216
KX-FC255CX-S
18.10. Cordless Handset Board (PCB100)
1s
(When on charge)
Charge Current
Back light OFF: 4.2V
Back light ON: 3.5V
TX DATA
RX DATA
115kHz
(Talk Mode)
1.8V
2.5V
0.7V
0V
25mVp-p
J1
J2
5.6n
F1
4.0V
330u
C1
47u
L1
D1
1 2
6.3V
330u
C2
100m
R45
5.6k
R46
K1u
C34
Q1
1
3
2
100m
R1
68
R2
Q3
1
3
2
Q2
1
3
2
BATTERY
+4.2V
VDD3
+2.5V
+1.8V
VDD2
VDD1
10u
L4
10u
L5
Q4
1
3
2
D7
1 2
Q9
1
3
2
10k
R6
Q5
2
3
1
D6
1 2
220k
R7
+2.5V
+1.8V
59
LDO1_CTRL
61
P16/PON/INT6
63
LDO1_sense
65
AVD2
67
LSRp/REF
69
VREFm
71
AGND
73
VREFp
4
VSS1
75
P14/*INT4
6
LED2/PWM1/P21
77
P22/CLK100
8
LED_BIAS/P36/PD6
79
ADC3
10
SCL1/P24
12
*INT2/P12
14
AVS
16
Xtal1
18
RFCLKp
20
VDDRF
22
TDO
24
SK
26
LE
28
P32/PD2
30
PAOUTm
32
PAOUTp
34
P33/PD3
36
TDOD/P35/PD5
38
VDDIO2
40
PCM_FSC/*INT0/P10
42
P01/URX
44
P03/SDA2
46
P05/SPICLK/PCM_CLK
48
P07/SPIDI/PCM_DIN
50
VDD3
52
P17/CHARGE/INT7
54
DC_STAB
56
DC_CTRL
58
VBAT1
60
LDO2_CTRL
62
P26/STOP_CHARGE
64
AVS2
66
*LSR/REF
68
*MIC
70
VBUF
72
MICp
1
*INT1/P11
3
VDD1
74
P30
5
LED1/PWM0/P20
76
P13/*INT3
7
LED3
78
AVS_sense
9
SDA1/P25
80
ADC0
11
*INT5/VDDE/P15
13
AVD
15
CAP
17
VSSRF
19
RSSI/RFCLKm
21
RFCLKd
2
VDDIO1
23
RDI
25
PD1/SIO
27
P31/PD1
29
VSSPA1
31
VDDPA
33
VSSPA2
35
P34/PD4
37
VSS2
39
VDD2
41
P00/UTX
43
P02/JTIO
45
P04/SCL2
47
P06/SPIDO/PCM_DOUT
49
VSS3
51
P23/ADC1
53
*RST
55
DC_I
57
DC_Sense
4.7
R12
X1
1
2
3
5.6M
R19
INT
1 2
CANCEL
1 2
SOFT_A
1 2
SOFT_C
1 2
R
1 2
UTX
URX
GND
C94
NC
1k
R66
10k
R64
+2.5V
+2.5V
10
R91
POWER
K1u
C39
TP20
TP21
BAT
UP
1 2
DOWN
1 2
RIGHT
1 2
LEFT
1 2
47
R71
R70 NC
K1u
C29
Q12
1
3
2
+4.2V
BATTERY
+1.8V
SOFT_B
1 2
SP
1 2
J15p
C7
C8
K0.22u
C9
NC
K0.1u
C25
K0.1u
C26
7
1 2
4
1 2
TALK
1 2
S1
1 2
LED1
LED-
J3
J4
D8p
C6
LED10
A
K
NC
C91
NC
C92
K0.1u
C19
K0.1u
C24
2
1
2
3
1
2
1
1 2
6
12
8
1
2
5
1
2
9
1
2
AST
1
2
0
1
2
SHARP
1
2
L6
NC
5.6k
R47
1k
R61
1k
R62
R63 NC
JTAG
VDD4
K0.1u
C30
K0.1u
C32
J100p
C35
1k
R8
470
R5
K0.01u
C38
39k
R11
K1000p
C18
K0.1u
C21
K0.1u
C20
100
R13
K0.1u
C22
10k
R65
C93
NC
1k
R73
LED4
1
2
LED5
1
2
LED6
1
2
LED7
1
2
LED8
1
2
LED9
1
2
NC
C31
NC
C33
NC
C36
CN3
2
CN3
12
CN3
1
CN3
3
CN3
13
CN3
4
CN3
14
CN3
5
CN3
15
CN3
6
CN3
16
CN3
7
CN3
17
CN3
8
CN3
9
CN3
18
CN3
10
CN3
19
CN3
11
CN3
20
3.3k
R15
1k
R16
C23
NC
D8
2
1
1n
C96
K0.1u
C84
0
L7
D9
NC
1
2
NC
D10
1
2
NC
D11
1
2
NC
D12
1
2
0.1u
C3
Q7
B
C
E
Q8
B
C
E
120
R92
1u
C15
D10p
C4
D2
1 2
2.2u
C5
2.2u
C10
1n
C114
1u
C27
NC
L14
NC
L13
+2.5V
10k
R108
100
R103
100
R95
100p
C107
100p
C106
100
R96
100
R104
100n
C28
100
R105
100p
C105
100
R97
100
R106
100
R98
100p
C104
100
R99
100
R107
100p
C103
1n
C97
DC_I
AVS_sense
ADC3
STOP_CHARGE
UTX
URX
JTAG
ROW0
COL5
COL4
COL3
COL2
COL1
LE
SIO
SK
RDI
TD0
ADC3
AVS_sense
LCD_RESET
ROW3
KEY_LED
STOP_CHARGE
CHARGE
DC_CTRL
DC_I
LDO2_CTRL
LDO1_CTRL
ROW2
LCD_CD
RINGER_LED
LCD_CSB
ROW1
COL0
COL0
COL1
COL2
COL3
UTX
URX
JTAG
RSSI
KEY_LED
ROW0
ROW1
ROW3
CHARGE
LCD_BACK
LCD_BACK
COL5
COL4
ROW2
DC_CTRL
RESET
LCD_SDA
LCD_SCL
RINGER_LED
HEADSET_DET
RFCLK
LDO1_CTRL
LDO2_CTRL
10k
R109
LCD_SDA
LCD_SCL
LCD_RESET
LCD_CSB
LCD_CD
IC1
BBIC
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
NC: No Components
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 ...