Sharp DV-L88S/S Service Manual page 11

ADJUSTMENT PROCEDURE AND METHOD OF LCD PWB SIDE
Connect the LCD PWB to the jig for shipping adjustment.
Adjustment Item Adjustment Menu
1Free run
R1933
adjustment
2Screen center
R1914(VR)
adjustment
[Caution] Do the image plane center adjustment of 2 after you surely do free run adjustment of 1.
Image plane center deviates when adjustment is done in the reverse order.
CHECK ITEMS OF LCD PWB SIDE
Adjustment Item
1Free run check
Check the panel visually by connecting
to the checker.
POWER PWB SIDE ADJUSTING PROCEDURE AND METHOD.
Connect the POWER PWB to the jig for shipping adjustment.
Supply the power in the condition that the "ENTER" and "STILL" keys are pressed at the same time and move to the special
mode (SP MODE).
After that, get the initialize set by pressing the "PLAY" key. After setting, turn off the power once.
Supply the power again in the condition that the "ENTER" and "STILL" keys are pressed at the same time and after moving
to the special mode (SP MODE), get the adjustment mode by pressing "INPUT/DVD" key.
Each operation in the adjustment mode changes as follows:
(1) Switch the adjustment block with the "VOLUME+" key input.
TV1
(2) Perform paging of each adjustment block with the "RETURN" key.
TV1
(3) Switch each adjustment item with the "VOLUME–" key input.
TV1 adjustment
GAM0
TV2 adjustment
WB-R
TV3 adjustment
COM
(4) Change each adjustment value with the left or right cursor key.
Adjustment Point
Observe the 5PIN of
(VR) TP1900 (HSY) with a
frequency counter.
Visual observation of
the panel.
Adjustment Point
OPT
TV2
SBRIGHT
WB-B
OSDH
Signal/Setting
No input
Monoscope full screen. Adjust the screen so that it is located in the
(625/25 or 525/30)
Input Signal/Setting
External input
(625/25)
BAT
TV3
GPOS
SCOLOR
BBRIGHT
11
Adjustment Contents
Adjust so that the frequency becomes
15.63±0.1kHz (64.0µS).
HSY
15.63kHz
(64.0µS)
center.
Adjustment Contents
Check that the horizontal movement of OSD
is 2 mm or less when inputting a signal in
the external input mode with no signal input.
INPUT
CONT
STINT
GAIN
DV-L88S/S(H)
DV-L88W/W(A)