DOWNLOAD Panasonic KX-TG6481RUT / KX-TGA648RUT Service Manual ↓ Size: 2.43 MB | Pages: 87 in PDF or view online for FREE

Model
KX-TG6481RUT KX-TGA648RUT
Pages
87
Size
2.43 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DIGITAL CORDLESS ANSWERING SYSTEM
File
kx-tg6481rut-kx-tga648rut.pdf
Date
PREV: Panasonic KX-TG6481CAT / KX-TGA648RUT Service Manual

Panasonic KX-TG6481RUT / KX-TGA648RUT Service Manual ▷ View online

69
KX-TG6481RUT/KX-TGA648RUT
Memo
70
KX-TG6481RUT/KX-TGA648RUT
13.4. Schematic Diagram (Handset)
BATT+
BATT-
125m
0.1
R45
NC
C34
BATTERY
+1.8V
1.8V
GND
UTX
URX
GND
POWER
CHG(+)
CHG(-)
BAT
NC
R65
JTAG
1k
R66
5.6n
F1
100
R63
C36
NC
C45 K0.1u
C121
NC
NC
C35
NC
C15
+1.8V
3.3k
R22
GND
K1u
C47
C29
NC
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
C44
K0.1u
NC
R11
K2.2u
C48
C150
NC
GND
GND
1.2k
R7
100
R8
+1.8V
K0.1u
C40
D10p
C97
D10p
C96
K0.01u
C14
RF_RXp
ANT2
PON
PSEL
VDD_PADRV
TXp
TXn
TXON
RXON
ANT1
RF_RXn
CP2.5V
2.2k
R25
0
R215
Q2
Q4
NC
C41
BATTERY
K0.1u
C13
K0.1u
C11
3.3k
RA4
1
2
3
4
NC
R4
K1u
C50
K1u
C49
GND
820
R28
K1u
C51
CP+4.0V
CP4.0V
CP+2.5V
C10
NC
X_CLK
C3
K1u
1k
R234
1k
R233
1k
R235
1k
R238
1k
RA61
1
2
3
4
56k
R203
F
10k
R64
0
R15
GND
NC
C138
Q10
GND
BATTERY
NC
C7
GND
GND
1k
R29
1k
R23
C12
K10u
4.7u
C183
D10p
C184
C43
D10p
C46 D10p
C16
K10u
3.9k
R2
NC
C39
GND
Q9
C179
K0.47
16V
CN5
CAP2+
12
470
R51
CN5
SCL
4
10k
R54
CN5
V4
17
3.3k
R53
K1u
C176
C173
K1u
16v
3.3k
R50
CN5
CAP3+
9
CN5
VDD
6
CN5
V
OUT
8
CN5
RESET
2
C177
K0.47
16V
GND
K1u
C175
CN5
CAP2-
13
GND
CP+2.5V
C174
K1u
16v
CN5
V1
14
CN5
VSS
7
CN5
CAP1+
11
CN5
CS
1
GND
CN5
SD
A(SI)
5
CN5
V2
15
GND
CN5
V0
18
CN5
CAP1-
10
CN5
RS
3
GND
C178
K0.47
16V
CN5
V3
16
C180
K0.47
16V
16V
K0.47
C181
GND GND
GND
NC
R312
DO
WN
12
RIGHT
12
UP
12
SOFT_A
12
SOFT_C
12
INT
12
SOFT_B
12
LEFT
1
2
R.
