Panasonic KX-HDV130RU / KX-HDV130RUB Service Manual ▷ View online
9
KX-HDV130RU/KX-HDV130RUB
4.2.4.
Analog Circuit
1. Speaker phone call
Transmitting signal is input from microphone MIC1 (differential amplifier circuit)
input to IC302-pin D15, E15 A/D conver-
sion, Gain adjustment and echo cancel by built-in DSP of IC302.
Receiving signal input from IP Line
Receiving signal input from IP Line
Gain adjustment and D/A conversion by DSP of IC302 output from IC302-pinK15,
M14
output to Speaker.
2. Handset call
Transmitting signal is input from handset microphone
input to IC302-pin E14,F14 A/D conversion, Gain adjustment and
echo cancel by built-in DSP of IC302.
Receiving signal input from IP Line
Receiving signal input from IP Line
Gain adjustment and D/A conversion by DSP of IC302 IC302-pinF12,G12 output
to handset speaker.
From Pin K15(PAOUTP) of IC302
From Pin M14(PAOUTN) of IC302
To Pin E15(DIFFIN1P) of IC302
To Pin D15(DIFFIN1N) of IC302
D305
C378
C376
DGND
C375
DGND
DGND
SPP
C377
C379
DGND
D306
L301
L302
SPM
DGND
CL_SPM
C380
CL_SPP
L303
NC
L304
DGND
L312
L313
R325
AGND
R326
R324
R321
C370
C364
C365
R323
220
R322
AGND
C363
C366
C362
R320
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
MICBIAS
C367
C368
C371
C372
C369
D307
D308
CL-MICP
CL-MICM
MIC1
1
2
R327
R328
C320
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
C359
C360
AGND
AGND
AGND
AGND
L305
L306
C361
D303
D304
AGND
AGND
D313
D314
HS_SPP
HS_SPM
CL_HS_SPP
CL_HS_SPM
F12
AMPOUT0
G12
AMPOUT1
H12
AMPOUT2
J12
AMPOUT3
IC302
R315
AGND
C391
C392
AGND
AGND
AGND
D309
D310
L310
L311
AGND
AGND
AGND
AGND
AGND
AGND
MICBIAS
C353
R313
C352
R312
R311
C351
C356
R316
R317
C348
R314
C381
C382
C354
C357
C355
C358
D301
D302
HS_MICP
HS_MICM
AGND
AGND
CL_HS_MICP
CL_HS_MICM
AGND
AGND
F14
DIFFIN0P
E14
DIFFIN0N
NC
NC
NC
NC
NC
NC
NC
NC
NC
10
KX-HDV130RU/KX-HDV130RUB
3. Headset Call
Transmitting signal is input from headset microphone
input to IC302-pin H14 A/D conversion, Gain adjustment and echo
cancel by built-in DSP of IC302.
Receiving signal input from IP Line
Receiving signal input from IP Line
Gain adjustment and D/A conversion by DSP of IC302 IC302-pinH12 output to
headset speaker.
4.2.5.
Key Circuit
The key data is under the matrix control by IC302.
The key information output from KEY_OUT is input into KEY_IN, when the key is pressed.
The key information output from KEY_OUT is input into KEY_IN, when the key is pressed.
The HOOK key is independent from Key Scan Matrix and taken into the port singularly.
