Sharp CD-MD3000H Service Manual

CD-MD3000H/CD-MD3000W
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1 4M/16M Input 4M/16M DRAM selection input
2 64M Input 64M 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* NC – (Output) 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* 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 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 MDRMUT Output MD RMUT output (MOTOR DRIVER MUTE)
23* NC Output Not used
24 DSENSE Input DSENSE (servo sense input from MD-LSI)
25 P-DOWN Input P-DOWN (blackout detection)
26 HD ON 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* NC 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)
IC1401 RH-iX0349AWZZ: MD System Microcomputer (IX0349AW) (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.

Sharp CD-MD3000H Specifications

General

Brand	Sharp
Model	CD-MD3000H
Category	Stereo System
Language	English