Samsung ML-4500 Service Manual E.16
Schematic Diagrams
10-1Samsung Electronics
D
E
F
8
12345 8
A A
B
C
R&D CHK:
D
E
F
Engineer:
Drawn by:
1
Size:
MFG ENGR CHK:
DATE : 2000.04.14 REV: 0.2
Drawing Number:
Page: 1
TITLE:
6
APOLLO
SMPS
PAPER SENSOR
HVPS
DOC CTRL CHK:
PRINTER DIV
72345
SAMSUNG
67
B
C
CN4-1
1
ML-4500
A3
27
28
26
1K
R32
15
4
36
34
35
3
4
24V
GND24
2
R49 39
8
6
7
4
5
2
R34
1K
30
220pF
C58
220pF
C57
220pF
C56
5
6
GND24
13
12
R52 39
9
74F14
U11-6
C52
1nF
+5V
+5V
24
39R51
3
8
9
GND5
33
GND5
5.1K
R61
C7
50V
100uF
C72
R59
5.1K
C71
470pF 470pF
U11-5
74F14
11
10
5.1K
R58
4
2
39R50
GND5
1K
R110
R40
1K
25
GND5
1K
R31
16
20
15
17
14
GND5
GND5
470pF
C70
13
470pF
C69
11C46
1nF
39R53
+5V
3
GND24
2
C99
100nF
C6
16V
100uF
C2
16V
GND5
1K
R41
+5V
22uF
1
C59
220pF
6
CN1-1
5
C39
1nF
23
1K
R109
D7
MMSD914T1
1nF
C38
R60
5.1K
R56
5.1K
100nF
C102
100pF
GND5
1nF
C37
C64
5.1K
22
GND5
FGND
+5V
R54
32
1K
R33
+5V
+5V
GND5
SEN_5V
21
1K
R36
R64
200
100nF
1nF
C36
CN3-1
1
C100
18
+5V
13
29
12
10
11
8
GND5
F2
2
13
R65
STS104B
C73
470pF
33K
GND24
C54
220pF
C101
100nF
SEN_5V
+24VS
200R63
10K
R108
GND5
R55
5.1K
MMSD914T1
D6
C74
470pF
C60
220pF
7
9
9
8
1K
R39
74F14
U11-4
R38
1K
12
14
GND5
SEN_5V
GND5
10
GND5
R35
1K
C51
1nF
1nF
C68
+24VS
GND5
GND24
R57
5.1K
200R62
GND5
100R119
7
31
3
100pF
C63
+5V
19
220pF
C53
10
GND
6
GND
16
CN5-1
1
C18
2
C2 C3
34
C4 C5
57
C6 C789C8 C9
C10 C11
12 13
C12 C13
14 15
C14 C15
17 18
C16 C17
19 20
74F1071SCX
U12
C1
1
11
R37
1K
R106
GND5
1K
BIASPWM
220pF
C55
FUSER_ON
*EXIT
THVREAD
*THV_EA
THVPWM
*MHV
PPD(0)
*ACK
BUSY
PERROR
SELECT
*FAULT
PPD(0:7)
PPD(1)
PPD(4)
PPD(2)
PPD(3)
PPD(5)
PPD(6)
PPD(7)
*STBIN
*INIT
*SLCTIN
*AUTOFD
*PEMPTY
*FEED
10-1 Main Circuit Diagram(1/5)
10. Schematic Diagrams
Schematic Diagrams
10-2 Samsung Electronics
Main Circuit Diagram(2/5)
Drawing Number:
345678
A A
B
E
F
D
F
Engineer:
1
E
Drawn by:
R&D CHK:
DOC CTRL CHK:
MFG ENGR CHK:
DATE : 2000.04.14
REV:
7
C
D
C
TITLE:
SAMSUNG
PRINTER DIV
ML-4500
A3
Page: 2
20MHz
Size:
8
12
B
0.2
APOLLO
23456
GND
41
NC
OUT
58
VCC
Q2
1
3
2
20MHz
