Read Panasonic KX-TG8521RUB / KX-TG8522RUB / KX-TGA850RUB Service Manual online
73
KX-TG8521RUB/KX-TG8522RUB/KX-TGA850RUB
HEADSET_DET
RECEIVER
+
-
C71
10p
C113
D10p
D10p
C97
D10p
C96
D10p
D3
NC
D4
NC
C74
NC
GND GND
C12
K10u
D21
D22
GND
GND
R309
NC
R310
NC
C152
K1000p
GND
ANT_TP
GND
R73 33
R74 33
RXON
RXp
TXON
TXp
TXn
RXn
C70
10p
C6
NC
DA801
1
2
3
MIC AP1
1
2
SP-PHONE_SPEAKER
+
-
C185
K1000p
L73
( )
C83
D10p
L72
C127
K1000p
C82
K470p
C110
K1000p
L71
( )
R308
C108
NC
CN4
Headset Jack
1
4
2
3
3
5
R306 100
L74
10
R22
3.3k
R25
2.2k
L9
C8
D10P
C9
12p
R1
NC
GND
GND
GNDA
GNDA
GNDA
GNDA
GNDA1 GNDA1 GNDA1
GNDA1
GNDA
GNDA
GNDA
GNDA
R27
2.2k
R24
390
R10
NC
R11
0
GNDA
D14
D13
GNDA
GNDA
GNDA
R807
470
R806
470
R32
100k
GND
VBAT
SPP
SPM
MIC+
MIC-
R34
390
GNDA
R28
2.2k
GND
GND
GND
GND
GND
C75
NC
GND
GND
GND
GND
GND
C820
1.8p
C863
1.8p
GND
GND
GND
GND
C859
2p
C895
1.3p
GND
GND
GND GND
GND
GND
GND
C814
NC
ZA1
C98
( )
C99
( )
GND
GND
C896
1.8p
C805
2.4p
C806
2.4p
C810
2.5p
C813
1.6p
C812
8.2n
L809
1p
C811
100p
C822
10p
C826
10p
C825
10p
C897
24p
C37
10u
C86
22uF
X1
13.824M
L13
180n
L14
NC
GND
C898
0.7p
L3
C14
0.039u
C72
10p
C73
10p
MIC POWER
RECEIVER+
RECEIVER-
HEADSET_DET
Headset_MIC+
Speakerphone_SP+
Speakerphone_SP-
MIC+
MIC-
Headset_RECEIVER
KX-TGA850 SCHEMATIC DIAGRAM (Handset_Main)
NC: No Components
(1)
(2)
(3)
(4)
(6)
(5)
(8)
(9)
(10)
(11)
(12)
(7)
RX_RF
TX_RF
TX _AF
Handset RX
Handset TX
RX_AF
(Handset)
(Handset)
Sp-phone RX/Beep
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