Samsung CLX-8540ND - Engin Controller

System diagram
Service Manual
5-7
Samsung Electronics
CN15
ACR
(ROSE 䝬䞌㟝, ROSE_R 㜄㉔ ㇠㟝
㙼䚜)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
INNER_TEMP
GND
ACR_F_S
ACR_F_P
PWM_AC R_F_LED
GND
5V3_ACR
ACR_R_S
ACR_R_P
PWM_ACR_R _LED
GND
5V3_ACR
ADC_CTDS_OM
ADC_CTDP_OM
PWM_CTD _LED
GND
5V3_ACR
LSU
CN22
LSU 3&4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
LSU_LD_3_POWER
nLDON_LSU_3
GND
nHSYNC_3_P
nHSYNC_3_N
GND
5V_LSU
nSH_LSU_3_2B
GND
VDO_3_2B_N
VDO_3_2B_P
GND
VDO_3_1B_N
VDO_3_1B_P
GND
nSH_LSU_3_1B
(NC)
LSU_LD_4_POWER
nLDON_LSU_4
GND
nHSYNC_4_P
nHSYNC_4_N
GND
5V_LSU
nSH_LSU_4_1B
GND
VDO_4_1B_N
VDO_4_1B_P
GND
VDO_4_2B_N
VDO_4_2B_P
GND
nSH_LSU_4_2B
(NC)
CN34
LSU 1&2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
LSU_LD_1_POWER
nLDON_LSU_1
GND
nHSYNC_1_P
nHSYNC_1_N
GND
5V_LSU
nSH_LSU_1_2B
GND
VDO_1_2B_N
VDO_1_2B_P
GND
VDO_1_1B_N
VDO_1_1B_P
GND
nSH_LSU_1_1B
LSU_LD_2_POWER
nLDON_LSU_2
GND
nHSYNC_2_P
nHSYNC_2_N
GND
5V_LSU
nSH_LSU_2_1B
GND
VDO_2_1B_N
VDO_2_1B_P
GND
VDO_2_2B_N
VDO_2_2B_P
GND
nSH_LSU_2_2B
CN41
ACR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
INNER_TEMP
GND
ACR_F_S
ACR_F_P
PWM_AC R_F_LED
GND
5V3_ACR
ACR_R_S
ACR_R_P
PWM_ACR_R _LED
GND
5V3_ACR
5V3_CTD
GND
ADC_CTDP_SH
ADC_CTDS_SH
CTD_LED_CUR
SEL_CTD
GND
(NC)
CN21
LSU P-MOTOR
1
2
3
4
5
6
7
8
9
10
24V4
GND
nSTART_LSU_MO T_1
nREADY_LSU_1_2
CLK_LSU_MOT_1
24V4
GND
nSTART_LSU_MO T_4
nREADY_LSU_3_4
CLK_LSU_MOT_4
CN100
LSU TEMP
1
2
LSU_TEMP
GND
CN39
WAST E MOT & LSU CLN
1
2
3
4
5
6
7
8
9
10
DMOT_LSU_CLN_OUTA
DMOT_LSU_CLN_OUTB
3.3V
GND
nSENS_ LSU_CLEAN
24VS1
ON_DMOT_WASTE
3.3V
GND
nSENS_ WASTE_MOT
CN18
COVER OPEN LOWER
1
2
3
4
5
24V1
24V1
(NC)
24VS1
24VS1
CN7
COVER OPEN UPPER
1
2
3
5V3
(NC)
5VS3
CN23
SMPS1(24V)
1
2
3
4
5
6
7
8
24V1
GN D
24V2
GN D
24V3
GN D
24V4
GN D
CN20
SMPS2(5V)
1
2
3
4
5
6
5V1_SMPS
GN D
5V2_SMPS
GN D
5V3_SMPS
GN D
CN17
SMPS3(signal)
1
2
3
4
5
6
5V3_SMPS(feed back)
EN_24V
24V4(feedba ck)
(NC)
(NC)
(NC)
CN3
THERMISTOR
1
2
3
4
5
6
7
8
9
10
3.3V
GN D
nDETECT_COVER_EXIT
FUSER_THERM1
GN D
FUSER_THERM2
GN D
FUSER_FUSE1
FUSER_FUSE2
GN D
CN26
BLDC BK
1
2
3
4
5
6
7
8
9
10
11
12
13
3.3V
GND
nSENS_OPCHOME_4
BLDC_BK_DIR
CLK_BLDC_BK
nBLDC_BK_READY
nBLDC_BK_EN
5V3
BLDC_BK_BRAKE
GND
GND
24VS2
24VS2
CN16
T2 & BLDC ITB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
DMOT_T2_OUTB
DMOT_T2_OUTA
