Service manual

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MD-SR50H/50W/60E/60W
1 P12/TCLKA CIN Input Track cross signal/focus drive detection
2 TCLKB SPIN Input Spindle motor FG pulse detection input
3 P14 INNSW Input Mechanism inner SW position detection input
4 P15 DISCPR Input Disc record inhibition switch input
5 TIOCA2 SPWDS Input Spindle motor FG pulse width detection
6 P17 PDCNT Output Inner detection PD current control output
7 Vss VSS — Ground potential
8* TxD0 RMDAT Output Remote control indication data output
9 TxD1 DSPDAT Output Unit indication data output
10 P32 PCRX Input Spare
11 P33 DSPSTB Output Main unit's display strobe output
12* SCK0 SCK0 Output Serial I/O clock output (not used)
13 SCK1 DSPSCK Output Unit indication data clock output
14 PE0 _EPCS Output EEPROM chip selection output
15 PE1 EEPD Input/Output EEPROM serial data input/output
16 PE2 EEPK Output EEPROM serial clock output
17 PE3 EPWP Output EEPROM write protection
18 Vss VSS — Ground potential
19 PE4 _EJSW Input Ejection lever opertion detection input
20 PE5 SYRS Output System LSI register selection output
21 PE6 _SYRD Output System LSI read enable output
22 PE7 _SYWR Output System LSI write enable output
23-30 PD0-PD7 SYD0-SYD7 Input/Output System LSI parallel data bus
31 Vss VSS — Ground potential
32* PC0 CKSTP Output Microcomputer stand by operation monitor
33 PC1 _XRST Output System LSI hand reset output
34 PC2 SENSE Input System LSI servo sense input
35 PC3 _FOK Input Focus OK signal input
36 PC4 RCLAT Output Record audio IC data latch output
37* PC5 TEST1 Input Test mode setting input 1
38* PC6 TEST0 Input Test mode setting input 0
39 PC7 EMPH0 Output Audio emphasis control output 0
40 Vcc VCC — Positive power supply
41 PB0 _MCPGI Intput Microphone plug insertion detection input
42 PB1 _INPGi Intput Line/digital plug insertion detection
43 PB2 INPGCK Intput Line/digital plug type detection
44 PB3 RADAT Output RF/Audio IC serial data output
45 PB4 RACLK Output RF/Audio IC data clock output
46 PB5 PBOPON Output Audio IC output stage control output
47 PB6 PBLAT Output Audio IC data lactch output
48 PB7 _LCDRST Intput LCD driver reset output
49 Vss VSS — Ground potential
50 PA0 _ELON Output EL light control output
51* PA1 PA1 Output Spare
52* PA2 PA2 Output Spare
53 PA3 RFLAT Output FL amplifier IC data latch output
54* P20 P20 Output Spare
55 P21 _REC Input Unit REC buttom operation detection input
56 TIOCC3 BUZOUT Output Beep sound pulse output
57 MD0 MD0 Input Operation mode selection input 0
IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (1/3)
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.