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4.2 Electronic PCB, Connector and Pin Description
1) MPU PCB, M770EL
1-1) MPU_BACK (or MPU_Main)
Connector
Location
Pin
Pin Name
Functional Description
1 NC
No
Connection
2 GND
Ground
3 NC
No
Connection
4 NC
No
Connection
5 PWM
PWM
Output
6
E/P
Encoder Pulse Input
7 GND
Ground
CN 1 :
Main Cable
8 NC
No
Connection
1 VCC
Not
used
2 TXD_PC
Not
used
3 RXD_PC
Not
used
CN 2 :
Reserved Port
(RS-232)
4 GND
Not
used
1 VCC
+5V
2
TXD_PC
Transmit data ( M770E
Æ
PC)
3
RXD_PC
Receive data( PC
Æ
M770E )
CN 3 :
Serial Port (RS-232)
4 GND
Ground
Summary of Contents for M770E
Page 24: ...23 3 1 How to Replace the LCD Screen in Model M770EL Fig 3a CONSOLE POST ...
Page 25: ...24 Fig 3b CONSOLE ...
Page 33: ...32 7 Install new AUDIO INTERFACE DOWNLOAD Board 24 in reverse order ...
Page 40: ...39 4 1 Cable Connection Block Diagram 1 MPU PCB on M770EL MPU_FRONT Display MPU_BACK MAIN ...
Page 41: ...40 2 MPU PCB on M770E ...
Page 42: ...41 3 A D BOARD on M770EL ...
Page 43: ...42 4 POWER BOARD 4 1 M770EL DRIVE Board SMPS 5V LCD POWER ADAPTER 4 2 M770E DRIVE Board ...
Page 60: ...59 RCA 6A YELLOW Video Input ...
Page 69: ...68 ...