Panasonic KX-NT511ARUW / KX-NT511ARUB Service Manual ▷ View online
21
KX-NT511ARUW/KX-NT511ARUB
Table-5
No. 11
L2SW initialization Error
[Check Points]
Measure the voltage at C215 (Between L2SW_3.3V and DGND). Is it 3.3V?
Measure the voltage at C224 (Between L2SW_1.8V and DGND). Is It 1.8V?
Measure the 25MOUT signal at Pin G19 of IC101 or R108. Is it 25MHz?.
Measure the TXCLK signal at Pin 23 of IC201 or R214. Is it 25MHz?
Measure the RXCLK signal at Pin 30 of IC201 or R220. Is it 25MHz?
For details to 9.5.1 PHY Data Error. (P.25)
Measure the voltage at C224 (Between L2SW_1.8V and DGND). Is It 1.8V?
Measure the 25MOUT signal at Pin G19 of IC101 or R108. Is it 25MHz?.
Measure the TXCLK signal at Pin 23 of IC201 or R214. Is it 25MHz?
Measure the RXCLK signal at Pin 30 of IC201 or R220. Is it 25MHz?
For details to 9.5.1 PHY Data Error. (P.25)
[Related Parts]
IC101,IC201,L105,L201,L202,L204,L205.
C214-C218,C273,C222-C226,RA101,RA201,RA202,
R101-R104,R108,R213-R220,R242-R243,R230-R232,R244
C214-C218,C273,C222-C226,RA101,RA201,RA202,
R101-R104,R108,R213-R220,R242-R243,R230-R232,R244
[Related Circuit]
E_TXEN
E_TXD[3]
E_TXD[2]
E_TXER
E_TXD[0]
E_TXCLK
E_TXD[1]
R218
4
5
R217
R213
R215
L105
R103
R104
R101
R102
RA101
R108
25MOUT
R232
L205
R231
RA201
1
8
R230
C214
R219
2
7
L204
3
6
DGND
R216
1.8V
L2SW_1.8V
L2SW_3.3V
3
6
2
7
1
8
RA202
4
5
IC201
13
NC
14
X1
15
X2
16
SMTXEN3
17
SMTXD33/EN_REFCLKO_3
18
SMTXD32
19
SMTXD31
20
SMTXD30
21
GND1
22
VDDIO1
23
SMTXC3/REFCLKI_3
24
SMTXER3/MII_LINK_3
25
SMRXDV3
26
SMRXD33/REFCLKO_3
27
SMRXD32
28
SMRXD31
29
SMRXD30
30
SMRXC3
31
GND2
32
VDDC
33
SCOL3
34
SCRS3
35
*INTRN
36
SCL_MDC
37
SDA_MDIO
38
SPIQ
39
*SPISN
40
VDDIO2
41
GND
42
VDDCO
43
P1LED1
44
P1LED0
45
P2LED1
46
P2LED0
47
*RSTN
48
FXSD1
1
RXM1
2
RXP1
3
TXM1
4
TXP1
5
VDDA_3.3
6
ISET
7
VDDA_1.8
8
RXM2
9
RXP2
10
AGND
11
TXM2
12
TXP2
R243
R242
R220
R214
R244
3.3V
DGND
L2SW_3.3V
C227
C228
1.8V
C225
C224
C216
C217
C219
C220
C215
C221
C218
L2SW_1.8V
C222
DGND
C223
C226
L202
L201
C273
IC101
E_TXD[0]
E_TXD[2]
E_TXEN
E_TXCLK
E_TXER
E_TXD[1]
E_TXD[3]
E_RXCLK
E_CRS
E_COL
E_MDCLK
PHY_INT
E_RXD[1]
E_RXD[3]
E_RXDV
E_RXD[0]
E_RXD[2]
E_MDIO
E_RST
22
KX-NT511ARUW/KX-NT511ARUB
9.2.
LCD Does Not Operate
Note:
Refer to waveform (6) in Waveform (P.41)
Yes
No
No
Yes
No
Yes
END
Confirm the waveform at Pin 2, 3, 4 and 6 of CN2.
See the communication waveform (4).
See the communication waveform (4).
Measure the voltage at Pin 6 of CN2.
Is it 3.3V?
Is it 3.3V?
Confirm the LCD display.
Is it working?
Is it working?
Related parts: CN2, LCD Module
Related parts: RA110
No
Confirm the waveform SCLK at Pin 5 of CN2.
See the communication wavefome(3).
See the communication wavefome(3).
Related parts: L103, RA110
No
Yes
Yes
Measure the voltage between Pin 11 and Pin 14
of CN2.
Is it about 4.5V.
of CN2.
Is it about 4.5V.
Related parts: C130, C131, C132, C133
Check the soldering.
Resolder or replace parts as needed.
Resolder or replace parts as needed.
Related parts: CN2
Or see 9.1. NO OPERATION. (
Or see 9.1. NO OPERATION. (
P.16
)
23
KX-NT511ARUW/KX-NT511ARUB
9.3.
Handset Does Not work
9.3.1.
Receive
9.3.2.
Send
Yes
No
Confirm the Handset communication.
Can it hear any sound from handset speaker?
Can it hear any sound from handset speaker?
No
Yes
END
Related parts: Jack of Handset (BRW and YE),
L305, L306
Confirm the Handset communication.
Can it hear any sound from handset speaker?
Can it hear any sound from handset speaker?
Check the soldering.
Resolder or replace parts as needed.
Resolder or replace parts as needed.
Related parts:
Handset, Curl cord
No
Confirm the Handset Communication.
Can it hear any sound from handset microphone?
Can it hear any sound from handset microphone?
Yes
Yes
No
END
Related parts: Handset, Curl cord
Related parts: Jack of Handset(BK and RED),
L310, L311, R313, R314, C351,
C352, R311, R312
C352, R311, R312
Confirm the Handset Communication.
Can it hear any sound from handset microphone?
Can it hear any sound from handset microphone?
Check the soldering.
Resolder or replace parts as needed.
Resolder or replace parts as needed.
24
KX-NT511ARUW/KX-NT511ARUB
9.4.
Speaker-Phone Does Not Work
9.4.1.
Receive
9.4.2.
Send
No
Yes
END
Confirm the Speakerphone communication.
Can it hear any sound from speakerphone speaker?
Related parts:
No
Yes
Confirm the waveform between TP CL-SPP and
TP CL-SPM. Is there any output waveform?
TP CL-SPM. Is there any output waveform?
Check the soldering.
Resolder or replace parts as needed.
Resolder or replace parts as needed.
L301, L302, R329, R330, C375,
C376
Related parts:
Speaker, Speaker-cable
No
Yes
No
Yes
END
Related parts: Microphone, Microphone-cable
Confirm the Speakerphone communication.
Can it hear any sound from speakerphone
microphone?
Confirm the Speakerphone communication.
Can it hear any sound from speakerphone
microphone?
Related parts: R320, R321, R322, R323, R325,
R326, R327, R328, C365, C366
Check the soldering.
Resolder or replace parts as needed.
Resolder or replace parts as needed.
No
Yes
Measure the voltage at C369.
(Between MICBIAS and AGND).
Is it 3.3V?
Related parts: R324
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