Sharp LC-42D43U Service Manual page 19

Adjustment item Adjustment conditions
MG3B****
MG3R****
Point 2
LEV20088
(WBI20352)
MG2G****
MG2B****
MG2R****
Point 1
LEV10044
(WBI10176)
MG1G****
MG1B****
MG1R****
Writing
MSET0003
2.2. Key writing
1. EDID writing (Main PWB: QPWBXD862WJN2, analog RGB input terminal / HDMI input terminal)
Adjustment item
1 Analog RGB File version checking
EDID writing
2 HDMI EDID writ- Inspection mode
ing File version checking
Point 1 176
Note
Adjustment conditions
3 – 2
Adjustment procedure
±0.0110
X=0.272
y=0.277
Set conditions for inspection
AV MODE: [DYNAMIC] (Reset)
Monochrome: ON
Black: OFF
Color Temp: High
Back Light: +16
Aging Time: Min. 60 minutes
Adjustment procedure
1) Using the checker, write the EDID data for HDMI to
IC1505 that is mounted on the main PWB.
TL1514: I2C clock, TL1515: I2C data
TL1516: 5V, TL1517: GND
TL1502: VCLK (Write: H, Read: V pulse)
2) In the analog RGB inspection, use a DDC-compatible
device. If the EDID has not been written, the analog
RGB input does not function normally.
1) Using the checker, write the analog HDMI EDID data to
IC1501 and IC1502 that are mounted on the main PWB.
TL1508/1510: I2C clock, TL1509/1511: I2C data
TL1512/1513: 5V, TL1519/1518: GND
TL1534/1535: Write protection (H: Write, L: Write
enable)
2) Write the data before the HDMI inspection with the
checker.
In the HDMI inspection, use a DDC-compatible device. If
the EDID has not been written, the HDMI does not func-
tion normally.
LC-42D43U
±0.0200