T&D04 - Nvm Check Test; T&D05 - Operator Panel Led & Key Test; T&D06 - Parallel Interface Test; T&D07 - Serial Interface Test - InfoPrint 4247 Z03 Maintenance Information

If the test result is positive, the DEFAULT parameters are loaded.
This test must be run when a "neutral" Engine board is installed as a spare part.
It correctly initialized the NVM for the specific Device ID.
T&D04 - NVM CHECK TEST
This test checks for correct read access and the checksum, and adjustment data CRC.
Note: See "Engine board" on page 207 for T&D requirements when installing a new Engine board.
T&D05 - OPERATOR PANEL LED & KEY TEST
This test checks the integrity of the 14 keys and the 3 LEDs on the Operator Panel.
If one key is damaged (short circuit), an error message is displayed and the T&D is halted.
All of the LEDs are lit and then go off. Then the LEDs are lit sequentially from right to left for approximately .5
second with an associated buzzer sound.
The test requests you to sequentially push the 14 keys from right to left.
At each step the display shows the message "PUSH KEY (n)".
A buzzer sounds twice if the wrong key is pressed.
An error message is displayed if the requested key is not activated within a few seconds.
T&D06 - PARALLEL INTERFACE TEST
This test checks (by means of a loopback connector) for the correct operation of control, status, and data signals
of the bidirectional interface. You must have the parallel interface connector installed onto the Controller Board to
run this test.
T&D07 - SERIAL INTERFACE TEST
This test checks (by means of a loopback connector) for the correct operation of control, status, and data signals
of the serial RS232 interface. You must have the serial interface connector installed onto the Controller Board to
run this test.
T&D08 - LAN INTERFACE TEST
If this interface is present, this test verifies the MAC address on the LAN.
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Chapter 2. Diagnostics