LC-46DH77E (serv.man4). Adjustment Procedure - Sharp TV Service Manual (repair manual). Page 14

LC-42DH77E/RU/S/V, LC-46DH77E/RU/S/V

3 – 14

For white balance adjustment, adjust the offset values on pages 12/16.

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 

± 0.003      Inspection spec ± 0.006 (point LO)

Adjustment spec 

± 0.001      Inspection spec ± 0.002 (point HI)

6) After completing adjustments, set EEP SAVE (16/16) to ON in the process menu to save the white balance adjustment value.

1. After repairing the H.264 peripheral circuits, check that the DTV signal is received in the UK setting.

2. HDMI-CEC Inspection

The thing that the HDMI-CEC circuit operates is confirmed.

[Condition of the unit for inspection]

: PC mode, Modulated light (+16), Color temperature (High)

[Input signal condition]

: HDMI 1080i 15IRE(LO), 78IRE(HI)

[Adjustment reference device]

: Minolta CA-210

[Adjustment procedure]

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.

1

Factory settings

ends by turning off the 
MAIN POWER key. 
(See to below caution)

• 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

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.