Panasonic KX-TG2238CS User manual

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Service Manual
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ORDERNO.KM40304070C1
F1
TelephoneEquipment
lKX-TG2238CS
2.4GHzDigital Cordless Phone
SilverVersion
(forCanada)
©2003 Panasonic CommunicationsCo., Ltd.All rightsreserved. Unauthorizedcopying and distribution isaviolation of law.

OUT PUT -7dBm
(Vo1.Max)
Mic Input
1.1kHz, -50dBm/600Ω
IC201
1 LINE_SZ 2RLY 3
CHRAGE_CTL
4 SEG3 5 SEG4 6 SEG5 7 SEG6 8 SEG7 9 SEG8
10 SEG9 11 SEG10 12 SEG11 13 SEG12 14 VCC 15 GND 16 COM2 17 COM1 18 STB5 19 STB4 20 STB3 21 STB2 22 STB1 23 SIODO 24 SIOALE 25 SIOCLK 26 ANS_LED 27 BELL 28 GND 29 SPP 30 GNDPA
31SPN 32VCCPA 33NC 34LOUT0 35DCIN0 36LIN0 37LGS0 38CIDO0 39CIDIN0 40CIDIP0 41VCCA 42DCIN1 43GNDA 44NC 45VREF 46MIN 47MIP 48DCIN2 49GNDPLL 50VCCPLL
51
XOUT
52XIN 53GND 54RSTN 55PDN 56
RST 57VMOD 58RXGAIN 59SI 60SO 61
CS 62RSTN 63RXEN 64TXEN 65SHCTRL 66RXI 67UART_RX 68UART_TX 69INUSE/CHARGE_LED 70SP_LED 71NC 72GND 73VCC 74CHARGE_DET 75TCK 76TMS 77TDI 78TDO 79
79: IN_USE_LED/MESSAGE_LED/V_M_LED
80
80: DGPIO15
81 DGPIO14
82 KIN6
83 KIN5
84 KIN4
85 KIN3
86 KIN2
87 KIN1
88 DGPIO7
89 DGPIO6
90 DGPIO5
91 DGPIO4
92 DGPIO3
93 DGPIO2
94 DA
95 FLASHWP
96 GND
97 VCC
98
EEPROMWP
99 ECLK
100
100:USE_CNT
1K
R213
1K
R214
K0.01
C236
K0.01
C235
LGS
C234
Z0.01
C237
16V10u
SP
1KR212
SPP1
MICM
Z0.1
C231
Z0.1
C207
Z0.1
C200
Z0.1C213
8.192M
X200
C227
C5P
C228
C5P
TDO TDI TMS TCK
URX1
UTX1
100
R200
100
R201
C201
K680P
C401 Z0.01
ANT2 ANTG1
Z0.1
C309
SI SO CS
IC202
NC
1A0
2A1
3A2
4VSS 5
SDA
6
SCL
7
WP
8
VCC
NC
C225
DAWP
GND
VCC
EWPCLK
RSTN1
PDN
0
R230
0
R231 0 R232
0R234
NCD200 NCD201
NCR243
NC
NC
R240
NCR242
NC
R211 NC
R210
R225
NC
C221
1K
R251
1K
R252
Z0.1C251
Z0.1C252
C450
6.3V100u
100P
C406
100P
C410
100P
C411
100P
C412
3.3K
R400
C453 3P
100P
C300 100P C301 100P C302 100P C303 100P C304 100P C305
C261
3P
R261
470
R263
100
Q260
R262
100K
R260
470
C262 K0.1
C263
K0.1
C260 Z0.1
33P
C405
100P
C404
R264
1.8K
R209
ANT1 ANTG2
UTX2 URX2
SPM1
MICP
10P
