d15 Modem Integration and Application Developers Guide version draft 0.53 Page 81 of 181
6.3.2 OEM Service Depot Repair
When a unit comes in to the OEM for service, the first requirement is to determine whether the
modem must be sent on to Motorola for repair. A screening test must be performed, one that
mounts the modem on the Motorola evaluation board and sends a loopback message to qualify the
specific problem.
To set up for this test, you need to have an evaluation board, a known-good d15 modem (for
comparison), and a power supply. The end-to-end test can employ either a live network or an
over-the-air test involving a communications monitor that can transmit and receive at the
appropriate frequencies. The objective is to test the suspect modem in a known-good environment,
in which all other components are known to be operational.
6.3.3 Diagnostic Utility
This appendix describes how to develop a script to perform a factory end-of-line test of a d15
modem integrated in an OEM platform. This test provides a high degree of confidence that the
modem is properly configured and integrated, and is ready for shipment.
CAUTION !
OEM service operations are encouraged to modify the following QA test
procedure to develop a test for the diagnostic screening of repair
products.
6.3.4 Quality Assurance Testing
Efficient, automated testing can ensure the product is functional when delivered to the end user,
especially when OEM product manufacturing occurs in a region or country distant from the
intended network. Use the following checklist to verify that a product is ready for shipment:
1. OEM host platform (without modem) is operational.
2. OEM host platform contains the correct software load.
3. OEM host platform provides sufficient power to operate the modem.
4. Modem is loaded with the correct software version.
5. Modem is loaded with correct frequencies.
6. Modem is configured for the correct ID and network registration information.
7. OEM host communicates with modem logic board.
8. OEM host is able to key up the radio with sufficient output at the antenna.
9. Modem can receive with sufficient signal strength from the antenna port.
NOTE:
Requirements for testing items 1 and 2 are specific to each OEM product. A
specific discussion of these items is beyond the scope of this document.
An automated test script provides more than diagnostic support. When you set up an automated
test process, you ensure that only those products that pass the test are labeled for release. For
example, since regulatory agencies require product labeling for certification and approval for us,
you can develop an automated script to read the modem ID and destination network from the
modem and generate a label with the proper inscription.
