Panasonic KX-TG6521RUB / KX-TG6521RUT / KX-TG6522RUT / KX-TGA651RUB / KX-TGA651RUT / KX-TG6522RU1 Service Manual ▷ View online
65
KX-TG6521RUB/KX-TG6521RUT/KX-TG6522RUT/KX-TGA651RUB/KX-TGA651RUT
13 Schematic Diagram
13.1. For Schematic Diagram
13.1.1. Base Unit (Schematic Diagram (Base Unit))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. The schematic diagrams may be modified at any time with the development of new technology.
13.1.2. Handset (Schematic Diagram (Handset))
Notes:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagram may be modified at any time with the development of new technology.
2. The schematic diagram may be modified at any time with the development of new technology.
13.1.3. Charger Unit (Schematic Diagram (Charger Unit))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. The schematic diagram may be modified at any time with the development of new technology.
66
KX-TG6521RUB/KX-TG6521RUT/KX-TG6522RUT/KX-TGA651RUB/KX-TGA651RUT
13.2. Schematic Diagram (Base Unit)
IC801
*IC421
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(8)
(9)
NC: No Components
3.0V
2.5V
Beep
Bell Signal
Bell Signal
TX _RF
TX _RF
RX _RF
GND
SPm
SPp
GND
GND
GND
GND
+3.0V
100
R75
*R425
270k
UTX
URX
GND
ANT_1
ANT2
NC
C854
ANT1
GND
GND
ANT_2
GND
NC
C850
GND
GND
1k
R76
ANT1_TP
ANT2_TP
GND
GND
GND
1u
C616
GND
+3.0V
GND
AP1
*CN5
PARALLEL WIRE
.
GND
GND
+2.5_CP
1u
C625
CL1
CL2
GND
GND
100n
C808
GND
GND
GND
PON
1k
R804
RF_RXp
RF_RXn
GND
GND
GND
TXp
GND
220
R806
GND
TXn
GND
PSEL
3.3n
C814
VDD_PADRV
TXON
1k
R803
GND
1
PSET
2
VCCS
3
PI
4
PIX
7
PSEL
8
POX
9
PO
10
VCC
11
GND
5
PRAMP
6
PAON
GND
GND
GND
RXON
220
R807
GND
47
R805
GND
*C421
10n
GND
*R424
10k
GND
*Q421
VDD5
GND
*C422
100n
*R426
560
*R427
560
*R428
560
*R429
3.3k
GND
R135
10k
GND
10
R430
GND
GND
100p
C856
100p
C858
GND
GND
10
100n
C60
CKM
GND_C
Q24
GND
+1.8V
NC
C837
CN5-10
CN5-9
CN5-8
CN5-7
CN5-6
CN5-5
CN5-4
CN5-3
CN5-2
CN5-1
1.5p
C803
27n
L801
DA802
1
2
3
DA801
1
2
3
1.8p
C804
1.8p
C802
Shield
12
3
4
5
6
3n
L802
3n
L803
3.3p
C805
3.3p
C806
VDD4
C163
NC
GND
GND
JTAG
3p
C860
GND
GND
*R86 1.5
*R87 1.5
220
RA80
1
2
3
4
4
*C149
2.2n
*C150
2.2n
100p
C823
GND
*C501
NC
*SW1
NC
1
2
R808
NC
URX2
UTX2
GND2
GND
1
*CE
2
SO
3
*WP
4
VSS
5
SI
6
SCK
7
*HOLD
8
VDD
GND
NC
C423
1k
*RA501
1
2
3
4
5
6
7
8
6
7
8
1k
*R516
1k
*R511
C851
7p
C853
7p
GND
Q25
R801
22k
1.5k
R133
10p
C811
10p
C855
10p
C809
10p
C819
10p
C812
10p
C827
10p
C825
10p
C857
*C516
10p
*C515
10p
*C513
10p
