Dell 5110cn Color Laser Printer Service Manual - Page 185
The Kind of Diag. and Contents of a Test
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4. The Kind of Diag. and Contents of a Test Chapter 2 Operation of Diag. The diagnosis/setting items which can be performed in the Customer mode are as follows. menu ESS Diag Function ALL Test CodeROM Test FontROM Test EEPROM Test DRAM Test MAC+PHY Test MAC: Media Access Control PHY: Physical Layer ASIC Test PANEL Test IOT Test HD Test Description Executes the ESS Diag except the following. MAC+PHY/Panel 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.) 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.) 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.) 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.) 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.) Register check Executes this test when the 016-313 error occurred. Test result: NG (Go to FIP.) OK (Turn off/on the main power.) Tests the LED, LCD, and buttons of the control panel. 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.) 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.) 2 - 7