White Balance Adjustment; Initialization To Factory Settings; Upgrading The Software - Sharp LC-46DH65E Service Manual

LC-46DH65E/S, LC-46DH66E

10. White Balance Adjustment

For white balance adjustment, adjust the offset values on pages 12/16.
[Condition of the unit for inspection]
[Input signal condition]
[Adjustment reference device]
[Adjustment procedure]
1) Display the current adjustment status at R/G/B_GAIN(HI). (Page 12/16 of process adjustment)
The signal of 78IRE is input.
2) Read the value of the luminance meter. x=0.272, y =0.277
3) Change R_GAIN(HI)/ B_GAIN(HI) (Adjustment offset value) on page 12/16 of process adjustment so that the values of the luminance meter
approach x=0.272 and y =0.277.
(Basically, G is not changed. If adjustment fails with R and B, change G. When G is lowered, the weaker of R or B must be fixed.)
4) Display the adjustment status of the current R/G/B_GAIN(LO).
The signal of 15IRE is input.
Change R_GAIN(LO)/ B_GAIN(LO) (adjustment offset value) on page 12/16 of process adjustment so that the values of the luminance meter
approach x =0.272 and y = 0.277.
5) Both HI and LO are repeating the step from 1 to 4 until becoming an aim value.
[Adjustment reference standard value]
Adjustment spec ± 0.002
Adjustment spec ± 0.001
6) After completing adjustments, set EEP SAVE (16/16) to ON in the process menu to save the white balance adjustment value.
11. Confirmation item
1. After repairing the H.264 peripheral circuits, check that the DTV signal is received in the UK setting. (DH65 and DH66 series models only)
2. HDMI-CEC Inspection
The thing that the HDMI-CEC circuit operates is confirmed.

12. Initialization to factory settings

CAUTION: When the factory settings have been made, all user setting data, including the channel settings, are initialized.
(The adjustments done in the adjustment process mode are not initialized.) Keep this in mind when initializing these settings.
Adjustment item Adjustment conditions
1 Factory settings ends by turning off the
MAIN POWER key.
(See to below caution)
After adjustments, exit the adjustment process mode.
To exit the adjustment process mode, unplug the AC power cord from the outlet to forcibly turn off the power.
When the power is turned off with the remote control, unplug the AC power cord and plug it back in (wait approximately 10 seconds before plugging
in the AC power cord)
Please execute the initialized in the factory setting again when you turn on the power supply after the initialized in the factory setting is set.

13. Upgrading the software

1. Turn off the AC power (Unplug the AC power cord).
2. Insert the upgrading USB flash memory for upgrade into the service slot.
3. While holding down the power button, plug in the AC power cord of the main unit to turn on the power.
4. Upgrade begins automatically.
After the set starts, the upgrade screen like the figure below is displayed.
: PC mode, Modulated light (+16), Color temperature (High)
: HDMI 1080i 15IRE(LO), 78IRE(HI)
: Minolta CA-210
Inspection spec ± 0.004 (point LO)
Inspection spec ± 0.002 (point HI)
• Enter the adjustment process mode.
• Move the cursor to [INDUSTRY INIT] on page 2/16.
• Use the R/C key to select a region from [EUROPE/ RUSSIA/ SWEDEN] and press the
[OK] key.
• "EXECUTING" display appears.
• After a while, "INDUSTRY INIT SUCCESS" display appears, the setting is completed.
When succeeding: Background color (green)
When failing: Background color (red)
The following items are initialized in the factory setting.
1) User settings
2) Channel data (e.g. broadcast frequencies)
3) Maker option setting
4) Password data
Adjustment procedure
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