OSC4
C84
KSC1623-G
5.6K
100nF
R10
R12
5.6K
C113
10nF
100nF
C105
3.3V3.3V
B1
+5V
B2
4
GND
5
6
ORG
2
SK
8
VCC
KM93C66G
U6
CS
1
DC
7
3
DI
DO
MMSD914T1
D3
100nF
GND5
GND5
C103
33
R19
10K
10K
R97
R98
GND5
+5V
10K
GND5
R101
R81 10K
10KR80
C25
1nF
GND5
R48
4.3K
C12
B4
22pF
10K
R99
13
33R20
STS104B
F3
2
100nF
C86C85
100nF
10KR83
GND5
OSC3
28.74448MHz
4
GND NC
1
5
OUT VCC
8
+5V
+5V
GND5
GND5
C23 820pF
3
2
8
4
1
+5V
LM393D
U3-1
GND5
GND5
+5V
R82
10K
C79
100nF
100R116
R18
33
+24VS
100nF
C90
C87
100nF
100R115
100R114
1nF
C49
C83
100nF
R100
GND5
10K
C20
GND5
GND5
39pF
1nF
C24
R17
33
R86
10K
+5V
GND5
+5V +5V
GND5
MMSD914T1
D1
R46
GND24
R47
4.7K
2K
GND5
100nF
C88
100nF
C81 C77
100nF
D4
MMSD914T1
10K
R85
1K
R29
10KR87
GND24
C9
22pF
MMSD914T1
D2
GND5
100
R120
C82
100nF
+5V
100nF
C80
100nF
C78
1nF
C47
MC33269DT
U4
1
GND
3
IN OUT
2
47pF
C10
1
199
_XDREQ/GPI
_SLCTIN
151
_STROBE
129
_VCLK
128
_VDI
122
_VDO1/GPO
_VDO2/GPO
121
57
_WE
187
_WTD_OUT/GPO
_XDACK/GPO
200
_PHGA9/GPO
20
52
_RAS0
_RAS1
53
49
_RCS0
_RCS1/GPO
50
_RCS2
51
_RESET
182
152
16
29
_PHGA1/PHINA
28
_PHGA2/PHINB
27
_PHGA3/PHINC
26
_PHGA4/PHIND
24
_PHGA5/GPO
_PHGA6/GPO
23
_PHGA7/GPO
22
_PHGA8/GPO
21
_INIT
162
_IORD/GPO
161
_IOWR/GPO
126
_LREADY/GPI
_OE
56
_PHGA10/GPO
19
18
_PHGA11/GPO
_PHGA12/GPO
17
_PHGA13/GPO
_ECS2/GPO
8
_EINT0/GPI
9
_EINT1/GPI
10
_EINT2/GPI
130
_EXWAIT/GPI
155
_FAULT
_HSYNC1/GPI
125
127
_HSYNC2/GPI
153
TXD1/GPO
TXD2/GPO
189
159
_ACK
154
_AUTOFD
54
_CAS0
_CAS1
55
12
_ECS0
13
_ECS1
14
SVDDA
1
5
SVSSA
169
TEST0
170
TEST1
171
TEST2
188
TONE_OUT/GPO
TXD0/GPO
193
191
103
SC_CUR0
104
SC_CUR1
SC_CUR2
106
107
SC_CUR3
156
SELECT
196
SLED0/GPO
197
SLED1/GPO
198
SLED2/GPO
RTC_XOUT
194
RXD0/GPI
192
RXD1/GPI
190
RXD2/GPI
3
SAIN
4
SAVRB
2
SAVRT
102
SC_CONPHA/GPO
105
SC_CONPHB/GPO
PPD5
148
PPD6
149
PPD7
PWMO0/GPO
118
119
PWMO1/GPO
120
PWMO2/GPO
RTC_VDD
201
202
RTC_XIN
203
38
PHOE9/GPIO
40
PLL_FIL
183
142
PPD0
PPD1
143
144
PPD2
145
PPD3
146
PPD4
147
PHOE16/_HOED
PHOE1/GPIO
31
32
PHOE2/GPIO
PHOE3/GPIO
33
PHOE4/GPIO
34
PHOE5/GPIO
35
PHOE6/GPIO
36
PHOE7/GPIO
