Samsung SCR-3232, Service Manual

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MICOM PIN DESCRIPTIONS
PIN NAME FUNCTION PIN NAME FUNCTION
1 A9 ADDRESS LINE 41 TEST_P1 PRODUCTION TEST PIN 0
2 A8 ADDRESS LINE 42 AVref CVCC
3 /XCE MICOM INTERFACE CHIP ENABLE 43 TEST_P2 PRODUCTION TEST PIN 1
4 /XCM MICOM INTERFACE FIRST WORD ENABLE 44 TEST_P3 PRODUCTION TEST PIN2
5 /XRD MICOM INTERFACE READ SIGNAL 45 Avss GROUND
6 /XWR MICOM INTERFACE WRITE SIGNAL 46 NC NO CONNECTION
7 BUS3 MICOM INTERFACE DATA INPUT/OUTPUT SIGNAL 47 FVO NOT USE
8 BUS2 MICOM INTERFACE DATA INPUT/OUTPUT SIGNAL 48 UBL UNBALLACE DISC CHECK
9 BUS1 MICOM INTERFACE DATA INPUT/OUTPUT SIGNAL 49 /EJECT EJECT KEY INPUT
10 BUS0 MICOM INTERFACE DATA INPUT/OUTPUT SIGNAL 50 /PLAY PLAY KEY INPUT
11 VDD2 VCC 51 NC NO CONNECTION
12 NC NO CONNECTION 52 NC NO CONNECTION
13 NC NO CONNECTION CVCC 53 NC NO CONNECTION
14 /CE FLASH CHIP ENABLE 54 NC NO CONNECTION
15 /URO TC 9466 IC READ 55 XRST DSP RESET
16 /UCS TC 9466 IC CHIP SELECT 56 LED_BUSY BUSY LED
17 /UWR TC 9466 IC WRITE 57 EMPHA EMPHASIS CONTROL
18 NC NO CONNECTION 58 NC NO CONNECTION
19 CLK TC 9466 IC INTERRUPT 59 XIN RESONATOR CLOCK IN
20 NC NO CONNECTION 60 XOUT RESONATOR CLOCK OUT
21 NC NO CONNECTION 61 Vss1 GROUND
22 NC NO CONNECTION 62 NC NO CONNECTION
23 NC NO CONNECTION 63 NC NO CONNECTION
24 FLAGA TRACK ZERO CROSS CHECK 64 RESET MICOM RESET
25 FLAGC FOCUS OK CHECK 65 VCC VCC
26 GFS NOT USE 66 A7 ADDRESS LINE AND DATA PORT
27 SPM_DIR SPINDLE KICK/BRAKE 67 A6 ADDRESS LINE AND DATA PORT
28 NC NO CONNECTION 68 A5 ADDRESS LINE AND DATA PORT
29 DRV_MUTE KA3012 MUTE 69 A4 ADDRESS LINE AND DATA PORT
30 FG SPINDLE FG INPUT 70 A3 ADDRESS LINE AND DATA PORT
31 SPM_DIR SPM-DIR 71 A2 ADDRESS LINE AND DATA PORT
32 VSS GROUND 72 A1 ADDRESS LINE AND DATA PORT
33 NC NO CONNECTION 73 A0 ADDRESS LINE AND DATA PORT
34 D_INT ROM DECODER INTERRUPT 74 VDD VCC
35 CLOSE TRAY CLOSE SIGNAL 75 A15 ADDRESS LINE
36 OPEN TRAY OPEN SIGNAL 76 A14 ADDRESS LINE
37 NC NO CONNECTION 77 A13 ADDRESS LINE
38 MON SPINDLE MOTOR ON/OFF 78 A12 ADDRESS LINE
39 NC NO CONNECTION 79 A11 ADDRESS LINE
40 SCOR SUB CODE SYNC INTERRUPT 80 A10 ADDRESS LINE