Panasonic KX-TG6621RUB / KX-TG6621RUM / KX-TG6621UAB / KX-TG6621UAM / KX-TG6621CAB / KX-TG6621CAM / KX-TG6622CAB / KX-TGA661RUB / KX-TGA661RUM Service Manual ▷ View online
69
KX-TG6621RU/KX-TG6621UA/KX-TG6621CA/KX-TG6622CA/KX-TGA661RU
KX-TG6621RU/UA/CA/TG6622CA SCHEMATIC DIAGRAM (Base Unit_Main)
NC: No Components
QSPI_IO3
QSPI_IO2
QSPI_IO2
QSPI_CS
QSPI_SCK
QSPI_IO1
QSPI_IO0
QSPI_IO0
ANS_LED
MSG_LED
LCD_DO
LCD_RST
LCD_CD
LCD_CS
LCD_CLK
QSPI_CS
QSPI_IO1
QSPI_IO2
QSPI_IO
3
QSPI_SCK
QSPI_IO0
PF_SUP
CHARGE_DET
ACFL
Q8
C614
1u
R615
56k F
R16
10k
*R12
3
NC
(3
216)
R14
100k
R18
27k
C17
NC
C28
0.0
33
u
R27
100k
R19
8.2k
R23
100k
C18
NC
C57
N
C
R21
12
TP9
C2
3
NC
R28
470k
C56
K0.1u
C22
1u
C155
(1005)
NC
R33
1k
R35
1k
R10
100k
R8
100k
C61
100n
R117
3
.3
k
C75
1
00n
*D16
NC
A
K
*D15
NC
A K
C306
NC
C305
1u
F1 3A
*R2
NC
D21
Q9
R106
220
R109
220
*C2
NC
C167
NC
C7
100n
C8
100n
C65
D10p
L2T
L2R
D26
NC
ANT1
RF_RXn
RXON
ANT2
RF_RXp
C10
680p
LINE_DC
*C1
NC
R36
120k
C617
1u
R4
1M
R6
1M
R3
180k
R5
180k
C5
10n
C6
10n
C42
10n
C43
10n
R42
4.7M
R43
4.7M
C4
C4
680p
C54
33n
C55 82n
R
3
2
82k
R3482k
C52
820p
C53 820p
R7
NC
R9
NC
*Q2
*R
3
1
470
R22
2
7
*R20
2.7k
C25
0.047u
R
3
7
3
.9k
C19
1200p
R40
270
C171
D10p
R15
2.7k
C62100n
RA1
1k
1
2
3
4
R38 1k
+3.0_CP
C14
0.027u
RF_TXp
RF_TXn
TXON
TXON
R71
10k
R611
1
0k
P1
C1
3
6
D10p
C1
3
7
D10p
C168
D10p
C169
D10p
C170
D10p
+1.8V
GAP
D3
4
3
1
2
C
3
20
100n
GND
C16
NC
GND
C15
NC
R116
0
R29
0
TP10
GND
C141
NC
R
3
58
10k
*R
3
54
10k
*R
3
55
680
+1.8V
+2.85V
+5.5V
R
3
20
2.2k
+5.5V
Q3
+1.8V
+2.4V
+2.85V
+1.8V
C702
NC
+3.0_CP
J101
DC_IN
+2.85V
R95
NC
Q10
NC
C
3
7
C86
1
u
C
3
9
NC
C
3
0N
C
C88
0
.01u
R130
1k
C62
3
1u
C622
NC
R129
10k
C156
NC
R811
NC
NC
NC
R126
NC
CHARGE+
C626
N
C
C157
1n
+1.8V
D22
TP15
D28
NC
R607 0.1
+5.5V
+5.5V
R91
33
0
R9
3
680
R605
4.7k
C602
180p
C
3
8
220p
GND1
GND1
+2.85V
*R
3
64
10k
+5.5V
+2.85V
+2.85V
R609 12k
DCP
DCM
L1R L1T
TP16
R608 0.1
C
3
6
1000u
6.
