Brother HL-4050CDN - Page 312

Confidential
6-8
Engine PCB Circuit Diagram (2/5)
20MHz
Analog
Analog
Analog
Analog
ANALOG
f=32kHz
ANALOG
ANALOG
ANALOG
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
4-1B
opc1_in3
3-3B
hv_grid_pwm2
4-1E
devrel_in2
4-1D
opc2_phb
3-3C
hv_dev_pwm3
3-3B
hv_grid_pwm1
4-1C
opc_vref_pwm
4-4B
dev_on
3-5A
hv_fuser_pwm
4-1C
opc2_in0
3-5B
hv_trcc_pwm2
3-5C
hv_trcc_pwm1
4-1E
devrel_in1
3-5B
hv_bcln1_pwm
4-4D
belt_clk
4-1B
opc1_in0
4-5F
el_on
4-1D
opc2_in2
4-5B
reg_sol
4-4C
cln_dir
3-7A
ld_ena
1-3C
CRNS_intr0_n
4-1E
devrel_pha
4-5E
dx_sol
4-4E
belt_on
4-1B
opc1_phb
3-7C
ld_on2
5-4E
lt1_sol
4-5A
t1_sol
3-7C
ld_pwr_pwm1
4-1D
opc2_pha
3-5B
hv_trcc_pwm3
4-5B
cln_hlt_sol
3-7C
ld_on1
3-7B
ld_on3
4-5D
cln_rel_sol
4-1B
opc1_pha
4-4F
scan_on
3-3B
hv_dev_pwm1
6B
tnr_cmp_pwm
1-6B
heat_on
4-1E
devrel_phb
3-3C
hv_grid_pwm4
3-3C
hv_dev_pwm4
3-3D
hv_dcln_on
5-4E
lt1_lift_drv
4-1B
opc1_in2
3-3C
hv_dcln_pwm
3-7B
ld_on4
3-5A
hv_trcc_pwm4
3-7C
ld_pwr_pwm2
3-3B
hv_grid_pwm3
4-1D
opc2_in1
4-4F
scan_clk
4-4A
dev_dir
4-4C
cln_on
4-4A
dev_clk
4-1E
devrel_in0
5-7C
dens_led_pwm
3-7B
ld_pwr_pwm3
4-4D
belt_dir
4-1B
opc1_in1
3-5B
hv_bcln2_pwm
4-1D
opc2_in3
4-5D
dens_sol
3-3B
hv_dev_pwm2
4-4C
cln_clk
3-1D
tnr_led
4-5C
mp_sol
4-1E
devrel_in3
3-7B
ld_pwr_pwm4
1-3C
CRNS_intr1_n
4-1F
devrel_vref_pwm
1E
tnr_sen1
1-1B
pnew_sen1
1E
tnr_sen2
1-1B
pnew_sen2
1-1B
pnew_sen3
1E
tnr_sen3
1-1B
pnew_sen4
1E
tnr_sen4
1-7C
ctl_bd0_n
1-7C
ctl_bd4_n
5-7C
reg_mark_pwm
5-1B
wst_tn_led
1-5E
debug_log_txd
5-4B
mp_pe_sen
3-7A
bd4_n
1-1C
cpu_a4
5-5A
devrel_sen
5-2C
wst_tn_sen1
3-7A
bd1_n
8E
tnr_sen4
4-4B
cln_lock
4-4F
scan_lock
1-1A
cpu_d1
1-1A
cpu_d2
1-1E
cpu_wr_n
5-4A
t1_pedg_sen
8D
tnr_sen3
8C
tnr_sen1
1-3C/5-5C
opc2_sen
4-4D
belt_lock
1-1F
cpu_cs_n
5-4B
mp_reg_f_sen
3-3C
grid_dcdet_n
4-4A
dev_lock
1-1B
cpu_d7
1-1C
cpu_a0
1-1C
cpu_a1
1-1C
cpu_a5
1-1C
cpu_a3
1-1C
cpu_a7
1-1D
cpu_a8
1-1B
cpu_d3
1-1A
cpu_d0
5-4A
t1_pe_sen
8C
tnr_sen2
1-1B
cpu_d4
1-1B
cpu_d6
5-3E
heat_lmt
5-4C
t1_reg_f_sen
1-1E
cpu_rd_n
1-1C
