Xerox Phaser 6000 Service Manual page 282

Troubleshooting
4-34
Control Panel
Test (WorkCentre 6015 MFP)
ESS Diag
FlashROM Test CHECK OK
CodeROM ERROR
DRAM Test CHECK OK
DRAM ERROR
Addr:0xCCCCCCCC
0xAA -> OxBB
MAC+PHY Test Start
Processing
Check OK or NG
IOT Test CHECK OK
IOT ERROR
Xerox Internal Use Only
Test Description
The checksum of the code area of
ROM is calculated, and compared to
the valid checksum value stored in the
corresponding chip beforehand.
This test performs read/write/verify of
the DRAM.
PHY internal loopback test.
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:
A 6-inch long CAT5 cable
An RJ-45 connector
A crimping tool
Pin 1 TX+ to 3 Rx+
Pin 2 TX- to 6 Rx-
This test checks communication with
the printer.
Phaser 6000/6010 and WC 6015 MFP
s6015-087