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Model
LC-46DH66 (serv.man4)
Pages
16
Size
644.2 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Adjustment Procedure
File
lc-46dh66-sm4.pdf
Date

Sharp LC-46DH66 (serv.man4) Service Manual ▷ View online

LC-46DH65E/S, LC-46DH66E
3 – 13
5. ADC adjustment (Component 15K)
6. ADC adjustment (Component 33K)
7. PC signal adjustment (ANALOG D-sub15PIN)
8. RGB signal adjustment (SCART)
Adjustment point
Adjustment Conditions
Adjustment procedure
1
Setting
[Signal]
COMP15K, 50Hz
100% Full Field Colour Bar sig-
nal
[Terminal]
EXT3 COMPONENT IN
•  Feed the COMPONENT 15K 100% full field colour bar signal (100% colour
    saturation) to EXT3 COMPONENT IN.
2
Auto adjustment 
performance
Page 6/16
Bring the cursor on [COMP15k ALL ADJ] and press [OK] [COMP15k ALL ADJ 
OK] appears when finished.
Adjustment point
Adjustment Conditions
Adjustment procedure
1
Setting
[Signal]
COMP33K, 50Hz
100% Full Field Colour Bar sig-
nal
[Terminal]
EXT3 COMPONENT IN
Feed the COMPONENT 33K 100% full field colour bar signal (100% colour sat-
uration) to EXT3 COMPONENT IN.
2
Auto adjustment 
performance
Page 7/16
Bring the cursor on [HDTV ADJ] and press [OK]
[HDTV ADJ OK] appears when finished.
Adjustment point
Adjustment Conditions
Adjustment procedure
1
Setting
[Signal]
XGA 60Hz
100% Full Field Colour Bar sig-
nal
[Terminal]
EXT4 PC IN
• Feed the XGA 60Hz 100% full field colour bar signal (100% colour saturation)
   to EXT4 PC IN.
2
Auto adjustment 
performance
Page 8/16
Bring the cursor on [ANALOG PC ADJ] and press [OK]
[ANALOG PC ADJ OK] appears when finished.
Adjustment point
Adjustment Conditions
Adjustment procedure
1
Setting
[Signal]
RGB15K, 50Hz
100% Full Field Colour Bar sig-
nal
[Terminal]
EXT1 SCART IN
• Feed the RGB 15k 50Hz 100% full field colour bar signal (100% colour 
   saturation) to EXT1 SCART IN.
2
Auto adjustment 
performance
Page 9/16
Bring the cursor on [SCART RGB ADJ] and press [OK]
[SCART RGB ADJ OK] appears when finished.
100% white
100% white
100% white
100% white
LC-46DH65E/S, LC-46DH66E
3 – 14
10. White Balance Adjustment
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 
± 0.002      Inspection spec ± 0.004 (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.
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
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.
[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.
Adjustment item
Adjustment conditions
Adjustment procedure
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.
LC-46DH65E/S, LC-46DH66E
3 – 15
5. If any of the procedures fails, the following upgrade failure screen shows up. For the failing procedure, the “NG” marking turns red.
NOTE: In such case, try to upgrade the software again. If it still fails, the hardware may be in trouble.
6. When all the procedures are complete, the following upgrade success screen shows up. The new software version can be confirmed on screen.
The version number appears when each item has been successfully upgraded. Finally the main version number appears on screen.
7. Turn off the AC power (Unplug the AC power cord). Take out the upgrading USB flash memory.
It waits for about 20 seconds until the AC power supply is turned off.
8. Now the software has been upgraded.
<S Y S T EM U P G R A D E>
S ystem V ersion: E0708021
B A N K 1
B A N K 2
B A N K 3
S T A T U S
U P D A T IN G . . .
30%
0%
0%
<S Y S T EM U P G R A D E>
S ystem V ersion: E0708021
B A N K 1
O K
B A N K 2
O K
B A N K 3
S T A T U S
U P D A T IN G . . .
100%
100%
44%
<S Y S T EM U P G R A D E>
S ystem V ersion: E0708021
B A N K 1
O K
B A N K 2
O K
B A N K 3
S T A T U S
O K
U P G R A D E C O M P LET E
100%
100%
100%
LC-46DH65E/S, LC-46DH66E
3 – 16
NOTE: Then get the set started and call the process adjustment screen 1/16 to check the main software version.
CAUTION: 1) Do not take out and put in the USB flash memory during formatting.
2) It takes about one minute to the rewriting completion.
Please confirm the upgrade status on the screen becomes 100%.
3) The AC power supply of the set is waited for about 20 seconds until off (The AC outlet is pulled out) after the upgrade is completed.
Page of 16
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Sharp LC-46DH66 (serv.man4) Service Manual ▷ Download