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Model
KX-NT511PRUW KX-NT511PRUB
Pages
68
Size
5 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / IP PROPRIETARY TELEPHONE
File
kx-nt511pruw-kx-nt511prub.pdf
Date

Panasonic KX-NT511PRUW / KX-NT511PRUB Service Manual ▷ View online

17
KX-NT511PRUB/KX-NT511PRUW
9.1.2.
Power Supply : AC adaptor
Note:
Refer to waveform (1),(2) and (3)  Waveform (P.44) .
9.1.3.
Power Supply : PoE
Yes
No
Related parts: JK700, F700, L704, C739, C756,
D707, D705, IC701-704, C733,
C727, C717, C747, C759-761,
C754
Check the soldering.
Resolder or replace parts as needed.
Measure the voltage at TP:DCIN1.
Is it about 9V? 
GO TO  A
GO TO   A
Yes
No
Related parts: JK2, T2, L411-L414, R403,
                        R404, R202, R204, C426, C427,
                        C255, C256, C202, D401, D402
Measure the voltage between Pin + and - of D401.
Is it about 48V?
Measure the voltage at TP5V.
Is it 5V?
Measure the voltage at TP 3.3V.
Is it 3.3V?
Related parts: IC401, F401, L415, D403, C401
Related parts: IC401, Q401, D406, L417, R418,
                        R416, R417, R414, R415, C406,
                        R411-R413, C412, C411, C402,
                        C403
No
No
Yes
Yes
Measure the voltage between Pin 7 and 8 of IC401.
Is it about 48V?
Confirm the waveform of PoE Swiching  Regulator
signal at Pin(Gate) of Q401.
See the communication waveform(15).
Yes
No
No
Measure the voltage at TP:8V(8V).
Is it about 8V?
Related parts: D408, L418, C425, R420, R421,
                        R422, R419, C415, C423, C422
                        C421, C420, C419, C418, C417,
                        IC202
No
18
KX-NT511PRUB/KX-NT511PRUW
Note:
Refer to waveform (1),(2) and (3)  Waveform (P.44) .
Yes
END
No
Measure the voltage at TP5V.
Is it 5V?
Measure the voltage at TP 3.3V.
Is it 3.3V?
Yes
Related parts: R233,R241,D211,C236,C239
Check the soldering.
Resolder or replace parts as needes.
Related parts: IC202,R234-R239,C235,C237,
C243,C241,C245,C247,C249,
C251,C253,L211
No
No
Yes
Measure the voltage at TP 5V.
Is it 5V?
Measure the voltage at TP 3.3V.
Is it 3.3V?
Yes
No
No
Yes
Yes
Yes
Measure the voltage at TP CL±VDD1.8V.
Is it 1.8V?
Measure the voltage at TP CL±VDD1.2V.
Is it 1.2V?
Yes
Related parts: IC101,C304,C305,C344
Related parts: IC101,L307,C303
No
No
Yes
Confirm the waveform of reset signal at
TP PWR_RST.
See the communication waveform(1)*.
Measure the frequency of clock signal at
Pin 1 of X1
is it 25MHz?
See the communication waveform(2)*.
Yes
Yes
Related parts: IC301,R305,R306,C326-C328
Related parts:  X1,C101,C102,R110,R111,IC101
No
No
Measure the frequency of clock signal at
Pin 1 of X2
is it 12MHz?
See the communication waveform(3)*.
Related parts:  X2,C103,C104,R112,R113,IC101
No
Yes
Recheck the TEST POINT(ST0-ST3).
See Table-1. (P.19)
Is it "NOT Error (No.14)" ?
Related parts: See Table-2(P.2
) to
Table-5(P.2
).
No
Yes
Confirm the LCD display.
Is it sorking?
Related parts: 
See 9.2 LCD Does Not Operate.(P.2
)
RA110,L103,C129,C130,C131,
C132,C133,C134,C135,R140,
R141,R142,R143,R145,Q106,
CN2,LCD Module
*
1
Each IC101 has its own MAC address. 
When replacing the PCB1, remove the former 
MAC address label from the bottom of the unit 
and affix the included label which indicates the 
new MAC address.
A
19
KX-NT511PRUB/KX-NT511PRUW
9.1.4.
Table-1: PORT OUTPUT at ERROR
The error result is output to a port of IC501 at error. Check the Test Point ST3,ST2,ST1 and ST0.
See below for the output contents.
Remarks: H=3.3V, L=0V
No.
Error 
Code
Test Point
Error Item
Check Point
Related Point.
ST3
ST2
ST1
ST0
1
0x0
L
L
L
L
NO Power
External Power supply
• TP5V
• 3.3V Power supply circuit
Internal Power supply
• 1.8V Power supply circuit
• 1.2V Power supply circuit
Xtal (X1,X2)
See Table-2
2
0xF
H
H
H
H
Boot  Error
BBIC(IC101), Flash(IC103)
See Table-3
3
0x2
L
L
H
L
Flash Starting Error
Flash(IC103) or its peripheral cir-
cuit
See Table-3
4
0x4
L
H
L
L
IPL Load  Error
Flash(IC103) or its peripheral cir-
cuit
See Table-3
5
0x5
L
H
L
H
SDRAM  Error
SDRAM(IC102) or its peripheral 
circuit
See Table-4
6
0x6
L
H
H
L
DSP Boot Error
BBIC(IC101) or its peripheral circuit
7
0xA
H
L
H
L
 -
 -
 -
8
0x1
L
L
L
H
Flash Data Starting Error
Flash(IC103) or its peripheral cir-
cuit
See Table-3
9
0x3
L
L
H
H
Flash Adjustment Data 
Option Setting Error
Adjustment data error (Option)
10
0x9
H
L
L
H
 
