Service manual
AR-FX7 ELECTRICAL SECTION 11 - 2
2. Circuit diagram
A. FAX MAIN PWB
8
8
7
7
6
6
5
5
D
C
B
A
VOL[A]
PCRXD
PCTXD
AU DCK
CPU_TDO
ASMD0-
LED
AU DSYN C-
AUDA TA3
AUDA TA2
CPU_TMS
AUDA TA0
TRST-
ASEBR KRK-
CPU_TCK
AUDA TA1
CP U_TDI
+1.8V
+3.3V
+5V
+3.3V
+3.3V
+3.3V
+1.8V
+3.3V
+3.3V
GN D
GN D
GN D
GND
GND
GN D GN D GND
GN D GN D
GND
GND
GN D
GN D
GN D
GN DGN D
+3.3V
+3.3V
+3.3V
GN D
MD3
CPURES-
FAXSRDY-
L_BT-
FAXCRDY-
FAXSTS
FAXCMD
PWOFF-
VOL[A]
DQMUL
DQMUU
GDMA
GC CH
GDMAE
S_EN
CI
RGDT-
CP U_ CKIO
SRAMCLR-
FAX MAIN PWB (CPU)
R273: Program FLASH
NM(Intel)/10K(Fujituu)
R274: Standard FLASH
NM(Intel)/10K(Fujituu)
TP427
TP1128
TP703
TP83
TP91
C12
F0.1u/16
R21 R(NM)
R273
10K
C400
F0.1u/16
TP682
C324
B1000/50
R33 R(NM)
TP157
TP730
C17
F0.1u/16
R23 10K
R36 R(NM)
TP81
TP747
FB5
MEM2012(NM)
TP742
C242 F0.1u/16
TP681
BR8
MNR04 4.7K
1
2
3
4 5
6
7
8
R10 6.8K
TP672
C10
F0.1u/16
TP1505
TP92
TP89
C18
F0.1u/16
TP93
R37 10K
C5
B470/50
C21
F0.1u/16
JP3 SD00415- 52(NM)
1 2
C23
F0.1u/16
R398 0(3216)(NM)
TP675
TP671
LED1 LT1P67A
R560 0
FB6
MEM2012(NM)
TP1130 JP2 SD00415- 52(NM)
1 2
R49
10K
R32 10K
FB4
MEM2012(NM)
R312
10K
TP82
R34 10K
R24 10K
C6
B470/50
C9
F0.1u/16
R313
10K
C326
A33u/10
R500 10K
R50
10K
TP74
TP88
C22
F0.1u/16
TP85
R5
3.3K
R230 0
TP90
R501 R( NM)
C410
F0.1u/16
TP80
TP674
R35 10K
TP1129
TP86
C8
F0.1u/16
R28 10K
TP1043
C7
F0.1u/16
TP75
R22 R(NM)
D18 DA204K
AK
A
K
TP705
R3 100
R561 100
TP673
R14 820
TP1042
R4 100
R19 10K
C409
C270/25
R17 820
TP1127
R502 R( NM)
R1
4.7K
TP73
X1
OSC515101J IS-19.6608M Hz-3.3TR
VDD
4
OUT
3
OE
1
GND
2
TP676
C16
F0.1u/16
TP76
C15
F0.1u/16
C11
F0.1u/16
R18 820
R25 0
R559R(NM)
TP94
LED2 LT1P67A
TP731
TP96
C19
F0.1u/16
C327
A33u/10
IC3
P2782A-08SR
VSS
5
FS1
3
XIN
1
MODOUT
6
LF
4
VDD
8
XOUT
2
FS0
7
TP679
TP78
CN1
S4B-PH-SM3-TB(NM)
1
2
3
4
CN2
NCS036-014-DS(NM)
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
R2
4.7K
TP680
BR9
MNR04 4.7K
1
2
3
4 5
6
7
8
C20
F0.1u/16
R505
0
R13 820
R15 10K
TP704
TP77
R51 33
R231 0
R11 10K
R9 0
FB20
MEM2012(NM)
TP158
TP687
TP1065
R274
10K
R407 100
R31 10K
R6
4.7K
IC1 HD6417709A F100
RESETOUT/PTD(2)
184
Vss(RTC)
6
VssQ
19
VssQ
33
VssQ
45
VssQ
57
VssQ
69
VssQ
83
VssQ
95
VssQ
109
VssQ
161
VssQ
181
Vss
27
Vss
79
Vss
132
Vss
152
Vss
153
Vss
173
Vss-PLL1
147
Vss-PLL2
148
AVss
198
AVss
208
Vcc(RTC)
3
VccQ
21
VccQ
35
VccQ
47
VccQ
59
VccQ
71
VccQ
85
VccQ
97
VccQ
111
VccQ
163
VccQ
183
Vcc
29
Vcc
81
Vcc
134
Vcc
154
Vcc
175
Vcc-PLL1
145
Vcc-PLL2
150
AVcc(3.3V)
205
XTAL
155
EXTAL
156
XTAL2
4
EXTAL2
5
CAP1
146
CAP2
149
RESETP
193
RESETM
124
MD0
144
MD1
1
MD2
2
MD3
195
MD4
196
MD5
197
CA
194
RxD0/SCPT(0)
171
TxD0/SCPT(0)
164
SOK0/SCPT(1)
165
RxD1/SCPT(2)
172
TxD1/SCPT(2)
166
SCK1/SCPT(3)
167
RxD2/SCPT(4)
174
TxD2/SCPT(4)
168
SCK2/SCPT(5)
169
RTS2/SCPT(6)
170
CTS2/IRQ5/SCP(7)
176
AUDATA(0)/PTG(0)
135
AUDATA(1)/PTG(1)
133
AUDATA(2)/PTG(2)
131
AUDATA(3)/PTG(3)
130
AUDSYNC/PTE(7)
94
TCK/PTF(4)/PINT(12)
139
TMS/PTF(6)/PINT(14)
137
TRST/PTF(7)/PINT(15)
136
TDI/PTF(5)/PINT(13)
138
ASEBRKAK/PTG(5)
128
AUDCK/PTH(6)
151
IRLS(0)/PTF(0)/PINT(8)
143
IRLS(1)/PTF(1)/PINT(9)
142
IRLS(2)/PTF(2)/PINT(10)
141
IRLS(3)/PTF(3)/PINT(11)
140
IRQ3/IRL3/PTH(3)
11
NMI
7
RAS2L/PTJ(1)
107
CASLH/CASU/PTJ(3)
110
CASHL/PTJ(4)
112
WE2/DQMUL/ICIORD/PTK(6)
91
WE3/DQMUL/ICIOWR/PTK(7)
92
IOIS16/PTG(7)
126
ADTRG/PTH(5)
125
PTG(4)
129
ASMD0/PTG(6)
127
AN(6)/DA(1)/PTL(6)
206
AN(5)/PTL(5)
204
TP716
C24
F0.1u/16
TP79
C13
F0.1u/16
R52 33
R558 330F
R504
R(NM)
Q1 KRC105S
B
E
C
BR7
MNR04 4.7K
1
2
3
4 5
6
7
8
TP133
C4
F0.1u/16
TP162
C14
F0.1u/16
TP132