208
KX-FC255CX-S
Z0.1u
C200
+5V
+3.3VA
R175
100
+5V
+2.5VD
+24V
+3.3VD
+6V
3.3VD
3.3VDa
24V
6Va
DG
6V
2.5VDa
5V
5Va
24Va
3.3VA
DGa
2.5VD
+2.5VA
+3.3VD
DB2
DB6
C153
10V Z4.7u
( )
R124
NC
A5
Z0.1u
C155
+3.3VD
A11
+2.5VD
3.3K
R211
A8
DB5
Z0.1u
C201
10
R210
( )
NC
C197
A15
C206
J100p
+2.5VD
DB4
24MHz
Z0.1u
C202
A1
+3.3VA
Z0.1u
C167
+3.3VD
Z0.1uC190
AIN1
+2.5VD
+3.3VD
Z0.1u
C159
+3.3VD
R149
10K
WR
+3.3VD
SYSRST
A0
+3.3VD
DB0
A12
Z0.1u
C160
2.2K
R150
A2
( )
C169
NC
DB3
A16
10K
R187
DB1
10
R209
A9
10K
R259
A18
Z0.1u
C204
A3
A13
K1000p
C170
+5V
C154
K0.1u
A6
+3.3VD
XRD
A17
DB7
SYSRSTa
J100p
C172
1.8K
R148
( )
C158
NC
A4
A10
+3.3VD
+2.5VD
10K
R188
( )
C173
( )
C196
NC
A14
A7
Q20
AMON
+3.0V
+3.0Va
ROMCS
ROMCSa
CE1
CE2
4.7K
R338
+5V
( )
NC
R139
Z0.1u
C157
R137
10
+5V
+3.3VD
+3.3VD
Z0.1u
C100
( )
J1
MFCS
( )
NC
C330
RBA6
IC16
1
A11
2
A9
3
A8
4
A13
5
A14
6
A17
7
WE
8
VDD
9
A18
10
A16
11
A15
12
A12
13
A7
14
A6
15
A5
16
A4
17
A3
18
A2
19
A1
20
A0
21
D0
22
D1
23
D2
24
VSS
25
D3
26
D4
27
D5
28
D6
29
D7
30
CE
31
A10
32
OE
+3.0V
IC12
2 INPUT AND GATE
1
INB
2
INA
3
GND
4
OUT
5
VCC
CN206
1
GND
2
+5V
3
KSTART
4
KLATCH
5
KRXD
6
KTXD
7
KSCLK
8
RESET
( )
C413
NC
( )
R170
( )
R171
( )
R173
( )
R174
CN14
1
AIN (SI)
2
GND
3
+3.3V
4
FTG (TGR)
5
FI (CLK)
6
LEDGND
7
LEDVCC
( )
R206
NC
R200
22K
R203
220
R204
220
R202
4.7K
+3.3VD
R145
1M
L605
R1
10
10K
R628
A
B
TEST
( )
C662
( )
C663
( )
C665
+3.0V
+5V
( )
C672
( )
C674
( )
C675
+24V
+5V
( )
C668
RF2.5V
( )
C664
+3.3VD
( )
C666
+5V
+3.3VD
( )
C667
( )
C669
( )
C676
( )
C670
( )
C677
( )
C678
Z0.1u
C660
Z0.1u
C661
J100p
C161
J100p
C174
IC13
1
OUT
2
VDD
3
VSS
4
NC
5
CD
K0.01u
C178
+3.3VD
Z0.1u
C681
IC10
1
VSSA
2
VDDA3.3
3
AIN1
4
AIN2
5
AIN3
6
AMON
7
VSSA
8
X32OUT
9
X32IN
10
3.3V/BATTIN
11
XBACKEN
12
XRAMCS
13
3.3V/BATTOUT
14
2.5V/BATTIN
15
FTG
16
F1
17
F2/OP
18
FA/OP
19
CPC/IP
20
RVN/IP
21
IRDATXD/IOP81
22
IRDARXD/IOP80
23
TXD/IOP30
24
RXD/IOP31
25
XRTS/IOP32
26
XCTS/IOP33
27
VDD2.5V
28
TONE1
29
TONE2
30
VOL1REF
31
VOL2OUT
32
VOL3IN
33
XNMI
34
FMEND0/IOP26
35
VDD3.3V
36
VSS
37
VSS
38
VDD3.3V
39
MIDAT/IOP45
40
MICLK/IOP46
41
MILAT/IOP47
42
20KOSC/IOP56
43
XWAIT/IOP60
44
XHSTRD/IOP40
45
XHSTWR/IOP41
46
XDPRBE/MUX/OP53
47
ADR15/OP
48
ADR14/OP
49
ADR13/OP
50
VDD2.5V
51
XOUT
52
XIN
53
VSS
54
VDD3.3V
55
XTEST
56
TEST1
57
TEST2
58
TEST3
59
TEST4
60
XMDMINT
61
XMDMCS
62
XRAS/IOP42
63
XCAS1/IOP43
64
XCAS2/IOP44
65
XRESCS2/OP71
66
DB3
67
DB2
