Sharp AR-M236 (serv.man4) Service Manual ▷ View online
AR-M236/M276/M237/M277 CIRCUIT DIAGRAM (MCU PWB) 3 - 4
/PB
/FAXREQ
1
/RD
/ESCS
0
/ESAC
K
0
/ESPRD
/LDON
/f1
/INTR
/CPUSYNC
/DATCK
/ESRE
Q
1
/FAXCS0
/SCANSP
CPUCLK
/SAM
P
/OB
/SCANST
ADSD
/VIDEO
/REFCK
/LWR
/f2
/FR
ADWRT
/PRSTART
/T
RANSST
/SHASIC
CCDD[7..0]
/SCANST
SHSEL
/DUMC
/MRESET
SFCLK
/MRES
SFCLK
/PCL
CS0
/PCL
ACK
0
/PCL
PRD
/FAXPRD
/FAXAC
K
0
/DUM
ACK
ADSCLK
/SH
/SYNC
G3.3V
3.3V
3.3V
G3.3V
3.3V
3.3V
G3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
G3.3V
3.3V
3.3V
R112
47k
C
162
100p
R240
100
100
R123
47k
47k
R122
47k
NF102
ZJSR5101-223
R140
0
R154
0
+
C122
47u/16V
R239
NP(0)
NP(0)
TP102
1
1
TP101
1
1
TP100
1
1
C
234
1000
p
R
124
10
R
126
10
R
125
10
R
241
1k
R
202
47k
R503
NP(0)
NP(0)
TP511
1
1
TP503
1
1
TP504
1
1
TP505
1
1
TP506
1
1
TP507
1
1
TP508
1
1
TP509
1
1
TP502
1
1
TP510
1
1
NB131
1
NB144
1
NB137
1
NB148
1
NB150
1
NB151
1
NB153
1
NB167
1
NB168
1
NB157
1
NB158
1
NB159
1
NB161
1
NB163
1
NB165
1
NB169
1
NB172
1
NB174
1
NB176
1
NB178
1 NB180
1
NB182
1
NB192
1
NB195
1
NB197
1
NB202
1
NB243
1
NB242
1
NB193
1
NB149
1
N
B
235
1
N
B
215
1
N
B
225
1
N
B
232
1
N
B
236
1
N
B
216
1
N
B
226
1
N
B
233
1
N
B
237
1
N
B
217
1
N
B
205
1
N
B
218
1
N
B
227
1
N
B
207
1
N
B
198
1
N
B
199
1
N
B
208
1
N
B
200
1
N
B
201
1
N
B
209
1
N
B
240
1
NB238
1
NB105
1
NB109
1
NB118
1
R
553
33
R
554
33
N
B
658
1
C516
NP(1000p)
C
517
N
P
(2200p)
NB670
1
NB669
1
C
126
22000
p
C
225
0.
1u
IC103
NC7S32M5X
NC7S32M5X
1
2
4
5
3
C
264
0.
1u
+
C
145
47u/
16V
C
258
0.
1u
C
222
0.
1u
C
229
0.
1u
C
260
0.
1u
FB101
IC202
74VHC164AM
A
1
B
2
CLK
8
CLR
9
QA
3
QB
4
QC
5
QD
6
QE
10
QF
11
QG
12
QH
13
VCC
14
GND
7
IC107
HG73C079H02FD
BDO
UTD6
BDO
UTD7
89
BDO
UTD8
90
BDO
UTD9
91
BDO
UTD1
0
92
BDO
UTD1
1
93
BDO
UTD1
2
94
VCC
95
BDO
UTD1
3
96
BDO
UTD1
4
97
VSS
98
BDO
UTD1
5
99
VSS
100
LD
101
VSS
102
APCHOL
D
103
PRINTAREAEN
104
VCC
105
VSS
106
NC(ST
)
107
VCC
108
NC(SW
)
109
TEST2
110
VSS
111
FAXCS0
