Panasonic KX-TG8286RUT / KX-TGA828RUT Service Manual ▷ View online
77
KX-TG8286RUT/KX-TGA828RUT
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
78
KX-TG8286RUT/KX-TGA828RUT
Memo
79
KX-TG8286RUT/KX-TGA828RUT
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.
80
KX-TG8286RUT/KX-TGA828RUT
12.2. Schematic Diagram (Base Unit_Main)
L1 RX
L2 RX
L1 Bell
L2
IN-USE
L1 Caller ID
L2 Caller ID
L1 IN-USE
L2 Bell
L1 TX/DTMF
1.8V
3.0V
L2 TX/DTMF
TX DATA
TX DATA
RX
DATA
RX DATA
0V
3.0V
10.368MHz
0V
0.7V
25mVp-p
D801
1
2
3
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_DATA
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
CLK
+1.8V
+3.0V
+1.8V
+3.0V
10
1u
C304
10
1u
C303
+3.0V
R503
NC
TP+3.0V
TP+1.8V
+3.3V
390
R614
390
R615
390
R616
390
R617
+1.8V
10k
R501
2.2k
R504
CN302
1
CN302
32
CN302
31
CN302
30
CN302
29
CN302
28
CN302
27
CN302
26
CN302
25
CN302
24
CN302
23
CN302
22
CN302
21
CN302
20
CN302
19
CN302
18
CN302
17
CN302
16
CN302
15
CN302
14
CN302
6
CN302
5
CN302
4
CN302
3
CN302
2
CN302
8
CN302
7
CN302
13
CN302
12
CN302
11
CN302
10
CN302
9
+2.5V
+3.3V
+3.3V
0
R518
CL512
CL519
CL520
CL559
CL560
CL540
NC
C806
4.7u
C802
R824
NC
0
R812
150
R803
56
R804
820
R813
1k
R814
4.7k
R815
4.7k
R817
1k
R816
1k
R819
4.7k
R820
100
R818
100
R810
1k
R811
4.7k
R821
L807
L808
5.6k
R341
15k
R342
X501
1
3
2
5.6n
L804
2.2k
R521
2.2k
R522
2.2k
R525
0
R524
47k
R502
13k
R343
5.6k
R344
270
R832
C846
NC
2.2k
R505
100k
R506
ANT1
1
2
GND
+3.3V
K0.01
C527
180
R805
180
R808
Q502
1
OUT
2
Vdd
3
Vss
5
CD
4
NC
ANT2
ANT3
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
R517
NC
R526
0
R835
1n
C520
1n
C521
1n
C522
1n
C523
1n
C524
1n
C529
2
C805
2
C812
C510
6p
C511
7p
100p
C528
150p
C826
10p
C818
10p
C824
C501
100n
C503
100n
C507
100n
C508
100n
C509100n
C512
100n
C513
100n
C514
100n
C515
100n
C516
100n
C526
100n
C601
100n
220n
C504
10p
C807
10p
C808
10p
C809
10p
C811
10p
C813
10p
C815
10p
C816
10p
C823
10p
C827
10p
C829
10p
C831
10p
C832
50
10p
C833
1n
C830
1n
C841
1n
C842
1n
C843
1n
C844
1n
C848
1n
C849
NC
C804
C502
NC
12p
C817
12p
C825
7p
C820
0.5p
C821
103
LDO1_Sense
104
LDO1_CTRL
105
LDO2_CTRL
106
VBAT2
107
CIDIN+
108
AVS2
109
AVD2
110
LSR+/REF
111
LSR-/REF
112
CIDIN-
113
CIDOUT
114
MIC-
115
VREF-
116
VBUF
117
AGND
118
MIC+
119
