Sanyo LCD-42XR7H Service Manual page 31

2) pins instructions:
ZR3915X is PQFP packing, 256 pins. Including: power, clock, Guest Bus, SDRAM interface, two
TS stream inputs, 32 GPIO, two SmartCard, Modem V9.0, UART serial interface, controllable
ADC and PWN interface, digital AUDIO interface, analog video output.
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