LG MW-60SZ12 Service Manual page 15

3. Working Method and Improvement for Correction Mechanism of Tilt and Keystone
3.1 Working Method
(1) Put the 3t spacer on back of down parts of Mirror to correcting the Mirror angle of down parts
- To correct difference between Mirror angle of C/A and JIG angle of lighting parts.
(2) Looking at the screen, push the engine base for left/right direction in front of engine. At this time,
check the screen Keystone condition.
(3) Adjust engine angle by turning the adjustment Knob on the down part.
(4) If Tilt and Keystone is [MAX-MIN] # 4mm, lock the locking Knob of left/right in front part and then fix
the fixing boss with screw.
3.2 Improvement
When turning left and right rotation, because an engine construction structure is tuched a construction
structure of cabinet, shield case will be correction. When turning adjustment Knob, operation is bad
because you cann't input a hand to turning or adjustment Knob is tight.
Continously consult with the production department for improving adjustment operation. (A special
Driber for adjustment and so on)
3t spacer
engine base
Adjustment Knob
Fixing Boss
Adjustment Knob
engine
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