112
FAXR
E
Q
1
113
FAXACK0
114
FAXPRD
115
ESC
S
0
116
ESREQ1
117
ESA
C
K
0
118
ESPRD
119
PCL
CS0
120
VCC
121
PCL
ACK0
122
PCL
PRD
123
VSS
124
BDIN0
125
BDIN1
126
BDIN2
127
BDIN3
128
BDIN4
129
BDIN5
130
BDIN6
131
BDIN7
132
VCC
133
BDIN8
134
BDIN9
135
VSS
136
SFCLK
137
DUMC
153
PB
152
OB
151
DUMMY
150
VSS
149
VSS
148
VCC
147
VCC
146
BDIN15
145
BDIN14
144
BDIN13
143
BDIN12
142
BDIN11
141
BDIN10
140
SYNC
139
VSS
138
ADWRT
168
ADSD
167
VSS
166
F1
165
VSS
164
SH
163
VSS
162
F2
161
VSS
160
REFCK
159
VSS
158
DATCK
157
VSS
156
FR
155
VCC
154
IDIN3
182
IDIN4
183
dmypclksw
184
VCC
185
VSS
186
CPUCLK
187
VSS
188
CPUWR
189
CPURD
190
RESET
191
PRINTST
192
IDIN2
180
IDIN6
179
IDIN1
178
IDIN7
177
IDIN0
176
VSS
175
dmypclk
174
VCC
173
VCC
172
VSS
171
ADSCLK
170
ADCK
169
IDIN5
181
VSS
200
VSS
199
VSS
198
VCC
197
TR
AN
SST
196
RECEPT
S
T
195
SCANSP
194
SCANST
193
CPUAD4
230
CPUAD5
229
CPUAD6
228
CPUAD7
227
VSS
226
VSS
225
VCC
224
VCC
223
VSS
222
VSS
221
CPUSYNC
220
CPUINT
R
219
CPUDT
0
218
CPUDT
1
217
CPUDT
2
216
CPUDT
3
215
CPUDT
4
214
VSS
213
CPUDT
5
212
CPUDT
6
211
VCC
210
CPUDT
7
209
CPUDT
8
208
CPUDT
9
207
CPUDT
1
0
206
CPUDT
1
1
205
CPUDT
1
2
204
CPUDT
1
3
203
CPUDT
1
4
202
CPUDT
1
5
201
CPUAD1
CPUAD2
232
CPUAD3
231
C
265
0.
1u
C
231
0.
1u
C
257
0.
1u
C
160
0.
1u
C
120
0.
1u
C
223
0.
1u
C
255
0.
1u
C
142
0.
1u
FB104
IC117D
74LVX08MTC
12
13
11
14
7
C
286
0.
1u
C
249
0.
1u
C
259
0.
1u
C144
12p
12p
B
R
115
47kx4
1
8
2
7
3
6
4
5
X100
OSC51(32MHz)
/CONT
1
OUT
3
VDD
4
GND
2
C
125
0.
1u
X102
OSC51(56.32602MHz)
/CONT
1
OUT
3
VDD
4
GND
2
C
287
0.
1u
C
230
0.
1u
C
248
0.
1u
C
268
0.
1u
C
124
12p
C
221
0.
1u
C
143
22000p
IC106
NC7S08M5X
NC7S08M5X
1
2
4
5
3
FB102
C
251
0.
1u
C121
0.1u
C
253
0.
1u
C
224
0.
1u
C
228
0.
1u
FB100
FB105
MEM2012T101R
C
263
0.
1u
C
256
0.
1u
C
250
0.
1u
C
227
0.
1u
C
267
0.
1u
R111
47k
47k
C
261
0.
1u
C
262
0.
1u
C
235
0.
1u
C
254
0.
1u
IC
117C
74LV
X
08M
TC
9
10
8
14
7
FB103
C
226
0.
1u
C
252
0.
1u
C
233
0.
