Video Controller Mode - Brother HL-2400C Service Manual

4.1

Video Controller Mode

Service Call Message
61 PROG ERROR
62 FONT ERROR
63 D-RAM ERROR
66 NV-W ERROR
67 NR-R ERROR
68 NV-B ERROR
60 SYSTEM ERROR
99 SERVICE 2
99 SERVICE 3
99 SERVICE 4
99 SERVICE 5
99 SERVICE 6
99 SERVICE 8
99 SERVICE 9
Service Call Message
99 SERVICE C3
99 SERVICE C4
99 SERVICE C7
99 SERVICE D1
99 SERVICE D2
99 SERVICE D3
99 SERVICE D4
99 SERVICE D5
Table 8-4-1
Meaning
Program ROM checksum
error
Font ROM checksum error
D-RAM error
NVRAM write error
NVRAM read error
NVRAM write/read error
System error
Instruction access error
error
Instruction bus error
Data bus error
Privileged instruction
Illegal instruction
No fpu
Table 8-4-2
NVRAM Error (MCTL PCB)
Engine Controller MCTL PCB Hardware Error
Process Timing Clock Error (Main Motor Clock Error)
Clutch Error of the Yellow Developing Unit
Clutch Error of the Magenta Developing Unit
Clutch Error of the Cyan Developing Unit
Clutch Error of the Black Developing Unit
HPSI Signal Error (Retract Error of Black and Yellow Toner
Cartridge)
VIII-11
Countermeasure
Replace with a new ROM.
Replace with a new ROM.
Replace with a new SIMM.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Replace with a new main
(video controller) PCB.
Description