Mecaniko Mobiles

Gsm Forum North Cotabato
HomePortalRegisterLog in
Log in
Log in automatically: 
:: I forgot my password
Similar topics

Display results as :
Rechercher Advanced Search
Latest topics
» Free PPV Sports Live Streaming
Wed Nov 09, 2016 2:53 pm by rhadz

» Mecaniko Mobiles EB
Wed Nov 09, 2016 2:49 pm by rhadz

» LOGO ng forum natin pwede ba ito?
Wed Nov 09, 2016 2:47 pm by rhadz

» Newbie po from davao
Tue Jan 21, 2014 4:54 am by rhadz

» newest member
Tue Jan 21, 2014 4:54 am by rhadz

» 1st GRAND-EYEBALL..Pag-usapan natin.
Sun Aug 18, 2013 3:51 pm by rhadz

» Happy Birth Day Boss joizep
Sun Nov 11, 2012 1:42 pm by rhadz

» newbie lang ho!
Sun Nov 11, 2012 1:37 pm by rhadz

» post your mp5 problems here....
Sun Apr 08, 2012 4:36 am by DJ Fix Image

Social bookmarking
Social bookmarking digg  Social bookmarking delicious  Social bookmarking reddit  Social bookmarking stumbleupon  Social bookmarking slashdot  Social bookmarking yahoo  Social bookmarking google  Social bookmarking blogmarks  Social bookmarking live      

Bookmark and share the address of
Mecaniko Mobiles on your social bookmarking website
Top posters
We have 529 registered users
The newest registered user is cliftdarso

Our users have posted a total of 750 messages in 238 subjects
Buy and Sell Philippines :
Make money with clixsense


T.V repair tips

View previous topic View next topic Go down 
Author Message

Posts : 30
Join date : 2009-08-02
Age : 34
Location : manila davao city

PostSubject: T.V repair tips   Sun Aug 02, 2009 8:35 am

Problem: kung ang VHF walang channel at ang UHF ay may channel
walang duda ang sira ay T.V Tuner... T.V Tuner must be replace...

Problem: kung ang T.V ay may ruster picture only at medyo malabo at ang sound ok for all channel try to check T.V tuner or adjust the trimmer of FBT... afro afro
Back to top Go down

Posts : 153
Join date : 2009-04-04
Age : 43
Location : Jordan

PostSubject: Re: T.V repair tips   Tue Aug 04, 2009 5:59 pm

good job master...keep sharing your knowlegde...marami kang matulongan...
Back to top Go down

Posts : 30
Join date : 2009-08-02
Age : 34
Location : manila davao city

PostSubject: Re: T.V repair tips   Wed Aug 05, 2009 1:41 pm

Sony TV Model: KV2565

Dead with H. output short circuit, replacement blows short again
First check power area and repair dry joints then change all high voltage (PF value) capacitors in the horizontal section, this fixed the problem...ok..

Panasonic TV Model: CT20G12V
Problem: Dead
try to check STR58041 chip... Cool Cool
Back to top Go down

Posts : 3
Join date : 2011-12-24

PostSubject: Re: T.V repair tips   Fri Dec 30, 2011 9:25 am

The other day my old 16" CRT television died, and was wondering if anyone has repair tips for common / easy-to-find failures.

At the time it was hooked up to an old Sinclair ZX81 homecomputer, running a demo that did some funky things with the sync signals. I suspect that helped push this 10 year old TV over the edge - suddenly it said 'poof' and no image since... (black screen) But it might have been coincidence - this TV has seen countless work hours.

When powered on, I can hear a ticking sound (roughly once/second), and the standby/power LED flashes in same rhythm. But no sparks visible or anything like that.

I inspected insides carefully, there's no obvious burned parts, nothing smelling bad/melted, no blackened spots on circuit board, electrolytic capacitors all look fine. In fact, for a 10 year old TV the insides look relatively 'clean'... There's 1 main fuse, it's still okay. I can do some basic checks, like: low voltage supplies, spotted an NTC somewhere that looks like it's used as a fuse, bad solder contacts etc, but that's about it. Have only multimeter, no access to scope unfortunately. Also I have schematic (on paper), don't know if that's online anywhere.

I don't plan to invest much time/money into it as these things are considered near-worthless these days - people put them on roadside (still working sometimes), or free to pick up. It's just that right now an old CRT television is enough to cover my needs, and I don't like tossing 10+ kg. equipment if a $0,50 component replacement could fix it.
Back to top Go down
Sponsored content

PostSubject: Re: T.V repair tips   

Back to top Go down

T.V repair tips

View previous topic View next topic Back to top 
Page 1 of 1

Permissions in this forum: You cannot reply to topics in this forum
Mecaniko Mobiles :: General Electronics :: Home Appliances -
Create a forum on Forumotion | © phpBB | Free forum support | Contact | Report an abuse |