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DCP-L5500D
Service manual
Brother DCP-L5500D Service Manual page 379
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Also See for DCP-L5500D
:
User manual
(705 pages)
,
Quick setup manual
(2 pages)
1
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Advertisement
TT
T2TT relay PCB
2
KS_CLU
T2TT pickup clutch
1 24V
2
SD_CLU
1 24V
T2 jam sensor
24V
SEN_JAM
3
3
SEN_JAM
KS_CLU
S0V
2
2
S0V
SD_CLU
VCC_LED
1
1
VCC_LED
SEN_JAM
T2 paper empty sensor
SEN_PE
SEN_PE
3
3
SEN_PE
SEN_EDGE
S0V
2
2
S0V
S0V
VCC_LED
1
1
VCC_LED
VCC_LED
T2 paper feed sensor
SEN_EDGE
3
3
SEN_EDGE
S0V
2
2
S0V
VCC_LED
1
1
VCC_LED
T3TT relay PCB
T3TT pickup clutch
2
KS_CLU
1 24V
2
SD_CLU
T3TT release clutch
1 24V
T3 jam sensor
24V
SEN_JAM
3
3
SEN_JAM
KS_CLU
S0V
2
2
S0V
SD_CLU
VCC_LED
1
1
VCC_LED
T3 paper empty sensor
SEN_PE
SEN_PE
3
3
SEN_PE
SEN_EDGE
S0V
2
2
S0V
S0V
VCC_LED
1
1
VCC_LED
VCC_LED
T3T2 paper empty sensor
SEN_EDGE
3
3
SEN_EDGE
S0V
2
2
S0V
VCC_LED
1
1
VCC_LED
T4TT relay PCB
2
KS_CLU
T4TT pickup clutch
1 24V
2
SD_CLU
T4TT release clutch
1 24V
T4 jam sensor
24V
SEN_JAM
3
3
SEN_JAM
KS_CLU
S0V
2
2
S0V
SD_CLU
VCC_LED
1
1
VCC_LED
SEN_JAM
T4 paper empty sensor
SEN_PE
SEN_PE
3
3
SEN_PE
SEN_EDGE
S0V
2
2
S0V
S0V
VCC_LED
1
1
VCC_LED
VCC_LED
T4 paper feed sensor
SEN_EDGE
3
3
SEN_EDGE
S0V
2
2
S0V
VCC_LED
1
1
VCC_LED
T5TT relay PCB
2
KS_CLU
T5TT pickup clutch
1 24V
2
SD_CLU
T5TT release clutch
1 24V
24V
T5 jam sensor
SEN_JAM
3
3
SEN_JAM
KS_CLU
S0V
2
2
S0V
SD_CLU
VCC_LED
1
1
VCC_LED
SEN_JAM
T5 paper empty sensor
SEN_PE
SEN_PE
3
3
SEN_PE
SEN_EDGE
S0V
2
2
S0V
S0V
VCC_LED
1
1
VCC_LED
VCC_LED
T5 paper feed sensor
SEN_EDGE
3
3
SEN_EDGE
S0V
2
2
S0V
VCC_LED
1
1
VCC_LED
200V model
24V
P0V
24V
P0V
DSLEEP
AC/DC
Power IC
HEAT_ON
RL_DRIVE
INLET_OUTLET
OFF_MODE
L1
AC_DIRECT_VDD
AC direct
FG
inpit circuit
100V model
N
24V
L1
L1
P0V
FG
24V
N
N
P0V
HEAT_ON
Low-voltage
RL_DRIVE
Power supply PCB
OFF_MODE
AC_DIRECT_VDD
T2_KS_CLU
8
7
24V
V DD24
7
6
KS_CLU
6
5
SEN_JAM
5
4
SEN_PE
T2_SEN_JAM
4
3
SEN_EDGE
T2_SEN_PE
3
2
S0V
T2_SEN_EDGE
VDD3_LED1
2
1
VCC_LED
1
T3_KS_CLU
VDD3
T3_SD_CLU
VDD24
9
24V
8
8
KS_CLU
7
7
SD_CLU
6
6 NC
5
5
SEN_JAM
T3_SEN_JAM
4
4
SEN_PE
T3_SEN_PE
3
3
SEN_EDGE
T3_SEN_EDGE
2
2
S0V
VDD3_LED1
1
1
VCC_LED
T4_KS_CLU
VDD3
T4_SD_CLU
VDD24
8
8
24V
7
7
KS_CLU
6
6
SD_CLU
5