68
DB4
69
DB1
70
DB5
71
VDD3.3V
72
VSS
73
VSS
74
VDD3.3V
75
DB0
76
DB6
77
DB7
78
XR0MCS
79
XRD
80
XWR
81
ADR0
82
ADR1
83
ADR2
84
ADR3
85
ADR4
86
ADR5
87
VSS
88
VDD2.5V
89
ADR6
90
ADR7
91
ADR8
92
ADR9
93
ADR10
94
ADR11
95
ADR12
96
RBA0
97
RBA1
98
RBA2
99
RBA3
100
RBA4
101
RBA5/OP
102
RBA5/IOP96
103
STB1
104
STB2
105
STB3
106
XRESET
107
VDD3.3V
108
VSS
109
VSS
110
VDD3.3V
111
XDRESET
112
VDD5.0V
113
VSS
114
XRESETI
115
XWDERR
116
THDAT
117
THCLK
118
THLAT
119
STBNP
120
RM0/IOP00
121
RM1/IOP01
122
RM2/IOP02
123
RM3/IOP03
124
RXE/IP04
125
TM0/IOP10
126
VDD2.5V
127
VSS
128
TM1/IOP11
129
TM2/IOP12
130
TM3/IOP13
131
TXE/IP14
132
KSTART
133
KLATCH
134
KSCLK
135
KTXD
136
KRXD
137
FMEMCLK/IOP24
138
FMEMDI/IOP25
139
ADSEL1
140
VDDA2.5V
141
VREFB
142
VCL
143
VREFT
144
VSSA
Q21
IC17
1
VCC
2
DQ1
3
DQ2
4
DQ3
5
DQ4
6
NC
7
WE
8
RAS
9
A9R
10
A0
11
A1
12
A2
13
A3
14
VCC
15
VSS
16
A4
17
A5
18
A6
19
A7
20
A8
21
NC
22
OE
23
CAS
24
DQ5
25
DQ6
26
DQ7
27
DQ8
28
VSS
R176
0
K1000p
C163
K1000p
C171
K1000p
C156
K1000p
C168
J100p
C164
X4
R142
0
K0.01u
C412
RXE
XRAS
THCLK
XCAS
A[10]
KSTART
D[3]
BBRESET
A[1]
A[14]
A[15]
A[17]
RM2
A[14]
D[2]
A[13]
D[5]
A[16]
A[9]
A[6]
A[17]
A[16]
A[0]
A[5]
RM0
A[3]
XWR
A[18]
A[17]
D[1]
KTXD
RM1
D[4]
D[7]
A[15]
A[7]
XRD
XRD
A[6]
A[2]
A[11]
A[14]
A[8]
A[4]
F1
RM3
STB1
D[0]
KRXD
A[13]
KLATCH
A[7]
THLAT
CISON
A[16]
KSCLK
A[12]
STB2
A[5]
CISON
XWR
A[18]
COVEROPEN
S_ENB
PTOP
RESRV1
OPERST
XMDMINT
THDAT
D[1]
D[2]
D[3]
D[4]
D[5]
OPERST
XROMCS
MFCS
A[18]
A[15]
LEDON
FTG
XCAS
XRAS
D[6]
A[4]
XROMCS
XRD
A[1]
XWR
A[3]
A[2]
A[0]
D[7]
D[0]
D[6]
A[4]
A[5]
A[6]
A[7]
A[8]
A[9]
A[10]
A[11]
A[12]
A[13]
MOTOR_PS
FILM_CHECK
AIN1
XMDMCS
AIN1
MFCS
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
T-ON/OFF
KSCLK
T-PAT1
T-PAT0
KSTART
KLATCH
KRXD
KTXD
TO OPE-PANE
TO CIS I/F
4M FLASH
DRAM
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
KX-FC255CX-S : DIGITAL BOARD (3/4)
3/4
KRXD/KTXD
KSCLK
KLATCH
KSTART
....
....
....
CLK
....
SI
....
Summary of Contents for KX-FC255CX-S
Page 18: ...18 KX FC255CX S 6 4 2 Block Diagram ...
Page 20: ...20 KX FC255CX S ...
Page 56: ...56 KX FC255CX S 9 2 Cordless Handset Programming 9 2 1 Cordless Handset Features ...
Page 57: ...57 KX FC255CX S Note Refer to Program Mode Table P 98 ...
Page 65: ...65 KX FC255CX S 11 2 Handset ...
Page 68: ...68 KX FC255CX S 11 3 2 Service Mode Settings Note The above values are the default values ...