1u
NF101
ZJSR5101-223
NF100
ZJSR5101-223
R580
470
470
674
R581
470
NB675
1
MEMD
A7
MEMD
A8
MEMD
A9
MEMD
A10
MEMD
A11
MEMD
A12
MEMD
A13
MEMD
A14
MEMD
A15
(10-2E)
(3-1B
, 5-4B)
(3-1B)
(3-1B)
(1-3C)
(9-3B)
(2-1A)
(2-1A)
(2-1A)
(2-1A)
(2-1A)
(9-3B)
(9-2B)
GDATA3
GDATA2
GDATA1
GDATA0
GDATA2
GDATA1
GDATA0
GDATA7
GDATA6
GDATA5
GDATA4
GDATA6
GDATA5
GDATA4
GDATA9
GDATA8
GDATA8
GDATA15
GDATA14
GDATA13
GDATA12
GDATA11
GDATA10
GDATA14
GDATA13
GDATA12
GDATA11
GDATA10
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(2-3E)
(2-4D, 3-2B)
(3-2B)
(10-2D)
(10-2E)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(9-3D)
(1-2A, 9-3E)
CCDD4
CCDD3
CCDD5
CCDD2
CCDD6
CCDD1
CCDD7
CCDD0
CCDD3
CCDD5
CCDD2
CCDD6
CCDD1
CCDD7
CCDD0
(3-2B, 4-3B)
(1-3D, 3-1B, 8-3A)
(1-3D, 3-1B, 8-3A)
(1-3D, 3-1B, 8-3A)
(1-3D, 3-1B)
(3-2B
, 4-3B)
(3-2B)
(2-2E, 3-2B)
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A2
A3
A4
A5
A6
A7
(1-2A, 3-1B)
C
C
D
D
E
E
4
3
2
1
2/16
AR-M236/M276/M237/M277 CIRCUIT DIAGRAM (MCU PWB) 3 - 5
/FINSRDY
LPSEL
APCSTT
/LDON
PFULL2
PCLSTS
/PCLSRDY
PCLCMD
/GDIDET
/PCLDET
/PCLCRDY
/PCLACK1P
/PCLCS1P
/PCLREQ0P
/PCLREQ1P
/PCLACK0P
ESSTS
/ESSRDY
ESCMD
/ESPAGE
/ESDET
/ESCRDY
/ESACK1P
/ESCS1P
/ESREQ0P
/ESREQ1P
/ESACK0P
/ESCS0P
/FAXCRDY
FAXSTS
/TRANSST
/PRSTART
/PRSTART
/SCANST
/SCANSP
/SCANSP
SHSEL
/FAXREQ1
/FAXACK0
/FAXACK0
/FAXCS0
/FAXACK1
/FAXCS1
/FAXREQ0
CPUCLK
/CPUSYNC
/LWR
/MRESET
/CS3
/HWR
/RD
/SHASIC
SF
T
CNT
SPF
CNT
/DREQ1
/DREQ0
A[20..1]
MMD
Y1
A#
Y1
B#
Y2
#
/PAP1
H
/L
UD1
H
CSS1
H
/M
M
RDY#
/PM
RDY#
HPSIZE1
HPSIZE2
/HPIN
/HPEM
PTY
DEV
#
TM
D
O
1
TM
D
O
2
FIN
STS
/F
INCRDY
HPTRAY1
/FAXREQ0P
/PCLSRDY
PCLCMD
/GDIDET
/PCLDET
PCLCMD
/GDIDET
/PCLDET
/ESSRDY
ESCMD
/ESPAGE
/ESDET
ESCMD
/ESPAGE
/ESDET
PCMON
HPTRAY2
/PCLCS0P
/PCLACK0P
/PCLREQ1P
/FAXREQ1P
/FAXSRDY
FAXCMD
PSFANMD
HVSEL3
HVSEL2
HVSEL2
HVSEL1
TC
TCLON
CVSEL
MC
/BIAS
GRID
HLON1
PG
SO
L
1
PG
SO
L
2
PSR
S
O
L
PREM
S
O
L
/PCLCS0P
/ESCS0P
PR
/ESACK0P
/ESREQ1P
/FAXSRDY
FAXCMD
FAXCMD
/FAXREQ1P
/FAXREQ0P
/FAXREQ0P
/FAXCS1
/FAXREQ0
/FAXREQ0
/FAXACK1
F
INCM
D
/PIN
/FAXCS0P
/FAXPAGE
/FAXCS0P
/FAXDET
/FAXACK0P
/FAXACK0P
/FAXDET
/FAXACK0P
/FAXPAGE
PCM
O
N
/FAXACK1P
/FAXCS1P
/FAXCS1P
M
IRCNT
HPSOL
GA3.3V
3.3V
3.3V
3.3V
3.3V
C
374
0.
1u
C
375
0.
1u
C
372
0.
1u
C
371
0.
1u
C
370
0.
1u
C
349
0.
1u
C
348
0.
1u
C
347
0.
1u
C
346
0.
1u
C
345
0.
1u
C
342
0.
1u
C
373
0.
1u
C
340
0.
1u
C
339
0.
1u
C
338
0.
1u
C
337
0.
1u
C
336
0.
1u
C
335
0.
1u
C
358
0.
1u
C
359
0.
1u
C
362
0.
1u
C
369
0.
1u
C
366
0.
1u
C
367
0.
1u
C
363
0.
1u
C
364
0.
1u
C
365
0.
