DOWNLOAD Panasonic KX-HDV230RU / KX-HDV230RUB Service Manual ↓ Size: 6.5 MB | Pages: 74 in PDF or view online for FREE

Model
KX-HDV230RU KX-HDV230RUB
Pages
74
Size
6.5 MB
Type
PDF
Document
Service Manual / Supplement
Brand
Device
PBX / SIP PHONE
File
kx-hdv230ru-kx-hdv230rub.pdf
Date
PREV: Panasonic KX-TDA6382X / KX-TDA6382SX (serv.man2) Service Manual / Supplement

Panasonic KX-HDV230RU / KX-HDV230RUB Service Manual / Supplement ▷ View online

9
KX-HDV230 Series 
4.2.3.
Reset Circuit
Reset Signal is output from IC401 and input into IC101-pin V12.
PDN is DC power down detect.
Detect  the AC and PoE power down signal. 
PDN
003:6D
R425
3.3V
C446
IC401
4
OUT
3
CD
1
VSS
2
VDD
C445
DG
DG
PWR_RST
C459
R426
DG
V12
RSTN
IC101
C329
PDN
R333
DG
DG
R334
F301
32
3
D301
DG
D302
C322
C318
DCIN
PoE_DC
D304
12V
12V
DC_JKP
DC_JKM
L306
1
4
3
2
from PoE 
from AC Adaptor 
10
KX-HDV230 Series 
4.2.4.
Ethernet Circuit
The IC201 is used for the Gigabit Ethernet interface.
It is connected from (IC201) to the Ethernet port(JK201 and JK202) through a transformer and so is isolated.
Also, LAN port (JK201) gets power from the Ethernet line For PoE (Power over Ethernet) as shown below.
It is connected between (IC201) and the BBIC(IC101) by high-speed bus called RGMII(Reduced Gigabit Media Independent Inter-
face) bus operating with 25MHz.
PC port
LAN port
<- IC201
PoE Circuit
<- IC101
RGMII I/F
MDI_LB_P
MDI_LD_P
MDI_LD_N
MDI_LC_P
MDI_LC_N
MDI_LA_P
ether_lan[7]
ether_lan[8]
ether_lan[5]
ether_lan[4]
ether_lan[3]
ether_lan[6]
ether_lan[1]
ether_lan[2]
ether_pc[1]
ether_pc[2]
ether_pc[6]
ether_pc[4]
ether_pc[5]
ether_pc[7]
ether_pc[8]
ether_pc[3]
MDI_LB_N
MDI_LA_N
MDI_PD_N
MDI_PD_P
MDI_PC_P
MDI_PC_N
MDI_PB_N
MDI_PB_P
MDI_PA_N
MDI_PA_P
R252
C283
R256
C285
PoE-AN
PoE-AP
R251
C284
R253
R254
R249
C290
C286
C287
R250
R255
DG
PoE-BP
PoE-BN
DG
JK201
8
7
6
5
4
3
1
2
JK202
8
7
6
5
4
3
1
2
DG
DG
T201
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
9
9
16
16
10
10
15
15
11
11
12
12
13
13
14
14
T202
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
9
9
16
16
10
10
15
15
11
11
12
12
13
13
14
14
L213
2
3
4
1
L214
2
3
4
1
L215
2
3
4
1
L216
2
3
4
1
C294
C295
D203
LAN_PC1
LAN_WAN1
MDI_LD_N
MDI_LD_P
MDI_LC_N
MDI_LC_P
MDI_LB_N
MDI_LB_P
MDI_LA_N
MDI_LA_P
MDI_PD_N
MDI_PD_P
MDI_PC_N
MDI_PC_P
MDI_PB_N
MDI_PB_P
MDI_PA_N
MDI_PA_P
DG
RGMII_TCLK
001:5C
RGMII_RCTL
001:5C
L2SW_33V
DG
RGMII_RD0
001:5D
L2SW_11V
L2SW_33V
E_MDIO
001:5C
R203
RGMII_TCTL
001:5C
DG
L2SW_33V
DG
R215
DG
L2SW_11V
