KX-TG6621RUB, KX-TG6621RUM, KX-TG6621UAB, KX-TG6621UAM, KX-TG6621CAB, KX-TG6621CAM, KX-TG6622RUB, KX-TG6622RUM, KX-TG6622CAB, KX-TGA661RUB, KX-TGA661RUM - Panasonic Telephone Service Manual Supplement (repair manual). Page 15

Read Panasonic KX-TG6621RUB / KX-TG6621RUM / KX-TG6621UAB / KX-TG6621UAM / KX-TG6621CAB / KX-TG6621CAM / KX-TG6622RUB / KX-TG6622RUM / KX-TG6622CAB / KX-TGA661RUB / KX-TGA661RUM Service Manual Supplement online

15
NC: No Components
KX-TGA661 SCHEMATIC DIAGRAM (Handset_Main) 
RX_RF
TX_RF
TX_AF
RX AF (Handset)
SP-phone RX/Beep
GND
PCB
RE1
CARBON_CL1
SP-PHONE_SPEAKER
+
-
VREFm
VREFm
C113
NC
C74
NC
C75
NC
C152
K1000p
*C71
10pF
*C70
10pF
GND
RECEIVER
+
-
GND
VREFm1
*C110
NC
*L72
NC
L9
VREFm1
*C83
NC
*L308
NC
*C82
NC
*C127
NC
*C86
NC
VREFm1
GND
VREFm1
*L74 NC
VREFm
*C185
NC
*CN4
Headset Jack
NC
1
4
2
3
5
*R306
NC
VREFm
GND
*C33
0
*R34
NC
GND
C76
K2200p
C77
K2200p
C79
D10p
C78
D10p
GND
AT1
1
2
RF-SHIELD
1
2
6
8
10
12
3
4
5
9
11
13
7
GND
R77
1
R76
1
ANT-Short
ANT-Short-GND
MIC AP1
1
2
C73
NC
C72
NC
D13
D14
D21
D22
GND
GND
GND
C822
10p
C820
0.5p
GND
GND
C804
2p
RF_TXp
GND
C811
10p
C826
1.1p
L809
1p
VBAT
GND
RF_TXn
C812
NC
DA801
1
2
3
GND
GND
R806
220
RXON
GND
GND
TXON
R807
220
C837
NC
GND
GND
GND
RF_RXp
C813
1p
C814
NC
RF_RXn
C803
1.5p
GND
GND
GND
C825
10p
*Q31
+1.8V
GND
*R32 NC
*R86
NC
C802
2p
C805
2.7p
C806
2.7p
C810
2.5p
LSRp
LSRn
Test Pattarn for Carbon
MICp
MICn
MICh
LSRp
HEADSET_DET
only TGA806
W 0.15mm
L 5.0mm
1st layer
W 0.125mm
L 7.6mm
Gap 0.125mm
1st layer
W 0.15mm
L 20mm
3rd layer
W 0.15mm
L 20+/-2mm
3rd layer
Pre-matching
W 0.15mm
L 5.0mm
1st layer
BPF
RF BLOCK
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)

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