Panasonic KX-TG9127UAS / KX-TG9127UAT / KX-TGA910UAS / KX-TGA910UAT Service Manual ▷ View online
77
KX-TG9127UAS/KX-TG9127UAT/KX-TGA910UAS/KX-TGA910UAT
10u
C27
C29
NC
+3.3V
C101
NC
2.2k
R102
470
R103
Q10
1
3
2
C103
NC
C104
NC
C105
NC
1
GND1
2
ANT2
3
VCCPA
4
GND2
5
GND3
6
VCC_OC
7
GND4
8
RSSI
9
SYRI
10
GND5
11
GND6
12
SYEN
13
SYD
A
14
SYCL
15
GND7
16
RX_D
A
T
A
17
GND8
18
TXDA
19
GND9
20
*RESET
21
ANT1
22
GND10
23
GND11
24
GND12
25
GND13
26
GND14
27
GND15
28
GND16
29
GND17
30
GND18
31
A_1
32
GND19
C108
NC
R104
NC
C115
NC
C116
NC
C26
NC
C109
NC
C111
NC
C113
NC
C114
NC
C132
NC
R105
NC
J22p
C112
CLK
C130
NC
C131
NC
C128
NC
R110
NC
R111
100
C129
NC
R112
1k
K1000p
C127
J150p
C126
C107
NC
C106
NC
+2.5V
270
R106
D10p
C118
D10p
C120
C122
NC
L7
33n
DA
1
1
2
3
R107
NC
C121
NC
L5 NC
R109
180
R108
NC
C125
D10p
D14
1
2
D13
1
2
Q12
2
3
1
10k
R98
10k
R99
Q13
2
3
1
K1000p
C97
+2.5V +1.8V
+2.5V
SP+
SP-
+3.3V
+2.5V
330
R91
NC
C87
10k
R89
+3.3V
C86
K0.01u
+3.3V
Q11
2
3
1
22k
R86
2.2k
R85
1k
R83
2.7k
R84
NC
R88
1
GPIO4/
PCM_DI
2
GPIO5/PCM_DO
9
SPI_DI
3
GPIO6/PCM_CLK
4
GPIO7/PCM_FSC
5
VDD1
6
VDDIO1
7
CLK
8
*PF
10
SPI_DO
11
SPI_CLK
12
SPI_EN
13
AVD1
14
GPO9/PAOUTp
15
VDDPA
16
GPO8/PAOUTm
17
GPIO0
18
GPIO1
19
VDD2
20
VDDIO2
21
GPIO2
22
GPIO3
23
*RST
24
AV
D
2
25
*LSR
26
LSRp
27
MICh
28
*MIC
29
VREFm
30
VBUF
31
MICp
32
VREFp
33
Fin
K0.1u
C84
K0.1u
C83
K0.1u
C80
K0.1u
C133
K0.1u
C85
K0.1u
C82
100k
R82
1k
R87
1k
R92
NC
C90
K0.1u
C89
NC
C91
NC
C88
R90
NC
R113
NC
+3.3V
0
R114
NC
R115
10k
R100
ANT
A_1
A_2
CN5-3
GND
CN5-1
ROW0
CN5-2
ROW1
CN6-1
ROW2
CN6-2
KEY0
CN6-3
KEY1
CN6-4
LED1
CN6-5
VDD
CN5-4
LED2
CN5-5
GND
K0.1u
C142
1M
R118
K0.1u
C81
0
R93
0
R94
0
R95
0
R96
0
R97
1u
C102
100n
C28
L4
6.8n
C117
3p
10p
C119
220
R119
K1000p
C110
1
RDY/*BUSY
2
*RESET
3
*WP
4
NC1
5
NC2
6
VCC
7
GND
8
NC3
9
NC4
10
NC5
11
*CS
12
SCK
13
SI
14
SO
15
NC6
16
NC7
17
NC8
18
NC9
19
NC10
20
NC11
21
NC12
22
NC13
23
NC14
24
NC15
25
NC16
26
NC17
27
NC18
28
NC19
270
R120
10
R101
C124
1p
CN6
CN5
10p
