Sharp AM-300 (serv.man4) Service Manual ▷ View online
AM-300DE
6 – 7
7. Printer Controller Block (6/10)
Printer
Controller
Block
6/10
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
6
6
5
5
4
4
3
3
2
2
1
1
DG
DG
DG
+5V
DG
DG
DG
+5V
+5V
DG
+5V
+5V
DG
+5V
DG
DG
DG
+5V
DG
DG
+5V
DG
DG
DG
DG
DG
+5V
DG
APC_AUTO
RTH
/MVSYNC
/LASERON
LDEN
/MDSRDY
MCON
/MDREADY
PWM2
PMD
TC/BSON
/PMRDY
PWM0
/MDPAGE
/MCPRDY
/PWMINT
/MPCURES
/MSYNC
/MEPRDY
ST
EP
/NMI
SAMPON
/ZC
/MSTS
/MDCRDY
/MEN
/PU
MB
/PUMA PUMB PU
MA
P86
P85
CCW
/MPCURES
P87
/NMI
P87
TCT1
PMCLK
HLON
/MMRES
TCT2
P86
/DOP
/ROLSNS /PIN
OPEN_TRAY
PWRLY
VFM
/MSCLK
SYN_LON
P85
PWM1
/MCMD
/POUT2
PE_BY
TCT0
/POUT1
TXD RXD SCK3
TXD
RXD
SCK3
C198 0.1U
R251
100
R252 10K
C107 N.M.
R261
100
R276
10K
R238
10K
R247 10K
R260
33
R241
10K
R239
10K
R271
100
TP51
R243
10K
C197
15P
R273
10K
R245
10K
R430
0
R374 10K
R257
33
R248
10K
R240
10
R274
10K
R235
33
R266 10K
R384
33
R258
10
C191 1000P
R234
0
R272
0
R262
100
R270 10K
C195 2200P
R237
10K
P87
1
P86
3
NMI
5
P85
7
RESET
9
DG
2
TXD
4
RXD
6
SCK3
8
+5V
10
1
3
5
7
91
0
8
6
4
2
CNICEM
B10B-PHDSS
R259
33
R268 10K
R265 10K
R233
33
R269 10K
C194 2200P
R431
0
C200 0.1U
R236
10
TP52
R256
100
R253
100
TP89
C199 0.1U
X1
5
AVCC
3
X2
4
VSS
9
P66/FTIOC1
48
P67/FTIOD1
49
P85
16
P86
15
P87
14
P20/SCK3
41
P
21/RXD
40
P22/TXD
39
P23
38
P72/TXD_2
69
P14/IRQ0
25
P70/SCK3_2
67
P71/RXD_2
68
VCL
6
VCC
12
P15/IRQ1/TMIB1
26
P16/IRQ2
27
P17/IRQ3/TRGV
28
PB3/AN3
78
PB5/AN5
80
P30
24
P33
21
PB2/AN2
77
P96
65
PB0/AN0
75
PB4/AN4
79
VSS
50
P80/FTCI
51
P81/FTIOA
52
PB6/AN6
1
P90/SCK3_3
59
P91/RXD_3
60
P92/TXD_3
61
P74/TMRIV
70
P77
73
P82/FTIOB
53
PB7/AN7
2
RES
7
TEST
8
P51/WKP1
35
P50/WKP0
36
P34
20
P36
18
P35
19
P37
17
P52/WKP2
34
P5
3/WKP3
33
P10/TMOW
56
P11/PWM
57
P12
58
OS
C
1
11
P54/WKP4
32
P55/WKP5/ADTRG
31
OSC2
10
P56/SDA
30
P57/SCL
29
P97
66
P
75/TMCIV
71
P76/TMOV
72
P24
37
P63/FTIOD0
45
P62/FTIOC0
44
P61/FTIOB0
43
NMI
13
P64/FTIOA1
46
P60/FTIOA0
42
AVSS
74
P31
23
P32
22
PB1/AN1
76
P84/FTIOD
55
P93
62
P94
63
P95
64
P83/FTIOC
54
P65/FTIOB1
47
IC2
1
HD64F36049HV(Flash),
HD64336047A06HV(Mask)
X5 20MHz
R244
10K
C193 470P
R255
100
R432
0
R232
33
R250
N.M.