12
LED12
CP+4.0V
NC
*R248
CP+2.5V
0
*R249
GND
Q7
GND
D1
J100p
C104
NC
C107
NC
C106
J100p
C103
J100p
C105
6.3
330u
C2
RE2
D7
C52
K10u
GND
K10u
C53
GND
D10p
C170
220
R52
10
R20
2.7p
C182
D10p
C171
K1u
C147
27k
R148
Q11
NC
NC
C332
+1.8V
BATTERY
GND
GND
820
R27
NC
C38
1k
R6
GND
Q12
NC
GND
NC
R330
NC
R331
NC
R332
NC
C333
6.3
220u
C1
RE2
+1.8V
BATTERY
2.2k
R340
NC
R342
47k
R341
6.3
22u
C340
Q13
Q14
1M
R343
220k
R344
GND
GND
GND
100k
R345
GND
C331
NC
LED1
NC
LED4
NC
NC
R300
NC
R303
D5
R76
NC
X1
10.368M
1
3
2
0
R181
CP+2.5V
NC
*R71
CP+4.0V
0
*R72
1k
R9
L4
NC
L5
NC
1
12
2
12
3
12
4
12
5
12
6
12
7
12
8
12
9
12
AST
1
2
0
12
SHARP
12
TALK
1
2
SP
12
CANCEL
1
2
S1
1
2
0.1u
C5
560
*R301
560
*R302
560
*R304
560
*R305
150
*R73
150
*R74
150
*R75
R47
R46
*LED7
*LED8
*LED9
*LED6
*LED5
*LED3
*LED2
1
VSS_LNA1
2
RF_RXp
21
CIDINp/VREFp
3
RF_RXn
4
VSS_LNA2
5
RFP1
6
RFP0
7
REF_RES
8
A
VS_XT
AL
22
RINGp/P3_7
23
RINGn/P3_6
24
RINGOUT/RINGING/P3_5
25
PARADET/P3_4
26
ADC0/P3_3
27
ADC1/INT0/P1_0
28
NTC/ADC2
41
CP_C2y
42
CP_V
O
UT1/LED1
43
CP_V
O
UT2/LED2
44
PON/P1_6
45
VDD1
46
P2_7/BXT
AL
81
GND
9
XT
AL2
10
XT
AL1
11
A
VD_XT
AL
12
RF_SUPPL
Y1
13
LDO_CTRL
14
AV
D
15
LSRn
16
LSRp
17
VREFm
18
MICh
19
CIDOUT/MICn
20
CIDINn/MICp
29
SOCp
30
SOCn
31
CHARGE_CTRL
32
P1_7/CHARGE
33
PAOUTp/P3_1
34
VDDPA
35
PAOUTn/P3_0
36
VBAT1
37
CP_C1x
38
CP_C2x
39
CP_C1y
40
VBAT2
47
P1_5/INT5/RDI/VDDE
48
P1_4/INT4/TDOD
49
P1_3/INT3/SIO
50
P1_2/INT2/SK
51
P1_1/INT1/LE
52
P2_6/WTF_IN
53
P0_7/SPI_DI
54
P0_6/SPI_DO
55
P0_5/SPI_CLK
56
P0_4/SPI_EN
57
P0_3/SCL2
58
P0_2/SD
A2
59
P0_1/URX
60
P0_0/UTX
61
RSTn
62
JTAG
63
P2_5/PCM_FSC/SF
64
P2_4/SCL1/PCM_DO/DP3
65
P2_3/SDA1/PCM_DI/DP2
66
P2_2/PCM_CLK/CLK100
67
P2_1/ECZ2/PWM1/LED4
68
P2_0/ECZ1/PWM0/LED3
69
VDD2
70
LDORF_CTRL
71
RF_SUPPLY2
72
RFP0n
73
RFP4
76
VSS_PADR1
79
VSS_PADR2
77
RF_TXp
80
RFP2
75
VDD_PADR
78
RF_TXn
74
RFP3
L8 NC
SOCn
CHARGE_CTRL
SOCp
CHARGE
LCD_CSB
LCD_RESET
KEY_LED
LCD_BACKLIT
RO
W
3
RO
W
2
RO
W
1
ROW0
LDO_CTRL
CHARGE
CHARGE_CTRL
URX
UTX
BELL_LED
LCD_BA
CKLIT
BELL_LED
COL0
COL1
COL2
COL3
COL4
LCD_CSB
LCD_CD
COL0
COL1
COL4
COL5
COL3
COL2
RO
W
1
RO
W
2
RO
W
3
JTAG
LDO_CTRL
SOCn
LCD_SDA
LCD_SCL
LCD_RESET
KEY_LED
LCD_CD
LCD_SCL
LCD_SD
A
RO
W
0
SOCp
COL5
CHARGE
TERMINAL
BATTERY
(MAX500mA)
TO RF BLOCK
LCD BACKLIT
(Amber/Blue)
BELL LED
To PA