C92
10p
C93
10p
C94
10p
C95
10p
C96
2.2n
L11
0.5p
L6
ANT_1
6.8n
L3
2.2n
L10
ANT_2
820
R31
470
R30
SK
SIO
TDO
RESET
RDI
RSSI
LE
TAMIC_CSn
SPICLK
SPIDI
SPIDO
ANSWER_ON
MESSA
GE
RFCLK
SPIDI
SPIDO
SPICLK
TAM_RSTn
RDY
MESSAGE
ANSWER_ON
NSA/CLIP
ROW0
RFCLK
TAM_CSn
T
AM_RSTn
KEY1
KEY0
ROW2
ROW1
ROW1
Flat-cable
RF Module
0V
2.5V
10.368MHz
RX DATA
TX DATA
Beep/Bell signal
3.3V
IC10
IC9
FLASH MEMORY
IC8
(1)
(2)
(3)
KX-TG9127 SCHEMATIC DIAGRAM (Base Unit_Main)
NC: No Components
78
KX-TG9127UAS/KX-TG9127UAT/KX-TGA910UAS/KX-TGA910UAT
12.3. Schematic Diagram (Base Unit_Operation)
SKIP
1 2
VOL_UP
1 2
REPEAT
1 2
VOL_DOWN
1 2
PLAY
1 2
STOP
1 2
ERASE
1 2
ANS_ON
1 2
LOCATOR
1 2
GND
VDD
LED2
1
2
LED2T
CN10-1
CN11-3
CN10-3
CN11-2
CN11-1
CN10-5
CN11-4
CN10-2
CN10-4
CN11-5
LED1
1
2
KX-TG9127 SCHEMATIC DIAGRAM (Base Unit_Operation)
79
KX-TG9127UAS/KX-TG9127UAT/KX-TGA910UAS/KX-TGA910UAT
Memo
80
KX-TG9127UAS/KX-TG9127UAT/KX-TGA910UAS/KX-TGA910UAT
12.4. Schematic Diagram (Handset)
103
LDO1_Sense
104
LDO1_CTRL
105
LDO2_CTRL
106
VBAT2
107
VBAT1
108
AVS2
109
AVD2
110
LSR+/REF
111
LSR-/REF
112
LSR_HS/CIDIN-
113
VREF_HS/CIDOUT
114
MIC-
115
VREF-
116
VBUF
117
AGND
118
MIC+
119
VREF+/CIDIN+
120
*RST
121
AD0/EXT_MEMORY
122
AD1
123
AD2
124
AD3
125
AD4
126
AD5
127
AD6
128
AD7
1
VDDIO1
2
VSS1
3
AD8
4
AD9
5
AD10
6
AD1
1
7
AD12
8
AD13
9
AD14
10
P3_7/PD7
11
P3_1/PD1
12
P3_5/PD5
13
P3_4/PD4
14
P3_3/PD3
15
P3_2/PD2
16
VDD1
17
VSS2
18
RFCLK
19
VDDRF
20
VSSRF
21
Xtal1
22
CAP
23
AV
S
24
AV
D
25
RSSI
26
RDI
27
CMPREF
28
TDO
29
AD15
30
AD16
31
AD17
32
AD18
33
AD19
34
AD20
35
AD21
36
AD22
37
AD23
38
LE
39
SO
40
SK
41
DAC/ADC2
42
P3_6/PD6
43
*RD
44
*WR
45
MI/READY
46
SCLK
47
UTX/P0_0
48
URX/P0_1
49
JTIO/P0_2
50
PCM_FSC1/P0_3
51
PCM_FSC0/P0_4
52
PCM_CLK/P0_5
53
PCM_DOUT/P0_6
54
PCM_DIN/P0_7
55
VDDIO2
56
VSS3
57
*DREQ0/*INT0/P1_0
58
*DACK0/*INT1/P1_1
59
ACS1/*DREQ1/*INT2/P1_2
60
ACS0
61
ACS2/*DACK1/*INT3/P1_3
62
*HOLD/*INT4/P1_4
63
VDDE/*HOLDACK/*INT5/P1_5
64
*BE1
65
*BE0
66
SCL2/P3_0
