Read Panasonic KX-HDV230RU Service Manual online
14
KX-HDV230 Series
4.2.9.
ASIC
IC101 and IC503(ASIC) are connected by an I2C communication.
EHS terminals are controlled by IC503 (ASIC).
EHS terminals are controlled by IC503 (ASIC).
*This ASIC supports Plantronics and Jabra EHS.
Plantronics control signals : PSB IN/OUT
Jabra control signals : JABRA_UTX/URX
Jabra control signals : JABRA_UTX/URX
The audio signals are exchanged with IC101 through HEADSET JACK.
4.2.10.
Power Supply Circuit
C509
3.3V
R517
5V
L501
R516
R514
C503
C506
3.3V
Q501
R536
Q502
4.7k
10k
R531
Q507
DG
R504
C510
R505
DG
DG
JABRA_UTX
JABRA_URX
3.3V
3.3V
DG
DG
DG
DG
PC503
1
4
6
5
3
PC504
1
4
6
5
3
PC502
1
2
3
4
PC501
1
2
3
4
IC503
1
INTOUT
2
RESET
14
PSBIN
15
PSBOUT
3
SDL
16
VCC
4
SDA
13
EHS_DET/GPIO3
5
CLKIN
12
UARTTX1
6
CLKOUT/GPIO2
11
UARTRX1
7
TEST
10
GPIO0/UARTTX2
8
GND
9
GPIO1/UARTRX2
DG
DG
ASIC_INT
ASIC_RST
I2C_SCLK
I2C_SDA
ASIC_CLK
R511
R512
DG
ASIC_3.3V
ASIC_3.3V
R513
R518
R510
R506
DG
ASIC_3.3V
R501
R503
PSB_OUT
PSB_IN
EHS_DET
IC101
U19
R7
R12
R8
U7
<- JK502
(EHS Connector)
RJ45
(LAN)
AC Adapter
12V/1.5A
10.6V
12V
5V
LDO
DCDC
1.5V
VDD33V
AVCC33V
L2SW_10V
L2_VDD10V
VDDIO_DDR
Analog section
DCDC/Digital
Amplifier
Analog
DVF99
VDD18V
VDD12V
L2_VDDPLL10V
DCDC
1.0V
L2_AVDD10V
L2SW_33V
L2_DVDD
L2_AVDD
L2SW
EHS
LCD(Self)
Headset
KEY
Backlight(MainLCD)
LCD(Main)
ASIC
Handset
MIC
Speaker
RJ45
(PC)
PoE_G
DG
AG
DCDC
5V
Termination
VCC5V
45
57V
3.3V
PoE
DCDC
LED
Backlight(SelfLCD)
DCIN
1.0V
DSS
DCDC
3.3V
Digital section
NAND
ASIC
DDR3
Termination
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