37
PHOE8/GPIO
157
PERROR
41
PHOE10/GPIO
PHOE11/GPIO
42
43
PHOE12/GPIO
44
PHOE13/_HOEA
45
PHOE14/_HOEB
46
PHOE15/_HOEC
47
165
LF_CUR1
167
LF_CUR2
168
LF_CUR3
LF_PH0/GPO
163
166
LF_PH1/GPO
123
LSU_CLK/GPO
184
OSCI
185
OSCO
205
GVRT
204
GVSSA
ICE/TCK
132
ICE/TDI
133
134
ICE/TDO
135
ICE/TMS
136
ICE/_TRST
LF_CUR0
164
181
25
GND239GND358GND476GND5
101
GND6
108
GND7
GND8
124
150
GND9
GIOP4
174
GIOP5
175
GIOP6
GIOP7
176
177
GIOP8
178
GIOP9
11
GND1
GND10
172
GND11
208
207
GAD_IN1
206
GAD_IN2
137
GIOP0
138
GIOP1
179
GIOP10
139
GIOP2
140
GIOP3
173
D4
64
D5
65
D6
66
D7
D8
68
69
D9
DC_SIN0/GPI
116
117
DC_SIN1/GPI
GAD_IN0
D10
71
D11
72
D12
73
D13
74
D14
75
D15
D2
61
62
D3
63
CRIA0/GPO
111
CRIA1/GPO
112
CRIB0/GPO
114
CRIB1/GPO
CR_PHA/GPO
110
113
CR_PHB/GPO
D0
59
60
D1
70
A6
A7
85
A8
86
87
A9
158
BUSY
6
CIS_CLK
7
CIS_SI
CLKOUT/GPO
180
109
A18
A19
98
79
A2
A20
99
A21
100
80
A3
A4
82
A5
83
84
A10
A11
90
A12
91
A13
92
A14
93
94
A15
95
A16
A17
96
97
186
48
5VDD1
5VDD2
67
89
5VDD3
5VDD4
141
195
5VDD5
A0
77
A1
78
88
3VDD1
15
30
3VDD2
3VDD3
81
115
3VDD4
3VDD5
131
3VDD6
160
3VDD7
U1
KS32C65100
R28
1.2K
R13
5.6K
C89
100nF
1nF
C40
+5V
1M
OSC1
R15
GND5
C11
22pF
220pF
C126
KSC1623-G
Q1
3
2
GND5
GND5
5.6K
R11
R117 100
C104
100nF
GND5
GND5
4
GND5
+5V
3
2
GND5
C48
1nF
GND5
C1
22uF
16V
+5V
GND5
B5
+5V
GND5
GND5
100nF
C76
CN2-1
1
C124
16V
33uF
THVREAD
*MHV
*KEY_DEMO
*ROMCS
*WR
*RD
THERM_A
THERM_B
INSTPAR
L1
TXD0
*KEY_CANCEL
*KEY_TONER
RXD0
TXD0
COVER_OPEN
THERM
FAN
CLUTCH
*USB_DACK
*EXIT
USB_RST
PTL
*LD_ON
*NEW_DEVE
LED_DATAI
LED_PAPERI
LED_ERRORI
LED_TONERI
*KEY_TONER
*KEY_DEMO
*KEY_CANCEL
DCU_DATA
DCU_CLK
*CAS0
*CAS1
*USB_CS
*USB_IRQ
*HSYNC
*LREADY
VDO
*THV_EA
DEV_FUSE
*PEMPTY
*FEED
COVER_OPEN
FUSER_ON
FUSER
D(8)
D(9)
D(10)
D(11)
D(12)
D(13)
D(14)
D(15)
PPD(0:7)
PPD(1)
PPD(2)
PPD(3)
PPD(4)
PPD(5)
PPD(6)
PPD(7)
*SLCTIN
*INIT
*AUTOFD
*FAULT
SELECT
PERROR
BUSY
*ACK
*WTD_OUT
3.3V
THERM
3.3V
RXD0
A(0:18)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
D(0)
D(0:15)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
3.3V
A(0)
