
52
3) Operation Button Board
Connector
Location
Pin
Pin Name
Functional Description
1 GND
Ground
2 GND
Ground
3 START/STOP
Start/Stop
Key
4
UP
Level UP Key
5
DOWN
Level Down Key
6 ENTER
ENTER
Key
7 SCAN
Signal
Scan
CN 1 :
Operation Button
(Start/Stop, Intensity
Up, Intensity Down)
8 VCC
VCC
4) Program Button Board
Connector
Location
Pin
Pin Name
Functional Description
1
Q1
Data Output 1
2
Q2
Data Output 2
3
Q3
Data Output 3
4
Q4
Data Output 4
CN 1 :
Program Button
5
B4
Data In 4
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 ...