Read Panasonic KX-TG2560B / KX-TG2560S Service Manual online
KX-TG2560B/KX-TG2560S
57
VR202
C233
IC201
25
MIC IN2
25
MIC IN2
R229
RF CIRCUIT
AF
AF
SPEAKER
HEADSET JACK
CN201
SP-AMP
SP-MUTE
SP SW
SP=L
HS=H
HS=H
IC201
53
56
9
3
5
10
11
21
22
EXP
EVOL
CPU
Q206
R222
R226
( )
5
4
3
2
1
4
3
2
1
R231
SP1
SP2
MIC2
MIC1
GND
R216
R208
VR201
RF-CIRCUIT MOD
L: MIC IN1
H: MIC IN2
H: MIC IN2
CPU TX DATA
MIC
IC201
24
25
25
28
23
22
19
18
17
9 SPSW
COMPRESSER
MIC
AMP
AMP
MIC IN1
MIC IN2
MIC IN2
LPF
C259
CN201
Q206
( )
R222
R226
5
4
3
2
1
4
3
2
1
R231
SP1
SP2
MIC2
MIC1
GND
R216
5. Sending Signal
The audio signal from the microphone is amplified by Mic Amp, compressor, and 3 kHz LPF built into IC201. It is then mixed with
the TX DATA signal from the CPU, the FM modulation is adjusted by VR201, and input to the modulator in the RF Circuit.
the TX DATA signal from the CPU, the FM modulation is adjusted by VR201, and input to the modulator in the RF Circuit.
Circuit Diagram
Circuit Diagram
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