Riddled TV Repair Forum
Service Menu and Manual Schematics
 
   
 FAQFAQ   SearchSearch   RegisterRegister 
   Log inLog in 
Sharp CX51B2 not able to lock in channel    
Post new topic   Reply to topic    Riddled TV Repair Forum Index -> TV Repair
 
Author Message
fijiboy



Joined: 12 Jul 2009
Posts: 3

PostPosted: Sun Jul 12, 2009 3:10 am    Post subject: Sharp CX51B2 not able to lock in channel Reply with quote

hi
have a sharp model t.v that does not seem able to get all the t.v channels
at the moment iam only getting one t.v channel ,while the rest seems to drift,does not seem to lock in and simply does not show on the screen.

being a novice electroincs person..i take it the RF tuner(silver mettalic box) could be bad or have a dry joint.

i have re-soldered all the joints around the RF tuner and also open the tuner and resoldered the inside of it as well..this has not seemed to help at all.

There seems to a zener diode close to the tuner the seems to be giving a stragne reading ...is this could be a problem?

what components should i be looking for..should i change all the electroic caps around the tuner and the resistor as well..before i chanfe the tuner as the tuner is quite expensive at the moment.

Thanks
ash
Google

PostPost subject: Advertisement

JTS1957



Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away

PostPosted: Sun Jul 12, 2009 12:37 pm    Post subject: Reply with quote

You are SURE you DO NOT have an antenna / signal / signal strength problem?

You HAVE, for example, taken another, similarly equipped set, placed it in the SAME location, and connected the SAME antenna / antenna lead to it, and it works fine on every station?
fijiboy



Joined: 12 Jul 2009
Posts: 3

PostPosted: Sun Jul 12, 2009 4:46 pm    Post subject: Reply with quote

hi
yes i have another t.v in the same room that just works fine
JTS1957



Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away

PostPosted: Sun Jul 12, 2009 4:59 pm    Post subject: Reply with quote

Analog or Digital reception?
fijiboy



Joined: 12 Jul 2009
Posts: 3

PostPosted: Sun Jul 12, 2009 5:12 pm    Post subject: Reply with quote

analogue recpt...
Google

PostPost subject: Advertisement

Display posts from previous:   
Post new topic   Reply to topic    Riddled TV Repair Forum Index -> TV Repair All times are GMT - 6 Hours
Page 1 of 1

 


Disclaimer: All information provided by RiddledTV is strictly for information purposes only. Please observe all warnings displayed on your electronic
devices. This information should only be used to help diagnose work, and all service should be performed by a qualified technician.
Privacy Policy       Copyright © 2020 RiddledTV.com       Advertise on RiddedTV.com