3.3V
GN D
nSENS_T2_ENGAGE
BLDC_ITB_DIR
CLK_BLDC_ITB
nBLDC_ITB_READY
nBLDC_ITB_EN
5V3
BLDC_ITB_BR AKE
GN D
GN D
24VS2
24VS2
CN28
BLDC DEVE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3.3V
GN D
nSENS_OPCHOME_123
BLDC_DEV_ DIR
CLK_BLDC_DEV
nBLDC_DEV_READY
nBLDC_DEV_EN
5V3
GN D
GN D
GN D
24VS1
24VS1
(NC)
CN8
BASE & DUPLEX
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
3.3V
GND
nSENS_ PAPER_UPLIMIT
3.3V
GND
nSENS_ P_EMPTY
ON_DMOT_ELEV
24V3
3.3V
GND
nDETEC T_CST
GND
nPAPER SIZE2
nPAPER SIZE1
nPAPER SIZE0
3.3V
GND
nSENS_PAPER_NEAREND
24VS1
DUPLEX_CLUTCH
PWM_DUPLEX1 _FAN
SENS_FAN _DUPLEX1
GND
PWM_DUPLEX1 _FAN
SENS_FAN _DUPLEX1
GND
3.3V
GND
nSENS_ DUPLEX
(NC)
CN102
TB CRUM IF
1
2
3
4
5
6
7
8
9
10
11
12
ON_DMOT_T NR_1
EN_DMOT_TN R_1
ON_DMOT_T NR_2
EN_DMOT_TN R_2
ON_DMOT_T NR_3
EN_DMOT_TN R_3
ON_DMOT_T NR_4
EN_DMOT_TN R_4
GND
SCL0_LPEC3
SDA0 _LPEC3
3.3V
CN101
ITB CRUM IF
1
2
3
4
GND
SCL2_LPEC3
SDA2_LPEC3
3.3V
CN29
CLUTCHS
1
2
3
4
5
6
24V4
PICKUP_CLUTCH
24V4
FEED_CLUT CH
24V4
REGI_CLUTCH
CN30
DUPLEX & TOP SENS
1
2
3
4
5
6
3.3V
GND
nSENS_ DUPLEX_READY
GND
nSENS_ TOP
5V3
CN77
DEVE CRUM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
24VS1
GND
TSEN_VCONT_1
TONER_CON_1
TSEN_VCONT_2
TONER_CON_2
TSEN_VCONT_3
TONER_CON_3
TSEN_VCONT_4
TONER_CON_4
5V3
EN_ERASER_123
EN_ERASE R_4
GND
3.3V
SCL2_LPEC3
SDA2 _LPEC3
GND
CN4
STEP MOTOR
1
2
3
4
5
6
7
8
B_STEP_EXIT
NB_STEP_EXIT
NA_STEP_EXIT
A_STEP_EXIT
B_S TEP_DUPLEX
NB_STEP_DUPLEX
NA_STEP_DUPLEX
A_S TEP_DUPLEX
CN38
MP
1
2
3
4
5
6
7
8
9
3.3V
GN D
SENS_MP_EM PTY
24V4
MP_CLUTC H
24V4
MP_FEED_CLUTCH
SPK_ P
SPK_ M
CN37
FINISHER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
nDETECT_FINISHER
FINISHER _TXD
FINISHER _RXD
nRST_FINISHER
IF_FINISHER
3.3V
5V3
24V3
24V3
24V3
GN D
GN D
GN D
GN D
GN D
CN32
SCF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
(NC)
(NC)
GND
GND
GND
nCMD_REQ_SCF
SCF_RXD
nRST_SCF
3.3V_SCF
24V3
24V3
(NC)
(NC)
GND
GND
(NC)
IF_SCF
nBUSY_SCF
SCF_TXD
3.3V_SCF
GND
24V3
CN24
BLDC OPC
1
2
3
4
5
6
7
8
9
10
11
12
BLDC_OPC_DIR
CLK_BLDC_OPC
nBLDC_OPC_READY
nBLDC_OPC_EN
5V3
BLDC_OPC_BRAKE
GND
GND
24VS1
24VS1
DMOT_T1_OUTA
DMOT_T1_OUTB
CN5
BLDC FUSE R
1
2
3
4
5
6
7
8
9
10
BLDC_FUSER _DIR
CLK_FUSER_ITB
nBLDC_FUSER_READY
nBLDC_FUSER_EN
5V3
BLDC_FUSER _BRAKE
GND
GND
24VS2
24VS2
CN33
HVPS2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GN D
