Read Sharp DV-L80 (serv.man3) Service Manual online
DV-L80S/W
10
ADJUSTMENT PROCEDURE AND METHOD OF LCD PWB SIDE
Connect the LCD PWB to the jig for shipping adjustment.
Adjustment Item
Adjustment Menu
Adjustment Point
Signal/Setting
Adjustment Contents
1
Free run
FADJ
Observe the 7PIN of
No input
Adjust so that the frequency becomes
adjustment
TP1800 (HSY) with a
15.734
±
0.01kHz (63.556
µ
S).
frequency counter.
2
Screen center
R1914(VR)
Visual observation of
Monoscope full
Adjust the screen so that it is located in the
adjustment
the panel.
screen.
center.
HSY
15.734kHz
(63.556
µ
S)
CHECK ITEMS OF LCD PWB SIDE
Adjustment Item
Adjustment Point
Input Signal/Setting
Adjustment Contents
1
Free run check
Check the panel visually by connecting
External input
Check that the horizontal movement of ODS
to the checker.
is 1 mm or less when inputting a signal in
the external input mode with no signal input.
the external input mode with no signal input.
External
MAIN PWB SIDE ADJUSTING PROCEDURE AND METHOD.
Connect the MAIN PWB to the jig for shipping adjustment.
Supply the power in the condition that the “UP” and “DOWN” keys are pressed at the same time and move to the special
mode (SP MODE).
After that, get the default set by pressing the “PLAY” key. After setting, turn off the power once.
Supply the power again in the condition that the “UP” and “DOWN” keys are pressed at the same time and after moving
to the special mode (SP MODE), get the adjustment mode by pressing “DVD/TV/EXTERNAL” key.
Supply the power in the condition that the “UP” and “DOWN” keys are pressed at the same time and move to the special
mode (SP MODE).
After that, get the default set by pressing the “PLAY” key. After setting, turn off the power once.
Supply the power again in the condition that the “UP” and “DOWN” keys are pressed at the same time and after moving
to the special mode (SP MODE), get the adjustment mode by pressing “DVD/TV/EXTERNAL” key.
Each operation in the adjustment mode changes as follows:
(1) Switch the adjustment block with the "VOLUME DOWN" key input.
(2) Perform paging of each adjustment block with the "RETARN" key.
(3) Switch each adjustment item with the "VOLUME UP" key input.
(4) Change each adjustment value with the left or right cursor key.
DAC adjustment
OPT adjustment
TV1
TV2
TV3
FADJ
TV1 adjustment
TV2 adjustment
TV3 adjustment
SBRI
GPOS
CONT
WB-R
WB-B
SCOL
STIN
COM
OSDH
BBRI
GAIN
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