DOWNLOAD Panasonic KX-TG7851UAB / KX-TG7851UAH / KX-TG7861UAB / KX-TGA785RUB / KX-TGA785RUH Service Manual ↓ Size: 6.65 MB | Pages: 88 in PDF or view online for FREE

Model
KX-TG7851UAB KX-TG7851UAH KX-TG7861UAB KX-TGA785RUB KX-TGA785RUH
Pages
88
Size
6.65 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DIGITAL CORDLESS PHONE
File
kx-tg7851uab-kx-tg7851uah-kx-tg7861uab-kx-tga785ru.pdf
Date
PREV: Panasonic KX-TG7851RUH / KX-TG7851RUJ / KX-TG7851RUR / KX-TG7852RU1 / KX-TG7861RUH / KX-TG7861RUW / KX-TG7862RU2 / KX-TGA785RUB / KX-TGA785RUH / KX-TGA785RUJ / KX-TGA785RUR / KX-TGA785RUW Service Manual

Panasonic KX-TG7851UAB / KX-TG7851UAH / KX-TG7861UAB / KX-TGA785RUB / KX-TGA785RUH Service Manual ▷ View online

69
KX-TG7851UAB/KX-TG7851UAH/KX-TG7861UAB/KX-TGA785RUB/KX-TGA785RUH
Memo
70
KX-TG7851UAB/KX-TG7851UAH/KX-TG7861UAB/KX-TGA785RUB/KX-TGA785RUH
13.6. Handset
Rx RF
Tx RF
0.80V
0V
800mVp-p
SHORT
LCD_RESET
STB_D
STB_E
LCD_CS
STB_B
STB_C
LCD_SCL
KIN_4
KIN_
3
KIN_2
KIN_1
LCD_CD
KEY_LED
LCD_SID
EEP_WP
STB_F
STB_E
KIN_4
KIN_3
CHARGE_CTRL
CHARGE_DET
STB_C
STB_D
KIN_1
KIN_1
STB_B
STB_A
STB_F
SOCp
KIN_2
KIN_2
KEY_LED
LCD_LED0
SOCn
EEP_WP
GND
R61
1k
R60
NC
C69
K0.1u
GND
+1.8V
RF_TXn
RF_TXp
RF_RXn
RF_RXp
C44
K0.1u
R20
F56k
GND
C4
3
D10p
GND
C15
39p
VBAT
GND
GND
VBAT
+1.8V
C45
K0.1u
GND
C40
K0.1u
F1
2.5A
CHG-
GND
GND
C6
K0.1u
R7
820
R9
30k
Q3
R2
30k
C19
K1000p
R6
10k
GND
C866
K0.1u
STM
*Q6
GND
*R15
1.5k
CP4V
C5
K0.1u
CP2.8V
C1
220u
6.3V
GND
C47
1u
R3
NC
GND
X1
10.368MHz
JTAG
Q9
CHG+
IC1
3
RFP1
4
RFP0
5
REF_RES
6
AVS_XTAL
7
XTAL2
8
XTAL1
9
AVD_XTAL
10
RF_SUPPLY1
11
P
3
_4/PARADET
54
VDD1
55
P2_7/BXTAL
76
P2_2/PCM_CLK/CLK100
77
WLED_CUR_0
78
WLED_CUR_1
79
P2_1/ECZ2/PWM1/LED4
80
P2_0/ECZ1/PWM0/LED3
81
LDORF_CTRL
82
VDD3
83
RFP0n
84
RF_SUPPLY2
1
RF_RXn
2
RF_RXp
12
P
3
_5/RINGOUT/RINGING
1
3
P
3
_6/RINGn
14
P
3
_7/RINGp
56
P1_5/INT5/RDI/VDDE
57
P1_4/INT4/TDOD
58
P1_
3
/INT
3
/SIO
74
P2_4/SCL1/PCM_DO/DP3
75
P2_3/SDA1/PCM_DI/DP2
85
RF_SUPPLY_PA
86
RF_TXn
87
RF_TXp
59
P1_2/INT2/SK
88
RFP2
89
GND
60
P1_1/INT1/LE
61
P2_6/WTF_IN
62
P0_7/SPI_DI/PWM1
6
3
P0_6/SPI_DO
64
P0_5/SPI_CLK
65
P0_4/SPI_EN
66
P0_
3
/SCL2/URX2
67
P0_2/SDA2/UTX2
68
P0_1/URX/PWM0
69
P0_0/UTX
70
VDD2
71
*RSTn
72
JTAG
73
P2_5/PCM_FSC/SF
RA5
3.3k
RST
BATT+
BATT-
UTX
URX
GND
VBAT
CN5
1
LED+
CP4V
C115
K1u
Q2
Q4
UP
RIGHT
DOWN
LEFT
2
7
6
0
TALK
5
SHARP
9
1
8
ECO/R
SOFT_A
SFK
AST
3
SP
SOFT_C
4
IC3
16k
1
A0
2
A1
6
SCL
7
WP
3
A2
8
VCC
4
GND
5
SDA
OJ4
CKM
R8
4.3
(3216)
C46
1p
R45
0.1
*LED
2
*LED6
*LED1
*LED5
*LED4
*LED
3
*RA2
560
1
2
3
45
6
7
8
*RA
3
560
1
2
3
4
TO RF BLOCK
To Charge 
   Terminal
To Battery
(TGA68x = Amber)
KEY B/L LED
R60
(TGA785 = Amber)