WAST E_FULL
GN D
PWM_LSU_SIDE_FAN
READ_THV1_4(K)
READ_THV1_2(M)
GN D
PWM_FUSE R_BIAS
nEN_THV2
PWM_THV1 _4(K)
PWM_THV1_2(M)
GN D
24VS2
PWM_THV1 _1(Y)
PWM_THV1 _3(C)
PWM_THV2
PWM_SA WPLATE
5V_HVPS
READ_THV1_1(Y)
READ_THV1_3(C)
READ_THV2
SENS_FAN_LSU _SIDE
ON_WASTE_LED
5V3
CN25
HVPS1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
READ_MHV_4(K)
READ_MHV_2(M)
GND
PWM_DEV_DC_4(K)
PWM_DEV_DC_2(M)
PWM_MHV_ 4(K)
PWM_MHV_2(M)
GND
24VS2
PWM_AC _VPP_1(Y)
PWM_AC _VPP_2(M)
PWM_AC _VPP_3(C)
PWM_AC _VPP_4(K)
PWM_AC _1(Y)
PWM_AC _2(M)
PWM_AC _3(C)
PWM_AC _4(K)
nEN_AC_1(Y)
nEN_AC_2(M)
nEN_AC_3(C)
nEN_AC_4(K)
24VS2
GND
PWM_MHV_ 1(Y)
PWM_MHV_3(C)
PWM_DEV_DC_1(Y)
PWM_DEV_DC_3(C)
5V_HVPS
READ_MHV_1(Y)
READ_MHV_3(C)
CN27
FAN & FU SER & HUMI
1
2
3
4
5
6
7
8
9
10
11
12
13
24V3
SENS_FAN_SMPS
PWM_SM PS_FAN
GND
EN_REL AY_AC
ZERO_CROSS
HEAT_FUSER2
HEAT_FUSER1
24VS2
OUT_TEMP
GND
HUMIDITY
5V3
CN12
MAIN_IF
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
SPK_P SPK_M SOFT_BUTTON GND nVDI_1_1B GND nVDI_2_1B GND nVDI_3_1B GND nVDI_4_1B GND nVDI_1_2B GND nVDI_2_2B GND nVDI_3_2B GND nVDI_4_2B GND VCLK_1_1B GND VCLK_2_1B GND VCLK_3_1B GND VCLK_4_1B GND nLSYNC_1_1B
nLSYNC_2_1B
nLSYNC_3_1B
nLSYNC_4_1B
GND nPSYNC_1
nPSYNC_2
nPSYNC_3
nPSYNC_4
GND nPRINT nENDPAGE nRST_SYSTEM GND VBUS_ENG DN_ENG DP_ENG GND 5V1 5V1 5V1 5V1 GND 5V1 5V1 5V1 5V1 GND 5V2 5V2 5V2 5V2 GND 5V2 5V2 5V2 5V2 GND 5V3 5V3 nREADY_ENGINE
nACR_ENGINE
nERROR_ENGINE nINT_ENGINE nEXIT_ENGINE nPRINT_ACK
GND 24V4 24V4 GND 24V4 24V4
CN14
DOWNLOAD
1 2 3 4 5 6 7
TCLK TDI 1.8V 3.3V GND nTRST PROGRAM
CN10
USB
1 2 3 4
VBUS DN DP(DPULLUP)
GND
CN9
PANEL
1 2 3 4 5
GND 5V3 PANEL_TXD nRST_PANEL
PANEL_RXD
CN11
DEBUG
1 2 3 4
3.3V DEBUG_TXD DEBUG_RXD GND
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
-Reflective
CN6
EXIT SENS
1
2
3
3.3V
GND
nSENS_P_ EXIT
CN35
T1 ENGAGE SENS
1
2
3
3.3V
GND
nSENS_T1_ENGAGE
CN31
REGI SENS
1
2
3
GND
nSENS_ REGI
5V3
CN1
EXIT
1
2
3
4
5
3.3V
GND
nSENS_OUTBIN_FULL
24V3
GATE_CLUTCH
1
2
3
PHOTO
INTERRUPTOR
1
2
ELECTRIC-
CLUTCH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
1
2
THERMISTOR
1
2
3
4
5
ACR/CTD SEMSOR
1
2
3
4
5
ACR/CTD SEMSOR
1
2
3
4
5
ACR/CTD SEMSOR
1
2
3
PHOTO
INTERRUPTOR
1
2
ELECTRIC-
CLUTCH
1
2
ELECTRIC-
CLUTCH
1
2
SPEAKER
1
2
SWITCH
1
2
SWITCH
1
2
SWITCH
1
2
3
4
5
6
7
8
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
PHOTO