1u
C
169
47u/
16V
R269
1k
1k
C
341
47p
R164
47k
47k
BR178
10kx4
10kx4
1
8
2
7
3
6
4
5
BR171
10kx4
10kx4
1
8
2
7
3
6
4
5
BR170
10kx4
10kx4
1
8
2
7
3
6
4
5
BR168
10kx4
10kx4
1
8
2
7
3
6
4
5
C
344
22p
C
343
22p
NF104
ZJSR5101-223
TIMEOUT
TP114
1
1
OP
CAS
C
N
T
T
P
107
1
1
DPXCNT
T
P
108
1
1
BR174
1.5kx4
1.5kx4
1
8
2
7
3
6
4
5
BR175
1.5kx4
1.5kx4
1
8
2
7
3
6
4
5
R
309
1.
5k
R
310
1.
5k
BR169
10kx4
10kx4
1
8
2
7
3
6
4
5
BR176
1.5kx4
1.5kx4
1
8
2
7
3
6
4
5
BR177
47kx4
1
8
2
7
3
6
4
5
BR162
10kx4
10kx4
1
8
2
7
3
6
4
5
C
368
0.
1u
TP517
1
1
TP518
1
1
NB308
1
NB310
1
NB305
1
NB307
1
NB319
1
NB313
1
NB316
1
NB330
1
NB334
1
NB322
1
NB326
1
NB342
1
NB344
1
NB338
1
NB340
1
NB346
1
NB348
1
NB375
1
NB377
1
NB373
1
NB378
1
NB393
1
NB395
1
NB397
1
NB379
1
NB380
1
NB382
1
NB384
1
NB386
1
N
B
269
1
N
B
283
1
NB2
5
7
1
N
B
270
1
N
B
284
1
N
B
296
1
NB2
5
8
1
N
B
271
1
N
B
297
1
NB2
5
9
1
N
B
272
1
N
B
285
1
N
B
298
1
NB2
6
0
1
N
B
273
1
N
B
286
1
N
B
299
1
NB2
6
1
1
N
B
274
1
N
B
287
1
N
B
300
1
NB2
6
2
1
N
B
275
1
NB2
6
3
1
N
B
276
1
N
B
289
1
N
B
301
1
NB312
1
NB315
1
NB318
1
NB325
1
NB329
1
NB333
1
NB337
1
NB339
1
NB341
1
NB343
1
NB345
1
B
R
180
1.
5kx4
1
8
2
7
3
6
4
5
N
B
288
1
N
B
252
1
N
B
253
1
N
B
249
1
N
B
250
1
N
B
391
1
IC128
HG73C094FD
UART0CTSB
1
P0OUT6
2
P0OUT5
3
P0OUT7
4
P3OUT4
6
P3OUT3
7
P3OUT2
9
P3OUT1
10
P3OUT0
11
P0OUT8
12
P2OUT5
13
P0OUT12
14
P0OUT11
15
P0OUT10
16
P0OUT9
17
GND
8
P2OUT6
61
TIMEOUT
62
UART2CTSB
63
UART2SIN
64
ESACK0PB
46
ESCS0PB
48
UART2RTSB
49
UART2SOUT
50
FAXACK1PB
51
FAXCS1PB
52
FAXREQ1PB
53
FAXREQ0PB
54
TRANSSTB
55
PRSTARTB
56
SCANSTB
58
SCANSPB
59
P1IN8
40
ESACK1PB
41
ESCS1PB
42
ESREQ0PB
43
ESREQ1PB
45
VCC
18
P3OUT7
19
P0IN15
20
GND
21
PWMOUT
22
UART3RTSB
23
UART3SOUT
24
UART3CTSB
25
UART3SIN
26
P1IN13
27
P1IN9
28
PCLACK1PB
29
PCLCS1PB
30
PCLREQ0PB
31
PCLREQ1PB
32
PCLACK0PB
33
PCLCS0PB
34
UART1RTSB
35
UART1SOUT
36
UART1CTSB
37
UART1SIN
38
P1IN12
39
GND
47
GND
60
VCC
44
VCC
57
VCC
5
P1
IN1
4
65
P1
IN1
0
66
FAXACK0
PB
67
F
A
X
C
S0
PB
68
FAXREQ
1
B
70
FAXA
C
K
0
B
71
GND
72
FAXC
S
0
B
73
FAXA
C
K
1
B
74
FAXCS1
B
75
FAXR
E
Q
0
B
76
SHB
77
CS3
B
78
LWR
B
79
HW
RB
80
RDB
81
VCC
82
CPUCL
K
83
RST
B
84
GND
85
CPUSYNC
