Forum Index

Rules  | Points  | Add...  | Recent posts  | Search | Register | Log in



Sony KV21M3D , colour problem with composite signal,RGB OK..


  Main Page -> Forum Index -> TV Service ->Sony KV21M3D , colour problem with composite signal,RGB OK.. Post new topic  Reply to topic 
Author
Hide the left column
Show left column Message
Pera
Level 10
Joined: 20 May 2002
Posts: 7
Pera
Level 10
Post#1 07 Apr 2008 23:59  Topic author   

Sony KV21M3D , colour problem with composite signal,RGB OK..


Hello.Problem is that TV set have dark screen, and like inverted colors (red/blue).On screen display have normal colors, as well as RGB signal from SCART.But, from composite signal or tuner picture is dark.I can change brightness,contrast and colour from r/c, and when it's supplied with RGB signal TV is having normal picture.
I changed RGB matrix MC44002P, also checked all transistors inside the mixing circuit (where composite and tuner signal are mixed - sorry for expression,I am not native English speaking).There is one DTC144,2SC1740 and some few transistors more.I checked also diodes around, as well as diodes around SCART, but no improvement.If anyone have any idea what it could be please post here or send me a PM.

Helpful post? + 0
Back to top

Google Adsense
Google


Back to top
Pera
Level 10
Joined: 20 May 2002
Posts: 7
Pera
Level 10
Post#2 08 Apr 2008 15:40  Topic author   

Re: Sony KV21M3D , colour problem with composite signal,RGB


Noone?:cry:

Helpful post? + 0
Back to top

Google Adsense
Google


Back to top
Pera
Level 10
Joined: 20 May 2002
Posts: 7
Pera
Level 10
Post#3 11 Apr 2008 07:14  Topic author   

Re: Sony KV21M3D , colour problem with composite signal,RGB


I still didn't solve this TV, if anyone knows where the problem could be, please post here...

Helpful post? + 0
Back to top

Google Adsense
Google


Back to top
Lucas
Level 19
Location: Wa-wa
Joined: 11 Feb 2003
Posts: 368
Helped: 19
Post rating: 1
Lucas
Level 19
Post#4 11 Apr 2008 10:55    

Re: Sony KV21M3D , colour problem with composite signal,RGB


Hello , probably TV with composite signal is in NTSC ( inverterd colours ) or in SECAM FRANCE.
Please change memory and set up TV in service mode.Lucas

Helpful post? + 0
Back to top
Post new topic  Reply to topic     Main Page -> Forum Index -> TV Service -> Sony KV21M3D , colour problem with composite signal,RGB OK..
Page 1 of 1

Similar topics to sony KV21M3D , colour problem with composite signal,RGB OK..

Sony Bravia klv-37S400A colour problem (6)
Composite video ===>> RGB (8)
Sygnał Composite video na stare RGB (1)
Sony Bravia KDL-23B4050 LCD Digital Colour TV (4)
Sony KV-32FQ86 problem z RGB (5)
Help with a sony kv-m2171k (2)
Problem z LG F900P - no signal (2)
Problem with my Hifi system Panasonic SA-AK210 (2)
LG 50PJ350R-TA - PROBLEM IS SHUTDOWN WITH RANDOM WAY (2)
Problem z monitorem lcd ( no signal ) (2)


Switch to mobile version Switch to version for desktops

Administrator || Moderators || Forum Rules || General Rules || Cookies information || Editors || Contact for companies || Contact

Page generation time: 0.047 seconds