Sanyo NV-E7500 - Navigation System With DVD Player, Service Manual

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11
ADJUSTMENT PROCEDURES
Power supply voltage DC +9.0V.
Input the suitable signal for each adjustment at the time of the adjustment.
It shifts to TEST MODE by pressing in order of [OUT][OUT][IN][IN][VOLUME-][]
[VOLUME-][][RETURN][POSITION].
When in TEST MODE,the items can be changed by pressing [ ] or [ ] of joystick,
and the values can be changed by pressing [] or [VOLUME-].
Adjust each image adjustment value by the initial value at all the adjustment.
(COLOR/TINT/BLACK:CENTER,DIMMER:MAX,AUTO DIMMER:OFF)
<Adjustment conditions>
Insert the connector of the jig for the wave form observation into CN1007.
In VIDEO MODE,input monochrome 10 step signal from VIDEO IN.
Go to TEST MODE and adjust in order of the following.
Refer to a figure 1 for each measurement point.
COM Adjustment
Adjust "COM AMP" to 5.5V±0.1Vp-p.
V
B-B
Adjustment
Adjust "RGB AMP" to 4.5V±0.1Vp-p.
CONTRAST Adjustment
Adjust "CONTRAST" to 3.2V±0.1Vp-p.
GAMMA Adjustment
Adjust "GAMMA 0" to make the fifth from black 2.0V±0.1V(DC).
Adjust "GAMMA 2" to make the first from white 3.5V±0.1V(DC).
Be careful that the first from white and the second from white do not approach too much.
(Give the difference in more than 0.2V.)
R/B Adjustment
Respectively adjust "SUB R" "SUB B" to make the fifth from black 2.0V±0.1V(DC).
<Adjustment conditions>
Insert the connector of the jig for the wave form observation into CN1007.
IN NAVI MODE,display the present location.
Go to TEST MODE and adjust in order of the following
because NAVI screen become monochrome 10 step signal.
GAMMA Adjustment
Adjust "GAMMA 0" to make the fifth from black 2.0V±0.1V(DC).
Adjust "GAMMA 2" to make the first from white 3.5V±0.1V(DC).
The steps should be like figure 1 as the above - mentioned adjustment.