Panasonic KX-TG6381LBB, Service Manual

Page: 71 / 102

71
KX-TG6381LBB/KX-TG6381LBS/KX-TG6382LBB/KX-TGA632LBB/KX-TGA632LBS
*CN431
HEADSET_JACK
1
4
2
3
5
SPP
SPM
MICM
MICP
VBAT1VBAT2
RX
TX
NC
C436
NC
C422
NC
C432
NC *R434
10k *R431
NC *R433
NC L511
100k R509
33k
R526
2.2M
R377
270k R543
10 R508
K0.1
C526
NC R505
NC R506
NC R507
PDN
NC
C543
K0.1
C544
NC
C509
2.2M
R379
K1.0 C503
C508
10uF 6.3V
C594 NC
L431 NC
NC
L432 NC
*L434
390 R417
1.0M
R376
1.0M
R378
K0.1
C379
K0.1
C377
NC *C433
SPPP SPPN
0 R435
*C435
NC
C417 10uF
6.3V
2.2k
RA402
1
2 3
4
D427
2
1
D426
2
1
D424
2
1
D423
2
1
MIC
1
2
1k
RA401
1
2 3
4
68
RA403
1
2 3
4
0.022
C414
0.022
C415
0.001
C416
D412
2
1
D413
2
1
NC
C413
NC
C411
NC
C412
NC
R532
K0.1
C531
NC
R354
BATTP
NC
C243
220k R374
NC
C354
2.0V_Reset
4
VSS
3
NC
1
OUT
2
VDD
47k R361
3.1V
1
VOUT
2
VDD
3
ON/*OFF
5
EXT
4
VSS
NC R531
NC
C352
NC L352
1.2
R370
BATTN
NC L351
NC
R375
120
R367
VSS2
CHG1
K0.1
C374
CHG2
47k R363
NC
C351
NC
D531
AK
33k
R369
K0.1
C362
VSS1
NC
*R437
NC *R436
5.6n
F301
Q531
B
C
E
Q361
B
E C
560
R362
3.3k R366
NC
C353
Q362
B
C
E
33
L412
33
L413
Q364
B
C
E
RECEIVER
1
+
2
-
SP_PHONE
1
+
2
-
D361
A K
MICM-1
MICP-1
NC
C364
K1.0
C421
K1.0
C371
K1.0 C372
2.7V
1
VIN
2
VSS
3
ONOFF
5
VOUT
4
NC
K0.1
C363
D364
L4.3V AK
10uH
L373
NC
*C434
K0.1
C366
NC
C365
10p
C427
10p
C426
330u
6.3
C361
1
G
2
S
3
K
4
A
5
NC
6
D
330u 6.3 C373
10k
R368
UART
Memo Memo
AVR, PDN_IC
DC/DC step-up circuit
IC371
IC372
IC373
Charging detection
Charging control circuit
Voice circuit
IC374
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(8)
(9)
(10)
(11)
SP phone TX
600 IN
30mVp-p
SP phone RX
(MIC Mute: ON)
1.8Vp-p/8
(Vol. Max)
Handset RX
(MIC Mute: ON)
590mVp-p/150
(Vol. Max)
Handset TX
600 IN
88mVp-p
TEST SIGNAL
FREQUENCY: 1kHz
3.1V 2.7V
3.0V 2.6~3.0V
KX-TGA632 SCHEMATIC DIAGRAM (Handset_Main)
NC: No Components