5
SEN_JAM
T4_SEN_JAM
4
4
SEN_PE
T4_SEN_PE
3
3
SEN_EDGE
T4_SEN_EDGE
2
2
S0V
1
1
VCC_LED
VDD3_LED2
T5_KS_CLU
VDD3
T5_SD_CLU
VDD24
8
8
24V
7
7
KS_CLU
6
6
SD_CLU
5
5
SEN_JAM
T5_SEN_JAM
4
4
SEN_PE
T5_SEN_PE
3
3
SEN_EDGE
T5_SEN_EDGE
2
2
S0V
VDD3_LED2
1
1
VCC_LED
VDD24_M
9
24V
9
8
8
P0V
VDD24
7
7
24V
P0V
6
6
5
5
DSLEEP
DSLEEPN
4
HEAT_ON
4
RL_DRIVE
3
3
2
OFF_MODE
LVPS_OFF_PLS
2
AC_DIRECT
1
1
8
VDD3
7
6
5
4
VDD24_DETN
VDD24
3
2
1
Motor driver
VDD24_
VM7
VM8
HU+
HU+
16
MTRDRV_RSTN
RESETn
HU-
HU-
15
MTR_SLEEP
SLEEPn
HV+
HV+
14
HV-
HV-
13
MTR_SCS
SCS
HW+
HW+
12
MTR_SCLK
SCLK
HW-
HW-
11
MTR_SDATAI
SDATAI
SGND
10
VDD5
SDATAO
+5.0V
9
U
U
8
MTR_ENB
ENBL
U
7
V
V
6
MTR_CLK
CLKIN/PWNIN
V
5
MCU
W
W
4
MTR_FGS
FGOUT/LOCKn
W
3
MTR_FGHALL
FGHALL
FG+
FG+
2
MTR_FAULTN
FAULTN
FG-
FG-
1
FGFB
VDD5
VDD3
DCDC_ENABLE
DCDC
VDD2
VCC_FAN
3
GND
2
FAN_LOCK
1
FAN_FULL
VDD2
FAN_LOW
FAN_LOCK
VDD3
LED_VCC_CTL
VDD3_LED1
VDD3
VDD3_LED2
S0V
1
TT_Timing
TT_Timing
2
TT_RxD
TT_RxD
3
RST
TT_RST
4
TT_TxD
TT_TxD
5
TXD Buffer
TT_TxEN
VDD3
6
EEPROM
SCL
SCL
SDA
SDA
S0V
2
KT_SW1
KT_SW1
1
S0V
2
KT_SW0
KT_SW0
1
MT/TT
TT:PullDow
6-3
+5.0V
16
HU+
Hall IC
HU-
15
M
14
HV+
+5.0V
13
HV-
Hall IC
12
HW+
11
HW-
SGND
10
9
+5.0V
8
U
7
U
6
V
5
V
4
W
+5.0V
3
W
Hall IC
2
FG+
1
FG-
Paper feed motor
MAIN fan
Main body
Main body
NC
1
12
NC
NC
2
11
NC
3
10
7
VDD3
4
8
6
LT_Timing
5
LT_RxD
5
7
6
5
4
LT_RST
7
6
3
LT_TxD
8
5
2
S0V
NC
9
4
1 VDD24
NC
NC
10-12
1-3
MAIN PCB
TT Connector
TT Balance sensor L
TT Balance sensor R
Confidential
Table of
Contents
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381
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Table of Contents
Troubleshooting
CHAPTER 2 ERROR INDICATIONS & TROUBLESHOOTING
36
Checks before Commencing Troubleshooting
37
TROUBLESHOOTING
73
Troubleshooting for Paper Feeding Problems
117
Troubleshooting for Image Defects
130
Troubleshooting according to image defect
131
Troubleshooting for Software Problems
143
Troubleshooting for Network Problems
144
Troubleshooting for Toner and Drum Problems
146
Troubleshooting for Fuser Unit Problems
148
Troubleshooting for PCB Problems
149
Troubleshooting for Document Feeding Problems
150
Troubleshooting for Image Defects
153
Troubleshooting for Fax Problems
157
Troubleshooting for Other Problems
159
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