67
SDA2
68
DAB0
69
DAB8
70
DAB1
71
DAB9
72
DAB2
73
DAB10
74
DAB3
75
DAB1
1
76
VSS4
77
VDD2
78
VDDIO3
79
P2_0/PWM0/SPIDI
80
P2_1/PWM1/SPICLK
81
P2_2/ADC0/CLK100
82
P2_3/ADC1
83
P2_4/SCL1
84
P2_5/SDA1
85
DAB4
86
DAB12
87
DAB5
88
DAB13
89
DAB6
90
DAB14
91
DAB7
92
DAB15
93
P2_7/DC_CTRL/SPIDO
94
DC_I
95
P1_6/PON/INT6
96
P1_7/CHARGE/INT7
97
P2_6/stop_charge
98
VBA
T3/RINGING
99
DC_stab
100
DC_Sense
101
A
VS_sense
102
ADC3
1u
C120
3.3k
R123
3.3k
R129
120
R128
NC
C1
14
ANT1
1
GND1
2
ANT2
3
VCCPA
4
GND2
5
GND3
6
VCC_OC
7
GND4
8
RSSI
9
SYRI
10
GND5
11
GND6
12
SYEN
13
SYDA
14
SYCL
15
GND7
16
RX_DA
T
A
17
GND8
18
TXDA
19
GND9
20
*RESET
21
ANT1
22
GND10
23
GND11
24
GND12
25
GND13
26
GND14
27
GND15
28
GND16
29
GND17
30
GND18
31
A_1
32
GND19
3.3k
R126
1u
C1
15
NC
C1
19
BATTERY-
D6
12
BATTERY
1k
R72
4.0V 330u
C1
10k
R6
BATTERY+
BATTERY
CHARGE-
220k
R7
100m
R43
D10
Q10
1
2
K0.1u
C3
5.6n
F1
K1u
C36
CHARGE+
470
R5
L4
NC
6.3V 330u
C57
Q7
1
3
2
+1.8V
+4.0V
Q1
1
3
2
TP11
D1
1
2
TP12
Q8
1
3
2
+3.0V
NC
C48
NC
C47
NC
C16
TP10
NC
C46
+3.0V
URX
1k
R21
UTX
NC
C45
NC
C94
10k
R74
GND
1k
R20
10
100n
C2
X1
1
2
3
10
100n
C5
10
100n
C6
68n
C7
68n
C8
100n
C9
68n
C10
100n
C11
50
1n
C12
100n
C13
100n
C14
100n
C15
1n
C44
220
R78
1k
R19
C93
NC
10k
R62
220n
C19
BATTERY
39k
R27
+3.0V
+3.0V
1
VOUT
2
VIN
3
NC1
4
VOUT-SENSE
5
GND
6
BYPASS
7
VEN
8
NC2
+4.0V
1u
C1
18
10n
C122
330k
R66
+1.8V
ANT
Q9
B
C
E
1
3
2
Q11
2
3
1
Q4
B
C
E
Q5
B
C
E
5.6
R15
470k
R16
470k
R17
330
R37
2.2k
R41
1M
R23
100k
R24
100k
R25
68
R57
5.6k
R3
15k
R4
100
R13
3.3M
R12
10k
R73
R
1
2
INT
12
SOFT_A
12
SOFT_C
1
2
SP
12
CLEAR
12
+3.0V
CLK
+1.8V
+3.0V
5.6k
R46
5.6k
R54
Q13
B
C
E
Q14
B
C
E
B
O
G
LED7
1
2
3
4
+4.0V
JTAG
SCLK
22u
L1
C68
NC
C70
NC
1n
C65
1n
C66
D2
1
2
NC
C71
NC
C72
NC
C73
Q15
2
3
1
10k
R61
C69
NC
R49
47m
F 43k
R52
470
R127
150k
R122
22k
R121
F 68k
R51
F 220k
R60
F 18k
R53
5p
C34
18k
R124
18k
R130
18k
R125
F 160k
R50
POWER
330
R30
10k
R14
LED1
A
K
LED2
A
K
LED3
A
K
LED4
A
K
LED5
A
K
LED6
A
K
SW1
1
2
3
6