C416
4.7K
RA201
1
3
5
78
6
4
2
470PC430
1KR433
C232
100P
C233
100P
C214 100P C215 100P C216 100P C217 100P C218 100P C219 100P C220 100P
C420
100P
C421
100P
SPM2 SPP2
K0.082
C723
1.2K
R216
C413
NC
L203 0
L204 0
CN100
1
VCC
2
NUSELED
3
SPLED
4
VMLED
5
ANSLED
6
KIN1
7
KIN2
8
KIN3
9
KIN4
10
KIN5
11
KIN6
12
STB5
13
STB4
14
STB3
15
STB2
16
STB1
17
COM1
18
COM2
19
SEG3
20
SEG4
21
SEG5
22
SEG6
23
SEG7
24
SEG8
25
SEG9
26
SEG10
27
SEG11
28
SEG12
29
VCC
30
GND
4.7KR202
TAMCDL
IC300
16M
1
RDY
2
RESET
3
WP
4
NC
5
NC
6
VCC
7
GND
8
NC
9
NC
10
NC
11
CS
12
BCLK
13
SI
14
SO
15 NC
16 NC
17 NC
18 NC
19 NC
20 NC
21 NC
22 NC
23 NC
24 NC
25 NC
26 NC
27 NC
28 NC
IO14
S501
LOCATOR
NC
43
390R205 820R206 68R207
64
R204
1KR235
NCR241
RST
SYN_DATA
SYN_EN
SYN_CLK
TXMOD
RXGAIN
RXEN
TXEN
SHCTRL
RX_DATA
RSTN
RSSI
Vpow
OSC
12
C823
10uF
10p
C803
330
R805
NC
C812
220p
C865
2p
C867 2p
C861
4.7R804
NC
C868
0.1uF
C820
FL801
3
1
42
1p
C804
IC801
1TX
2GND_RF
3RX
4VCC_RF
5VCC_BIAS
6REXT
7TESTP
8TESTN
9 VCC_IF
10 XOUT 11 XIN 12 VREG 13 VDD 14 RSSI 15 RSTN 16 RX_DATA
17SHCNTL
18VCC_DIG
19VCC_PLL1B
20VCC_PLL1A
21TXEN
22RXEN
23VCC_PLL2B
24VCC_PLL2A
25RXGAIN 26BCLK 27TXMOD 28SYN_CLK 29SYN_EN 30SYN_DATA 31VDD_PA 32VCC_PA
1p
C802
1uF(1608)
C830
1000p
C827
D801
2p
C858
1000p
C829
10p
C813 2.2nH
L805
NC
C832
0.1uFC817
10R802
1uF(1608)
C831
10p
C862
10p
C807
2p
C859
10nH
L801
TESTN
10p
C805
10R801
TP_FREQ
C809
NC
1uH(1608)
L807
2p
C869
1000pC828
10nH
L804
680pC825
2p
C856
390p
C819
0.01uF
C866
C833 10uF
10p
C860
10R803
1000p
C824
0.1uF
C818
10p
C811
2p
C857
10pC815
1000pC801
10nHL806
10k(1%)
R810
(1608)
TESTP
1000p
C821
D802
2.7nH
L803
1p
C822
10p
C863
NC
C806
NC
C864
NC
C826
10pC816
0
R300
LED201
NC
LED203
NC
NCC835
NC
R233
NC
C306 NC C307
4.7K
R203
3.9nH
L802
1.5p
C814
FCLKFSIFSO FCS
FVCC FGND
FRST FWP
NC
L808
NC
R811
NC
R812
NC
R813
180
R236
180
R238 180 R237
0
R245
C408
NC
C407
NC
C409
NC
10pR806
NCR808 NCR807
C230
10
VMOD
RXEN
TXEN
SHCTRL
RXDATA
SO
SI
ECLK
CS
FWP
RST
DA
RSTN
KIN2
KIN3
KIN4
KIN5
STB1
STB2 STB3
STB4
STB5 COM1 COM2
SEG11 SEG8 SEG7 SEG6 SEG5 SEG3
