Sharp IM-MT899H Service Manual page 47

IC401 RH-iX2992AFZZ : System Microcomputer (IX2992AF) (3/3)
Pin No. Port Name Terminal Name Input/Output
108 P14 DFCKC
109 TCLKB SPIN
110 TCLKA CIN
111 P11 LDON
112 P10 PCNT2
113 MD0 MD0
114 MD1 MD1
115 MD2 MD2
116 PG0 EMPH1
117 PG1 EMPH0
118 PG2 XRST
119* PG3 CKSTP
120 PG4 HDON
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.
Output Security IC clock input ON/OFF
Input Input for spindle motor FG pulse detection
Input Track cross signal/focus drive detection
Output P.U. laser ON/OFF control output
Output Power ON Tr ON/OFF
Input Operation mode selection input 0
Input Operation mode selection input 1
Input Operation mode selection input 2
Output Audio emphasis control output 1
Output Audio output emphasis control 0
Output System LSI hard reset output
Output Microcomputer operation monitor output
Output Output for recording head electrical current control
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IM-MT899H/IM-MT899W
Function