*C514
10p
*C511
10p
*C512
10p
C517
NC
C519
NC
C518
NC
NC
C520
10p
C631
*C146
10p
C859
10p
10p
NC
C521
NC
C861
NC
C522
10p
C630
*C145
10p
2.2p
C810
2.2p
C813
*R132
680
120
*R802
1p
*C834
1.1p
*C826
NC
L804
GND
NC
C862
0.5p
C820
3p
C822
SDA2
SCL2
TAM_CSn
SPI_CLK
TAM_WP
KEY0
KEY1
ROW1
ROW2
KEY2
CHARGE
TAM_WP
SPI_DI
SPI_DO
SPI_DO
SPI_DO
TAM_CSn
SPI_DI
SPI_CLK
Low_Rad
ROW0
ROW0
ROW0
TAM_WP
ROW2
KEY0
KEY1
ROW1
KEY2
LED1
LED2
eco_mode
for TG6511/2511/2521
TG7511/8511/5511
TG7511/8511/5511
CP_OUT1=3.0V
Pow_Adj
Pre-matching
Balun
BPF
W 0.15mm
L 22+/-4mm
1st or 4th layer
L 22+/-4mm
1st or 4th layer
W 0.15mm
L 22+/-4mm
1st or 4th layer
L 22+/-4mm
1st or 4th layer
W 0.15mm
L 22+/-4mm
1st or 4th layer
L 22+/-4mm
1st or 4th layer
W 0.15mm
L 5.0mm
1st layer
L 5.0mm
1st layer
W 0.15mm
L 5.0mm
1st layer
L 5.0mm
1st layer
W 0.15mm
L 20+/-2mm
3rd layer
L 20+/-2mm
3rd layer
W 0.15mm
L 20+/-2mm
3rd layer
L 20+/-2mm
3rd layer
W 0.15mm
L 20+/-1mm
3rd layer
L 20+/-1mm
3rd layer
W 0.125mm
L 7.6mm
Gap 0.125mm
1st layer
L 7.6mm
Gap 0.125mm
1st layer
W 0.15mm
L 4.0mm x2
1st layer
L 4.0mm x2
1st layer
67
KX-TG6521RUB/KX-TG6521RUT/KX-TG6522RUT/KX-TGA651RUB/KX-TGA651RUT
*IC401
GND
GND
Q8
1u
C614
GND
+1.8V
GND
GND
GND
GND
56k F
R615
GND
GND
GND
SA1
33u
L1
33u
L2
GND
J101
GND
GND
+6.5V
GND
GND
GND
10k
R16
GND
GND
GND
GND
NC
(3216)
R123
100k
R14
D3
4
1
3
2
GND GND
GND
*C16
NC
27k
R18
GND
NC
C17
GND
0.033u
*C28
100k
R27
NC
C15
GND
TP10
0
R116
8.2k
R19
100k
R23
+1.8V
GND
GND
GND
GND
GND
NC
C24
C57
NC
GND
GND
12
R21
GND
TP9
NC
C23
470k
R28
K0.1u
C56
NC
C141
GND
GND
1u
C22
NC
C155
1k
R33
1k
R35
GND
GND
10p
C136
GND
100k
R10
GND
+1.8V
GND
GND
100k
R8
100n
C72
100n
C61
GND
3.3k
R81
3.3k
R117
+1.8V
1n
C157
TP16
TP15
*C48
NC
*C156
NC
GND
GND
GND
GND
GND
100n
C51
GND
GND
GND
100n
C75
Q4
*D23
NC
+3.0V
2.2u
C84
NC
C306
1u
C305
GND
GND
1k
R130
10k
R129
3A
F1
10k
RA402
1
2
3
4
*D5
NC
A
K
D6
NC
AK
D9
NC
AK
1u
C615
Q9
+2.4V
+2.4V
GND
220
R106
220
R109
10k
R77
NC
R78
GND
NC
C167
VDD2
100n
C7
100n
C8
10p
C65
+2.5_CP
L2T
L1T
L1R
DCM
DCP
L2R
10p
C137
GND
100u
16
C32
50
10u
C27
GND
10.368M
X1
1
3
2
0
R29
ANT1
RF_RXn
RXON
TXON
TXn
TXp
VDD_PADRV
PSEL
PON
ANT2
RF_RXp
GND
10
330u
C36
10k
R657
GND
GND
GND
GND
Q5
680p
C9
500
680p
C10
500
1k
RA1
1
2
3
45
6
7
8
C622
NC
*D22
LINE_DC
*R126
NC
NC
NC
HAK_CL1
STM
VDD1
NC
C1
C617
1u
10
NC
C29
NC
C30
C37
NC
1M
R4
1M
R6
180k
R3
180k
R5
GND
*Q22
*R7
NC
*R9
NC
27
R22
*C25
0.047u
1u
C86
22uH
L3
GND
47
R91
DC_IN
0.1u
C87
0.01u
C88