C192 470P
R242
10K
K
A
AK
D13
MC2850
C196
15P
R275
10K
TP50
R264 10K
R263
33
R249
100
R267 10K
R254
33
R246
10K
(3-B1) (3-B1) (3-B1)
(4-B1)(7-B2)(7-B4)(7-D3)
(4-G2)(6-G2)(9-A4)
(4-B1) (4-H1)
(4-H1)
(4-H1)
(8-B5)
(10-D5)
(8-B5)(8-E3)
(8-E3)
(7-D2)
(7-B2)(7-B5)
(7-E3)
(7-B5) (7-B4)
(7-B4)
(6-G2)
(4-B1) (4-H1)
(4-H1)
(8-F2)
(10-E3)
(7-D2) (8-B4) (8-B4) (8-B4)
(9-A5)
(7-B3)
(9-D5) (9-G4) (10-B2) (10-B2) (10-B2)
(6-G2) (6-G2) (6-G2)
(9-B2)
(9-B3) (9-B3)
(9-B3)
(9-D6) (9-D6) (9-D6) (9-D6)
(10-E3)
(10-E6)
(10-E4) (10-E5) (10-E5)
(8-B2)
(6-I2) (6-I2) (6-I2)
(6-I2) (6-I2) (6-I2)
(4-G2)(6-B4)(9-A4)
(6-B5)
(6-B5)
(6-B5)
(6-B4)
(6-F5)
(6-F5)
(6-F5)
AM-300DE
6 – 8
8. Optical Unit (LSU) Control Block (7/10)
Optical
Unit
(LSU)
Control
Block
7/10
NOTE:
This
mark
indicates
a
safety-critical
part(s).
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
6
6
5
5
4
4
3
3
2
2
1
1
DG
DG
DG
MG
+5V
DG
+5V
DG
MG
+5V
DG
+5V
DG
+5V
MG
DG
+5V
+5V
DG
MG
DG
DG
INT5V
DG
+5V
DG
+5V
DG
DG
+5V
+5V
+5V
DG
+5V
DG
+24V
DG
DG
INT5V
+24V
DG
DG
DG
+5V
DG
DG
+5V
DG
+5V
DG
DG
INT5V
MG
DG
INT5V
/PMRDY
PMCLK
/LASERON
LDEN
PMD
PMD
APC_AUTO
SYN_LON
MPDATA
/MSYNC
/MSYNC
/MSYNC
SAMPON
R279
100
12
13
11
14
7
IC24D
74LV08APW
C278
N.M.
4
5
6
14
7
IC24B
74LV08APW
R293
100
R278
100
C277
N.M.
R433 1K
1
6
IC27A
74LV1GW14ASCE
C208 33P
C276
N.M.
C213 33P
C211 33P
R281 10K
R287 10K
CLK
1
-READY
2
-START
3
GND
4
+24V
5
1
2
3
4
5
CNPM
A2001WV2-5PE
D
12
CLK
11
Q
9
Q
8
PR
10
CLR
13
IC26B
74AHC74PW
R284
100
R300 100
R285
MMZ1005Y102C
C203 0.1U
R299 N.M.
C204 0.1U
B
E
C
Q14
RT1N141C
R295 10K
R290 10K
11
10
14
7
IC25E
74LV06APW
C210 10P
R296
10
+
C206
10U/16V
R283 100
R
291
10K
9
10
8
14
7
IC23C
74LV32APW
C205 0.1U
R277 47(2W)
C209 100P
R282 10K
13
12
14
7
IC25F
74LV06APW
9
10
8
14
7
IC24C
74LV08APW
C215 0.1U
4
5
6
14
7
IC23B
74LV32APW
VCC
5
GND
2
IC27C
74LV1GW14ASCE
C207 0.1U
R297 100
98
14
7
IC25D
74LV06APW
1
2
3
14
7
IC24A
74LV08APW
R286
100
R280
27
R465
1K
B
E
C
Q15
RT1N141C
R294 100K
C214 0.1U
C280 N.M.
