4-40 Xerox Internal Use Only Phaser 6000/6010 and WC 6015 MFP
Troubleshooting
FlashROM Test
This test calculates the checksum of the code area of ROM, and compares it with
the valid checksum value stored in the corresponding chip beforehand.
DRAM Test
This test performs read/write/verify of the DRAM. Run this test when the 116-315
error occurs.
MAC+PHY Test
PHY internal loopback test. Run this test when 116-314, 116-350, 116-351, 116-
352, and 116-355 errors occur.
To create a loopback plug, cross pin 1 (TX+) and pin 3 (RX+) together, and cross pin
2 (TX-) and pin 6 (RX-) together. You need the following equipment to create the
loopback:
• 6 inch CAT5 cable
• RJ-45 connector
•Crimping tool
IOT Test
This test checks communication with the IOT. Then it reads the status register of
the IOT to check whether commands can be exchanged with the IOT.
Light Flash R/W Test
This test randomly checks the 8 MB of Flash Memory in 2 MB sections. The
memory to be tested is backed up before the test, and restored after the test is
over. 0x55 and 0xAA is the test data pattern.
USB Test 1
Tests communication between the USB Host port and the device to which it is
connected.
Pin 1 TX+ to 3 Rx+
Pin 2 TX- to 6 Rx-
s6015-099
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