cpu_a6
1-1C
cpu_a2
1-1B
cpu_d5
1-1D
cpu_a9
5-5B
cln_rel_sen
1-3C/5-6C
opc1_sen
1-3D
CRNS_rst_n
1-3D
CRNS_clk
3-5D
hv_fuser_fb
3-3F
hv_dev_fb2
3-5D
hv_trcc_fb1
3-5E
hv_trcc_fb2
3-3E
hv_grid_fb3
3-5D
hv_trcc_fb4
3-5D
hv_bcln2_fb
3-3D
hv_dev_fb4
3-5E
hv_trcc_fb3
3-3F
hv_grid_fb2
3-3D
hv_grid_fb4
3-3E
hv_grid_fb1
3-3E
hv_dev_fb3
3-3D
hv_dcln_fb
3-5C
hv_bcln1_fb
3-3E
hv_dev_fb1
3-7D
ad_pd3
3-7D
ad_pd4
3-7D
ad_pd2
3-7D
ad_pd1
2E
tnr_cmp_pwm
1-1B
sen_led_on2
5-7B
reg_mark_sen1
5-7B
reg_mark_sen2
5-2D
wst_tn_sen2
R156
100
R155
100
R181
47
R177
47
R157
1k
R71
10k
R108
10k
R70
10k
R66
4.7k
R111
470k
R79
4.7k
R81
39k
R78
470k
R83
100
R75
10k
R77
4.7k
R62
470k
R68
100
R63
39k
R82
4.7k
R59
10k
R51
10k
R53
39k
R54
100
R52
470k
R80
4.7k
R73
1k
R187
10k
R182
10k
R197
100
R72
22k
R223
10k
R164
100
R166
100
R230
47
R222
47
R221
47k
R229
47k
R116
100
R115
39k
R50
120
(1608)
R56
120
(1608)
R74
120
(1608)
R99
120
(1608)
R210
10k
R241
100
R242
100
R239
100
R240
100
C106
C101
C137
C102
C113
C101
(For ESD)
C90
C101
(For ESD)
C148
C103
C145
C103
C142
C103
C130
C103
C117
C103
C108
C103
C101
C103
C96
C103
C95
C103
C89
C103
C93
C103
C92
C103
C91
C103
C94
C103
C102
C103
C109
C103
C119
C103
C129
C103
C144
C103
C72
C102
C47
C103
C46
C104
C54
C104
C53
C102
C51
C102
C39
C102
C44
C102
C31
C102
C35
C102
C77
C102
C165
C102
C163
C102
C164
C102
C166
C102
C159
C102
C161
C102
C162
C102
C160
C102
C147
C103
C150
C103
C169
C103
C152
C103
C155
C102
C154
C102
C151
C102
C153
C102
C172
C103
C168
C103
C167
C103
C157
C103
TP53
TP52
TP51
TP55
TP56
TP59
TP65
TP57 TP58 TP63
TP60
TP68
TP70
TP69
TP61
TP62
TP72
TP47
TP48
TP49
TP64
TP54
TP145
TP144
TP146
TP147
TP143
TP149
TP148
TP142
TP127
TP121
TP123
TP122
TP128
TP130
TP126
TP124
TP125
TP129
TP141
TP131
TP120
TP152
TP151
TP150
TP45
TP46
TP132
TP133
TP134
TP138
TP139
TP140
TP201
TP71
TP66
TP8
TP16
TP42
TP67
TP135
TP305
TP351
TP352
TP353
TP354
TP355
TP50
TP362
TP363
TP364
TP36
TP102
TP161
TP162
TP370
TP379
TP377
TP378
TP376
TP374
TP375
TP373
TP372
TP371
TP380
TP381
TP382
