Service Tests; 18 Troubleshooting - HP 200 Service Manual

Service Tests

Test Description
Bail Cycle Test This tests the following:
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D
D
D
Bail-Sensor Test This tests the following:
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D
D
Electrical Test The electrical test performs all of the following:
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D
D
D
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D
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D
Input/Output Test The input/output test performs the following:
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D

8 18 Troubleshooting

Bail
Bail sensor switch
Drive Mechanics
Main PCA
Bail sensor switch
Main PCA
Mechanical interference
Carriage communications test
Carriage ASIC test: Values stored in the carriage ASIC registers are
temporarily stored. All registers are tested by writing, then reading, the
numbers AA(hex) and 55(hex). When the test is complete, previously
stored values are restored.
Cartridge interface ASIC test: Verifies the functionality of the cartridge
interface ASIC.
Cartridge ASIC / carriage ASIC link test
EEROM checksum
On-board SIMM RAM test
ROM CRC test: Performs a ROM checksum and compares it to a
checksum value previously stored.
Swath RAM test: Tests the RAM used by the cartridge interface ASIC to
store the swath.
Parallel input/output test: Reads the data and status registers of the
Bi-Tronics PAL. (Tests only a small portion of the Bi-Tronics input/output
functionality.)
Serial input/output test: Verifies the ability of the RS-232 interface to send
and receive data. This test uses a special loopback connector (part number
07440-60302) to connect the output to the input.
C3187 90000