Page 76: ...76 KX FC255CX S Countermeasure ...
Page 77: ...77 KX FC255CX S REFERENCE Test Mode P 58 ...
Page 78: ...78 KX FC255CX S REFERENCE Test Mode P 58 ...
Page 79: ...79 KX FC255CX S REFERENCE Test Mode P 58 ...
Page 80: ...80 KX FC255CX S REFERENCE Test Mode P 58 ...
Page 81: ...81 KX FC255CX S ...
Page 82: ...82 KX FC255CX S REFERENCE Test Mode P 58 ...
Page 83: ...83 KX FC255CX S REFERENCE Test Mode P 58 ...
Page 87: ...87 KX FC255CX S ...
Page 112: ...112 KX FC255CX S ...
Page 119: ...119 KX FC255CX S I O and Pin No Diagram ...
Page 121: ...121 KX FC255CX S Other NG example while the power is ON and the LCD displays the following ...
Page 122: ...122 KX FC255CX S 12 5 5 2 NG Example ...
Page 126: ...126 KX FC255CX S 12 5 7 2 Troubleshooting Flow Chart ...
Page 132: ...132 KX FC255CX S 12 5 11 Thermal Head Section Note Refer to Thermal Head P 19 ...
Page 140: ...140 KX FC255CX S 13 Service Fixture Tools ...
Page 145: ...145 KX FC255CX S 14 3 Disassembly Procedure 14 3 1 How to Remove the Image Sensor CIS ...
Page 146: ...146 KX FC255CX S 14 3 2 How to Remove the Thermal Head ...
Page 147: ...147 KX FC255CX S ...
Page 148: ...148 KX FC255CX S 14 3 3 How to Remove the Bottom Frame ...
Page 149: ...149 KX FC255CX S 14 3 4 How to Remove the P C Boards and Speaker ...
Page 150: ...150 KX FC255CX S 14 3 5 How to Remove the Power Supply Board and AC Cord ...
Page 151: ...151 KX FC255CX S 14 3 6 How to Remove the Gear Block and Separation Roller ...
Page 152: ...152 KX FC255CX S 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Page 153: ...153 KX FC255CX S ...
Page 154: ...154 KX FC255CX S 14 3 8 How to Remove the Cradle and Hook Switch Board ...
Page 155: ...155 KX FC255CX S 14 3 9 How to Remove the Back Cover ...
Page 156: ...156 KX FC255CX S 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Page 157: ...157 KX FC255CX S ...
Page 158: ...158 KX FC255CX S 14 3 11 How to Remove the Pickup Roller and Antenna ...
Page 159: ...159 KX FC255CX S 14 3 12 How to Remove the Operation Panel ...
Page 160: ...160 KX FC255CX S 14 3 13 How to Remove the Operation Board MIC Board and LCD ...
Page 161: ...161 KX FC255CX S 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Page 162: ...162 KX FC255CX S 14 3 15 Installation Position of the Lead Wires 14 3 15 1 Lower Section ...
Page 163: ...163 KX FC255CX S ...
Page 164: ...164 KX FC255CX S ...
Page 165: ...165 KX FC255CX S ...
Page 166: ...166 KX FC255CX S 14 3 15 2 Operation Panel Section ...
Page 167: ...167 KX FC255CX S 14 3 15 3 Back Cover Section ...
Page 168: ...168 KX FC255CX S 14 3 16 How to Remove the Cordless Handset Board ...
Page 169: ...169 KX FC255CX S 14 3 16 1 Fix the LCD to the Cordless Handset Board ...
Page 170: ...170 KX FC255CX S 14 3 17 How to Remove the Charger Board ...
Page 199: ...199 KX FC255CX S 17 1 6 Cordless Handset Board ...
Page 202: ...202 KX FC255CX S 17 3 Test Chart 17 3 1 ITU T No 1 Test Chart ...
Page 203: ...203 KX FC255CX S 17 3 2 ITU T No 2 Test Chart ...
Page 204: ...204 KX FC255CX S 17 3 3 Test Chart ...
Page 205: ...205 KX FC255CX S MEMO ...
Page 236: ...236 KX FC255CX S 21 1 2 Operation Panel Section ...
Page 237: ...237 KX FC255CX S 21 1 3 Upper Cabinet Section ...
Page 238: ...238 KX FC255CX S 21 1 4 Back Cover Section ...
Page 239: ...239 KX FC255CX S ...
Page 240: ...240 KX FC255CX S 21 1 5 Lower Cabinet Section ...
Page 241: ...241 KX FC255CX S 21 1 6 Gear Block Section ...
Page 242: ...242 KX FC255CX S ...
Page 244: ...244 KX FC255CX S 21 1 8 Charger Section ...
Page 245: ...245 KX FC255CX S 21 1 9 Screws ...