B
86
A1
87
VCC
69
A2
88
A3
89
A4
90
A5
91
A6
92
A7
93
PM
C4
TCL
K
94
VCC
95
PM
C3
TCL
K
96
PM
C2
TCL
K
97
GND
98
PM
C1
TCL
K
99
PM
C0
TCL
K
100
DREQ1
B
101
DREQ0
B
102
D1
5
103
P0
IN1
1
230
Y3
229
Y2
228
Y1
227
GND
226
W
225
T
224
VCC
223
TEST1
222
P0
O
U
T1
3
221
P1
O
U
T7
220
P2
O
U
T2
219
P2
O
U
T1
218
VCC
249
UART
0
S
OUT
248
TM
D
0
2
247
TM
D
0
1
246
P1
IN4
245
P2
IN4
244
P0
O
U
T1
243
P0
O
U
T0
242
P0
IN7
241
P0
IN6
240
GND
239
P0
IN5
238
P2
IN1
237
VCC
236
P2
IN0
235
P1
IN7
234
P1
IN6
233
P0
IN1
3
232
P0
IN1
2
231
UART
0
S
IN
256
P2
IN3
255
P2
IN7
254
P2
IN6
253
GND
252
P2
IN5
251
UART
0
R
T
S
B
250
TP519
1
1
BR158
10kx4
10kx4
1
8
2
7
3
6
4
5
TP207
1
1
TP206
1
1
N
B
251
1
T
P
515
1
1
NB611
1
TP554
1
1
R557
100
R556
100
R555
100
NB661
1
NB662
1
C
520
0.
1u
R
583
470
R
582
470
R
584
470
N
B
678
1
N
B
677
1
N
B
676
1
D[15..0]
(7-2A)
(7-4A)
(7-4A)
(7-4A)
(7-4A)
(7-3A)
(7-3A)
(7-3A)
(7-3A)
(7-3A)
(7-3A)
(7-3A)
(7-3A)
(7-4A)
(3-4B)
(2-1D)
(12-4A)
(9-3B)
(9-3C)
(9-3C)
(9-3B)
(9-3B)
(9-3C)
(9-3B)
(9-3C)
(9-3C)
(9-3C)
(9-3B)
(9-3B)
(9-3C)
(9-2C)
(9-2B)
(9-2B)
(9-2B)
(9-2B)
(9-2C)
(9-2B)
(9-2C)
(9-2C)
(9-2C)
(9-2B)
(9-2C)
(9-3B)
(9-3C)
(2-4D, 4-3B)
(2-3D, 4-3B)
(2-3D, 4-3B)
(2-2E, 2-4D)
(2-4D)
(2-4D)
(2-1C)
(2-1D)
(2-1D)
(2-1C, 5-4E)
(2-2E)
(1-3A)
(1-3A)
(1-3D, 2-3D, 8-3A)
(1-3D, 8-3A)
(1-3D, 2-3D, 8-3A)
(1-3D, 2-3D)
(1-2E, 2-3D, 4-3B)
(1-2A, 2-4C)
A1
A2
A3
A4
A5
A6
A7
(1-4A)
(1-4A)
(1-4A)
(1-1D)
(1-1D)
D15
D14
(7-2A)
(7-2A)
(7-4D)
(7
-1D)
(11-3B)
(11-4A)
(7-4D)
(7-4D)
(4-4C)
(4-4C)
(11-3B)
(11-3B)
(3-3B)
(11-3B)
(11-3B)
(11-3B)
(4-3D)
(4-3D)
(11-4B)
(11-4A)
(11-4A)
(4-4E)
(4-4E)
(4-4E)
A
A
B
B
C
C
4
3
2
1
MCU PWB (I/O ASIC SECTION)
AR-M236/M276/M237/M277 CIRCUIT DIAGRAM (MCU PWB) 3 - 6
SF
T
CNT
SPF
CNT
/DREQ1
/DREQ0
LED1
LED2
LED3
DSCLK
CL
DSIN0#
DSIN2A#
DSIN2B#
DSIN3#
SFTHP#
POUT2
POUT1
MIRMODA
MIRMODB
/MIRMODA
/MIRMODB
YSPF#
TRAYPAPER
SPFPSOL
SPFRSOL
SPFGSOL
/FINDET
DRUM
CSW
POUTCOV
PDPX
/INCHJP
/ABJP
SPFCLH
SFTDA
/CV_COPY#
/CV_COPY#
SFTDB
/SFTDA
/SFTDB
DPXDB
/DPXDA
/DPXDB
CV_SIZE1
CV_SIZE0
CV_SIZE0
CV_SIZE2
CV_SIZE3
SELA
SELB
SELC
PCS
1
A
PCS1
B
P
C
L1B
PCL
2
LU
M
1
B
LU
M
2
PCS2
O
P
CASDB
/O
PCAS
D
B
/O
PCASDA
T
RCL
A
T
RCL
B
PCL