-
 -
 -
11
0xB
H
L
H
H
L2SW Initialization Error
L2SW(IC201) or its peripheral cir-
cuit
See Table-5
12
0xC
H
H
L
L
 -
 -
 -
13
0x7
L
H
H
H
 -
 -
 -
14
0x7
H
H
H
L
Not Error
 -
 -
IC101
ST2
ST3
ST0
ST1
20
KX-NT511PRUB/KX-NT511PRUW
Table-2
Table-3
Note:
Refer to waveform (4) in  Waveform (P.44) .
No.1
No Power(VCC5V, VDD33V, VDD18V, VDD12V) Error
[Check Points]
Measure the voltage at C324. Is it 3.3V?
Measure the voltage at C304. Is it 1.8V?
Measure the voltage at C303. Is it 1.2V?
[Related Parts]
3.3V : C301,C302,C305,C323,C324,C337-C343,L308
1.2V : C303,C310-C322,C325,C331-C336,L309
1.8V : C304,C306,C344
Recheck 9.1.2.(Power Supply)
[Related Circuit]
No. 2,3,4,8
BOOT Error/Flash ROM Data Error
[Check Points]
Measure the voltage at C124(Between 3.3V and DGND). 
Is it 3.3V?
[Related Parts]
IC103,C122-C125,L102,RA111,RA112,R132,R133
[Related Circuit]
3.3V
VDD3.3V
VDD3.3V
1.8V 1.2V
VDD1.8V
VDD1.2V
R309
IC101
VDD3.3V
3.3V
L308
L307
NFLD[0]
NFLD[1]
NFLD[2]
NFLD[3]
NFLD[4]
NFLD[5]
NFLD[6]
NFLD[7]
NFLCS0
NFLALE
NFLCLE
NFLRD
NFLWR
NFLREADY
NFLRD
NFLCLE
NFLCLE
NFLREADY
NFLREADY
NFLCS0
NFLCS0
NFLALE
NFLALE
NFLWR
NFLD[4]
NFLD[5]
NFLD[6]
NFLD[7]
NFLD[3]
NFLD[2]
NFLD[1]
NFLD[0]
VDD3.3V
C125
DGND
3.3V
L102
DGND
C124
C123
C122
DGND
R133
R132
R137
R136
IC103
1
NC1
2
NC2
46
NC27
47
NC28
3
NC3
48
NC29
4
NC4
45
NC26
5
NC5
44
I/O7
6
NC6
43
I/O6
7
R/*B
42
I/O5
8
*RE
41
I/O4
9
*CE
40
NC25
10
NC7
39
NC24
11
NC8
38
NC23
12
VCC1
37
VCC2
13
VSS1
36
VSS2
14
NC9
35
NC22
15
NC10
34
NC21
16
CLE
33
NC20
17
ALE
32
I/O3
18
*WE
31
I/O2
19
*WP
30
I/O1
20
NC11
29
I/O0
21
NC12
28
NC19
22
NC13
27
NC18
23
NC14
26
NC17
24
NC15
25
NC16
DDRDQ12
D6
DDRDQ13
C7
DDRDQ14
D7
DDRDQ15
B6
DDRDM1
A6
DDRDQS1
A5
DDRDQS1_N
E16
DDRPADHI
E14
DDRPADLO
C4
DDR_RTT
A12
DDRODT0
C11
DDRODT1
C18
DDR_REF0
A11
DDR_REF1
A4
DDR_REF2
E7
VDDIO_DDR1
E10
VDDIO_DDR2
F5
VDDIO_DDR3
F6
VDDIO_DDR4
F7
VDDIO_DDR5
F8
VDDIO_DDR6
F9
VDDIO_DDR7
F10
VDDIO_DDR8
G11
VDDIO_DDR9
N8
VDDIO_NFLQSPI
R6
NFLD7/MEMXA21
W6
NFLD6/QCS1
T7
NFLD5/QCS0
T6
NFLD4/QDQ3
V4
NFLD3/QDQ2
V6
NFLD2/QDQ1
U6
NFLD1/QDQ0
W5
NFLD0/QCLK
R5
NFLREADY1/MEMXA22
U5
NFLWR/MEMXA23
T4
NFLRD/MEMXA24
V5
NFLCLE/MEMXA25
U4
NFLALE/MEMXA17
T5
NFLCS0/MEMXA18
R135
R134
C136
C137
DGND
RA112
1
8
2
7
3
6
4
5
2
7
RA111
1
8
3
6
4
5
IC101
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