XOCECO PH-50T18 Service Manual page 12

and the related sync signal are outputted to N602 PW118 to make the processing. PW2300
complete mainly the functions of 3D comb filter, the channel switch, 5-line Y/C separation, the color
decoding and so on. It connect external SDRAM chip N703 HY57V161610E treated as the internal
memory to assist the operation of PW2300.
PW2300 internal block diagram:
PW2300 the arrangement diagram of the pins:
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