Read Panasonic KX-HDV130RU / KX-HDV130RUB Service Manual online
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
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