to LCD UNIT (Mono Graphic 14FullD)
HEATSEAL
[RU]
[EX]
KEY BACKLIT 
(Amber/Blue)
[RU]
[EX]
Key Backlight LED 
Key Backlight  R
LCD Backlight LED 
LCD Backlight 
R
 
NC: No Components
*IC1
(1)
(2)
(3)
(4)
(6)
(5)
(8)
(9)
(10)
(11)
(12)
(13)
(7)
Charge Current
0.75V
0V
250mVp-p
TX _RF
RX _RF
71
KX-TG6481RUT/KX-TGA648RUT
CN4
Headset Jack
1
4
2
3
5
100k
R32
MIC-
MIC+
K10p
C71
D10p
C83
K10p
C72
K10p
C73
NC
C113
NC
C128
C108
NC
C82
K470p
K100n
C172
L72
10k
R40
BATTERY
GND
GND
GND
GND
NC
R206
NC
R207
NC
C111
NC
C109
10k
R42
D3
NC
2
1
D4
NC
2
1
D19
NC
D20
NC
NC
C75
NC
C74
VREFm
VREFm1
GND
GND
GND
GND
VREFm
GND
64K
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
CP+2.5V
NC
C76
NC
C77
100k
R34
100
R306
VREFm1
C86
D10u
D21
D22
10
L74
K1n
C127
GND
VREFm1
VREFm
GND
GND
NC
R309
NC
R310
L9
VREFm1
VREFm1
VREFm1 VREFm1
K1n
C152
GND
D14
D13
K1u
C188
GND
MIC
1
2
K100n
C33
K10p
C70
GND
GND
GND GND GND GND
GND
GND
GND
GND
GND
GND
GND GND
GND
GND
NC
R307
R308
0
L71
K1n
C185
K1n
C110
L10 33
L11 33
C-Check1
C-Check2
SPEAKER+
SPEAKER-
RECEVER+
RECEVER-
4.7k
R41
220
R806
TXn
RF_RXp
1k
R803
10p
C812
10p
C827
GND
1
PSET
2
VCCS
3
PI
4
PIX
7
PSEL
8
POX
9
PO
10
VCC
11
GND
5
PRAMP
6
PAON
1k
R804
GND
220
R807
100n
C808
PSEL
TP_ANT1
3.3p
C805
3p
C861
2p
C802
47
R805
GND
3.6n
L803
10p
C863
3.3n
C814
GND
GND
3.6n
L802
PON
GND
NC
R808
BATTERY
10p
C819
RF_RXn
0.5p
C834
GND
TXp
10p
C860
GND
GND
GND
GND
GND
GND
GND
1.5p
C803
10p
C864
10p
C825
10p
C809
GND
2p
C826
GND
1.6p
C813
GND
2p
C804
DA801
1
2
3
TXON
0.7p
C820
100
R802
GND
3.3p
C806
NC
C837
VDD_PADRV
RXON
GND
10p
C811
1.6p
C810
GND
GND
27n
L801
GND
10p
C822
RF-SHIELD
1
2
3
4
5
6
GND
680
R801
VREFm
MICh
LSRp
LSRp
LSRn
MICp
MICn
HEADSET_DET
W 0.15mm
L 5.0mm
1st layer
W 0.15mm
L 20+/-2mm
3rd layer
Balun
W 0.15mm
L 20+/-2mm
3rd layer
Pre-matching
W 0.15mm
L 5.0mm
1st layer
W 0.15mm
L 20+/-1mm
3rd layer
BPF
W 0.15mm
L 4.0mm x2
1st layer
W 0.125mm
L 7.6mm
Gap 0.125mm
1st layer
IC3
IC801
(1)
(2)
(3)
(4)
(6)
(5)
(8)
(9)
(10)
(11)
(12)
(13)
(7)
KX-TGA648 SCHEMATIC DIAGRAM (Handset_Main)
NC: No Components
RX_RF
TX_RF
TX _AF
RX-AF (Handset)
Sp-phone RX/Beep
72
KX-TG6481RUT/KX-TGA648RUT
13.5. Schematic Diagram (Charger Unit)
J1
2
1
TP3
G
TP2
TP1
TP4
R1
12 (2W)
NC
A
K
F1
SCHEMATIC DIAGRAM (Charger Unit)
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