E_MDCLK
001:5C
RGMII_TD0
001:5C
DG
DG
25MOUT
001:4D
RGMII_TD1
001:5C
DG
PHY_RST
001:5C
RGMII_RD1
001:5D
DG
DG
L2SW_11V
L2SW_33V
L2SW_33V
L207
L206
L205
L204
L203
L201
RGMII_TD3
001:5C
RGMII_TD2
001:5C
RGMII_RCLK
001:5D
R217
1
8
2
7
3
6
4
5
R216
RGMII_RD2
001:5D
RGMII_RD3
001:5D
L2_VDDH
L2_VDDP
L2_VDDR
L2_VDDL
L2_VDDA
L212
L2_VDDS
L2_VDD
R219
R218
L2SW_U2
L2SW_U
1
D
201
D20
2
DG
C243
C234
C227
C218
C238
C231
C251
C239
C248
C242
C236
C226
C252
C246
C253
C247
C228
C222
L2SW_JTAG_TDO
L2SW_JTAG_TDI
L2SW_JTAG_TMS
L2SW_JTAG_TCK
L2SW_JTAG_TRSTN
DG
DG
C255
DG
DG
L2SW_33V
DG
L2SW_UV
L2SW_UG
IC203
NC
1
*CS
2
DO/IO1
6
CLK
7
*HOLD
3
*WP
8
VCC
4
GND
5
DIO/IO0
L2SW_33V
R222
R223
L2SW_33V
DG
C256
DG
L2_VDDP
R265
L2SW_33V
DG
R266
R268
R267
DG
L2SW_33V
DG
R269
R270
L2SW_33V
DG
R271
R272
L2SW_33V
DG
R273
R276
DG
R275
DG
R277
R278
DG
R279
R280
DG
R281
R282
L2SW_33V
R274
R220
SMDCLK
SMDIO
C250
10uF
C254
C249
C232
C204
C209
C212
C223
C224
C225
C229
C230
C233
C235
C237
C240
C241
C244
C245
R221
IC201
A40
G0_TPIBN
B37
G0_TPICP
A41
G0_TPICN
B38
G0_TPIDP
B39
G0_TPIDN
A43
G1_TPIAP
B40
G1_TPIAN
B41
G1_TPIBP
A45
G1_TPIBN
B43
G1_TPICP
A47
G1_TPICN
B44
G1_TPIDP
B45
G1_TPIDN
A49
G2_TPIAP
B46
G2_TPIAN
B47
G2_TPIBP
A51
G2_TPIBN
B48
G2_TPICP
A52
G2_TPICN
C4
VDD3
C2
VDD4
A23
VDDQ
B19
VDDS1
C15
VDDS2
C17
VDDA
C37
VDDL1
C33
VDDL2
C12
VDDL3
B42
VDDL4
C28
VDDR1
C26
VDDR2
C21
VDDP1
C19
VDDP2
C8
VDDP3
C6
VDDP4
C39
VDDH1
C36
VDDH2
C34
VDDH3
B30
RGMII5_TXD2
B31
RGMII5_TXD3
B28
RGMII5_TX_CTL
B32
RGMII5_RXC
B33
RGMII5_RXD0
A36
RGMII5_RXD1
B34
RGMII5_RXD2
B35
RGMII5_RXD3
A38
RGMII5_RX_CTL
B20
RX0_P
B21
RX0_M
B18
TX0_P
A19
TX0_M
B17
RESREF
B25
GPIO0/GPC0/EXINT0/MMDIO
A27
GPIO1/GPC1/EXINT1/MMDC
A30
GPIO2/SSDI/URXD
B27
GPIO3/SSDO/UTXD
A28
GPIO4/SSCK/SMDC/LIGHT
A10
GPIO19/LED30/TMS
A12
GPIO20/LED40/TCK
B4
GPIO21/LED01
B6
GPIO22/LED11
B8
GPIO23/LED21
B10
GPIO24/LED31
B12
GPIO25/LED41
B5
GPIO26/LED02/LIGHT
B7
GPIO27/LED12
B9
GPIO28/LED22
B11
GPIO29/LED32
A13
GPIO30/LED42
A2
TRSTN
B22
XTAL1/CLK
B23
XTAL2
B3
HRSTN
A21
NC1
B2
NC2
B36
G0_TPIAP
A39
G0_TPIAN
D4
G0_TPIBP
D1
G2_TPIDP
A1
G2_TPIDN
D2
G3_TPIAP
PAD1
GND
C25
VDD1
C23
VDD2
C31
VDDH4
C14
VDDH5
C10
VDDH6
A34
RGMII5_TXC
B29
RGMII5_TXD0
A32
RGMII5_TXD1
B26
GPIO5/SSCS/SMDIO/PWLED
B24
GPIO6/MSDI/LIGHT
A26
GPIO7/MSDO/PWLED
A4
GPIO16/LED00
A6
GPIO17/LED10/TDO
A8
GPIO18/LED20/TDI
A14
G3_TPIAN
B13
G3_TPIBP
A15
G3_TPIBN
B14
G3_TPICP
B15
G3_TPICN
A17
G3_TPIDP
D3
GPIO8/MSCK
A25
GPIO9/MSCS
B16
G3_TPIDN
B1
RCAL
Change
11
KX-HDV230 Series 
4.2.5.
