SOURCE: Samsung LCD TV LN40A650 - Service Mode
1. Turn off the TV
2. Press "info" then "Menu" then "mute" and then "Power" on your remote (As fast as possible).
The TV will now start up in Service Mode
Breinholm / Denmark
SOURCE: TV PANASONIC-SERVICE MENU
press "MUTE" on remote control and "V" on TV set, when the
sharpness is set on minimum and programme position is on 99.
5. Horizontal Shift H-CTR 31 Optimum setting.
6. Horizontal parallelogram H-PAR 034 {034} [-] Optimum setting.
7. Horizontal bow H-BOW 031 {031} [-] Optimum setting.
SOURCE: how do i enter the service menu on a Samsung LN46B550 tv
Try: when in standby press press info, menu, mute then standby
Reference: http://www.avsforum.com/avs-vb/archive/index.php/t-1126988-p-2.html
SOURCE: How to enter service menu for videocon VLL32FBA
Videocon LCD TV service mode -menu >8532(or) menu>down>8532(or)menu>soundmode>8532
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