COM2 COM1
STB5 STB4 STB3 STB2 STB1
RSSI
KIN6
KIN1
VMOD
SO
EWP
KIN1
STB1
INUSELED
SEG9 SEG10
SEG11
SEG10
SEG9 SEG8 SEG7 SEG6 SEG5 SEG3
COM2 COM1
STB1 STB2 STB3 STB4
STB5
KIN6 KIN5 KIN4 KIN3 KIN2 KIN1
ECLK
RXDATA
RXEN
RXGAIN
RSSI
RSTN
SHCTRL
ECLK EWP
DA
EWP
DA
FWP
FWP
SI
SO
RST
RXGAIN
SEG4
SEG12
SEG4 SEG12
SI
ECLK
CS
RST
TXEN
TXEN
DATA
LE
CLK
DATA CLK LE
ANSLED
SPLED
INUSELED
INUSELED
VMLED
VMLED
SPLED
VMLED
ANSLED
CS
MIC
(1)
(8)
(12)
(7)
(6)
(5)
(4)
(3)
(2)
(13)
(14)
(15)
(22)
(21)
~
(16)
(20)
~

KX-TG2238CS: SCHEMATIC DIAGRAM (BASE UNIT) Main
3.3V
Charge
Circuit
3.3V
3.3V Reset
Circuit
3.6V
3.6V
6-8V
3.3V Bell Detect Circuit
Call ID Data
Output
Line input
1.1kHz,
-25dBm/600Ω
CN1
1LA
2LB
39V
4 GND
33uH
L1
33uH
L2 22
POS1
SA1
D4
4
32
1
680pC18
680pC19
10MR23
Q4
13
2
100K
R20
10K
R21
10K
R18
Q3 1.0MR24
C14 K0.01
47KR13
C9 Z0.01
R12
Q2
C7
R9
Q1
R57
0
C60
1K
R55
K0.1
C58
C53
R11
K680P/50VC11
K680P/50VC12
100K
R30
100K
R31
K0.15
C16
K0.15
C17
Q6
D3
K0.68
C15
4.7K
R26
NC
R28
IC331
3.6V 21
34
C110 Z0.1
Z0.1C106
27K
R112
330KR109
D101
6.3V330u
C103
Q151
R160
56K
10K
R159
C151 220(1/2W)
R157
15
R153
Z0.1C150
330R151
R150 100K
6.3V100uC101
390KR14
390KR15
390KR224
R222
33K
C244
K0.1
C242
K2700P
R223
2.2K
R221
Z0.1C100
D202
6.3V220u
C239
Z0.01
C238
R17 47K
L200
SA2
22VD152 22VD153
CHGP
CHGM
DCM
R218 12K
R219
10K Z0.1
C241
C54
R217 390K
R110
R227 2.2K
D204
D108C115 D109R113
LA
LB
390K
R52
NC
C51
NCC52
NC
C56
NCC10
NC
C243
NC
C499
C113
R8 0
1K
R10
R220
100
R51
47
Q50
R70
3.9K
NC
R16
Q150
1
3
2
120PC245
D150
C705
6.3V220u
C415
C250 K0.047
NC
L202
Z0.1
C402
3.3uL3
DCP
390
R152
NC
C246
C20
C13
1000P
VCC1
1.2KR215
20V
D2
12
NCR22
CN101
1VCC 2
GND
3STB1 4STB2 5STB3 6STB4 7STB5 8KIN6 9KIN5
10KIN4
11KIN3
12KIN2 13KIN1 14VCC 15ANSLED 16VMLED 17SPLED 18INUSELED
R105
100K
10MR25
R27
3.3M
R29
C21 K0.01
NC
D105
D205
NC
D203
IC100
3.6V
2
3
41
IC101
3.3V
2
3
41
16V100u
C114
12
R154 12 R155 12 R156
NC
R101
D103
D102
C107 NC
TP_LCT
D5
12
0
R108
IC332 2.7V
5
IN
4
OUT
3NC
2GND
1DS
C8
50V1u
39K
R7
K0.01C6
C4 100P
C5
NCR6