3
C
3
2
100u
1
6
C640
NC
R612 0.1
CHARGE+
+5.5V
Q23
D6
NC
D5
NC
D9
NC
D10
NC
NC
D2
3
NC
Q352
*Q361
C3
680p
C9
680p
*SA1
2
1
SA2
NC
NC
2
1
Q602
Shield
1
6
7
9
11
3 4 5
2
8
10
12
Q22
R56
1
(0.5W)
R55
1
(0.5W)
*R57
1.8k
+5.5V
*C
3
52
NC
*R351
3.9k
*R
3
52
56k
2.7V
2
VIN
1 VOUT
3
NC
4
VSS
VDD3
VDD2
VDD1
1
2
3
4
5
Q4
.
1 *CS
2 SO/SIO1
2 SO/SIO1
6
SCLK
7
NC/SIO3
3 *WP/SIO2
8
VCC
4 GND
5
SI/SIO0
1
VSS_LNA1
2
RF_RXn
3
RF_RXp
4
VSS_LNA2
5
RFP1
6
RFP0
7
REF_RES
8
AVS_XTAL
9
XTAL2
10
XTAL1
11
AVD_XTAL
12
RF_SUPPLY1
13
VDD1
14
P4_0/SPI2_EN
15
P4_1/SPI2_CLK
16
P4_4
17
PARADET/P3_4
18
RINGOUT/RINGING/P3_5
19
RINGn/P3_6
20
RINGp/P3_7
21
CIDINp/P3_2
22
VREFp
23
CIDINn/MICp
24
CIDOUT/MICn
25
MICh
26
VREFm
27
LSRp
28
LSRn
29
ONE_CELL
3
0
AV
D
3
1
LDO_CTRL
3
2
ADC0/P
3
_
3
33
ADC1/INT0/P1_0
3
4
NTC/ADC2
3
5
SOCp
3
6
SOCn
3
7
MIC2n
3
8
MIC2p
8
3
P5_5
84
WLED_CUR_0
85
WLED_CUR_1
86
WLED_CUR_2
87
P2_1/ECZ2/PWM1/LED4
88
P2_0/ECZ1/PWM0/LED
3
89
VDD
3
90
LDORF_CTRL
91
RFP0n
92
RF_SUPPL
Y2
9
3
RF_SUPPL
Y_P
A
94
RF_TXn
95
RF_TXp
96
RFP2
1
33
VSS/GND
109
DC_CTRL
108
DC_I
111
DC_CTRLN
107
DC_SENSE
100
P4_2/SPI2_DO
101
P4_3/SPI_DI
129
P5_6
130
P5_7
125
QSPI_CS
122
VDDIO
121
QSPI_IO0
126
QSPI_IO1
123
QSPI_IO2
119
QSPI_IO3
120
QSPI_SCK
115
ULP_MAIN_CTRL
97 VSS/GNDplane1
98 VSS/GNDplane2
99 VSS/GNDplane3
102 VSS/GNDplane4
103 VSS/GNDplane5
104 VSS/GNDplane6
105 VSS/GNDplane7
106 VSS/GNDplane8
112 VSS/GNDplane9
113 VSS/GNDplane10
118
ULP_PORT
116
ULP_VBAT
117
ULP_XTAL
110
VBAT
131 VSS/GNDplane15
128 VSS/GNDplane14
127 VSS/GNDplane13
124 VSS/GNDplane12
114 VSS/GNDplane11
128 VSS/GNDplane14
127 VSS/GNDplane13
124 VSS/GNDplane12
114 VSS/GNDplane11
132 VSS/GNDplane16
X1
10.368M
1
3
2
C4
3
1
0.1u
C701
0.1u
C704 0.1u
C29 0.1u
R24
3
9k
*R30
390
C142
560p
D27
NC
C74
NC
C76
10p
*R124
10
*R12
*R13
*C12
NC
*R17
2.2k
*C166
NC
*R366 10k
+2.85V
*R365
47k
*Q363
*Q351
Q5
R610 22k
C77
NC
R
3
69
NC
C
3
58
NC
L3
22uH
C859
10p
10p
R
3
67
22k
R
3
59
NC
C27
10u
50
*R
3
6
3
1.5k
*R368
22k
R
3
5
3
22k
R
3
60
56k
Q354
*Q362
*R
3
61
68
*R
3
62
68
DC_IN
Charge -
Charge +
!
