Panasonic KX-TG6071BXM Service Manual page 89

(1)
(2)
R525 1k
(3)
(4)
(5)
C508
6.3V 10uF
R508 10
C503 K1.0
(6)
C594 NC
C526
K0.1
R505
R506
R507
R509
UART
(7)
(8)
(9)
(10)
EEPROM
Writing
protection TR
R543 270k
E
B
C
Q543
(11)
(12)
(13)
(14)
(15)
(16)
(17)
R431 10k
R433 1k
R417 390
PDN
NC
NC
NC
100k
RX
TX
DSP regulator
3.6~4.2V
3.0V
IC371
3.0V_REG
3 2
VIN
VOUT
VSS
1
VBAT2 VBAT1
R370
BATTP
BATTM
VSS2
Voice circuit
Headset detection TR
L431
Q431
L432
C
B
E
L434
C435
10uF
6.3V
R435 NC
C433 K6800P
R434 2.2k C414
K6800P
RA401
3 2
4 1
1k
C415
RA402
K6800P
3 2
4 1
2.2k
Reset circuit
Q521
R522 C522
C
B
E
22k K0.1
Charging control circuit
R366 3.3k
D361
1.2
2 1
Q361
R361 47k
VSS1
R363
C
C
B
B
Q362
Q363
E
E
KX-TGA601 SCHEMATIC DIAGRAM (Handset_Main)
89
TEST SIGNAL
FREQUENCY: 1kHz
SPPP SPPN
SP phone RX
L427 NC
(MIC Mute: ON)
+
1.8Vp-p/8
-
(Vol. Max)
L426 NC
Rear speaker
Headset TX
-37dBm/600
50mVp-p
CN431
NC
1
NC
2
3
Headset jack
4
5
NC
HEADSET_JACK
Headset RX
170mVp-p/150
(Vol. Max)
SPP
Handset receiver
Handset RX
RA403
(MIC Mute: ON)
4 1
+
3 2
-
590mVp-p/150
68
(Vol. Max)
SPM
MICM
2
Microphone
1
MIC
Handset TX
MICP
-33dBm/600
88mVp-p
SP phone TX
-43dBm/600
30mVp-p
IC521
1 4
OUT
VSS
2 3
VDD
NC
3.2V_Reset
CHG1
L351 NC
CHG2
L352 NC
47k
Q531
C
R531 NC
B
E
Charging detection circuit
NC: No Components
KX-TG6071BXM/KX-TGA601BXM
IN
IN
IN