1
A
LU
M
1
A
PM
D
MMD
O
P
CASDA
LED0
MIRMO2
MIRMO1
MIRMO0
MIRMO1
MIRMO0
/DUP2MODB
/DUP2MODA
DUP2MODB
DUP2MODA
/DUP2MODA
DUP2MODB
DUP2MODA
PSR
S
O
L
PCS1
H
PCL
1
H
PREM
S
O
L
CV_COUNT
CV_START
CV_CA
CV_STAPLE
CV_DPX
DPXDA
M
IRCNT
HPSOL
LU
M
1
H
GA3.3V
3.3V
3.3V
BR173
47kx4
1
8
2
7
3
6
4
5
DPXCNT
T
P
108
1
1
/SPFPOUT#
TP111
1
1
SPFMCLK
TP117
1
1
B
R
179
1.
5kx4
1
8
2
7
3
6
4
5
BR172
1.5kx4
1.5kx4
1
8
2
7
3
6
4
5
R163
1.5k
R162
47k
47k
NB2
6
3
1
N
B
276
1
N
B
289
1
N
B
301
1
NB2
6
4
1
N
B
277
1
N
B
290
1
NB2
6
5
1
N
B
278
1
N
B
291
1
N
B
302
1
NB2
6
6
1
N
B
279
1
N
B
292
1
N
B
303
1
NB2
6
7
1
N
B
280
1
N
B
293
1
N
B
304
1
NB2
6
8
1
N
B
281
1
N
B
294
1
NB282
1
NB295
1
B
R
180
1.
5kx4
1
8
2
7
3
6
4
5
N
B
288
1
N
B
252
1
N
B
253
1
N
B
255
1
N
B
256
1
NB306
1
NB309
1
NB311
1
NB314
1
NB324
1
NB328
1
NB332
1
NB321
1
NB336
1
NB335
1
NB323
1
NB327
1
NB331
1
NB320
1
NB347
1
NB349
1
NB350
1
NB352
1
NB353
1
NB354
1
NB351
1
NB356
1
NB357
1
NB358
1
NB355
1
NB360
1
NB361
1
NB362
1
NB359
1
NB364
1
NB365
1
NB366
1
NB363
1
NB368
1
NB369
1
NB367
1
NB371
1
NB372
1
NB374
1
NB370
1
NB376
1
NB383
1
NB385
1
NB381
1
NB387
1
NB389
1
NB390
1
NB317
1
NB388
1
NB394
1
NB396
1
NB398
1
NB392
1
NB400
1
NB399
1
C128
C094FD
VCC
PM
C3
TCL
K
96
PM
C2
TCL
K
97
GND
98
PM
C1
TCL
K
99
PM
C0
TCL
K
100
DREQ1
B
101
DREQ0
B
102
D1
5
103
D1
4
104
D1
3
105
D1
2
106
D1
1
107
VCC
108
D1
0
109
D9
110
GND
111
D8
112
D7
113
D6
114
D5
115
D4
116
D3
117
D2
118
D1
119
D0
120
VCC
121
DSL
ED0
122
DSL
ED1
123
GND
124
DSL
ED2
125
DSL
ED3
126
DSCL
K
127
P1
O
U
T0
128
DSIN0
129
DSIN1
130
DSIN2
131
DSIN3
132
VCC
133
P0IN0
134
P0IN2
135
GND
136
P0IN1
137
PMC1POUT2
153
PMC1POUT1
152
P2IN2
151
P0IN10
150
GND
149
P0IN9
148
P0IN14
147
VCC
146
Y0
145
PMC0POUT4
144
PMC0POUT3
143
PMC0POUT2
142
PMC0POUT1
141
P0OUT4
140
P0OUT3
139
P0OUT2
138
P1IN3
168
P1IN2
167
P1IN1
166
P1IN0
165
P0IN8
164
P0IN4
163
P0IN3
162
P1IN5
161
P1IN11
160
P1OUT4
159
P1OUT3
158
P1OUT2
157
P1OUT1
156
PMC1POUT4
155
PMC1POUT3
154
P2OUT9
182
P2OUT10
183
P2OUT11
184
VCC
185
P2OUT12
186
P2OUT13
187
GND
188
P2OUT14
189
P2OUT15
190
PWM1OUT
191
SELOUT0
192
P2OUT7
180
PMC3POUT4
179
PMC3POUT3
178
PMC3POUT2
177
PMC3POUT1
176
GND
175
PMC2POUT4
