Service manual

MD-MX30/MX30W
– 86 –
1 4M/16M Output 4M/16M DRAM select input
2 64M OUtput 64M DRAM select input
3 LDVAR Output LDVAR (Laser power output adjustment)
4* ADIS Output ADJS (For automatic adjustment step check)
5 CIN Input CIN(track count signal input)
6* NC -
7 UNLOCK Input ERR input (The monitor PLL won't lock.)
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* NC - Clock output
14 Vss - GND
15 MCCK Input EXTAL(8.4672MHz)
16 Vcc - +3.15V
17 P85 Input Input/output port P85
18 DINT Input DINT (Interrupt input from the MD-LSI)
19 SFSY Input Interruption input
20 ST-ID Input ST-ID Input(MD-ON)
21 SERCH Input CD search input (Synchronized 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 the MD-LSI)
25 P-DOWN Input P-DOWN (power failure detection)
26 HD ON Output HDON (Magnetic head current ON/OFF output)
27 EEPRO Output EEPROM protect release
28* 4.23 Output 4.23 MHz output
29 EEPK Output EEPROM serial clock output
30 EEPD In/Output EEPROM data input/output
31 MD DATA Output MD data output
32 K DATA Input K DATA (System computer data input)
33 DSCK Input DSCK (System computer communication clock input)
34 DSTB Output DSTB (System computer communication enable and during communication)
35 DATA Output R-DATA
36 SBO Input Sub-code serial data input
37 SBCK Output Sub-code communication serial clock output
38 LATCH Output R-LATCH
39 R/P OUtput R/P output (REC/PLAY switching)
40 FOK Input FOK (Focus servo state monitor input)
41 FLASH L Input FLASH write selection
42 CLOCK Output R-CLK
43 SYRS Output SYRS (MD-LSI register 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 In/Output SYS D7 (Data bus 7)
48 SYS D6 In/Output SYS D6 (Data bus 6)
49 SYS D5 In/Output SYS D5 (Data bus 5)
50 SYS D4 In/Output SYS D4 (Data bus 4)
51 SYS D3 In/Output SYS D3 (Data bus 3)
IC1401 RH-iX0326AWZZ:MD System Microcomputer (iX0326AW) (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.