Service manual

MD-MS701W/MS702
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1 P120 SWP UP Output Asterisk input Output for pull-up
2*~7* P121~P126 P121~P126 Output Not used
8 P127 OEM Input Product brand ID input
9 VDD VDD Input Positive power supply
10* X2 X2 Input Not used
11 X1 X1 Input Main system clock input
12 VSS VSS Input Ground potential
13* XT2 XT2 Input Not used
14 XT1 XT1 Input Subsystem clock input
15 RESET RESET Input Microcomputer hard reset input
16 INPUT0 DINT Input System LSI interruption request input
17 P01 SENSE Input System LSI servo sense input
18 P02 FOK Input Focus OK signal input
19 P03 XRST Outout System LSI hard reset output
20* P04 P04 Output Not used
21 P05 HDON Output Record head current control output
22 P06 VLIM Intput Volume limiting switch input
23 AVDD AVDD Input A/D converter analog positive power
24 AVREF0 AVREF0 Input A/D converter reference voltage input
25 ANI0 PLVINN Input Built-in battery voltage detection input
26 ANI1 PLVDCI Input DC jack voltage detection input
27 ANI2 PLVDRY Input Dry cell voltage detection input
28 ANI3 RKEY Input Remote controller key operation detection input
29 ANI4 HKEY1 Input Main unit key operation detection input 1
30 ANI5 HKEY2 Input Main unit key operation detection input 2
31 ANI6 TEMP Input Ambient temperature detection input
32 ANI7 CNTRY Intput Product destination ID input
33 AVSS AVSS Intput A/D converter ground potential
34 ANO0 LDVAR Output P.U. laser power set output
35* ANO1 MDOUT Output Internal motion mode output
36 AVREF1 AVREF1 Output D/A converter reference voltage input
37 P70 SYWR Output System LSI write enable output
38 P71 SYRD Output System LSI read enable output
39 P72 SYRS Output System LSI register selection output
40 P20 - Output Not used
41 SO1 RMDAT Output Remote controller display data output
42 P22 - Output
43 P23 HSTOP Input Main unit STOP key operation detection input
44 P24/BUZ BEEP Output Beep tone pulse output
45 P25 DSPSTB Output Main unit display control strobe output
46 SO0 DSPDAT Output Main unit display control serial data output
47 SCK0 DSPSCK Output Main unit display control serial clock output
48~55 P80~P87 SYD0~SYD7 In/Output System LSI parallel data bus
56 P40 EJECT Input Eject lever operation detection input *
57 P41 KHOLD Input Main unit key hold switch input
58 P42 RPLAY Input Remote controller PLAY key operation detection input
59* P43 HFON Output P.U. high frequency superposition control output
IC401 RH-iX2680AF03(IX2680AF):System Microcomputer (1/2)
FUNCTION TABLE OF IC
Pin No.
FunctionPort Name Terminal Name
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.