10k
680
IC7
*IC7
*IC351
IC2
IC431
2.85V DCDC convertor
(1)
(2)
(3)
(4)
(5)
(6)
2.85V
3.0V
1.8V
Rx AF
Rx RF
Tx AF
Tx RF
Caller ID
Bell signal
Bell signal
Loop current
Charge
current
current
Optional charge detector
0.75V
0V
250mVp-p
70
KX-TG6621RU/KX-TG6621UA/KX-TG6621CA/KX-TG6622CA/KX-TGA661RU
13.3. Schematic Diagram (Base Unit_Operation)
ANS
1 2
STOP
1 2
ERASE
1 2
MSG2
1 2
MSG1
1 2
SKIP
1 2
DOWN
1 2
RPT
1 2
UP
1 2
LOCAT/INT
1 2
ANS_LED
KEYIN3
MEG_LED
KEYIN1
KEYS_D
KEYIN2
KEYS_C
VLED
KEYS_E
LCD_GND
CARBON_TEST
CT1
CT2
LCD_SID
LCD_SCL
LCD_RST
LCD_CD
LCD_VDD
LCD_CS
LED902
A
K
LED901
A
K
MSG3
1 2
MSG4
1 2
BL1
KEY_1
KEY_2
LED905
LED906
GND
BL2
LED907
LED908
CN901
@CBN12-0.9-2.8X14.
1
2
3
4
5
6
7
8
9
10
11
12
GND
GND
GND
C901
1u
16V
16V
C902
1u
25V
25V
C90
3
1u
16V
R901
180
R902
180
180
R902
180
R903
180
R904
180
R904
180
1
10
1
10
GND
VG
/RSTB
/CSB
VSS
A0
SDA
SCLK
VDD1
VDD2
V0
XV0
KX-TG6621 SCHEMATIC DIAGRAM (Base Unit_Operation)
NC: No Components
71
KX-TG6621RU/KX-TG6621UA/KX-TG6621CA/KX-TG6622CA/KX-TGA661RU
Memo
72
KX-TG6621RU/KX-TG6621UA/KX-TG6621CA/KX-TG6622CA/KX-TGA661RU
13.4. Schematic Diagram (Handset)
LCD_CD
LCD_SCL
LCD_SDA
SOCp
SOCn
BELL_LED
LCD_RESET
LCD_CSB
COL1
COL2
COL
3
COL4
URX
KEY_LED
ROW
3
ROW0
ROW1
CHARGE
CHARGE_CTRL
SOCn
COL2
COL1
ROW2
ROW
3
COL4
ROW1
COL3
ROW0
COL5
COL0
ROW2
BELL_LED
UTX
JTAG
LDO_CTRL
SOCp
COL5
BATTERY_ON
CHARGE
CHG+
COLORLCDLED
COLORLCDLED
LCD_RESET
LCD_CSB
LCD_CD
LCD_SDA
LCD_SCL
CHG+
CHARGE_CTRL
BATTERY_ON
KEY_LED
