3
1.1 System Block Diagram
Note:
Dotted line is applied to M770EL/M770E
Membrane Overlay Key
Contact HR/
Wireless HR
PCB
MPU PCB
(Main
Processing
Unit)
Operation PCB
(Intensity Up/
Intensity Down/
Start/Enter)
Contact HR
PCB
A/D
PCB
LCD Screen
LCD Lamp Inverter PCB
OSD Button PCB for Channel/Volume/Power-on
Video & Audio Input
(Coaxial, RCA)
Back-Light
Audio Interface
Headphone Jack
SMPS-5V
LCD Power
Adapter
AC
100V/220V
Power ON/OFF
Switch
Switching Mode
Power Supply &
Brake Control
3-Phase
Rectifier with
DC Filter
Gener-
ator
Battery
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 ...