120
R92
VDD3
NC
*D24
*Q23
Q10
D10
NC
C90
D27
NC
680
R95
4.7k
R93
1 ON/*OFF
2
VSS
4
EXT
5
VIN
3 VOUT
*C626
NC
NC
*C637
3.9k
R37
1u
*C624
0.1u
*C623
270
R40
10p
C169
10p
C170
*C147
10p
*C148 10p
10p
C168
10p
C74
NC
C70
10p
C171
*C49
470p
2.7k
0.25W
R15
*D15
NC
AK
*D16
NC
A
K
*R2
NC
NC
*C2
*Q3
*Q2
*R124
10
10k
*R13 680
*C12
*R12
NC
2.2k
*R17
NC
*C166
47k
*R24
*D26
NC
1
VSS_LNA1
2
RF_RXp
21
CIDINp/VREFp
3
RF_RXn
4
VSS_LNA2
5
RFP1
6
RFP0
7
REF_RES
8
AVS_XTAL
22
RINGp/P3_7
23
RINGn/P3_6
24
RINGOUT/RINGING/P3_5
25
P
ARADET/P3_4
26
ADC0/P3_3
27
ADC1/INT0/P1_0
28
NTC/ADC2
41
CP_C2y
42
CP_VOUT1/LED1
43
CP_VOUT2/LED2
44
PON/P1_6
45
VDD1
46
P2_7/BXTAL
81
GND
9
XTAL2
10
XTAL1
11
AVD_XTAL
12
RF_SUPPLY1
13
LDO_CTRL
14
AVD
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
P
A
OUTp/P3_1
34
VDDP
A
35
P
A
OUTn/P3_0
36
VBA
T1
37
CP_C1x
38
CP_C2x
39
CP_C1y
40
VBA
T2
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/SDA2
59
P0_1/URX
60
P0_0/UTX
61
RSTn
62
JT
A
G
63
P2_5/PCM_FSC/SF
64
P2_4/SCL1/PCM_DO/DP3
65
P2_3/SD
A1/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_SUPPL
Y2
72
RFP0n
73
RFP4
76
VSS_P
ADR1
79
VSS_P
ADR2
77
RF_TXp
80
RFP2
75
VDD_P
ADR
78
RF_TXn
74
RFP3
4.7M
*R43
5.6
*R55
5.6
*R56
0
NC
*R57
*R30
470
*R31
470
*R20
2.7k
1200p
*C19
33n
*C54
*C55
82n
120k
*R36
820p
*C52
820p
*C53
82k
*R32
82k
*R34
680p
*C3
680p
*C4
*C5
10n
10n
*C6
4.7M
*R42
*C14
0.027u
*D21
10n
*C42
10n
*C43
NC
C18
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
EEP_WP
Lo
w_Rad
LED2
LED1
EEP_WP
CHARGE
eco_mode
SCL2
SD
A2
DC_IN
Charge -
Charge +
TO RF BLOCK
TG65/85xx only
3V DCDC convertor
Charge -
Charge +
1.8V
3.0V
TX _RF
RX _RF
TX _AF
Bell signal
Caller ID
0.75V
0V
250mVp-p
Loop Current
Charge
Current
Current
RX_AF
Bell signal
*IC401
IC2
IC3
*IC7
KX-TG6521/6522
RU
SCHEMATIC DIAGRAM (Base Unit)
NC: No Components
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(8)
(9)
68
KX-TG6521RUB/KX-TG6521RUT/KX-TG6522RUT/KX-TGA651RUB/KX-TGA651RUT
13.3. Schematic Diagram (Base Unit_Operation)
KX-TG6521/6522 SCHEMATIC DIAGRAM (
Base Unit_Operation
)
NC: No Components
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
ANS1
STOP
ERASE
MSG2
MSG1
RPT
SKIP
UP
DOWN
LOCAT/INT
MEG_LED
KEYIN2
KEYS_B
ANS_LED
KEYS_E
KEYS_C
KEYIN1
2APVCC
KEYIN3
KEYS_D
LED902
RED
A
A
K
*LED901
RED
A
A
K
*LED903
NC
A
K
Click on the first or last page to see other KX-TG6521RUB / KX-TG6521RUT / KX-TG6522RUT / KX-TGA651RUB / KX-TGA651RUT / KX-TG6522RU1 service manuals if exist.