C12
K10u
URX
POWER
GND
*R25
NC
*C14
NC
*R22
NC
*C16
NC
GND
R66
1k
R64
10k
R215
0
R63
100
RA61
220
1
2
3
4
*C184
NC
UTX
+1.8V
R28 820
C1
3
8
NC
GND
GND
BATTERY
LED12
C1
3
9
NC
RF_TXn
RF_TXp
RF_TXp
RF_RXn
RF_RXp
RF_RXp
TXON
RXON
C44 K0.1u
R20
3
56k
F
GND
C4
3
D10p
C47
K1u
C17
NC
C11
K0.1u
C18
NC
VREFm
RA4
3.3k
3.3k
1
2
3
4
C13
K0.1u
GND
BATT-
C150
NC
BATTERY
GND
R45
0.1
BAT
BATT+
GND
C
3
42
NC
GND
GND
C10
K2.2u
GND
+1.8V
1.8V
C
3
41
NC
GND
C46 D10p
BATTERY
+1.8V
RA1
1k
1
2
3
45
6
7
8
STM
L46
L47
L47
C
3
9
NC
R20
10
CKM
CP_V2
CP_V2
CP+3.0V
CP3.0V
C45
K0.1u
C40
k0.1u
C49
K1u
K1u
C50
K1u
C48
NC
VREFm
C96
D10p
C97
D10p
C865 10p
C866
1u
JTAG
R27
820
*C175
K1u
*C580
D10p
CN5
4
4
RESETB
CN5
6
6
SCLK
CN5
5
5
A0
CN5
9
9
VDDA
CN5
2
2
OPT_PWR
CN5
10
VSS
CN5
11
V0
CP2.8V
CN5
3
3
LCD_CSB
GND
CN5
1
1
GND
CN5
8
8
VDD
CN5
12
GND
GND
*LED9
*LED4
*LED1
*LED5
*LED2
*LED6
*LED8
*LED
3
*LED7
*C8
K0.1u
*C7
K0.01u
GND
GND
GND
R
3
0
1.5k
*C9
K0.1u
K0.1u
GND
GND
R5
1.2k
C
3
5
0.1u
5
1 2
4
1 2
1
1 2
0
1 2
TALK
1
2
9
1 2
SHARP
1 2
SP
1 2
AST
1 2
8
1 2
3
1 2
R
1
2
2
1 2
SOFT_A
1 2
SOFT_C
1 2
SOFT_B
1 2
7
1 2
6
1 2
S1
1 2
C
3
4
0.1u
GND
GND
*C173
NC
GND
C189
K1u
CP_V2
CP_V2
GND
C
3
4
3
0.1u
C
3
40
10p
GND
C
3
45
10p
C
3
44
0.1u
GND
GND
C5
0.1u
R23
1k
*R29
NC
*R50
10k
*C104
D10p
*C107
NC
*C106
NC
*C10
3
J100p
*R54
10k
*C105
J100p
*R55
1k
R7
10k
GND
C51
K1u
K1u
C55
D10p
GND
C54 D10p
C52
K10u
GND
C79
D10p
D10p
C78
D10p
D10p
GND
GND
GND
GND
C1
220u
6.
3
RE2
C2
220u
6.
3
RE2
C
3
220u
6.
