Dell 5110cn - Color Laser Printer, Service Manual

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Chapter 2 Operation of Diag.
4. The Kind of Diag. and Contents of a Test
The diagnosis/setting items which can be performed in the Customer mode are as follows.
menu Function Description
ESS Diag
ALL Test
Executes the ESS Diag except the following.
MAC+PHY/Panel
CodeROM Test
Calculates the ROM checksum and compares it with the
value stored in the ROM.
Executes this test when the 016-317 error occurred.
Test result: NG (Go to FIP.) OK (Turn off/on the main
power.)
FontROM Test
Calculates the Font ROM checksum and compares it with
the value stored in the FontROM.
Executes this test when the 016-310 error occurred.
Test result: NG (Go to FIP.) OK (Turn off/on the main
power.)
EEPROM Test
Performs write/read/verify on the diag. area of the
EEPROM.
Executes this test when the 016-327 and 016-323 errors
occurred.
Test result: NG (Go to each FIP.) OK (Turn off/on the
main power.)
DRAM Test
Tests OPEN/SHORT with the address line of the DRAM.
Performs write/read/verify on the entire DRAM.
Executes this test when the 016-315, 016-316, 016-318
and 016-332 errors occurred.
Test result: NG (Go to each FIP.) OK (Turn off/on the
main power.)
MAC+PHY Test
MAC: Media Access
Control
PHY: Physical Layer
PHY Internal loopback test
Executes this test when the 016-334, 016-340, 016-344,
016-345 and 016-346 errors occurred.
Test result: NG (Go to each FIP.) OK (Turn off/on the
main power.)
ASIC Test
Register check
Executes this test when the 016-313 error occurred.
Test result: NG (Go to FIP.) OK (Turn off/on the main
power.)
PANEL Test Tests the LED, LCD, and buttons of the control panel.
IOT Test
Communication test with the IOT
Executes this test when the 016-370 error occurred.
Test result: NG (Go to FIP.) OK (Turn off/on the main
power.)
HD Test
Test the optional hard disk.
Executes this test when the 016-312 error occurred.
Test result: NG (Go to FIP.) OK (Turn off/on the main
power.)