Panasonic KX-TG8125RU / KX-TGA810RU / KX-TGA810RUS / KX-TGA810RUT Service Manual ▷ View online
69
KX-TG8125RU/KX-TGA810RU
11.8. How to Check the Handset Speaker or Receiver
1. Prepare the digital voltmeter, and set the selector knob to ohm meter.
2. Put the probes at the speaker terminals as shown below.
2. Put the probes at the speaker terminals as shown below.
11.9. Frequency Table (MHz)
Note:
Channel No. 10: In the Test Mode on Base Unit and Handset.
BASE UNIT
HANDSET
Channel No
Transmit Frequency
Receive Frequency
Transmit Frequency
Receive Frequency
1
1897.344 1897.344 1897.344 1897.344
2
1895.616 1895.616 1895.616 1895.616
3
1893.888 1893.888 1893.888 1893.888
4
1892.160 1892.160 1892.160 1892.160
5
1890.432 1890.432 1890.432 1890.432
6
1888.704 1888.704 1888.704 1888.704
7
1886.976 1886.976 1886.976 1886.976
8
1885.248
1885.248
1885.248
1885.248
9
1883.520 1883.520 1883.520 1883.520
10
1881.792 1881.792 1881.792 1881.792
70
KX-TG8125RU/KX-TGA810RU
12 Schematic Diagram
12.1. For Schematic Diagram
12.1.1. Base Unit (Schematic Diagram (Base Unit_Main))
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.
12.1.2. Handset (Schematic Diagram (Handset))
Notes:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams may be modified at any time with the development of new technology.
2. The schematic diagrams may be modified at any time with the development of new technology.
12.1.3. Charger Unit (Schematic Diagram (Charger Unit))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. This schematic diagram may be modified at any time with the development of new technology.
71
KX-TG8125RU/KX-TGA810RU
Memo
72
KX-TG8125RU/KX-TGA810RU
12.2. Schematic Diagram (Base Unit_Main)
L2R
J1
NC
J2
NC
L1
33u
L2
33u
K680p
C9
K680p
C10
D3
4
1
3
2
R11
10
J3
NC
J4
0
100k
R14
2.7k
R15
C11
NC
LINE_DC
2.2k
R17
10k
R16
C13
NC
27k
R18
Q5
3
2
1
C20
NC
47k
R24
C21
NC
R25
NC
R26
NC
NC
D7
12
Q3
3
2
1
SA1
NC
D15
12
D16
NC
1
2
R2
NC
Q2
1
3
2
Q4
1
3
2
C18
NC
K4700p
C14
8.2k
R19
100k
R23
K0.056u
C23
C24
NC
+2.5V
100k
R27
470k
R28
D9
12
NC
D2
1
2
Q1
NC
2
3
1
R1
10k
C1
NC
1500p
C3
1M
R4
C5
K1000p
1500p
C4
1M
R6
R5
180k
C6
K1000p
R7
NC
100k
R8
+2.5V
D5
NC
1
2
D6
NC
12
R9
NC
100k
R10
1
*INT1/P11
2
VDDIO1
3
VDD1
4
VSS1
5
SDA1/P25
6
SCL1/P24
7
*INT5/VDDE/P15
8
*INT2/P12
9
AVD
10
AVS
11
CAP
12
Xtal1
13
VSSRF
14
RFCLKp
15
RSSI/RFCLKm
16
VDDRF
17
RFCLKd
18
TDO
19
RDI
20
SK
21
PD1/SIO
22
LE
23
P31/PD1
24
P32/PD2
25
P33/PD3
26
P34/PD4
27
TDOD/P35/PD5
28
P36/PD6
29
VSS2
30
VDDIO2
31
VDD2
32
PCM_FSC/*INT0/P10
33
P00/UTX
34
P01/URX
35
P02/JTIO
36
P03/SDA2
37
P04/SCL2
38
P05/SPICLK/PCM_CLK
39
P06/SPIDO/PCM_DOUT
