5-39
CHAPTER 5 TROUBLESHOOTING
Address
P020
(input)
P021
(output)
P022
(input)
P031
(analog port)
P032
(analog port)
P033
(analog port)
P034
(analog port)
P035
(analog port)
P036
(analog port)
P037
(analog port)
P038
(analog port)
bit
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
—
—
—
—
—
—
—
—
Indication
—
—
Registration interrupt (hori-
zontal registration)
REQ
HFS communication RXD
HFS communication TXD (output)
—
ACK (output)
Horizontal registration motor
current setting
Horizontal registration motor
current setting
Horizontal registration motor
phase B output
Horizontal registration motor
phase A output
Punch motor REV
Punch motor FWD
Punch motor PWM
Punch motor encoder (input)
—
—
DUST sensor
Registering sensor 5 (horizon-
tal registration)
Registration sensor 4 (B5R)
Registration sensor 3 (A4R)
Registration sensor 2 (B4)
Registration sensor 1 (A4)
DUST sensor
Registration sensor 5 (horizon-
tal registration)
Registration sensor 4 (B5R)
Registration sensor 3 (A4R)
Registration sensor 2 (B4)
Registration sensor 1 (A4)
Horizontal registration sensor
light intensity adjustment
Registration sensor light inten-
sity adjustment
Signal
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
CLOCK
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Connector
—
—
—
—
—
—
—
—
—
—
J1001-2
J1001-1
—
—
—
J1006-9
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Remarks
H: light
blocked
L: light
blocked
H: full
H: full
level up:
intensity up
level up:
intensity
u p
T05-504-06
Summary of Contents for DF-75
Page 1: ...SERVICE MANUAL Published in Aug 01 5FG70760 DF 75...
Page 12: ...CHAPTER 1 GENERAL DESCRIPTION...
Page 24: ...CHAPTER 2 OUTLINE OF OPERATION...
Page 89: ...CHAPTER 3 MECHANICAL SYSTEMS...
Page 132: ...CHAPTER 4 MAINTENANCE AND INSPECTION...
Page 135: ...CHAPTER 5 TROUBLESHOOTING...
Page 142: ...5 7 CHAPTER 5 TROUBLESHOOTING...
Page 145: ...5 10 CHAPTER 5 TROUBLESHOOTING 2 1 2 Motor PCBs M7 M8 M5 M4 M3 M6 M1 M2 1 F05 201 02...
Page 175: ...5 40 CHAPTER 5 TROUBLESHOOTING...
Page 176: ...APPENDIX...
Page 180: ...A 4...
Page 184: ...A 8 APPENDIX...
Page 198: ...A 22...