33(1/2W)
R5
2.0V
D1
C55
1000P
680R2
1.2KR1
K0.047
C3
16V10u
C1
R3
47
6.8u
L151
6.8u
L150
16V100u
C112
NCD107
0R19
R114
NC
NCQ108
13
2
NC
C249
C111 K0.1
27K
R161
KIN1 KIN2 KIN3 KIN4 KIN5 KIN6
STB5 STB4 STB3 STB2
STB1
ANSLED
SPLED
INUSELED
VMLED
(1)
(8)
(12)
(7)
(6)
(5)
(4)
(3)
(2)
(13)
(14)
(15)
~
(22)
(21)
(16)
(20)
~

KX-TG2238CS SCHEMATIC DIAGRAM (BASE UNIT) Operation
RINGEROFF FULL
PAGER
NCLCD900
1
234567
8 9 10 11 12
LED903 NC
ANS_LED
9
9
MEMO
MEMO
SP
SP
REC
REC
ERS
ERS
CHK
CHK
#
B
1
1
FLS
FLS
5
5
8
8
REP
REP
*
A
3
3
4
4
ICOM
ICOM
6
6
HLD
HLD
DOWN
DOWN
SKIP
SKIP
7
7
RDL
RDL
0
0
2
2
MSG1
MSG1
UP
UP
MUTE
MUTE
CN901
NC
1
GND
2
VCC
3
SEG12
4
SEG11
5
SEG10
6
SEG9
7
SEG8
8
SEG7
9
SEG6
10
SEG5
11
SEG4
12
SEG3
13
COM2
14
COM1
15
STB1
16
STB2
17
STB3
18
STB4
19
STB5
20
KIN6
21
KIN5
22
KIN4
23
KIN3
24
KIN2
25
KIN1
26
ANS_LED
27
VM_LED
28
SP_LED
29
INUSE_LED
30
VCC
CN900
1
GND
2
INUSE_LED
3
SP_LED
4
VM_LED
5
ANS_LED
6
KIN1
7
KIN2
8
KIN3
9
KIN4
10
KIN5
11
KIN6
12STB5 13
STB4
14
STB3
15
STB2
16
STB1
17
GND
18
VCC
STOP
STOP
ANS
ANS
MSG2
MSG2
MIC
MICM
MICP
NC
C902
LED904
CIQ_LED
C900 NC C901 NC
R903 NC R902 NC R901 NC R900 NC
LED900
INUSE_LED
LED901
SP_LED
LED902
VM_LED
R904680 R905 0

5
KEY5
SP_PHONE
SP_PHONE
KEY
*
6
KEY6
1
KEY1
3
KEY3
4
KEY4
MENU
MENU
KEYSYA
#
KEY0
0 2
KEY2
100
R201
LED201
KEY9
9
KEY7
7
100
R203
Q201
LED203 100
R202
LED204 100
R204
LED202 LED205
82
R207
LED207
82
R205
LED206
Q202
82
R206
0.1
C203
1K
R209
IC202
1
CS
2
SO
3
WP
4
VSS
5SI 6SCK 7HOLD 8VCC
KEY8
8
K0.1C207 K0.1C210 K0.1C206 K0.1C209
K0.47C212
430K(1%)
R217
K0.47C215 K0.47C211
K0.1C208
820K(1%)
R218
MUTE
MUTE
RDL
RDL
TALK
TALK
FLASH
FLASH
UP
UP
LEFT
LEFT
RIGHT
RIGHT
OFF
OFF
CN201
1
RESETB
2
VSS
3CAP1+ 4
CAP1-
5
CAP2+
6CAP2- 7
VOUT
8VR 9V0
10V1 11V2 12V3 13V4 14VDD 15DB4 16DB5 17DB6 18DB7 19CSB 20E_RD 21RW_WR 22RS
DOWN
DOWN
ANT
CS
C291
0.1
10K
R210
C279
NC
ANTG
NC
C868 C2P
C858
C2P
C869 C2P
C861 C2P
C859
NC
C864
C2P
C867 D10P
C863
K0.01
C866 J220P
C865 D10P
C862 C2P
C857
C2P
C856
R240 0
SI SCK
SO WP
MA27P0700L
D801
D10PC816
K1000PC828
