Toshiba P503DL - Manual (Page 23)

23
6. LIGHT ENGINE BLOCK
CAUTION
Be careful to prevent the ESD (Electro Static Discharge) before touching the DLP Engine.
If ESD happened, important key components including DMD device may easily damaged.
This electro-static destruction will not be covered by Texas Instruments guarantee.
For ESD prevention, use conductive wrist strap and connect the wire to the metal frame of the
projection engi ne.
The light engine is
Placed on the mechanical
Adjustment platform.
When adjustments for
picture position or
distortion are necessary,
electronics adjustments will
not compensate the image.
To perform, mechanism adjustments
are necessary. The adjustment table
(platform) needs to be adjusted at the
right place but before doing this
adjustment, it is important to set
an electronic position adjustment
should be at the center.
ADJUSTMENT
. 1. DLP Engine adjustment
When DLP E ngine is replaced, most of occasion,
following adjustments are needed.
New DLP engine may have some position
displacement. The engine mount base
has limited adjustment range but enable
to cover most of position adjustment.
1) Loosen and release the screw tension
which are used to fasten engine mount
base (E) (I) (J) (K), to avoid any
displacement during transportation.
2) Lens Focus Adjustment
Before doing mechanical position adjustment,
Check if optical focus is out or not.
If the displayed picture, possibly using internal
Test signal, cross -hatch, did not appear sharp,
Then lens focus needs to re-touched
at bottom
Lamp Ballast
connector
Light Engine
placement
guide pins
30-pin connector
50-pin connector Power connector
Lamp power
connector
(A) (B) (J) (C)
(H) (I)
(F)
(E) (D)
(K)
? ? ? ? ? ? ? ? ? 5 0 ? ? ? ? ? ?
? ? ? ? ? ?
3 0 ? ? ? ? ? ?
? ? ? ? ? ( ? ? ? ? ? ? )
? ? ? ? ? ? ? ?
focus adjustment knob
? ? ? ?
Lamp power
selection à
switch locates
here