5
4
7
8
0
12
9
1
2
8
1
2
7
1
2
3
12
2
12
1
1
2
6
12
5
12
4
12
#
1
2
*
12
TP18
TP19
POWER_KEY
1
2
T
ALK
12
50
7p
C35
C4
NC
C127
NC
16
10n
C128
4.7k
R38
L5
NC
16
100n
C129
10
2.2u
C43
10
2.2u
C42
C130
NC
L6
L7
180
R135
220
R70
220
R136
10n
C23
16
10n
C133
C24 1u
3.3k
R71
47k
R137
47k
R138
47k
R139
Q12
1
E1
2
B1
3
C2
4
E2
5
B2
6
C1
Q3
1
E1
2
B1
3
C2
4
E2
5
B2
6
C1
100
R31
100
R32
100
R33
100
R34
100
R35
100
R36
68k
R80
68k
R81
10k
R82
SYDA
SYEN
SYCL
CHARGE
A
VS_sense
stop_charge
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A1
1
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A6
A5
A4
A3
A2
A1
DB15
DB7
DB14
DB6
DB13
DB5
DB12
DB3
DB10
DB2
DB9
DB1
DB8
DB0
SRAM_LB#
SRAM_UB#
FLASH_CS#
SRAM_CS#
LCD_CS#
SYDA
SYEN
TXDA
RX_DA
T
A
RSSI
SYRI
DB1
1
RSSI
TXDA
ADC3
DC_I
LDO1_CTRLLDO1_CTRL
DC_Sense
DC_I
DC_CTRL
DC_CTRL
CHARGE
stop_charge
A
VS_sense
ADC3
LDO1_Sense
LDO1_CTRL
LDO2_CTRL
JTIO
UTX
URX
JTIO
URX
JTIO
READ#
WRITE#
WRITE#
KEY_OUTPUT_5
KEY_OUTPUT_4
KEY_OUTPUT_6
KEY_OUTPUT_7
KEY_INPUT_0
KEY_INPUT_1
KEY_INPUT_2
POWER_ON
RINGER_LED_CTRL
KEY_LED_CTRL
KEY_OUTPUT_0
KEY_OUTPUT_1
KEY_OUTPUT_2
KEY_OUTPUT_3
KEY_OUTPUT_4
KEY_OUTPUT_1
KEY_OUTPUT_2
KEY_OUTPUT_3
KEY_OUTPUT_4
KEY_INPUT_0
KEY_INPUT_1
KEY_INPUT_1
KEY_INPUT_2
DC/DC_V
out_CTRL
LCD_BL_CTRL
SYCL
POWER_ON
KEY_OUTPUT_0
KEY_OUTPUT_1
KEY_OUTPUT_2
KEY_OUTPUT_3
LCD_D/C
UTX
URX
LDO1_Sense
LDO2_CTRL
SYRI
KEY_LED_CTRL
RINGER_LED_CTRL
RF_RESET#
RF_RESET#
RX_DA
T
A
DC_Sense
DC/DC_Vout_CTRL
FLASH_RESET#
LCD_RESET#
KEY_OUTPUT_5
KEY_OUTPUT_6
DB4
KEY_OUTPUT_7
Push
with USB: Not necessary
without USB: Should be mounted
without USB: Should be mounted
IC1
IC20
IC7
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(7)
(8)
NC: No Components
1s
(When on charge)
Charge Current
Back light OFF: 4.0V (stand by)/3.5V (Talk)
Back light ON: 4.25V
Back light ON: 4.25V
TX DATA
RX DATA
TX DATA
RX DATA
115kHz
(Talk Mode)
3.0V
1.8V
0.7V
0V
25mVp-p
10.368MHz
3.0V
0V
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