Marantz CM6200/F1N, Руководство по обслуживанию

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IC1401 RH-iX0410AWZZ: MD System Microcomputer (IX0410AW) (1/2)
Pin No.
Function
Terminal Name
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
1 4M/16M Output 4 M/16 M DRAM selection input.
2 64M Output 64 M DRAM selection input.
3 LDVAR Output LDVAR (laser power adjustment output)
4* ADJS Output ADJS (for automatic adjustment step check)
5 CIN Input CIN (track count signal input)
6* N.C. - Not used.
7 UNLOCK Input ERR input. (UNLOCK of MD LSI monitor PLL)
8 BYTE Input GND
9 CNVSS Input GND
10* STID OUT Output ST-ID output.
11* SEACH OUT Output MD search output.
12 RESET Input RESET input.
13* N.C. Output Clock output.
14 VSS - GND
15 MCCK Input EXTAL (8.4672 MHz)
16 VCC Input +3.15 V
17 P85 Input Input output port P85.
18 DINT Input DINT (Interrupt input from MD-LSI)
19 SFSY Input Subcode communication frame synchro Interrupt input.
20 ST-ID Input ST-ID input. (MD-ON)
21 SERCH Input CD search input. (Synchronous REC interrupt input)
22 MDRSW Output MD RSW output.
23* CDB SEL Output CD BLK SEL output.
24 DSENSE Input DSENSE (servo sense input from MD-LSI)
25 P-DOWN Input P-DOWN (blackout detection)
26 HDON Output HDON (magnetic head power ON/OFF output)
27 EEPRO Output EEPROM protect release output.
28 HFON Output HFON
29 EEPK Output EEPROM serial clock output.
30 EEPD Input/Output EEPROM data input output.
31 MD DATA Output MD computer data input output.
32 K DATA Input System computer data input.
33 DSCK Input System computer clock input.
34 DSTB Output DSTB (system computer communication possible and during communication)
35* N.C. Output Not used.
36 SBO Input Subcode serial data input.
37 SBCK Output Subcode communication serial clock output.
38 DISC Output DISC
39 R/P Output R/P output. (REC/PLAY selection)
40 FOK Input FOK (focus servo condition monitor input)
41 FLASH L Input Flash write selection.
42 SGAIN Output SGAIN
43 SYRS Output MD LSI resister select signal output.
44 SYRD Output SYRD (MD-LSI read signal output)
45 SYWR Output SYWR (MD-LSI write signal output)
46 FLASH H Input Flash write selection.
47 SYS D7 Input/Output SYS D7 (data bus 7)
48 SYS D6 Input/Output SYS D6 (data bus 6)
49 SYS D5 Input/Output SYS D5 (data bus 5)
50 SYS D4 Input/Output SYS D4 (data bus 4)
51 SYS D3 Input/Output SYS D3 (data bus 3)