Sharp LC-37D44U Service Manual page 33

9.2. Key writing
EDID writing (Main PWB: QPWBXE450WJZZ, 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
Adjustment conditions
5 – 16
Adjustment procedure
1) Using the checker, write the EDID data for Analog RGB
to IC2202 that is mounted on the main PWB.
TL2293: I2C clock, TL2295: I2C data
TL2296: 5V, TL2294: GND
TL2297: 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 HDMI EDID data to IC1601
and IC1603 that are mounted on the main PWB.
TL1606/1613: I2C clock, TL1604/1614: I2C data
TL1611/1615: 5V, TL1604/1607: GND
TL1616/1618: 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-37D44U