Toshiba 40WH08B, Service Manual

Page: 19 / 98

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GENERAL ADJUSTMENTS
Item Name Setting Input signal Measuring point Adjusting method Adjustment standard
Screen
position
adjustment
HIT
VLIN
HIT
HIT
Vertical ampli-
tude adjustment
(PAL WIDE)
Vertical ampli-
tude adjustment
(PAL Super-live)
Vertical ampli-
tude adjustment
(PAL cinema)
Picture mode 1
Picture mode 1
WIDE mode
Picture mode 1
Super-live mode
Picture mode 1
CINEMA mode
Phillips pattern
(PAL-I)
Phillips pattern
(PAL-I)
Phillips pattern
(PAL-I)
Phillips pattern
(PAL-I)
Screen adjustment
Screen adjustment
Screen adjustment
Screen adjustment
(1)Adjust the vertical and horizontal
screen positions and centering magnet
so that the c mark of the dummy
screen and the + mark of the Phillips
pattern can overlap in conformity.
Carry this out individually on 3 tubes of
R, G, and B
(Note) Do not move HPOS, VPOS data
(1)Turn the screen size to WIDE.
(2)In the first place, shorten the vertical
amplitude using HIT data until the upper
and low flags emerge on the screen.
(3)Then, extend the vertical amplitude with
the HIT data until either upper or lower
flag end conforms to the screen end
(Adjust the vertical center of the pattern
to the central mark of the screen.)
(1)Turn the screen size to Super-live.
(2)Adjust with the HIT so that the top and
bottom of the inner circle of Phillips
pattern will contact the screen edge.
(Note) VLIN adjustment is not performed.
(1)Turn the screen size to CINEMA.
(2)Adjust the registers on the top and
bottom of the Phillips pattern
(Note) Do not touch the centering magnet
Less than ø7mm
Upper and lower
flags are to be in
contact
The inner circle is
to contact the
screen edge
Completion of adjustment