C823
6.3V10
D10P
C803
K1000P
C829
TESTN
10K(1%)
R810
(1608)
NCC806
0.1
C820
1.0
C830
C833 6.3V10
K1000P
C824
K390P
C819
D10P
C860
D10PR806
K1000P
C821
FL801
3
1
42
2.2nHL805
K1000PC827
D10P
C811
D802
D10P
C813
10R802
330
R805
NC
C826
C1P
C822
10nH
L801
NCC832
0.1
C818
1.0C831
D10P
C815
0.1C817
10nHL806
D10PC807
K1000P
C801 TP_FREQ
10nH
L804
K680PC825
1uH
L807
(1608)
C1PC802
IC801
1TX
2GND_RF
3RX
4VCC_RF
5VCC_BIAS
6REXT
7TESTP
8TESTN
9VCC_IF
10 XOUT 11 XIN 12 VREG 13 VDD 14 RSSI 15 RSTN 16 RX_DATA
17SHCNTL
18VCC_DIG
19VCC_PLL1B
20VCC_PLL1A
21TXEN
22RXEN
23VCC_PLL2B
24VCC_PLL2A
25RXGAIN 26BCLK 27
TXMOD
28
SYN_CLK
29
SYN_EN
30
SYN_DATA
31VDD_PA 32VCC_PA
2.7nH
L803
4.7R804
TESTP
10R803
D10P
C805
C809
NC
C1P
C804
10R801
NC
C812
SYN_DATA
SYN_EN
SYN_CLK
TXMOD
RXGAIN
RXEN
TXEN
SHCTRL
RX_DATA
RSTN
RSSI
Vpow
OSC
NCC835
1.5P
C814
D10P
L201
3.9nH
L802
TEST
NC
L808
NC
R811
NC
R812
NC
R813
R808
NC
R807
NC
KEYIN_1
KEYIN_3
KEYIN_4
KEYIN_5
KEYIN_2
LIGHTED KEY
RF_UNIT
LCD
LCD_Back-Light VBAT
*
(1)
(2)
(9)
(14)
(23)
(42)
(3)
(8)
~
(10)
(13)
~
(15)
(22)
~
(24)
(28)
~
(29)
(41)
~

SPP
SPM
MICP
VBAT
VSS
CHG2
CHG1
220KR228
Q205
100
R222
47K
R244
K0.22
C255
0.1
C221
K0.033
C232
K0.22C231
2.2K
R253
10K
R232
10K
R224
Q206
0.1C218
L203
NCC247
NCC241
0.1
C224
100R212
100R213
RX
TX
2.2M(1%)
R234
MICM
0.1
C228
K0.033
C230
39K
R246
Q207
39K
R248
10K
R245
BATTLOW
1.0
C233
NCC256
C205
J100P
R247
1.8K
C267
6.3V22
8.192M
X201
NC
R219
NC
C259
C274 0.1
C214 0.1
NC
C295
R270
100K
1.0
C217
TDO
TDI
TMS
TCK
NC
D213
NC
D212
NC
R273
NCR239
NC
R275
0
R233
NC
C287
R231
1K
R229
1K
R230 1K
10K
R265
D214 D216
MIC
L209
47
R302
47
R303
NC
C269
C294 0.1
NCC300
C304
0.1
100-13/AGPIO_0-AGPIO_13
16-27/EGPIO_4-EGPIO_15
56/BGPIO_0/CE0
59-61/BGPIO_3-BGPIO_5
67-70/BGOIO_11-BGPIO_14
74/CGPIO_0, 79/CGPIO_10
98-99/CGPIO_12-CGPIO_13
80-95/DGPIO15-DGPIO_0
IC201
1NC 2NC 3 UART_RX 4 UART_TX 5NC 6 KEYSTROBE_F 7 KEYSTROBE_E 8 KEYSTROBE_D 9 KEYSTROBE_C
10 KEYSTROBE_B 11 KEYSTROBE_A 12 NC 13 HEADSET_DET 14 VCC 15 GND 16 DOT_DB4 17 DOT_DB5 18 DOT_DB6 19 DOT_DB7 20 DOT_E/RD 21 DOT_RW/WR 22 DOT_RS 23 SIODO_RF 24 SIOLE_RF 25 SIOCLK_RF 26 SIDOI 27 DOT_RESET 28 GND 29 SPOUTP 30