R45
@RL06JTNR10
1/2
(1)
(2)
(4)
(3)
!
71
KX-TG7851UAB/KX-TG7851UAH/KX-TG7861UAB/KX-TGA785RUB/KX-TGA785RUH
KX-TGA785RU SCHEMATIC DIAGRAM (Handset)
Rx AF (Handset)
Tx AF
SP-Phone RX / Beep
Rx RF
Tx RF
SHORT
SHORT
SHORT
SHORT
SHORT
SHORT
CHARGE_DET
CHARGE_CTRL
STB_A
SOCn
SOCp
LCD_LED0
LCD_SCL
LCD_SID
LCD_CD
LCD_CS
LCD_RESET
CARBON_CL1
C73
100p
C72
100p
GND
C11
K0.1u
C13
K0.1u
GND
+1.8V
L4
NC
C30
K1u
GNDA
GND
GND
GND
R23
1k
GNDA
GND
C99
NC
C98
NC
GND GND
1.8V
MIC
AP1
Q1
D13
NC
D14
NC
L3
NC
GND
GND
C22
K1u
C190
K0.1u
HAK_CL1
GND
GND
GND
GND
D21
NC
D22
NC
CP3V
GND
GND
C53
K2.2u
C55
D10p
D3
CP4V
GND
CP2.8V
GND
C41
K0.1u
CP3V
R41
33k
GND
CP3V
SP-PHONE_SPEAKER
+
-
RECEIVER
+
-
C191
K1u
C51
K1u
C59
K1u
C52
K1u
C29
K1u
C56
K1u
R1
10k
C12
K2.2u
GND
25
P3_3/ADC0
26
P1_0/INT0/ADC1
27
SOCp
28
SOCn
29
DC_SENSE
30
DC_I
31
DC_CTRL
32
VBAT
33
CHARGE_CTRL
47
QSPI_IO2
48
QSPI_IO1
49
QSPI_CS
50
VDDIO_QSPI
51
QSPI_IO
3
52
QSPI_SCK
5
3
QSPI_IO0
23
VDD/AVD
24
LDO_CTRL
34
P1_7/CHARGE
35
P3_1/DP1/PAOUTp
36
VDDPA
45
CP_VOUT2
46
P1_6/PON
15
P
3
_2/CIDINp
37
P3_0/DP0/PAOUTn
16
VREFp
17
CIDINn/MICp
18
CIDOUT/MICn
19
MICh
20
VREFm
21
LSRp
22
LSRn
38
CP_VBAT1
39
CP_C1x
40
CP_C2x
41
CP_C1y
42
CP_VBAT2
43
CP_C2y
44
CP_VOUT1
VBAT
VBAT
CN5
6
VGL
CN5
1
3
VDDIO
C110
16V 1u
CN5
10
/CS
GND
CN5
3
AVDD
CN5
5
C11B
CN5
12
GND
CN5
2
LED-
+1.8V
CN5
14
VDD
CN5
4
C11A
CN5
9
RS/A0
CN5
8
SDA/SDI
CN5
11
/RESET
CN5
7
SCL/SCK
CP3V
C112
K1u
C111
K1u
C113
K1u
C114
K1u
OFF
RA7
820
1
2
3
4
RF_TXp
VBAT
GND
C859
10p
C801
10p
RF_RXp
GND
GND
RF_RXn
ANT-Short
RF_TXn
GND
ANT1_TP
GND
ANT-Short-GND
OJ1
OJ2
OJ3
OJ5
OJ6
OJ7
CP3V
CP4V
CP2.8V
POWER
IC4
VJ1
16M
1
*CS
2 SO/SIO1
6
SCLK
7
NC/SIO3
3
*WP/SIO2
8
VCC
4
GND
5
SI/SIO0
ZA1
1
2
6
7
9
11
3
4
8
10
5
2
1
C860 2.2p
C861 2.2p
C
3
6
3
9p
C70
68p
C71
68p
C78 2200p
C79
2200p
C862 1.5p
R76
1
R77
1
Test Pattarn for Carbon
MICn
(MAX500mA)
Test Pattarn for Pattern
RECEIVER+
RECEIVER-
MIC_POWER
MICp
MIC
C51
4.7u
 !?
C
0.1u
 ?
1.45inc TFT Colour LCD
TX-balun
SL
W=0.3mm
L=39.0mm
Pre-matching
4layer GND
SL
W=0.3mm
L=6.95mm
C=3.6pF
10.5mm2
open-stub
SL
W1=0.2mm
L1=3.0mm(
-0.3mm)
W2=0.7mm
L2=4.3mm
RF BLOCK
*open-stub
SLx2
W1=0.2mm
L1=3.3mm
W2=0.7mm
L2=5.0mm
open-stub
SL
W=0.6mm
L=20.0mm
RX-balun
MSL
W=0.175mm
L=3.6mm
S=0.125mm
open-stub
SL
W=2.9mm
L=3.8mm
open-stub
SL
W=2.2mm
L=5.0mm
open-stub
SL
W=2.0mm
L=10.8mm
SL
W=0.2mm
L=20.0mm
SL
W=0.3mm
L=6.5mm
LPF
MSL
W=0.25mm
L=5mm
MSL
W=0.25mm
L=5mm
MSL
W=0.25mm
L=2mm
MSL
W=0.25mm
L=2mm
50 ohm line
L=4mm
50 ohm line
Totlal L=4mm
2/2
(1)
(2)
(4)
(3)
IC1
72
KX-TG7851UAB/KX-TG7851UAH/KX-TG7861UAB/KX-TGA785RUB/KX-TGA785RUH
Memo
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