Asus M930 Service Manual download pdf (Page 13)

GTC Service Manual

ASUS Proprietary 13

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3. MMI Test item

4.1

.1 .1

.1 Micro

MicroMicro

Micro

SD Test

SD Test SD Test

SD Test

The MMI test tool will be auto-executed by itself after we insert the

MMI Micro SD card. If the phone can’t get the data on the storage

device, we should check the pathway on below process.

A. V_MMC 3.0V, CON27 Pin4

B. SD_DET# 0V, R54 Pin1.

If item A fail, try to check open or short issue on the PMU.

If item B fail, try to check the CON27 Pin13 & Pin14.In the general; it

will short when we put in the card. Please change the CON27 if the

Pin13 and Pin 14 not short.

Figure 6. MicroSD + SIM Circuit

4.2

.2 .2

.2 SIM Test

SIM TestSIM Test

SIM Test

If SIM test fail, please check below items.

A. SIM_VCC 2.85V

If not please check the open or short on U39.

B. Please check the connector 27 on touch issue.

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Asus M930 Service Manual Page 13