GNDPA
31SPOUTN 32VCCPA 33HSSPOUT 34LOUT0 35DCIN0 36LIN0 37NC 38NC 39NC 40NC 41VCCA 42DC/DC_MONITOR 43GNDA 44HSMIP 45VREF 46MIN 47MIP 48RSSI 49GNDPLL 50VCCPLL
51XOUT 52XIN 53GND 54RSTN 55PDN 56MIC_POW_SW 57TXO 58RXGAIN 59EEP_DI 60EEP_DO 61NC 62RSTH 63RXEN 64TXEN 65SHCTRL 66RXI 67NC 68NC 69DC/DC_PWM 70NC 71RADIOEN 72GND 73VCC 74CHARGE_DET 75TCK 76TMS 77TDI 78TDO 79
CHG_LED 80NC
81 NC
82 KEYIN_5
83 KEYIN_4
84 KEYIN_3
85 KEYIN_2
86 KEYIN_1
87 NC
88 EEP_CS
89 NC
90 NC
91 NC
92 KEY_BACKLIGHT
93 LCD_BACKLIGHT
94 LCD_POWER_SW
95 EEP_WP
96 GND
97 VCC
98 NC
99 EEP_CLK
100
NC
2.2M(1%)
R235 NC
NC
GND
VIN
VOUT
NC
D202
6.3V22
C257
C308
C3P
Q204
R278
100K
R279
100 R276
470
R277
470
C306
0.1 C307
K0.1
IC204
3.0V
1
CONT
2
GND
3
NOISE
4Vout 5Vin
K0.01
C243
0.1
C244
R306
100K
C309 K0.1
R280
1.8K
100K
R281
TPP
TPM
R242
C298
J100P
C299
J100P
R243
RA201
100K
1
3
5
78
6
4
2
C310
NC
R249
1.2K
1.2K
R250
K0.082
C277
L210
22uH
Q212 G
S
D
D217
C318
6.3V330
R325
1.8M(1%)
R326
1M(1%)
NC
R200
NC
C270
560
R216
LED210 LED211
150
R215
NCD201
NCR238
CN203
1GND
2MIC1
3MIC2
4SP2
5SP1
BATT1BATT2
C213 6.3V330
NCC260
C223
6.3V10
C220 6.3V100
BT
NC
R274
IC203
3.0V
1OUT
3
GND
2
IN
R223
1K
R237
100K
NC
C234
NC
R236
NC
D204
NC
R225
NC
C317
L205
L206
L207
L208
IC205
2.6V
2 IN 1 OUT
3
NC
4
GND
D206D205
D208 D207
C293 J220P
NC
C238
NC
L204
NC
C225
NC
C296
NC
C222
C280 NC
C227
NC
NCC285
D211
NC
NC
C239
R226
NC
C236 C4P
C237 C4P
NC
C292
C229
0.1
NC
C242
C226
0.1
L211
NC
L212
NC
C303
10
KEYIN_5
KEYIN_4
KEYIN_3
KEYIN_2
KEYIN_1
HANDSET SP
+
+
-
+
CHARGE2
CHARGE1
POWERDOWN
RESET
HEADSET-DET
VCC
VRF
HEADSET-JACK
SP-phone
(1)
(2)
(9)
(14)
(23)
(42)
(3)
(8)
~
(10)
(13)
~
(15)
(22)
~
(24)
(28)
~
(29)
(41)
~
3.0V
3.6V
MIC INPUT
1.1KHz, -45dBm/600Ω
HEADSET Output
-17dBm (Vol. Mid)
HEADSET MIC Input
1.1kHz, -45dBm/600Ω
Output
-17dBm
(Vol. Mid)
Output
-9dBm
(Vol. Max)
KX-TG2238CS: SCHEMATIC DIAGRAM (HANDSET)
C1 1.0
1
2 3
5 4
6.3V 10
C2 2.6V
IC1
Small PCB