92
KX-TG8421FXB/KX-TG8421FXN/KX-TGA840FXB/KX-TGA840FXN
14.3. Circuit Board (Handset)
14.3.1. Component View
KX-TGA840 CIRCUIT BOARD (Handset_Main (Component View))
A
PbF
PNLB1104Z
KX-TGA840XX EU
C138
C71
C152
C70
RECEIVER
C139
SPEAKER
C29
C802
C72
C813
C811
C804
C73
C147
C121
C5
C3
F1
C76 C77
C113
C54
C40
C44
C834
C814
C863 C864
C43
C47
C83
C185
C35
C39
C110
4
5
1
X_CLK
POWER
1.8V
C128
C2
C1
C172
CP4.0V
CP2.5V
C111
C33
C6
C7
C837
C14
C13
C38
C332
C51
C55
C53
C52
C49
R71
R209
R208
R63
R66
R64
R225
R802
R805
R6
R74
R73
R31
R7
R30
R4
R8
R45
R300
R303
R301
R302
R305
R12
R42
R41
R40
R32
R33
R25
R203
R807
R22
R28
R332
R330
R331
R306
R304
R20
R307
L804
L802
L3
L9
L72
L73
L74
L71
IC1
TEST
JTAG
RA61
BATT-
BATT+
RA4
D21
D22
D14 D13
BLK
RED
BLK
RED
D8
D7
D4
D3
Q4
Q7
Q11
Q12
Q2
C45
C36
C46
C860
C182
C819
C825
C827
C809
C810
C805
C808
C861
C812
C859
C862
C803
C806
CN4
C74
C75
C4
C15
C150
C188
C97
C96
C822
C826
C41
X1
C820
C18
C11
C10
C12
C16
C331
C184
C17
C48
C50
C109
C82
3
2
1
14
85
1
C108
C86
C127
R65
R808
R801
R806
R803
R804
SP-PHONE_SPEAKER
R310
R309
R2
R215
R27
R152
R34
R308
R100
L801
L803
L5
L4
L8
IC801
IC3
RA1
RA2
D
A801
D1
Q9
UTX
URX
GND
CHG (-)
CHG (+)
BAT
MIC-
MIC+
BATT+
CHG (+)
MIC+
GND
BAT
BATT-
UTX
URX
RCV-
RCV+
CHG (-)
JIG
X_CLK
(10.368MHZ)
SP+
MIC-
SP-
}
Summary of Contents for KX-TG8421FXB
Page 2: ...2 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN ...
Page 14: ...14 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN 4 6 Signal Route ...
Page 15: ...15 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN ...
Page 24: ...24 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN 7 6 Troubleshooting ...
Page 25: ...25 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN Cross Rreference For Service Hint P 28 ...
Page 26: ...26 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN ...
Page 27: ...27 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN ...
Page 31: ...31 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN 8 1 2 Handset ...
Page 57: ...57 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN ...
Page 58: ...58 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN 10 1 2 Handset ...
Page 59: ...59 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN 10 1 3 Charger Unit ...
Page 60: ...60 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN 10 2 How to Replace the Handset LCD ...
Page 85: ...85 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN Memo ...
Page 99: ...99 KX TG8421FXB KX TG8421FXN KX TGA840FXB KX TGA840FXN 15 4 2 KX TGA840FXB FXN ...