Sharp LC-65D90U Service Manual page 55

∫ IC4503 (LP2951CM)
The IC generates reference power for the BD8133FV reference voltage and the VH255 signal.
∫ IC7003/IC7103 (IXB461WJ) IC7006/IC7106 (IXB462WJ)
The 12-layer CPLD ICs control the CS circuit. IC7003 and IC7006 control the CS circuit for the upper-half of
the screen, whereas IC7103 and IC7106 the CS circuit for the lower half.
∫ IC4808 (MD1422N)
Using the 13V output from IC4808, the DC/DC IC generates the 8V signal for panel power (15VÅA- 7VÅA32V).
∫ IC1701 (LM2642MT)
This DC/DC IC generates the 3.3V signal (for two lines) for the PWBs.
∫ IC2471 (TPS850)
On this photo IC, the backlight brightness is controlled according to the output voltage of this IC when the
brightness sensor input comes in.
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LC-65D90U