Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

[SOLVED] My ONIDA 21 IQ TV has lost red colour

Status
Not open for further replies.

anand_jha_30

Member level 2
Joined
Oct 29, 2010
Messages
50
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,288
Activity points
1,615
I have an ONIDA 21 IQ CRT television. Model no is "21IQMST1". The problem is that somehow video has lost its red component. Everything looks yellowish. I am sure that problem is with TV because even the inbuilt games have lost their red colour. I purchased it in 2004. It uses composite video.

Thanks in advance......
 

pranam77

Advanced Member level 5
Joined
Apr 22, 2008
Messages
2,786
Helped
552
Reputation
1,102
Reaction score
371
Trophy points
1,363
Location
INDIA
Activity points
16,417
I have an ONIDA 21 IQ CRT television. Model no is "21IQMST1". The problem is that somehow video has lost its red component. Everything looks yellowish. I am sure that problem is with TV because even the inbuilt games have lost their red colour. I purchased it in 2004. It uses composite video. Thanks in advance......
Before you get any further replies here, will you clarify how is your querry related to Onida TV is posted in "Analog IC Design & Layout" forum section.
NO replies here untill the OP clarifies.
 

anand_jha_30

Member level 2
Joined
Oct 29, 2010
Messages
50
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,288
Activity points
1,615
Oh! Sorry for that.......I just realised that. What should I do now.....
 

baraka42

Full Member level 3
Joined
May 9, 2006
Messages
170
Helped
185
Reputation
372
Reaction score
170
Trophy points
1,323
Location
I N D I A
Activity points
2,163
@anand,

check R G B cathod voltage at crt pin. it may nearly all three same. where is more difference there is problem. check all three video transister voltage at crt pcb. it is possible that there is red colour gun of crt may be weak.
if you have no exp. abt. it. pls. go to any tv repairer.
 
Last edited:

KJ6EAD

Advanced Member level 3
Joined
Oct 6, 2010
Messages
709
Helped
196
Reputation
392
Reaction score
194
Trophy points
1,323
Location
Earth
Activity points
5,092
The most common cause is the failure of the red gun transistor on the neck PCB.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top