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGNDSGND
SGND
SGND
SGND SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
A3.3V
A3.3V
+5V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
U6
BA10339FV
7
6
1
U6
BA10339FV
5
4
2
U6
BA10339FV
9
8
14
U6
BA10339FV
11
10
13
U6
BA10339FV
3
V+
12
V-
Q14
2SB1197K (RANK:R)
C
B
E
Q15
DTC143ZE
(1608)
C
B
E
RA10
100
8
1
RA10
100
7
2
RA10
100
6
3
RA10
100
5
4
RA9
100
8
1
RA9
100
7
2
RA9
100
6
3
RA9
100
5
4
RA8
100
8
1
RA8
100
7
2
RA8
100
6
3
RA8
100
5
4
RA7
100
8
1
RA7
100
7
2
RA7
100
6
3
RA7
100
5
4
8
1
7
2
RA12
100
6
3
5
4
8
1
RA11
100
7
2
6
3
5
4
8
1
RA14
100
7
2
6
3
5
4
RA13
100
8
1
7
2
6
3
5
4
CN41
TNR_SEN1
1
PNEW_SEN1
3
TNR_SEN1
CN39
TNR_SEN3
1
PNEW_SEN3
3
TNR_SEN3
CN38
TNR_SEN4
1
PNEW_SEN4
3
TNR_SEN4
3
TNR_SEN2
CN40
TNR_SEN2
1
PNEW_SEN2
2
0V
2
0V
2
0V
2
0V
B4B-PH-K-K(LF)(SN)
4
LED_VCC
B4B-PH-K-R(LF)(SN)
4
LED_VCC
B4B-PH-K-E(LF)(SN)
4
LED_VCC
B4B-PH-K-Y(LF)(SN)
4
LED_VCC
U10
MB87L8670
BD1_N
175
BD4_N
178
HV_DCDET_N
55
AVD
27
AVS
28
VR1
25
VR2
26
N.C._14
14
N.C._39
39
AD_PD1
18
AD_PD2
17
AD_PD3
16
AD_PD4
15
HV_GRID_FB1
35
HV_GRID_FB2
38
HV_GRID_FB3
34
HV_GRID_FB4
30
HV_DEV_FB1
33
HV_DEV_FB2
37
HV_DEV_FB3
36
HV_DEV_FB4
32
HV_TRCC_FB1
21
HV_TRCC_FB2
19
HV_TRCC_FB3
20
HV_TRCC_FB4
22
HV_BCLN_FB1
29
HV_BCLN_FB2
23
HV_DCLN_FB
31
HV_FUSER_FB
24
BR_TSTMODEN
12
BR_TSTCLK
41
XTST
186
XSM
187
SMCK
10
MST
11
VPDT
195
LD_PWR_PWM1
197
LD_PWR_PWM2
193
LD_PWR_PWM3
188
LD_PWR_PWM4
182
LD_MOD_PWM1
198
LD_MOD_PWM2
194
LD_MOD_PWM3
191
LD_MOD_PWM4
183
LD_ENA_PWM
180
LD_ON1
196
LD_ON2
192
LD_ON3
184
LD_ON4
181
HV_GRID_PWM1
45
HV_GRID_PWM2
44
HV_GRID_PWM3
47
HV_GRID_PWM4
52
HV_DEV_PWM1
42
HV_DEV_PWM2
46
HV_DEV_PWM3
49
HV_DEV_PWM4
53
HV_TRCC_PWM1
57
HV_TRCC_PWM2
59
HV_TRCC_PWM3
63
HV_TRCC_PWM4
65
HV_BCLN_PWM1
62
HV_BCLN_PWM2
58
HV_DCLN_PWM
54
HV_FUSER_PWM
64
HV_DCLN_PLUS
56
VDD_3
3
VSS_2
2
VSS_13
13
VDD_43
43
VSS_40
40
VDD_51
51
VSS_50
50
VDD_61
61
VSS_60
60
VDD_73
73
VSS_72
72
VDD_86
86
VSS_85
85
VDD_97
97
VSS_96
96
VDD_108
108
VSS_107
107
VDD_120
120
VSS_119
119
