Sharp 34N-WF5H, Service Manual

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23
34N-WF5H
25 White balance adjust-
ment
(1) Receive the monoscope pattern signal. Set the AV mode to "STD-1" and the
quality-picture mode to "480P".
(2) Using the R/C unit keys, enter the JWS address170. Set the data "1" (Y-
Mute & V-Stop).
(3) Now turn the screen control until one color (reference color) in the raster
becomes dim.
(4) For the other two non-luminous colors, enter their JWS address numbers
with the R/C unit keys, referring to the table below. Adjust the cut-off data so
that the horizontal raster lines become whitish.
(5) Turn down the screen control to cut off the raster.
(6) Using the power switch on the set or the R/C unit, turn the power off and on
again to release the horizontal status.
(7) Using the R/C unit keys, enter the JWS address numbers listed below. Adjust
the drive so that the raster becomes whitish.
(8) Lower the brightness and the picture level. Check the white balance on the
dark screen. If out of spec, readjust the cut-off directly.
(9) Repeat the above steps (7) and (8) to have the white balance good on the
bright screen.
(10) Now adjust the brightness as well.
(11) Set the quality-picture mode to "1080I", and take the above steps (7) thru
(10) again.
26 OSD (On-screen-display)
position adjustment
(480P, 1080I)
(R/C, JWS address 020) (1) Set the AV mode to "STD-1".
(2) Set the screen size to STRETCH.
(3) Receive the monoscope pattern signal.
(4) Enter the JWS address 020.
(5) Using the VOLUME UP/DOWN keys, adjust the right- and left-side pictures
equally spaced.
(6) Get MENU OSD on the screen and check to see if the right- and left-side
areas are equally speced. If not, take the above steps (4) and (5) again.
(7) Switch to the 1080I mode and make similar adjustment.
ADDRESS ADJUSTMENT ITEM INITIAL VALUE
150 Red cut-off 64
152 Green cut-off 64
154 Blue cut-off 64
Variable range 64~255
ADDRESS ADJUSTMENT ITEM INITIAL VALUE
156 Green drive 64
158 Blue drive 64
Variable range 10~64~117
Table-3.
No. AdjustingPoint Adjusting Procedure
–––
V I D E O
AU D I O
S C R E E N
C C
C H S E T U P
S E T U P
PA R E N T C T R L
SELECT
ENTER
EXIT
S L E E P T I M E R E M A I N