (^_^
pa edit ng mga post mu lalot sa mga image link
ilalabas ko lng
+1 ka nga pla.. keep it up

@TS a.k.a willyboy (^_^
now regarding sa latest update mu... dhil wla kang vert. supply na nasusukat sa pin3 at 6. ay yan ang dhilan kng bakit di gumagana ang vertcal drive mu. jan ka dpat tumu-on ngyon. tama si jeff sa mga advice nya sau. nasa vertcal section pa rin ang salarin jan. lalot ganito ang appearance na naaaninag mu






kng duda sa 1st attempt na pnagsukatan ay gawin mung ground reference ang pin1 ng ic. pg wla ka pa ring V reading. mlamang sira ang rectifier diode(d402), F.Resist (r405) o mismung FBT ang wlang bnibigay na supply output.

kailangan mu munang mapalabas ang 24V. o gumamit ng external supply kng maaari png-confirm lng

try mu din ikabit ung dati mung vertcal ic. pngbasehan mu.






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Re: TCL 2027 problem

Post by willyboy on Thu Jan 05, 2012 8:53 pm

boss. if ever pd ko ba masukat mismo yung FBT kung naglalabas sya ng 24v bago sya pumasok sa resistorat diode??

boss paano???

san ako mag lagay ng test probe.??

if confirm na sira FBT..mahirap at delikado ba magpalit nito

estimate po..magkano kaya?

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Re: TCL 2027 problem

Post by willyboy on Thu Jan 05, 2012 8:56 pm

nga pla boss ultasonic..sa TCL ko 2 thin line like sa una picture..kaso dun sa una picture eh isa lang yun..sa akin 2.

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Re: TCL 2027 problem

Post by ultrasonic™ on Fri Jan 06, 2012 1:50 pm

for me lng ha.. wag munang tumalon sa ibang conclusion kng di pa naaayos ang vertcal supply....

sa ganyang trouble kailngan ng maayos at matino tlga ang multitester (dapat accurate/hndi sinungalin (^_^ ) lalot medjo di mu pa masxadong gamay ang repair. bka maligaw ka lalo

willyboy wrote:boss. if ever pd ko ba masukat mismo yung FBT kung naglalabas sya ng 24v bago sya pumasok sa resistorat diode??
boss paano???
san ako mag lagay ng test probe.??
if confirm na sira FBT..mahirap at delikado ba magpalit nito
estimate po..magkano kaya?

yapz pwde mung matest ang mismung output ng FBT (pin6) kng may bnbigay bang 24V AC --> AC pa yan kasi di pa dumaan ng diode

lagay mu lng ang black probe ng tester mu sa chassis ground
at red probe nmn sa mismung pin6 ng FBT (flyback) ayon sa diagram na hawak natin.
then set mu sa AC voltmeter 50VAC. or 250V
then basahin mu sa itaas na binox ko kng may reading bang makukuha
(red line per division)





pero bago yan... mas accurate kng... ihihinang or e-po-float mu ang mga fusible resist at rectifier na dadaanan nya.. pra maisolate ang buong circuit. gaya nito



then update ka ulit

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Re: TCL 2027 problem

Post by Electro on Sat Jan 07, 2012 2:57 pm


nandito na pala si master ultrasonic™
salamat sa point
sundan mo lang siya master willy

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Re: TCL 2027 problem

Post by Electro on Sat Jan 07, 2012 3:32 pm


master willy tungkol doon sa 12v na nilagay mo. nasukat mo ba na hindi bumagsak ang 12V ng naikabit niyo sa ic

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Re: TCL 2027 problem

Post by willyboy on Sun Jan 08, 2012 12:32 pm

goodam sainyo mga Master... im back uli..may work lang kahapon...
regarding sa 12VDC..
- hinang up ko isang paa ng resistor R4039 ( para putulin ko supply ng 24V na galing FBT )
- gumawa ako ng jumper at hinang ko sa tinanggal kong paa na resistor to supply 12v galing sa T803. (para DC parin supply )

- check ko DC supply 12vdc sa PIN1 at PIN 6 ng IC301 TA8403..at 12Volt DC nakuha ko reading ..means.. ok yung resistor at diode at line supply papunta supply vertical IC.

- horizontal thin Line pa rinmga repapips..

- alisin ko yung 12Vna galing T803 at ibalik ko sa FBT.. ( dikopakasi na check Voltage uli.,,, (nag iba ako ng tester ( digital wheeler )
ginamit ko kasi pang tester dati eh yung multiAmeter ..may OHMS.diode tester din kasi yun.

Update ko kayo uli..salamat.. sa walang sawang technical Advice

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Re: TCL 2027 problem

Post by willyboy on Sun Jan 08, 2012 12:42 pm

mga brod...nung binalik ko yung supply na 24v galing FBT andtest PIN1 at PIN6ng ICTA8403..i got 24VDC..means ok OUTPUT ng FBT at yung diode at tester.

-nga pala mga brod.nag tester din ako using old VERTCAL IC TA8403at yung new...( same result)

ganun pa din..horizontal thin line pa rin.


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Re: TCL 2027 problem

Post by willyboy on Sun Jan 08, 2012 1:42 pm

mga brod..salamat uli sa inyo..nakuha ko na problema.. yung PIN 1 and pin 2 ng TA8403 eh12vdc lang na dapat eh 24Vdc.

i check and i found 1 open resistor R306A 47K . and pinalitan ko na rin yung C306 470UF/25v at c305 2.2UF/50V.

Ayun...BUHAY na uli TV ko... salamat..


Lesson learn... never use MultiAmmeter sa Electronic Testing..
nakitako open sa Digital Wheeler MUltitester..Tnx samga advice..

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Re: TCL 2027 problem

Post by willyboy on Sun Jan 08, 2012 4:08 pm

mga repapips.... pahabol naproblema,,, Question walang OSD... bat ganun??

may palabas..gumaganachanelat volume.pati video..kaso..wala OSD.
dimo makita MENU

wala syang display na wat chanel na? etc..
any idea

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Re: TCL 2027 problem

Post by willyboy on Sun Jan 08, 2012 5:39 pm

mga brod..ok napla..cold solder sa Jumper 230 pala problema.

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Re: TCL 2027 problem

Post by Electro on Tue Jan 10, 2012 10:33 am


congrats master congratulations

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Re: TCL 2027 problem

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