Xerox WorkCentre Pro 423 Service Manual page 177

Chain Function
153 105 MODEM Register,RAM Check
153 106 MODEM Loop Back Test
153 107 EEPROM
153 110 G3M0/ICM Loop Back Test
153 111 G3M0/ICM Loop Back Test
153 150 ROM
153 151 SRAM
153 152 DPRAM
153 153 CODEC,RCNV,Image RAM
153 154 Iernal Loop Back
153 155 DPRAM
153 161 G4 Loop Back
253 100 DRAM
253 101 DPRAM
253 102 ROM
253 103 DPMC
253 104 CODEC,RCNV,Image RAM
253 105 MODEM Register,RAM Check
253 106 MODEM Loop Back Test
253 107 EEPROM
253 110 G3M0/ICM Loop Back Test
253 111 G3M0/ICM Loop Back Test
WorkCentre Pro 423/428
Item Content
G3M1
G3M1
G3M1
G3M1/ICM
G3M1/ICM
G4M1
G4M1
G4M1
G4M1
G4M1
G4M1
G4M1
G3M2
G3M2
G3M2
G3M2
G3M2
G3M2
G3M2
G3M2
G3M2/ICM
G3M2/ICM
03/02
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How to use the Diagnostic C/E Mode
CHAPTER 2 TROUBLESHOOTING