LED1 3V3_CA Lit (Green) Off
LED2 5V_ALW Lit (Green) Off
LED3 3V3_SOM Lit (Green) Off
LED4 5V_CA Lit (Green) Off
LED5 3V3_ALW Lit (Green) Off
LED6 UART PWRGOOD Lit (Green) Off
LED7 MCU_PB2 Blinking 1Hz (Green) unknown
LED1 (SOM) unknown Lit (Green) Off
Touch only: Servicing the Display, LVDS Cable, or Touch Panel requires removing the UCB to access
connections. If directed to remove the UCB in another part of this guide, refer to these instructions,
skipping steps where noted.
Follow these steps to replace this part.
1. Remove the Console from the Frame.
2. Remove the Fan Bracket.
Remove the UCB
3. Touch only: Skip this step if only removing UCB to access Touch, LVDS, or Backlight
cables/connectors. Remove 2 #1 Phillips from fan vent shroud (top center); set aside.
4. Remove LVDS connector from UCB socket JP4 (LCD).
a. Pinch retaining clips on both sides of connector by reaching under top frame rail; pull
connector straight away from UCB.
5. Remove connector from UCB socket J6 (Backlight).
a. Thumbnails pushing connector ‘ears’ directly away from UCB is suggested.
6. Touch only: Skip this step if only removing UCB to access Touch, LVDS, or Backlight
cables/connectors. Remove 2 #2 Phillips from RFID/NFC board in UCB socket CN12 (RFID/NFC).
a. Gently lift board straight up from the UCB, lifting on either side of the connector along
the ‘upper’ edge – do not angle or bend; set aside to reuse.
7. Remove RFID antenna from UCB connector CN13.
8. Remove 1 #2 Phillips from Wi-Fi board in UCB socket CN5.
a. Board will tilt upwards, pull away in line with the Wi-Fi board.
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