174
PMCPOUT3
173
VCC
172
PMC2POUT2
171
PMC2POUT1
170
P1IN15
169
P2OUT8
181
GND
200
P1
O
U
T9
199
P1
O
U
T8
198
VCC
197
P2
O
U
T3
196
P1
O
U
T6
195
SEL
O
U
T
2
194
SEL
O
UT1
193
GND
W
225
T
224
VCC
223
TEST1
222
P0
O
U
T1
3
221
P1
O
U
T7
220
P2
O
U
T2
219
P2
O
U
T1
218
P2
O
U
T0
217
P1
O
U
T1
5
216
P1
O
U
T1
3
215
P0
O
U
T1
5
214
GND
213
P0
O
U
T1
4
212
P1
O
U
T1
4
211
VCC
210
P1
O
U
T1
2
209
P1
O
U
T5
208
PM
C4
PO
UT4
207
PM
C4
PO
UT3
206
PM
C4
PO
UT2
205
PM
C4
PO
UT1
204
P2
O
U
T4
203
P1
O
U
T1
1
202
P1
O
U
T1
0
201
N
B
251
1
T
P
515
1
1
T
P
516
1
1
N
B
254
1
R558 47k
R559 47k
R560 47k
/SPFOPEN#
TP112
1
1
/SPFCOVER#
TP113
1
1
R
583
470
R
582
470
R
584
470
N
B
678
1
N
B
677
1
N
B
676
1
(1-4A)
(1-4A)
(1-4A)
(1-1D)
(1-1D)
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
(7-1D)
(4-4A)
(4-4A)
(4-4A)
(4-4A)
(4-4A)
(4-4A)
(4-4A)
(4-4A)
(7-4D)
(4-4E)
(4-3A)
(4-3A)
(4-3A)
(4-3A)
(11-2D
(11-2D)
(11-2D)
(12-3B)
(4-3A)
(4-3A)
(4-3A)
(4-3A)
(11-2D
(11-2D)
(11-2D)
(12-3B)
(12-4A)
(4-2D)
(4-2D)
(4-1E)
(4-1E)
(4-1E)
(4-1E)
(4-1E)
(4-1E)
(4-1E)
(10-4C)
(4-4C)
(4-4C)
(4-4C)
(4-4C)
(4-4C)
(4-3D)
(4-4C)
(4-3D)
(12-4D)
(12-4A)
(12-4B)
(10-4E)
(12-4A)
(12-4B)
(10-4E)
(4-3D)
(4-3D)
(4-3D)
(4-3D)
(4-3D)
(4-3D)
(4-3D)
(12-2B)
(12-2B)
(12-2B)
(11-1D)
(7-1A)
(7-2A)
(7-1A)
(7-2A)
(7-2A)
(6-3B)
(6-3B)
(6-3B)
(6-3B)
(7-2A)
(7-1A)
(7-2A)
(7-2A)
(6-3B)
(6-3B)
(6-3B)
(6-3B)
(4-1A)
(7-2D)
(7-2D)
(7-2D)
(7-2D)
(7-2D)
(7-2D)
(4-1A)
(4-1A)
(4-1A)
(7-2A)
(7-2A)
(7-4D)
(7-1D)
(7-1D)
(4-3D)
(4-2D)
(4-2D)
(4-3D)
(7-1A)
(7-2A)
(7-4A)
(4-1A)
(4-1A)
(4-1A)
(4-1A)
(4-2D)
(4-2D)
(4-2D)
(4-2D)
(4-2D)
(4-2D)
(4-3D)
C
C
D
D
E
E
4
3
2
1
3/16
AR-M236/M276/M237/M277 CIRCUIT DIAGRAM (MCU PWB) 3 - 7
LUM1B
PCL2
LUM2
PCS1B
PCL1B
PCL1B
PCS2
TRCLB
PCL1A
/MIRMSEL
SELA
CSSELA#
SELB
CSSELB#
SELC
CSSELC#
OPCASDA
AI#
OPCASDB
BI#
/OPCASDA
/AI#
/OPCASDB
/BI#
FW
DSR
DSIN0
DSIN2A
CTS
SVCMD
DSIN3
SPFPAPER
DSIN2B
TMDO2
TMDO1
TRCLA
PCS1A
LUM1A
LUM1A
DEVCLK
/PSSTS
DEVIDDIR
/SFTDA
/SFTDB
/SFTDB
SFTDB
SFTDA
SFTDA#
/SFTDA#
APCSTT
LPSEL
/RESET#
SFTDB#
/MIRMODB
MIRMODB
/MIRMODA
MIRMODA
/SPFMODA#
/SPFMODB#
SPFMODB#
SPFMODA#
SPFMODB#
SPFMODA#
MIRMODB#
/MIRMODB#
/MIRMODA#
MIRMODA#
/DUP2MODB#
/DUP2MODA#
