1Inimum Configuration - HP 340 Series Service Manual

Minimum Configuration
For the SPU to pass the minimuDl configuration functions correctly, the LED's should end up
as
0000 0000.
Once the minimum configuration self-test passes, you're ready to start testing a functional unit
with the self-tests.
1. Plug the SPU in, turn it on and watch the LED's go through self-test.
2. If a failure is indicated, refer to the LED, refer to the tables at the end of this chapter to
determine the failed assernbly.
Table 5-3. Minimum Functional System
Assembly Minimum Functions Performed
Power Supply All voltages normal and within specifications.
Processor Board CPU executes self-test, cycles memory, most instructions executed OK.
Keyboard
Disc Drive
Monitor
Memory addresses, read/writes, and refreshes.
Inputs/Outputs data between CPU and peripherals via HP-IB, HP-HIL, RS-232
or video/graphics interfaces. Note: If an SCSI interface option is installed, the
SCSI terminator must be installed to allow complete SCSI self-tests.
Processes and outputs video.
Inputs information.
Stores, reads, writes data.
Displays information.
Once these functions work, a similar process can be used to install and check other system
functions. This also may be a good point to load and run one of the tests in the Series 200/300
Test Tools Package. Refer to the Test Tools Manual for tests information such as:
• Minimum Hardware Configuration Required.
• Test Loading and Running.
• Interpreting Test Results.
Series 300 Test Tools are explained in a later section.
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Trou bleshooting