Sign In
Upload
Download
Table of Contents
Contents
Add to my manuals
Delete from my manuals
Share
URL of this page:
HTML Link:
Bookmark this page
Add
Manual will be automatically added to "My Manuals"
Print this page
×
Bookmark added
×
Added to my manuals
Manuals
Brands
Panasonic Manuals
Answering Machine
KX-TG8421BX
Service manual
Schematic Diagram (Handset) - Panasonic KX-TG8421BX Service Manual
Digital cordless answering system
Hide thumbs
Also See for KX-TG8421BX
:
Operating instructions manual
(52 pages)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Table Of Contents
30
page
of
30
Go
/
30
Contents
Table of Contents
Bookmarks
Table of Contents
Advertisement
KX-TG8421BX/KX-TGA840BX
2.4.
Schematic Diagram (Handset)
Charge Current
F1
BATT+
5.6n
To Battery
C150
L8
BATT-
(
)
R45
C35
0.1
GND
L4
CHG(+)
(
)
C5
K0.1u
To Charge
R30
D8
C147
27k
Terminal
L5
CHG(-)
(
)
GND
GND
GND_0
GND
+1.8V
R64
R65
10k
RA61
2
3
UTX
URX
1
4
220
GND
R63
GND
JTAG
100
COL0
COL1
COL2
COL3
COL4
COL5
BATTERY
BELL LED
(Amber)
LED12
GND
C139
GND
NC: No Components
BAT
BATTERY
C1 CP1
6.3V
C3
C4
330u
GND
GND
GND
C15
R7
R2
1.2k
3.9k
D7
Q4
R6
R4
R31
1k
Q9
C121
GND
GND
R66
1k
UTX
TO RF BLOCK
URX
ANT2
PON
PSEL
JTAG
VDD_PADRV
TXp
TXn
TXON
RF_RXp
RF_RXn
RXON
ANT1
SW1
8
1
4
2
5
3
6
7
GND_0
CP+4.0V
KEY BACKLIT
(Blue)
LED1
C138
R300
270
R301
R302
R303
270
270
270
Q7
GND
+1.8V
C44
K0.1u
61
R225
62
LCD_CSB
0
63
64
65
TEST
LCD_RESET
66
67
BELL_LED
68
69
C45
C36
K0.1u
70
D10p
71
C46
GND
72
73
74
75
TX _RF
76
77
78
79
80
BATTERY
To PA
81
C182
GND
RX _RF
GND
250mVp-p
0.75V
0V
CP+4.0V
R71
C29
82
D10p
W_LED+
LCD BACKLIT
GND
WHITE LED
ON LCD UNIT
R305
270
W_LED-
R304
270
GND
16
BATTERY
R330
1M
Q11
Q12
C331
K1u
R331
27k
C332
GND
K1u
R332
27k
GND
GND
GND
X_CLK
R20
2.5V 4.0V
10
CP+2.5V
GND
C40
k0.1u
GND
RSTn
JTAG
P2_5/PCM_FSC/SF
P2_4/SCL1/PCM_DO/DP3
P2_3/SDA1/PCM_DI/DP2
*IC1
P2_2/PCM_CLK/CLK100
P2_1/ECZ2/PWM1/LED4
P2_0/ECZ1/PWM0/LED3
VDD2
LDORF_CTRL
GND
RF_SUPPLY2
RFP0n
RFP4
RFP3
VDD_PADR
VSS_PADR1
RF_TXp
RINGOUT/RINGING/P3_5
RF_TXn
VSS_PADR2
RFP2
C41
(
)
3
1
2
R215
X1
C13
GND
0
10.368M
K0.1u
CP+2.5V
R50
3.3k
C101
C100
K1u
K1u
16V
25V
White
C27
K1u
GND
To Color LCD Unit
Q2
D1
(1)
GND
C2 CP2
6.3V
330u
CP+4.0V
CP2.5V
CP4.0V
C53
K10u
(2)
C52
C51
K10u
K1u
(3)
C54
C55
D10p
D10p
(4)
C38
(
)
GND
1
2
S1
GND
R12
0
C49
K1u
40
VBAT2
39
CP_C1y
C50
38
CP_C2x
K1u
37
CP_C1x
36
VBAT1
(5)
35
PAOUTn/P3_0
(6)
34
VDDPA
33
PAOUTp/P3_1
(7)
CHARGE
32
P1_7/CHARGE
CHARGE_CTRL
31
CHARGE_CTRL
SOCn
30
SOCn
SOCp
29
SOCp
(8)
28
NTC/ADC2
27
ADC1/INT0/P1_0
COL0
26
ADC0/P3_3
COL1
25
PARADET/P3_4
COL2
24
COL3
23
RINGn/P3_6
COL4
22
RINGp/P3_7
21
CIDINp/VREFp
RA2
1k
VREFm
C12
K10u
R22
C14
3.3k
K0.01u
(9)
C17
(
)
C7
D10p
D10p
VREFm
C18
(10)
C97
RA4
D10p
C96
3.3k
D10p
(11)
(12)
C11
K0.1u
R27
820
R28
820
(13)
(14)
R54
10k
R53
R51
R52
3.3k
470
220
R55
1k
C102
K1u
16V
Table of
Contents
Previous
Page
Next
Page
1
...
