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DV-L70U
Adjustment VR
Adjustment Point
Input Signal/Setting 100% color bar
Adjustment Method
(3) TV3 adjustment
Adjustment VR
Adjustment Point
Input Signal/Setting No input state
Adjustment Method
Adjustment VR
Adjustment Point
Adjustment method
Adjustment VR
Adjustment method
2. OPT adjustment
Adjustment VR
Initialization
3. BAR adjustment
Adjustment VR
Initialization
Adjustment Method
STIN
Connect the oscilloscope to 5PIN (VB) and GND of TP1901.
Blue of the color bar and the crest value of magenta are made to become equal.
COM
Specified adjustment jig (illuminometer) or visual observation
Brightness: Center
Perform it in a combination of PWB and the liquid crystal panel which will be supplied as
products finally.
• When using the specified adjustment jig
Connect the output of jig to the oscilloscope and
adjust the waveform to the minimum point.
At this time, perform the adjustment several times
to fix the optimal point because the measuring value
hardly changes around the optimal point.
• In case of visual adjustment
Stand or tilt the panel as shown in the figure and check
by shaking your head and seeing whether stripes appear.
If the adjustment is improper, you will see stripes in the
longitudinal direction. Perform the adjustment so that they
do not appear.
OSDH
Visual observation
Adjust the OSDH of TV3 to 27 mm from the right of screen.
B BRI
Set the B brightness to "76".
OPT adjustment
It is set respectively in WIDE "03", OSDV"00", BL"01".
BAT adjustment
Stabilized power supply, in the body, connection.
It is made DVD start rise state, and a BACKLIGHT(HI/LOW/OFF) key is pushed and made "HI".
The voltage of the stabilized power supply is adjusted to become 6.4±0.05V in the stabilized
power supply connection part.
It is set so that the numerical value of the BAT display may become "00"
(Type drawing)
6-4
Optimal point
Adjust within the above
range to fix the optimal point
Direction of stripe
27mm
B brightness
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