VREF+
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
AD11
7
AD12
8
AD13
9
AD14
10
P37/PD7
11
P31/PD1
12
P35/PD5
13
P34/PD4
14
P33/PD3
15
P32/PD2
16
VDD1
17
VSS2
18
RFCLK
19
VDDRF
20
VSSRF
21
Xtal1
22
CAP
23
AVS
24
AVD
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
SIO
40
SK
41
DAC/ADC2
42
P36/PD6
43
*RD
44
*WR
45
MI/READY
46
SCLK
47
UTX/P00
48
URX/P01
49
JTIO/P02
50
PCM_FSC1/P03
51
PCM_FSC0/P04
52
PCM_CLK/P05
53
PCM_DOUT/P06
54
PCM_DIN/P07
55
VDDIO2
56
VSS3
57
*DREQ0/*INT0/P10
58
*DACK0/*INT1/P11
59
ACS1/*DREQ1/*INT2/P12
60
ACS0
61
ACS2/*DACK1/*INT3/P13
62
*HOLD/*INT4/P14
63
VDDE/*HOLDACK/*INT5/P15
64
*BE1
65
*BE0
66
SCL2/P30
67
SDA2
68
DAB0
69
DAB8
70
DAB1
71
DAB9
72
DAB2
73
DAB10
74
DAB3
75
DAB11
76
VSS4
77
VDD2
78
VDDIO3
79
P20/PWM0/SPIDI
80
P21/PWM1/SPICLK
81
P22/ADC0/CLK100
82
P23/ADC1
83
P24/SCL1
84
P25/SDA1
85
DAB4
86
DAB12
87
DAB5
88
DAB13
89
DAB6
90
DAB14
91
DAB7
92
DAB15
93
TM
94
P27/SPIDO
95
P16/PON/INT6
96
P17/CHARGE/INT7
97
P26/stop_charge
98
RINGING
99
LINEREF
100
LINEOUT
101
LINE_IN+
102
LINE_IN-
C834
330p
C835
330p
Q301
Q302
150
R618
R834
NC
R833
NC
0
R822
R823
NC
0
R520
0
R523
560
R619
RF_RESET*
RFCLK
SPIDO
D15
D7
D14
D6
D13
D5
D12
D4
TAM_RESET*
TAM_FLASH_RY/BY*
SPICLK
D11
D3
D10
D2
D9
D1
D8
D0
SRAM_LB*
A18
A17
A16
A15
A14
A17
A16
A15
A14
RDI
RSSI
RSSI
RF_RESET*
A13
A12
A12
A10
A9
A8
A7
A9
A8
A7
LINE2_TX
SRAM_UB*
KEY_INPUT_0
KEY_INPUT_1
FLASH_CS*
SRAM_CS*
KEY_INPUT_2
PCM_DIN
PCM_DOUT
PCM_CLK
PCM_FSC
WRITE*
READ*
TAM_CS*
SK
SO
A6
A5
A4
A3
A2
A1
A0
LINE1_TX
SPIDI
LE
TDO
KEY_OUTPUT_5
KEY_OUTPUT_4
KEY_OUTPUT_3
KEY_OUTPUT_2
KEY_OUTPUT_1
KEY_OUTPUT_0
KEY_OUTPUT_7
KEY_OUTPUT_6
COM0
Answer_LED
Massage_LED
Line1_LED
Line2_LED
Inuse_LED
SPphone_LED
LINE2_CID
COM1
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
A11
LE
SO
SK
RDI
RFCLK
RSSI
RFCLK
TDO
LINE1_RX
LINE2_RX
LINE1_CID
KEY_INPUT_0
KEY_INPUT_1
KEY_INPUT_2
KEY_INPUT_3
TAM_FLASH_CS*
LINE1_ADC
LINE1_REF
LINE2_REF
LINE1_BELL_DET
LINE2_ADC
KEY_INPUT_3
LINE2_BELL_DET
RF Module
External antenna
Built-in antenna
1/4
NC: No Components
KX-TG8286RU SCHEMATIC DIAGRAM (1/4) (Base Unit_Main)
IC801
IC502
IC501
(a)
(b)
(c)
(d)
(e)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
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