[balenofeng]

03-317 UI~IOT COMMUNICATION FAIL 触摸屏与IOT板通讯异常
BSD on:CH3.1A CH3.4A
Description
A communication failure between the UI PWB and the IOT PWB was detected.

Procedure
Remove the R/H Cover and the Rear Cover. Does CR10 on the IOT CPU PWB light up?
Yes No

Check the +5VDC circuit to the IOT CPU PWB J400-1 by referring to Chapter 7 Wiring Data. (7.3.8 +5VDC-2)

Shift the UI Panel Assembly. Is +5VDC measured between the UI PWB J490-2 (+) and GND (-)?
Yes No

Check the +5VDC circuit to the UI PWB J490-2 by referring to Chapter 7 Wiring Data. (7.3.7 +5VDC-1)

Turn OFF the power. Check conductivity of the following:

Between the IOT CPU PWB J404-B14 and the UI PWB J490-10

Between the IOT CPU PWB J404-B13 and the UI PWB J490-11

Between the IOT CPU PWB J404-B16 and the UI PWB J490-12

Between the IOT CPU PWB J404-B15 and the UI PWB J490-13

Is the resistance 1Ohm or less for all wires?
Yes No

Check wires with more than 1Ohm for an open circuit or poor contact.

Replace the UI PWB (PL 9.5) followed by the IOT CPU PWB (PL 9.2).

[balenofeng]

作者: xoyo888888

谢谢 ，请问论坛中多次提到的IOT板是哪块，前些天我还有一个别的问题贴子，也是不知道怎么弄，提示15-387，有朋友提示我断开扫描部分的电(硬件改)，也提到过IOT板，这个在哪块找？

见图所示，拆开机器后盖板，左下角有个网状的铁盒子装着的就是了，实物上也有写着“IOT PWBA"的