13
14
15
16
17
18
19
20
Advertisement
Table of Contents
Related Manuals for Panasonic KX-TG8421BX
Cordless Telephone Panasonic KX-TG8411BX Operating Instructions Manual
Panasonic digital cordless phone/answering system (52 pages)
Answering Machine PANASONIC KX-TG8421E Operating Instructions Manual
Digital cordless answering system (60 pages)
Answering Machine Panasonic KX-TG8421FXB Service Manual
Digital cordless answering system (105 pages)
Answering Machine Panasonic KX-TG8421EB Service Manual
Digital cordless answering system (110 pages)
Answering Machine Panasonic KX-TG8231 Operating Instructions Manual
Expandable digital cordless answering system with 2 handsets (16 pages)
Answering Machine PANASONIC KX-TG8321E Operating Instructions Manual
Digital cordless answering system (64 pages)
Answering Machine PANASONIC KX-TG8280FX Operating Instructions Manual
2line digital cordless answering system (60 pages)
Answering Machine Panasonic KX-TG8280FX Quick Manual
Digital cordless answering system (8 pages)
Answering Machine Panasonic KX-TG8563AZ Operating Instructions Manual
Digital cordless answering system (60 pages)
Answering Machine Panasonic KX-TG8162AL Operating Instructions Manual
Digital cordless answering system (56 pages)
Answering Machine Panasonic KX-TG8622AZ Operating Instructions Manual
Digital cordless answering system with tft colour display (72 pages)
Answering Machine Panasonic KX-TG8622AZ Operating Instructions Manual
(26 pages)
Answering Machine Panasonic KX-TG8032AL Operating Instructions Manual
Digital cordless answering system (60 pages)
Answering Machine panasonic KX-TG8032AL Operating Instructions Manual
Digital cordless answering system (60 pages)
Answering Machine Panasonic KX-TG8321AL Operating Instructions Manual
Digital cordless answering system (60 pages)
Answering Machine Panasonic KX-TG8522AL Operating Instructions Manual
(56 pages)
Related Content for Panasonic KX-TG8421BX
KX-TCD735AXM Schematic Diagram (Handset)
Panasonic KX-TCD735AXM
KX-TG1233BXT Handset (Schematic Diagram (Handset))
Panasonic KX-TG1233BXT
KX-TG2583B Schematic Diagram (Handset)
Panasonic KX-TG2583B
KX-TG2360JXS Handset (Schematic Diagram (Handset))
Panasonic KX-TG2360JXS
KX-TG4221N Handset (Schematic Diagram (Handset_Main))
Panasonic KX-TG4221N
KX-TG1843ALS Handset (Schematic Diagram (Handset))
Panasonic KX-TG1843ALS
KX-TG8021BXS Schematic Diagram (Handset)
Panasonic KX-TG8021BXS
KX-TG2431W Handset (Schematic Diagram (Handset_Main))
Panasonic KX-TG2431W
KX-TG7341BXM Schematic Diagram (Handset)
Panasonic KX-TG7341BXM
KX-TG1283JXS Handset (Schematic Diagram (Handset))
Panasonic KX-TG1283JXS
KX-TG8041RUM Schematic Diagram (Handset)
Panasonic KX-TG8041RUM
KX-TG5631S Handset (Schematic Diagram (Handset_Main))
Panasonic KX-TG5631S
KX-TCD346UAS Handset (Schematic Diagram (Handset))
Panasonic KX-TCD346UAS
KX-TG5521RUB Schematic Diagram (Handset)
Panasonic KX-TG5521RUB
KX-TC1872B Schematic Diagram (Handset)
Panasonic KX-TC1872B
KX-TG6841B Handset (Schematic Diagram (Handset_Main))
Panasonic KX-TG6841B
This manual is also suitable for:
Kx-tga840bx
Table of Contents
Print
Rename the bookmark
Delete bookmark?
Delete from my manuals?
Login
Sign In
OR
Sign in with Facebook
Sign in with Google
Upload manual
Upload from disk
Upload from URL