INTERRUPTOR
1
2
THERMISTOR
1
2
THERMISTOR
1
2
3
PBA- F_CRUM
1
2
3
PHOTO
INTERRUPTOR
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
DC MOTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
DC MOTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
DC MOTOR
1
2
THERMISTOR
1
2
3
4
STEP MOTOR
1
2
3
4
STEP MOTOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
ELECTRIC-
CLUTCH
ELECTRIC-
CLUTCH
1
2
ELECTRIC-
CLUTCH
1
2
1
2
3
4
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
PHOTO
INTERRUPTOR
1
2
DC MOTOR
1
2
3
4
5
6
7
PBA-CASSETE
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
ELECTRIC-
CLUTCH
1
2
3
FAN
1
2
3
FAN
1
2
3
PHOTO
INTERRUPTOR
1
2
3
4
5
6
1
2
3
FAN
1
2
3
4
HUMIDITY /
TEMPARAT URE
SENSOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
DC MOTOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PBA-FINISHER_IF
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DRAWER ˀ CONNECTOR
AMP, 5-292178-1
(see SCF part for more information)
D-SUB
7501S-15G1T
J11
J10
J9
J8
J7
J6
J5
J4
J3
J2
J1
J22
J21
J20
J19
J18
J17
J16
J15
J14
J13
J12
PBA-HVPS_L
CN7
(ROSE 䝬䞌㟝, Magnolia 㜄㉐⏈
㇠㟝 㙼 䚜.)
1
2
3
4
5
6
7
8
9
10
11
12
GND
GND
GND
24VS2
24VS2
5V3
PWM_FUSER_BIAS
PWM_DEV_DC_4
PWM_DEV_DC_2
PWM_DEV_DC_1
PWM_DEV_DC_3
PWM_SAWPLATE
1
2
3
PWM_LSU_SIDE_FAN
SENS_FAN_LSU_DISE
GND
1
2
3
4
GND
WAST E_FULL
ON_WASTE_LED
5V3
CN3
CN4
CN34CN33
CN1
CN2
1
2
3
4
PBA-
WAST E_SENSOR
1
2
3
FAN
CN9
PBA-TB_CRUM_IF
1
2
3
4
5
6
7
8
(NC)
(NC)
GND
SCL
DATA
VCC
(NC)
(NC)
CN1 (CRUM Y)
CN2 (CRUM C)
CN3 (CRUM M)
CN4 (CRUM K)
1
2
ON_DMOT_TNR_1
EN_DMOT_TNR_1
CN5 (MOT Y)
1
2
ON_DMOT_TNR_2
EN_DMOT_TNR_2
CN6 (MOT M)
1
2
ON_DMOT_TNR_3
EN_DMOT_TNR_3
CN7 (MOT C)
1
2
ON_DMOT_TNR_4
EN_DMOT_TNR_4
CN8 (MOT K)
CN1
PBA-ITB_CRUM_IF
CN11
1
2
3
4
5
6
7
8
TSEN_VCONT_1,2,3,4
24VS1
TONER_C ON_1,2,3,4
GND
GND
SCL2_LPEC3
SDA_LPEC3
3.3V
CN12 (DEVE 1)
CN3 (DEVE 2)
CN4 (DEVE 3)
CN5 (DEVE 4)
1
2
5V3
EN_ERASER_123,4
CN7 (ERASER 1)
CN8 (ERASER 1)
CN9 (ERASER 1)
CN10 (ERASER 1)
PBA-DEVE_CRUM_IF
PBA-CLX8540_ENGINE
CLX-8540ND
ENGINE PBA
PBA-FDB
PBA-SMPS
CN40
HVPS3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
GND
GND
GND
GND
24VS2
24VS2
5V_HVPS
PWM_FUSER_BI AS_N
PWM_FUSER_BI AS_P_S2
PWM_DEV_DC_4_S2
PWM_DEV_DC_2_S2
PWM_DEV_DC_1_S2
PWM_DEV_DC_3_S2
PWM_SAWPLATE_S2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN1
PBA-HVPS_S
5.2.2 Engin controller