LG DU-52SZ51D, Service Manual

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ADJUSTMENT INSTRUCTIONS
13. Cable Operation Confirmation
(1) Confirm that the Cable Card is inserted in the slot.
(2) Enter the EZ adjust menu by pressing Adjust on the
Service Remote Control (S R/C).
(3) Go to number 2 Cable Check and press the Right key (
G
) .
(4) Confirm items below..
14. Tilt & Keystone Adjustment
14-1. Required Test Equipment
(1) Hardware: Six angle wrenches, Spanner, and Screwdriver
(2) PC to output XGA signal
(3) Service Remote Control
14-2. Preparation for Adjustment
(1) Engine Fix Knob will be able to adjust, Lower Back Cover
does not close.
(2) After Set turn on, select the adjustment pattern come out
from screen using EYE Key on the Service Remote Control .
14-3. Adjustment
(1) After Engine to be completely affixed in the adjustment
Knob pillar from TV front, sees camera sheds light TV
Screen and Keystone & Tilt confirm from back side.
(2) Keystone adjust moving to upper, lower with Top, Bottom
adjustment BOLT and Tilt adjust moving to left, right with
Engine Base.
(3) Both sides Adjustment Knob and Top Mirror adjust to be
Tilt and Keystone is Max and Min difference 4mm.
(4) After adjustment completed, Engine fixes with Top fixation
BOLT.
Name
Descrambler
Check
CableCARD
OOB Path
FDC_SNR
Video Signal
Normal
OK
CableCARD TM
is inserted.
OK(Lock)
OK(20dB above)
Normal Screen
Defective
Not OK
CableCARD TM
is removed.
Not OK(Unlock)
Not OK(20dB under)
Black Screen
(No Picture)
<Tilt & Keystone Adjustment Pattern>
<DLP Engine>
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