From Pin H12(AMPOUT2) of IC302
To Pin H14(SINGIN0) of IC302
C318
MICBIAS
AGND
C304
C315
CL_HEAD_OUT
R306
AGND
C316
HEAD_IN
R304
R302
CL_HEAD_IN
HEAD_OUT
C317
AGND
AGND
HEAD_IN_GND
AGND
HEAD_OUT_GND
AGND
R307
R308
D312
AGND
D315
AGND
NC
KEY_IN[0]
KEY_IN[1]
KEY_IN[2]
KEY_IN[3]
KEY_OUT[5]
KEY_IN[4]
KEY_OUT[4]
KEY_OUT[3]
KEY_OUT[3]
KEY_OUT[0]
KEY_OUT[1]
KEY_OUT[2]
KEY_IN[5]
3
1 2
1
1 2
TRANSFER
1 2
LINE1
1 2
HEADSET
1 2
8
1 2
9
1 2
SP-PHONE
1 2
LINE2
1 2
MESSAGE
1 2
6
1 2
7
1 2
*
1 2
MUTE
1 2
4
1 2
#
1 2
0
1 2
CANCEL
1 2
2
1 2
5
1 2
REDIAL
1 2
CONF
1 2
ENTER
1 2
SOFT1
1 2
SOFT2
1 2
SOFT3
1 2
RIGHT
1 2
VOL-
1 2
LEFT
1 2
UP
1 2
DOWN
1 2
VOL+
1 2
From IC302-Pin N9(KEY_COL5)
From IC302-Pin R8(KEY_COL4)
From IC302-Pin P8(KEY_COL3)
From IC302-Pin L8(KEY_COL2)
From IC302-Pin N8(KEY_COL1)
From IC302-Pin M8(KEY_COL0)
From IC302-Pin R8(KEY_COL4)
From IC302-Pin P8(KEY_COL3)
From IC302-Pin L8(KEY_COL2)
From IC302-Pin N8(KEY_COL1)
From IC302-Pin M8(KEY_COL0)
To IC302-Pin P6(KEY_ROW0)
To IC302-Pin N7(KEY_ROW1)
To IC302-Pin M7(KEY_ROW2)
To IC302-Pin P7(KEY_ROW3)
To IC302-Pin R7(KEY_ROW4)
To IC302-Pin P9(KEY_ROW5)
SW101
HOOK SW
1
2
3
4
5
6
DGND
To IC302-Pin J15
11
KX-HDV130RU/KX-HDV130RUB
4.2.6.
LED Circuit
The lighting of the LEDs is controlled by IC302.
All LEDs are static lighting system.
All LEDs are static lighting system.
RINGER_K
RINGER_A
L102
DGND
2
6
1
Q101
5
3
4
D103
Q102
5
3
4
DGND
2
6
1
DGND
Q103
5
3
4
2
6
1
VDD3.3V
D105
Q104
4.7k
47k
R189
R191
R193
DGND
Q105
4.7k
47k
DGND
Q106
4.7k
47k
DGND
DGND
Q108
4.7k
47k
DGND
Q107
4.7k
47k
VDD3.3V
DC_POWER
LED_VDD
RIGER_LED_K
RINGER_LED_A
D101
D102
D104
R188
R133
R134
R190
R192
Q301
4.7k
47k
DGND
BL_A
DGND
Q302
5
3
4
2
6
1
BL_K
R329
R330
LED_VDD
BLB_KBLB_A
D311
To IC302-Pin L6(EXTINT2)
To IC302-Pin N5(EXTINT0)
To IC302-Pin N6(KEY_ROW8)
To IC302-Pin L7(KEY_ROW9)
To IC302-Pin L5(KEY_COL6)
To IC302-Pin R11(PWM0)
12
KX-HDV130RU/KX-HDV130RUB
4.2.7.
Power Supply Circuit
PoE_
G
L2S
W
(2
por
t)
BBIC
LC
D
AG
N
D
DCI
N(6.
5V
)
SDRA
M
××
2
DCDC/ Dig
it
al
A
m
p
li
fi
lt
e
r
P
a
rt
A
n
a
lo
g
P
a
rt
Handset
S
p
eaker
Headset
RJ45
(P
C
)
AC
6.
5V
/5
00m
A
3
7
57V
VD
D
1
.8
V
VD
D
1
.2
V
DCDC
3.3V
VD
D
(3
.3
V
)
VD
D
(1
.8
V
)
SERI
A
L
F
L
A
S
H
KEY
RJ45
(LA
N
)
LE
D
(B
lue)
LCD B
a
ck Li
ght
LCD
MI
C
Tr
LE
D(Red)
PoE_
D
C
(8.
6V
)
Po
E
DCDC
+
-
V
DD3.
3V
FE
T
DC_P
OW
E
R
L
A
V
CC3
.3
V
3.
3V
VD
D
3
.3
V
L2_A
V1.8
V
L2_DC1.
8
V
L2
_
A
V
1
.8
V
L2
_
A
V
1
.8
V
R
DGND
RESET
IC
L
F1
L210
D209
D210
F201
F202
IC204
D213
D212
Q203
L206
T1
T2
JK1
JK2
IC202
L211
IC301
IC302
IC102/103
IC304
IC201
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