VDD_128
128
VSS_126
126
VDD_131
131
VSS_130
130
VDD_139
139
VSS_140
140
VDD_143
143
VSS_142
142
VDD_155
155
VSS_154
154
VDD_165
165
VSS_164
164
VDD_177
177
VSS_176
176
VDD_190
190
VSS_189
189
VDD_201
201
VSS_200
200
U10
MB87L8670
CLK
141
RST_N
127
CPU_CS_N
112
CPU_WR_N
110
CPU_RD_N
111
CPU_A0
124
CPU_A1
123
CPU_A2
122
CPU_A3
121
CPU_A4
118
CPU_A5
117
CPU_A6
116
CPU_A7
115
CPU_A8
114
CPU_A9
113
BELT_LOCK_N
69
BELT_POS_SEN
208
CLN_LOCK_N
75
CLN_REL_SEN
102
DEV_LOCK_N
205
SCAN_LOCK_N
151
OPC1_SEN
172
OPC2_SEN
171
DEVREL_SEN
163
TNR_SEN1
170
TNR_SEN2
169
TNR_SEN3
168
TNR_SEN4
167
WST_TN_SEN
7
HEAT_LMT_N
174
T1_PE_SEN
105
T1_PEDG_SEN
106
T1_REG_F_SEN
109
MP_REG_F_SEN
146
MP_PE_SEN
147
REVIO0
4
REVIO1
6
REVIO2
9
REVIO3
79
REVIO4
80
REVIO5
82
REVIO6
145
REVIO7
162
REVIO8
179
REVIO9
185
REVIOA
199
REVIOB
206
INTR0_N
144
INTR1_N
138
CPU_D0
137
CPU_D1
136
CPU_D2
135
CPU_D3
134
CPU_D4
133
CPU_D5
132
CPU_D6
129
CPU_D7
125
BELT_CLK
70
BELT_ON
74
BELT_DIR
71
BELT_GAIN
68
CLN_CLK
76
CLN_ON
78
CLN_DIR
77
DEV_CLK
204
DEV_ON
202
DEV_DIR
203
SCAN_CLK
152
SCAN_ON
150
OPC1_PHA
88
OPC1_PHB
89
OPC1_IN0
84
OPC1_IN1
87
OPC1_IN2
90
OPC1_IN3
91
OPC2_PHA
95
OPC2_PHB
98
OPC2_IN0
93
OPC2_IN1
94
OPC2_IN2
99
OPC2_IN3
100
OPC_VREF_PWM
92
DEVREL_PHA
159
DEVREL_PHB
158
DEVREL_IN0
161
DEVREL_IN1
160
DEVREL_IN2
157
DEVREL_IN3
156
DEVREL_VREF_PWM
153
TNR_LED
48
TNR_CMP_PWM
166
WST_TN_LED
8
HEAT_ON
83
HEAT_RELAY_ON
81
DENS_LED_PWM
207
DENS_SOL
5
EL_ON
104
REG_SOL
149
T1_SOL
103
MP_SOL
148
LT1_SOL
67
LT1_LIFT_DRV
66
DX_SOL
173
CLN_REL_SOL
1
CLN_HLT_SOL
101
D
B
A
C
E
F
E
D
B
A
C
F
1 5
1 523 4 67 8
23 4 67 8
CPU I/F
Test
MOTOR
Fuser/Belt CLN
MOTOR
BELT
MOTOR
POLYGON
MOTOR
OPC DRUM
MOTOR1
OPC DRUM
MOTOR2
Toner Sensor
Waste Toner Sensor
Heator CTL
Sensor
Reserved IO
Density
Sensor
Sol
EL CTL
LD CTL
HVPS CTL
ANALOG POWER
Toner empty detect & New Toner cartridge detect
10k
4.7k
Engine ASIC (CHRONOS)
Development
Drive Motor
Development
Drive Motor
Toner empty detect
New Toner cartridge detect
NAME
CODE
CIR B512250 (2/5)
LM9474-001