40
P07/SPIDI/PCM_DIN
41
VSS3
42
VDD3
43
P23/ADC1
44
P17/CHARGE/INT7
45
*RST
46
VBAT1
47
LDO1_CTRL
48
LDO2_
CTRL
49
LDO1_Sense
50
A
VS2
51
A
VD2
52
*CIDIN
53
*LSR/REF
54
LSRp/REF
55
RINGING
56
*MIC/CIDOUT
57
VREFm
58
A
GND
59
MICp
60
CIDINp
61
P14/*INT4
62
P13/*INT3
63
ADC2
64
ADC0
J101
J104
J103
J102
R76 1k
C77
NC
C79
NC
C78
NC
C76
NC
SW1
NC
1
2
R81
3.3k
Q9
Q8
1
3
2
K0.1u
C56
C54
K0.022u
+1.8V
D12
1
2
15
R72
VDD1
+2.5V
C58
NC
+2.5V
I/O
1
O/I
2
VSS
3
VDD
5
CONT
4
C63
D6p
X1
1
2
3
C62
J27p
VDD2
10u
C64
R63
2.2k
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
+2.5V
+2.5V
Q14
2
3
1
C50
K0.01u
R61
1k
R60
22k
+3.3V
R58
6.8k
NC
I/O
1
O/I
2
VSS
3
VDD
5
CONT
4
C47
NC
R54
NC
R52
NC
R51
NC
R48
NC
C46
NC
C44
NC
D11
NC
12
Q6
NC
1
3
2
C45
NC
R49
NC
Q7
NC
2
3
1
R53
NC
K0.1u
C51
C60
K0.1u
C61
K0.1u
C73
K0.1u
TP16
TP15
C74
K0.1u
C75
K0.1u
C59
K0.1u
C67
K0.1u
NC
1
CD
2
+VREF
3
+VIN
4
-VIN
5
VOUT1
6
V+
7
GND
8
VOUT2
NC
1
Vout
2
NC
3
GND
4
Cn
5
Cont
6
Sub
7
Vin
C33
NC
C35
NC
+4.0V
VDD4
R40
NC
D10
NC
12
C38
NC
C39
NC
C40
NC
R42
NC
C42
NC
330u
C36
VDD3
+3.3V
120
R38
200
R39
4
Fin
1
ADJ/GND
3
Input
2
Output
+8.0V
C55
K0.1u
DCM
SP+
SP-
1k
R79
1k
R80
R45
NC
SP+
NC
R47
NC
R46
SP-
NC
R50
L2T L1T L1R
22
R55
22
R56
CN2
2
1
NC
C30
NC
C69
R44
NC
R43
NC
C41
NC
CN1
1
2
3
4
2
3
4
5
6
10u
C71
K1u
C68
2.2k
R62
100k
R34
C34
NC
12
R21
K1u
C65
R37
NC
D8
NC
12
D17
NC
12
2.2k
R59
K1u
C70
100k
R32
SA2
NC
J220p
C52
J220p
C53
D1
NC
1
2
CN4
NC
1
2
27
R22
3.3M
R73
0
R65
NC
R66
NC
R68
0
R69
0
R70
C2
NC
18
R67
K220n
C72
C12
NC
100
R75
TP23
3.9k
R57
R74
NC
TP9
TP_RLY1
L1T/TP_RLY2
L2T/TP_RLY3
L1R/TP_RLY4
TP_RLY5
L1T/TP_RLY2
L2T/TP_RLY3
L1R/TP_RLY4
TP_RLY5
D4
12
10k
R77
10k
R78
+2.5V
C134
NC
R64
NC
10p
C135
C8
10p
C7
10p
10p
C136
10p
C137
C138
NC
C139
NC
10p
C37
10p
C49
10p
C48
3.3k
R71
0.1u
C140
1k
R35
56
R29
3.3k
R117
1k
R33
C57
NC
C66
NC
18
R116
R3
180k
C141
56n
C15
1u
1u
C22
C16
NC
C17
K2.2u
C31
K2.2u
C43
NC
R41
NC
C143
NC
10p
C149
10p
C144
10p
C145
10p
C146
10p
C147
10p
C148
C32
100u
C19
10p
R13
680
R12
10k
10p
C150
10p
C151
0
L9
R36
150k
2.2k
R20
47n
C25
RSSI
LE
SIO
TDO
RDI
SK
RD
Y
RESET
KEY0
RO
W
2
KEY1
SPIDI
SPIDO
SPICLK
TAM_CSn
RO
W
1
RO
W
0
RO
W
0
TAM_RSTn
TAMIC_CSn
NSA/CLIP
RFCLK
Charge +
Charge -
DC_IN
GND
JTAG
RX
TX
for TG7100/8100
for TG7120/8120
for TG7100/8100
for TG7100
except TG7100
for TG7120/8120
except TG7120/8120
For NL
For JT
TP10
Charge Current
RX_AF
1.8V
2.5V
3.3V
TX_AF
Loop Current
25mV p-p
0V
0.7V
Caller ID,
Bell Signal
Bell Signal
Bell signal
TX DATA
RX DATA
IC7
IC4
IC3
IC2
IC1
IC6
IC5
(1)
(2)
(3)
BBIC
EEPROM
NC: No Components
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