Hitachi 51SWX20B Training page 104

DP-2X CHASSIS PRE-FOCUS ADJUSTMENT
ADJUSTMENT
PREPARATION:
A) Pre Heat Run should be
finished.
FOCUS ADJUSTMENT:
1) Short the 2pin sub-
miniature connector on the
CRT PWB (PTS), to
remove any color not
being adjusted and adjust
one color at a time. (The
adjustment order of R, G
and B is just an example.)
2) Adjust the Focus VR for
Red until Focus is
achieved. (A Fine Adjust-
ment will be made later.)
3) Repeat for Blue and
Green.
Projection Front View
RED CRT
Screen VR
R G
Focus VR
R G
FOCUS PACK
GREEN CRT BLUE CRT
NOTE:
• PTSR connector on RED
CRT PWB.
• PTSG connector on GREEN
CRT PWB.
• PTSB connector on BLUE
CRT PWB.
B
B
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