DUP2MODB#
DUP2MODA#
/SFTDB#
/DUP2MODB
/DUP2MODA
DUP2MODB
DUP2MODA
FW#
3.3V
5V
5V
3.3V
3.3V
3.3V
3.3V
C399
0.1u
0.1u
0.1u
C127
74LCX244MTC
IC108
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
VCC
20
GND
10
BR184
100x4
100x4
1
8
2
7
3
6
4
5
BR185
100x4
100x4
1
8
2
7
3
6
4
5
R242
47k
47k
74LCX244WM
IC212
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
VCC
20
GND
10
Q200
DTC114EKA
IN
GND
OUT
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
VC
20
GN
10
C135
0.1u
C177
0.1u
0.1u
C398
0.1u
0.1u
R507
NP(47k)
0.1u
C164
74LCX244MTC
IC125
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
VCC
20
GND
10
IC500
TC7SBD385A
A
1
B
2
GND
3
/OE
4
VCC
5
R506
47k
47k
C
4
2
4
N
P
(1
0
00p)
C
4
2
5
N
P
(1
0
00p)
C
4
2
6
N
P
(1
0
00p)
C
430
N
P
(1000p)
C
423
N
P
(1000p)
C
422
N
P
(1000p)
C
4
2
1
N
P
(1
0
00p)
C
128
N
P
(1000p)
C
129
N
P
(1000p)
C
1
3
0
N
P
(1
0
00p)
C
1
3
1
N
P
(1
0
00p)
R510
0
R512
NP(0)
R549
470
R548
NP(0)
NB426
1
NB428
1
NB429
1
NB427
1
NB430
1
NB432
1
NB433
1
NB431
1
NB444
1
NB446
1
NB447
1
NB445
1
NB448
1
NB450
1
NB451
1
NB449
1
NB434
1
NB416
1
NB419
1
NB421
1
NB435
1
NB436
1
NB437
1
NB438
1
NB439
1
NB454
1
NB455
1
IC131
74
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
VCC
20
GND
10
IC130
74VHC
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
VCC
20
GND
10
NB423
1
BR116
100x4
100x4
1
8
2
7
3
6
4
5
NB405
1
NB408
1
NB412
1
NB414
1
R577
470
470
NB671
1
BR117
100x4
100x4
1
8
2
7
3
6
4
5
DEVID
To Motor Driver
To 2n
& TM
& TM
To
To Option C
To Option Connector PWB
To 2nd Cassette UNIT
To CRUM
(3-4D, 4-3E)
(3-4D, 4-3E)
(3-4D, 4-3E)
(3-4D, 4-3E)
(3-4D, 4-3E)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(10-3A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(11-1A)
(3-4B)
(3-4B)
(1-3D)
(3-4B)
(1-3D)
(3-4D)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4D)
(3-4C)
(3-4D)
(3-4D)
(3-4D)
(3-4D)
(3-4C)
(3-4D)
(3-4C)
(3-4D)
(3-4D)
(3-4D)
(3-4D)
(11-2D)
(11-1D)
(11-1D)
(11-1D)
(12-1A)
(12-1B)
(12-3A)
(12-3A)
(11-1D)
(11-1D)
(11-1D)
(12-1A)
(12-1B)
(12-3A)
(12-3A)
A
A
B
B
C
C
4
3
2
1
MCU PWB (DRIVER SECTION 1)
Click on the first or last page to see other AR-M236 (serv.man4) service manuals if exist.