PoE Circuit
The IC202 integrates a PD(Powered Device) controller and a DC-DC CONVERTER.
PD CONTROLLER
• a resistance(R209:26.7Kohm) for signature detection.
• classification currents (R211:143Kohm 1%) for power classification(HDV230 supports Class 2)
DC-DC CONVERTER
• Current limit/ Current Sense(R207)
• Output voltage feedback(R204,R213,R201)
4.2.6.
Analog Circuit
1. Speaker phone call
Transmitting signal is input from microphone MIC1 (differential amplifier circuit) 
 input to IC101-pin L19, M19  A/D conver-
sion, Gain adjustment and echo cancel by built-in DSP of IC101.
Receiving signal input from IP Line 
 Gain adjustment and D/A conversion by DSP of IC101  output from IC101-pin V18,
V19 
 output to Speaker.
LAN port(JK201)
C202
R209
C201
PoE_G
C207
R210
C203
R211
C205
C206
R212
C208
PoE_DC
R213
C220
C219
R214
R206
C217
C216
R205
C215
C214
PoE_G
PoE_G
C213
R204
C211
PoE_G
C210
R202
DG
D218
L202
R201
C221
R208
R207
Q202
IC202
1
VAUX
2
CT1
6
VDD48I
3
CT2
4
SP1
5
SP2
7
GND1
8
VDD5
9
RCURR
10
RCLASS
11
LVMODE
12
FB
13
COMP
14
CSS
15
CS
21
GND2
20
VDD48O
19
PDRV
18
VBP
17
VBN
16
NDRV
C293
Q203
UVLO=36V
Signature
Detection
Classification
Current Sense
<- DC Power 
Output voltage
feedback
IC101
C444
R419
R423
C441
R421
C440
C442
C443
R420
R424
C436
NC
R422
AG
AG
AG
AG
AG
AG
AG
AG
AG
R418
AG
MICBIAS
C437
C438
C439
50
C432
C433
D413
D414
CL_MICP
CL_MICM
R401
C401
NC
R414
MIC401
1
2
Differential signal
AG
C469
AG
C470
L19
M19
V19
V18
SPP
SPM
C429
C434
C435
D411
D412
CL_SPP
CL_SPM
R416
R417
C431
C428
C427
C426
L407
L408
C430
DG
DG
DG
DG
DG
DG
DG
DG
L410
L411
L405
L406
L420
L421
12
KX-HDV230 Series 
2. Handset call
Transmitting signal is input from handset microphone 
 input to IC101-pin M17,M18  A/D conversion, Gain adjustment and
echo cancel by built-in DSP of IC101.
Receiving signal input from IP Line 
 Gain adjustment and D/A conversion by DSP of IC101  IC101-pinK18,K19  output
to handset speaker.
3. Headset call
Transmitting signal is input from headset microphone 
 input to IC101-pin N15  A/D conversion, Gain adjustment and echo
cancel by built-in DSP of IC101.
Receiving signal input from IP Line 
 Gain adjustment and D/A conversion by DSP of IC101  IC101-pinL17  output to
headset speaker.
IC101
M18
M17
K18
K19
D409
C418
MICBIAS
AG
AG
AG
MICBIAS
HS_MICP
AG
AG
AG
R413
C423
AG
R412
R411
HS_MICM
AG
C424
L401
C425
R415
L404
R410
D406
C417
R409
D405
AG
AG
AG
CL_HS_MICP
C414
C413
CL_HS_MICM
C411
AG
R408
C409
C408
C407
D403
L416
AG
AG
C416
C415
D410
D408
D407
AG
AG
AG
C419
C420
AG
AG
HS_SPP
AG
L402
HS_SPM
L403
CL_HS_SPP
CL_HS_SPM
C410
D404
IC101
N15
L17
D402
R406
CL_HEAD_IN
AG
AG
AG
HEAD_OUT
D401
C406
C405
C404
AG
HEAD_IN
R405
C403
AG
R404
CL_HEAD_OUT
C402
AG
R402
HEAD_IN_GND
AG
HEAD_OUT_GND
L415
MICBIAS
C498
C499
R403
AG
C469
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