*EGMOT_A0
*EGMOT_B1EGMOT_PHA
EGMOT_PHB
*EGMOT_A1
*EGMOT_B0
PMOTOR
EXT_CLK
THVPWM
BIASPWM
*RAS0
*RAS1
*POR
*USB_DREQ
FUSER
PPD(0)
*STBIN
3.3V
Schematic Diagrams
10-3Samsung Electronics
Main Circuit Diagram(3/5)
4
A
D
E
D
E
F
Engineer:
F
A
Drawn by:
R&D CHK: Size:
TITLE:
DOC CTRL CHK:
MFG ENGR CHK:
SAMSUNG
PRINTER DIV
DATE : 2000.04.14
REV: 0.2
APOLLO
1
Drawing Number:
Page: 3
65
8
7
2345678
123
0
ML-4500
A3
B
C
B
C
U13-6
DM7406MX
13
12
R26
DM7406MX
U13-5
11
10
10K
+5V
GND5
R107
C112
100nF
+5V
C35
1nF
GND5
GND5
GND5
C91
100nF
100nF
C95
100nF
DM7406MX
U13-3
5
6
C94
GND5GND5GND5
C125
68pF
R113
100
U11-2
74F14
3
4
7
1
14
2
GND5
74F14
U11-1
GND5
C34
GND5
GND5
GND5
GND5
1nF
MMSD914T1
D5
1nF
C45
C128
100pF
C127
100pF
_OE
12
_RESET
11
_WE
RB420D T147
D11
D4
40
D5
42
D6
44
D7
30
D8
32
D9
9
NC1
NC2
10
13
NC3
14
NC4
VCC
37
VSS1
46
VSS2
27
15
_BUSY
_BYTE
47
_CE
26
28
21
A5
20
A6
19
A7
18
A8
8
A9
7
D0
29
31
D1
34
D10
36
D11
39
D12
41
D13
43
D14
45
D15
D2
33
D3
35
38
25
A0
A1
24
A10
6
5
A11
4
A12
3
A13
2
A14
A15
1
A16
48
17
A17
16
A18
A2
23
A3
22
A4
AM29F800B-70EC
U8
68pF
R42
C96
100nF
R44
33pF
NC4
12
32
NC5
OE*
29
14
RAS*
UCAS*
30
1
VCC1
VCC2
6
21
VCC3
13
WR*
41
DQ16
3
DQ2
DQ3
4
5
DQ4
DQ5
7
8
DQ6
DQ7
9
10
DQ8
DQ9
33
GND1
22
37
GND2
GND3
42
31
LCAS*
16
NC1
NC2
15
NC3
11
A1
18
19
A2
A3
20
23
A4
A5
24
25
A6
A7
26
27
A8
A9
28
DQ1
2
34
DQ10
DQ11
35
36
DQ12
DQ13
38
39
DQ14
DQ15
40
U9
KM416C1200BLJ-6
17
A0
1nF
C33
GND5
1nF
C32
100nF
C93
14
30
UCAS*
VCC1
1
6
VCC2
VCC3
21
WR*
13
DQ4
7
DQ5
DQ6
8
9
DQ7
DQ8
10
33
DQ9
22
GND1
GND2
37
GND3
42
LCAS*
31
NC1
16
15
NC2
11
NC3
12
NC4
NC5
32
29
OE*
RAS*
23
24
A5
A6
25
26
A7
A8
27
28
A9
2
DQ1
DQ10
34
DQ11
35
DQ12
36
38
DQ13
DQ14
39
40
DQ15
DQ16
41
DQ2
3
4
DQ3
5
KM416C1200BLJ-6
U10
A0
17
18
A1
A2
19
20
A3
A4
U13-4
DM7406MX
9
8
+5V
+5V
C5
22uF
16V
10nF
GND5
C119
+5V
C98
1K
R30
10K
100nF
R45
R79
2
31
33pF
KIA7045P
U5
+5V
100
R118
R96
10K
C92
100nF
1nF
+5V
GND5
C31
GND5
68pF
R43
GND5
GND5
*RD
+5V
C97
100nF
*CAS0
D(15)
D(14)
D(13)
D(12)
D(11)
D(10)
D(9)
D(8)
