Thursday, February 27, 2014

HOW TO ENETER SERVICE MODE TO MURATHA TV

                                               

MURATHA CHASIS T-255[SANYO]
MODEL: MARKET KIT
Entering into service mode

Press menu key on tv set and sleep key on remote handset simultaneously, again press sleep key on the remote handset.

Service mode keys

·           to change pages press cruser left/right keys
·           to select parameters within page press cursor up/down keys

service mode adjsutments

1          Enter into service mode
2          Select page 1
3          Adjsut R, G and B bias values to 127
4          Adjust r drive to 63, g drive to 8, b drive to 63.
5          Select page 5.
6          Set cross b/w parameter to 1.  remove all inputs to kill video interference.
7          Go to v-kill parameter and change value to 1.  ypu will get a h-line
8          Adjsut the screen voltage to get just visible horizontal line.
9          Now adjust through programme keys [1] &[4], [2] &[5], [3] & [6] bias for r,g,b respectively on the remote.  Adjust to get a white horizontal line.
10     Now open the raster by selecting cursor left/right key
11     Select cross b/w to 3 to get a white raster.
12     Again through programme keys on the remote do the drive adjustments
13     Use programme keys [1] & [4], [2] &[5], [3] &[6],  to adjust r/g/b drives.
14     Press mute to come out of the adjustments.
Similarly enter service mode for adjustments of vertical parameters and rf agc parametes  on page 2 and 5 respectievely.
Other parameters i.e sub brightness.colour/tint/sharpness/contrast are adjustable according to customer needs.
Speaker

For T-255 mono kit- 8ohms 3W
For T-255 stereo kit- 8ohms 6W
Spekers should be of the same specifications, as stated above, for better audio output.

Service mode menu

                         ***********************************
                         page 0
                         osd cont             90                    a
                         sub bright          63                    a
                         sub cont             50                    a
                         sub colour          60                    a
                         sub tint              32                    a
                         sub sharp           35                    a
                         *************************************

                         -------------------------------------------------------
                         page 1
                         red bias              127                  a
                         green bias          127                  a
                         blue bias            127                  a
                         red drive             63                    a
                         green drive         8                      a
                         blue drive           63                    a
                         C-TEMP  R         0                      A
                         C-TEMP  G         0                      A
                         C-TEMP  B         0                      A
                         -------------------------------------------------------
                         ==============================
                         PAGE 2
                         V POS 50HZ      40                    A
                         Vpos 60hz         40                    a
                         V size 50hz        90                    a
                         V size 60hz        82                    a
                         V sc                   12                    a
                         V lenearity         17                    a
                         V size cmp         7                     
                         ==============================

                         >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
                         page 3
                         h freq                 30
                         h phase 50hz     9                      a
                         h phase 60hz     7                      a
                         hblk-l                  4                      a
                         h blk r                 4                      a
                         blank def            0
                         coring enabl       1                      a
                         >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

                         <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
                         page 4
                         colour system    2
                         sif sys sw           5.5
                         c ext                   0
                         c by pass           0
                         c kill on              0
                         c kill off              0
                         <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

                         *************************************
                         page 5
                         sync kill              0
                         rf agc delay        32
                         v-kill                   0
                         cross b/w           0
                         fm level              16
                         video level          5
                         *************************************

                         ==============================
                         page 6
                         digital osd          0
                         audio switch       0
                         akb def              1
                         auto flesh          0
                         count down mode 0
                         grey mode          0
                         v sync set up      0
                         ==============================
                        
                         >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
                         page 7
                         filter sys             2
                         vol filter              0
                         vif sys sw           38.9
                         brt abl def          0
                         brt abl threshold                        4
                         brt mid stop def 0
                         emg abl def        0
                         opt filt sys          1
                         >>>>>>>>>>>>>>>>>>>>>>>>>>>>>

                         ------------------------------------------------------
                         page 8
                         afc gain and gate                      0
                         secam b-y dc     13
                         secam r-y dc      13
                         r-y/b-y gain bal   12
                         r-y/b-y angle       12
                         b gama select    0
                         rg gama select   0
                         -----------------------------------------------------

                         =============================
                         page 9
                         audio mute         0
                         fm mute             0
                         video mute         0
                         sound trap         4
                         fm gain               0
                         de-emp tc          1
                         fbp-blk sw          0
                         ============================

                         **********************************
                         page 10
                         t disable             1
                         vertical test        0
                         tint test              0
                         colour test         0
                         drive test            0
                         contrast test      0
                         osd contrast test                       0
                         akb test             0
                         **********************************

                         ______________________________
                         page 11
                         osd h pos           36
                         opt col sys         2
                         opt av sys          0
                         tune lock            clr
                         select tuner (wittis) (TCL) 5v/9v
                         lna                      no
                         aqudio menu      no
                         for stereo kit      yes
                         logo naming       set
                         semi trans b/g    1

                         _______________________________