M 3-6 Replacements & Calibration - Samsung HLRS078WX/XAA Service Manual

Alignment & Adjustment
3-6 Replacements & Calibration
3-6-1 Tilt the Screen
1. Removethe 12 pointscrews.Removethe Bottomcover.
Fix thesafety switchon the rightwith tape so that the set
can be turnedon after removingthe bottomcover.
: TH,B,M4.L15,BLK, SWRCH18A
2. Removethe 3 pointsscrews.
* Left 2 pointsscrews
: PWH,S,M3,L8,ZPC(YEL),SWRCH18A
* Right 1 pointsscrew
: PWH,S,M3,L7,ZPC(YEL),SWROH18A
3. Turnoff the powerto put the unit intothe STAND-BYmode.
Inorder to enter the ServiceMode, Press"Mute"_ "1" _ "8" _ "2" _ "POWER"buttonson the RemoteControl.
Select "DDP1011(L8)" on thefirst displayof the ServiceModemenu.Pressthe A 'v (Upor Down)buttons,then press
ENTERto select.Pressthe !_ (Right)buttonuntil yousee the CROSSHATCH PATTERN.
Then,adjust the screenposition,by holdingbothof the uppercornersof the DMD board.
CROSSHATCHPATTERN
l
....... # ==
Fix the safetyswitchon the rightwith tape so that the ]
set can be turnedon after removingthe bottomcover.
J
-_ Evenwhen thosescrewsare removed,the boarddoesnot separateit can be movedwithin the adjustablerange becausethere
are springscrewsat the centerholdingit.
-_ Whenadjustingthe screen,it is betterfor two peopleto work together.
One personshouldadjust the picturepositionwhile the otherpersonlooksat the screen.
-_ The movementdirectionof the boardand the pictureare opposite.
- Whenthe board is lifted upward,the screendescendsdown.
- Whenit is tilted to the left,the screentilts to the right.
-_ Whenthe pictureadjustment i s completed:
First,tightenthe two screwson the left of the DMDboardand then slowlytightenthe one screwon the bottomright.
Be carefulnot to touch the boardwhiletighteningthe screws.
(Whenusingan electric-powered screwdriver,be carefulthat the torqueis not too high.)
SamsungElectronics 3-19