3
RE2
D1
*IC7
KX-TGA661 only
1 CONT
2 GND
4
VOUT
5
VIN
3 NP
*D2
*R18 100k (KX-TGA661 only)
R19 33k
*C32 K0.1u (KX-TGA661 only)
*C60
NC
GND
*C61
NC
*C62
NC
CP2.8V
CP_V2
CHG+
CHG-
LEFT
1
2
DOWN
1 2
RIGHT
1 2
UP
1 2
*R70
NC
CP2.8V
CP2.8V
*C63
NC
D3
*R7
3
NC
*R74
NC
*C68
NC
*C65
NC
*C69
NC
*R71
NC
*R72
NC
R33
100
R4
3.3(3216)
R3
1k
Q9
Q5
Q6
Q4
X1
10.368M
1
3
2
R31
10k
R8
3
0k
R9 30k
C19
K1000p
R6 NC
GND
Q7
*R5
33
.3
k
R10
1.5k
C53 K2.2u(2125)
F1
2.5A
*CN51
1
3
VDDIO
*CN51
9
RS/A0
*CN51
2
LED-
*CN51
3
AVDD
*CN51
14
VDD
*CN51
10
/CS
*CN51
6
VGL
*CN51
8
SDA/SDI
*CN51
11
/RESET
*CN51
5
C11B
*CN51
12
GND
*CN51
1
LED+
*CN51
7
SCL/SCK
*CN51
4
C11A
Q2
CN5
7
7
SID
L48
IC1
1
VSS_LNA1
2
RF_RXn
3
RF_RXp
4
VSS_LNA2
5
RFP1
6
RFP0
7
REF_RES
8
AVS_XTAL
9
XTAL2
10
XTAL1
11
AVD_XTAL
12
RF_SUPPLY1
1
3
PARADET/P
3_4
14
RINGOUT/RINGING/P
3_5
15
RINGn/P
3_6
16
RINGp/P
3_7
17
CIDINp/P
3_2
18
VREFp
19
CIDINn/MICp
20
CIDOUT/MICn
21
MICh
22
VREFm
23
LSRp
24
LSRn
25
AVD
26
LDO_CTRL
27
ADC0/P3_3
28
ADC1/INT0/P1_0
29
NTC/ADC2
30
SOCp
31
SOCn
32
CHARGE_CTRL
33
P1_7/CHARGE
34
DP1/PAOUTp/P3_1
35
VDD_PA
36
DP0/PAOUTn/P3_0
37
ULP_XTAL
38
CP_C1x
39
CP_C2x
40
CP_C1y
41
VBAT_CP
42
CP_C2y
4
3
CP_VOUT1
44
CP_VOUT2
45
PON/P1_6
46
VDD1
47
P2_7/BXTAL
48
P1_5/INT5/RDI/VDDE
49
P1_4/INT4/TDOD
50
P1_
3/INT
3/SIO
51
P1_2/INT2/SK
52
P1_1/INT1/LE
5
3
P2_6/WTF_IN
54
P0_7/SPI_DI/PWM1
55
P0_6/SPI_DO
56
P0_5/SPI_CLK
57
P0_4/SPI_EN
58
P0_
3/SCL2/URX2
59
P0_2/SDA2/UTX2
60
P0_1/URX/PWM0
61 P0_0/UTX
62 RSTn
63 JTAG
64 P2_5/PCM_FSC/SF
65 P2_4/SCL1/PCM_DO/DP3
66 P2_3/SDA1/PCM_DI/DP2
67 P2_2/PCM_CLK/CLK100
68 WLED_CUR_0
69 WLED_CUR_1
70 WLED_CUR_2
71 P2_1/ECZ2/PWM1/LED4
72 P2_0/ECZ1/PWM0/LED3
73 VDD2
74 LDORF_CTRL
75 RFP0n
76 RF_SUPPLY2
77 RF_SUPPLY_PA
78 RF_TXn
79 RF_TXp
80 RFP2
97
97
GND
*RA32
150
1
2
3
45
5
6
7
8
*RA31
470
1
2
3
4
*RA30
470
1
2
3
4
6
7
8
GND
*R51
33
0
*R52
33
0
R1 NC
*C67 NC
*R75
NC
*C66
NC
*C174
K1u
*C64
NC
VREFm
BELL LED
(Amber)
TO RF BLOCK
To Battery
MICp
MICn
(MAX500mA)
to LCD UNIT(Monochrome 1.8inc FullDot for TGA661)
Heat Shield
KEY B/L
LCD B/L
CHARGE
Terminal
Amber LCD B/L(TGA661EU)
only TGA806
1.5inc TFT Colour LCD I/F
NC: No Components
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(9)
(10)
(11)
(11)
(13)
(12)
(14)
(8)
Charge Current
3.0V
3.0V
4.0V
RX_RF
TX_RF
!
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