D
2
CLK
3
Q
5
Q
6
PR
4
CLR
1
IC26A
74AHC74PW
R292
100
C216 N.M. (1608)
DGND
1
-S/H
2
-VIDEO
3
-LDEN
4
DGND
5
+5V
6
DGND
7
-HSYNC
8
1
2
3
4
5
6
7
8
CNLSR
B8B-PH-K-S
C212 10P
3
4
IC27B
74LV1GW14ASCE
C279 N.M.
C202
0.1U/50V
(1608)
R289
100
A
K
D14
1SS355
R288
100
R301
33
R298
10
R302 10K
1
2
F5
KAB5002
251
NA29
VCC
14
GND
7
IC26C
74AHC74PW
Vout
3
GND
2
Vin
1
IC22
KIA7805API/P
1
2
3
14
7
IC23A
74LV32APW
(6-B4)
(6-B4)
(6-B4)(7-B2)
(6-B4)
(4-B1)(6-B6)(7-B2)(7-D3)
(6-F5)
(4-B1)(6-B6)(7-B4)(7-D3)
(6-B4)(7-B5)
(6-B4)
(4-B1)(6-B6)(7-B2)(7-B4)
(6-F5)
(6-B4)
AM-300DE
6 – 9
9. High Voltage Control & Thermistor Input Block (8/10)
High
Voltage
Control
&
Thermistor
Input
Block
8/10
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
6
6
5
5
4
4
3
3
2
2
1
1
+5V
DG
DG
DG
+5V
+5V
DG
DG
+5V
DG
DG
DG
DG
+5V
+5V
DG
+5V
DG
DG
DG
+5V
+5V
+5V
DG
+5V
DG
DG
+24VH
DG
DG
DG
DG
DG
+5V
+5
V
MG
+2
4V
+24V
MG
+24VH
DG
+5V
+5V
DG
MCON
MCON
PWM0
PWM2
/PWMINT
PWM1
FTH
RTH
TC/BSON
/DOP
3.98V
1
2
3
8
4
+
-
IC31A
BA10393F
C217 0.1U
R324 4.7K
C222 0.1U
C225 N.M.
R309
0
TP56
R327 10K
R312
10K
C230
0.1U/50V
(1608)
C227 0.1U
R317 10K
R308
33
R325
1M
4
5
6
14
7
IC29B
74LV08APW
C224 N.M.
TP60
C221 N.M.
1
2
3
14
7
IC29A
74LV08APW
C229
0.1U
(1608)
R323 10K
R326 5.1K-F
56
14
7
IC25C
74LV06APW
R329 20K-F
R310
33
+
C228 10U/16V
R307
100
C220 10P
TP59
R305 1K
TP61
R306
33
TP53
TP54
R330
1M
A
3
B
4
C
5
D
6
CLK
2
LOAD
9
CLR
1
QA
14
QB
13
QC
12
QD
11
RCO
15
VCC
16
GND
8
ENP
7
ENT
10
IC28
74HC161FP
R304
33
R320 20K-F
C219 0.1U
R328 100K
R318 4.7K
R314 100
TP57
R319 20K
PGND
1
PWMSIN
2
MCON
3
TCON
4
+24V
5
1
2
3
4
5
CNHV
A2001WV2-5P
12
14
7
IC25A
74LV06APW
R303
33
R321
0
R311
10K
R313
10K
RTH
2
+5V
1
1
2
CNRTH
B2B-PH-K-S
R322 100K
R315 47K
C218 100P
R316 47K
D0
4
D1
3
D2
2
D3
1
D4
15
D5
14
D6
13
D7
12
A
11
B
10
C
9
G
7
W
6
Y
5
VCC
16
GND
8
IC30
74HC151FP
7
6
5
8
4
+
-
IC31B
BA10393F
TP55
+
C223 N.M.
