Chapter 3 Hardware Diagnoses; Items For Diagnosis - Mitsubishi Electric MELIPC MI5A1P User Manual

3
HARDWARE DIAGNOSES
Diagnose whether there is a hardware error with this product.
Perform hardware diagnoses at first operation, and during troubleshooting.
Precautions
During a hardware diagnosis, do not turn OFF the power, or reset or restart the product. Doing so may result in the product
not being able to start normally.
If this product is unable to start normally, initialize the product. ( Page 145 Product Initialization)
3.1

Items for Diagnosis

This section shows the items that can be diagnosed by hardware diagnoses.
Dot matrix LED
display
Mode00
Mode01
Mode02
Mode03
Mode04
Mode05
*1 Carries out hardware fault diagnoses for DisplayPort, USB, RS232C, and Ethernet circuits.
3 HARDWARE DIAGNOSES
34
3.1 Items for Diagnosis
Item
Mode0 Diagnoses from Mode1 to Mode4
Mode1 Memory diagnosis
Mode2 Product module diagnoses
Mode3 External interface diagnoses
Mode4 Power supply module diagnoses
Mode5 LED diagnoses
Description
Perform diagnoses for Mode1 to Mode4 in order.
Perform the following diagnoses for product memory.
• Memory error detection
• Memory write, read, and reference
Diagnose hardware problems of this product.
Diagnose hardware problems of the external interfaces of this product.
Diagnose hardware problems of the power supply module of this product.
Tests the display of product LEDs.
*1