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
A(9)
A(8)
A(7)
A(6)
A(5)
A(4)
A(3)
A(2)
A(1)
A(0)
A(0:17)
D(0:15)
*ROMCS
*WR
D(11)
D(12)
D(13)
D(14)
D(15)
*F_POR
*WR
*RD
LED_DATA
LED_PAPER
LED_ERROR
LED_TONER
*POR
*F_POR
*WTD_OUT
*CAS1
*RAS1
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
D(15)
D(14)
D(13)
D(12)
D(11)
D(10)
D(9)
D(8)
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
D(8)
D(9)
D(10)
A(0) D(0)
*CAS0
*RAS0
*CAS1
LED_ERRORI
LED_TONERI
LED_PAPERI
LED_DATAI
A(18)
A(17)
A(16)
A(15)
A(14)
A(13)
A(12)
A(11)
A(10)
A(9)
A(8)
A(7)
A(6)
A(5)
A(4)
A(3)
A(2)
A(1)
A(0)
A(1)
A(2)
A(3)
Schematic Diagrams
10-4 Samsung Electronics
Main Circuit Diagram(4/5)
2 5678
A
B
C
D
C
E
F
Engineer:
D
E
F
A
B
MFG ENGR CHK:
DATE : 2000.04.14
48MHz
Drawn by:
R&D CHK:
DOC CTRL CHK:
REV: 0.2
Drawing Number:
Page: 4
34
Size:
TITLE:
SAMSUNG
1
PRINTER DIV
APOLLO
12345678
ML-4500
A3
4
18
TEST1
VBUS
16
VCC1
1
4
VCC2
VCC3
17
30
VCC4
VCC5
44
31
nCS
25
nDACK
nDREQ
26
nIRQ
27
33
nRD
28
nSOF
nWR
32
35
D7
19
DPULLUP
20
GIOP0
GIOP1
21
22
GIOP2
GIOP3
23
GND1
7
13
GND2
24
GND3
34
GND4
40
GND5OSCI
2
OSCO
3
RESET
29
14
TEST
8
A0
A1
9
10
A2
A3
11
12
A4
A5
15
6
D+
D-
5
D0
43
42
D1
D2
41
39
D3
D4
38
37
D5
D6
36
100nF
UNICON
U2
C107
27
27R71
+5V
R70
132
+5V
R69
470
D9
22pF
C13
C66
C22
39pF
C65
22pF 22pF
R68
100nF
1.5K
+5V
C106
132
GND5
GND5
GND5
GND5
+5V
C130
100pF
GND5
D10
GND5
GND5
100pF
C129
F4
2
13
B3
STS104B
R122
STS104B
F5
2
13
100
C3
22uF
16V
132
22uF
C4
D8
R104
10K
GND5
16V
GND5
C16
1nF
GND5
10K
R21
33
R124
C14
100pF
22pF
C17
GND5 GND5
B7
R23 33
22pF
C19
OSC2
1
GND5
GND5
C50
1nF
B6
CN6-1
787780-1
1M
1
GND5
R16
C18
22pF
GND5
+5V
GND5GND5
GND5
GND5
10K
R103
10uF
C8
GND5
+5V
GND5
3
16V
GND5
2
GND5
GND5
100pF
C15
R102
10K
GND5
C110
100nF100nF
C75C109
100nF100nF
C108
2
13
33R22
BMS800
F6
48MHZ
4
GND NC
1
5
OUT VCC
8
+5V
*USB_CS
OSC5
USB_RST
VBUS
VBUS
A(0:5)
D(8:15)
A(0)
A(1)
A(2)
A(3)
A(4)
A(5)
*USB_DACK
*USB_DREQ
*USB_IRQ
*RD
*WR
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
USB_CLK
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