C226 N.M.
12
13
11
14
7
IC23D
74LV32APW
TP58
(6-B5)
(6-B5)(8-E3)
(6-F5)
(6-F5)
(6-F5)
(6-B5)(8-B5)
(6-B5)
(9-A5)
(6-F3)
(6-F6)
AM-300DE
6 – 10
10. Driver Block (9/10)
Driver
Block
9/10
NOTE:
This
mark
indicates
a
safety-critical
part(s).
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
6
6
5
5
4
4
3
3
2
2
1
1
DG
+5
V
+5V
+5V
+5V
+5V
DG
DG
DG
DG
+5V
+5V
+5V
+5V
+24V
DG
DG
DG
MG
MG
MG
+24V
MG
MG
+24V
MG
MG
MG
+5V
MG
MG
DG
MG
+5V
MG
MG
MG
MG
MG
FTH
PWRLY
/MPCURES
STEP
VFM
/PUMB
/PUMA
PUMB
PUMA
HLON
/PWRLY
/H
LON
/MEN
CCW
/MMRES
R342
100
R346 10K
PUMBD
1
PUMAD
2
PUMBD
3
PUMAD
4
VMT
5
VMT
6
1
2
3
4
5
6
CNPUM
A2001WV2-6P
C243 0.1U/50V
(1608)
C242 0.1U/50V
(1608)
C281
N.M.
C260
0.1U/50V
(1608)
C236 0.1U
C2
33
0.
1U
R355
N.M.
R341 10K
R348
0.22
(1W)
C240
0.01U/50V(1608)
R338 1K
VCC
14
GND
7
IC33C
74AHC74PW
+
C261
10U/16V
C282
N.M.
C241
0.22U/16V
(1608)
9
10
8
14
7
IC29C
74LV08APW
1
2
F6
KAB3202
102
NA29
C2
32
33P
D
12
CLK
11
Q
9
Q
8
PR
10
CLR
13
IC33B
74AHC74PW
R332
0
VFM+
1
N.C.
2
VFM-
3
1
2
3
CNFM
A2001WV2-3P
C231 33P
R334
0
R354
0
MA+
1
MB+
2
MA-
3
MB-
4
1
2
3
4
CNMM
B4B-PH-K-S
VBB1
22
OUT1B
21
OUT2B
4
VBB2
3
SENSE2
2
REF
17
SENSE1
23
STEP
16
PGND
6
OUT1A
24
OUT2A
1
VDD
15
CP1
8
CP2
9
ROSC
14
ENABLE
5
PG
ND
7
VCP
10
DIR
20
PGND
19
PGND
18
MS1
12
RESET
13
VREG
11
IC34
A3982SLB
R347 10K
R345 N.M.
R333
0
12
13
11
14
7
IC29D
74LV08APW
R352
0.22
(1W)
R353 N.M.
R336
0
R337 10K
B
E
C
Q18
RT5N141C
D
2
CLK
3
Q
5
Q
6
PR
4
CLR
1
IC33A
74AHC74PW
C237
0.01U/50V(1608)
R335
0
34
14
7
IC25B
74LV06APW
R349 10K
R350
1K
C239
0.01U/50V(1608)
R339
0
D21
UDZS6.2B
R344 10K
1
2
F7
KAB2402
402
NA29
+
C235
100U/50V
R340 10K
C238
0.01U/50V(1608)
R343
0
R331
0
1B
1
2B
2
3B
3
4B
4
5B
5
6B
6
7B
7
E
8
COM
9
7C
10
6C
11
5C
12
4C
13
3C
14
2C
15
1C
16
IC32
ULN2003AN
R351 3K
D15
1N4748
C234
0.1U/50V
(1608)
(8-B2)
(6-F5)
(4-G2)(6-B4)(6-G2)
(6-F5)
(6-F4)
(6-F4)
(6-F4)
(6-F4)
(6-F5)
(6-F5)
(6-F4)
(6-F4)
(10-D5)
(10-D5)
(6-F5)
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