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The MMI board 5015 is mounted on the rear of a 6U face plate behind the front display.
The MMI has connection to the main board, LCD, loud speaker and Brooks serial interface
module. The PCB layout is shown in Figure 11 below.
1. J1, Connection to main board 5012
2. J9, Connection to LCD 5038
3. VR2, Potentiometer for LCD contrast
4. Hole for cable connection to LCD
5. J4, Connection to LCD (5038)
6. SW2, MMI board boot for firmware download
7. SW1, MMI board restart for firmware download
8. VR1, Potentiometer for loudspeaker
9. J7, Connection to loudspeaker (5036)
10. J6, Connection to serial interface
11. LED LD1,
Steady: Normal condition
Off: Watchdog fault or MMI board in "Boot" mode
12. J2 & J3, Connections to the front 5061 (LEDs and keyboard)
Figure 11 MMI Board 5015
32
Operation Manual
FT1020G3 Rev 2.10.4
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