Panasonic KX-TS620B Service Manual page 13

(1)
Q1
PC1 R6
C4
(2)
8
0 50V1
7
(3)
R4
6 HFO
Q2
4 1
120K
5
3 2
PC2
(4)
R131
10K
R130
1K
(5)
(6)
(7)
(8)
C120
J10P
(9)
(10)
(11)
(12)
(13)
R936 R937
(14)
TX
8.2K 8.2K
- Audio
- Tone
(15)
(16)
(17)
R910 C905
1.5M K0.01
(18)
(19)
Handset/Headset TX
- Audio
(20)
(21)
(22)
(23)
(24)
R994 10K
R995 10K
R996 1K
(25)
(26)
(27)
(28)
(29)
ROM-WRITE
GND UTX URX JTIO
All manuals and user guides at all-guides.com
C1
D3
D4 250V1.0
IC1
D5
1
OUT
VDD 0
R2
JP101 D6
2
HFI CONT
18K
3
LFI
Q3
R3
4
LFO
VSS
330K
R10
NC
PC3
C116
NC
Q108
R121
Q106
R123
C117
10K
K0.01
33
D102
Q105 Q110
D105
R106
47K
D306
R306
12
R303
C417
C421
J100P
C416
K0.01 Q401
K0.1
K1000P
C420
C423 R422
0 33
Handset/Headset RX
- Audio
- Tone
13
10V DC (OFF Hook)
0V DC (ON Hook)
CP1 D2 CP2
R1
6.8K
LED ON SUB PCB
LED804
Q103
Loop
current
C112 NC
Q107
Q104
R117
6.8K
Q101
Q109
Q102
R503 1M
C503 R501 180K
C501
K1000P
C504 R502 180K C502
K1000P
R504 1M
RX (ON Hook)
4.0V
- Caller ID
DC
IC305
R305
5 1
VOUT VIN
0
2
VSS
4 3
NC NC
4.0V
4.0V
IC304
DC
12
5 1
VOUT VIN
2
VSS
4 3
NC NC
4.0V
R420 47K
R416
C418 NC
R412 R411 C415
NC
68K 10K K0.1 Q402
C428
10V22
KX-TS620B/W SCHEMATIC DIAGRAM (MAIN)
KX-TS620B / KX-TS620W
Line Voltage
48V DC (ON Hook)
10V DC (OFF Hook)
C101
K680P
TP102
L1
L3
33uH
D7
D8
D9
D10
JJ101
L2
1 TIP
L4 POS101
33uH
C102
2 RING
K680P
TEL
JP102
TP101
JJ102
2 TIP
1 RING
DATA
K1500P/500V
K1500P/500V
DC1
CN301
D304
1 6.5V
IC303
2 GND
VOUT VCC
DC2
5.0V
+3.2V
Q301
Handset
TP401
CN401
R419
1 MIC(+)
L307
22K
2 MIC(-)
L308
TP402
3 SP(+)
L309
4 SP(-)
L310
TP403
CN402
2
3
4
5
L303
0
1
Headset Jack
Headset
NC: No Components