Panasonic KX-DT543RU / KX-DT546RU Service Manual ▷ View online
21
KX-DT543RU/KX-DT543RU-B/KX-DT546RU/KX-DT546RU-B
NO
YES
Check the TEST POINT(ST0-ST3).
See Table-1.
Is it "NOT Error (No.1)" ?
See Table-1.
Is it "NOT Error (No.1)" ?
YES
NO
YES
Confirm the LCD display.
Is it working?
Is it working?
END
Boot ROM Error into IC410 (No.2)
NO
Is it possible to call other telephone from DPT?
[ DCX81(IC410) ]
[ Flash ROM(IC401) ]
[ ASIC2(
IC150
) ]
[ ASIC1(IC300) ]
A
[ LCD ]
See Table-2 (
P.23
).
Flash ROM(IC401) Data Error
/ DSP Data Error (No.3,4,6,7)
See Table-3 (
P.24
).
ASIC2(IC150) Data Error (No.5)
See Table-4 (
P.25)
.
See "
8.2
ASIC1(IC300) Does Not Operate".
See "
8.3
LCD Does Not Operate".
22
KX-DT543RU/KX-DT543RU-B/KX-DT546RU/KX-DT546RU-B
Table-1: PORT OUTPUT at ERROR
The error result is output to a port of IC410 at error. Check the Test Point ST3,ST2,ST1 and ST0.
See below for the output contents.
See below for the output contents.
Remarks: H=3.3V, L=0V
No.
Test Point
Error Item
Related Points
LCD Error Message.
ST3
ST2
ST1
ST0
1
H
H
H
L
NOT Error
2
H
H
H
H
No Power(+3.3V) Error
See Table-2
3
L
L
H
L
Flash ROM(IC401) Data Error
See Table-3
4
L
H
L
L
Flash ROM Data Error
See Table-3
5
H
L
H
L
ASIC(IC150) Data Ezzor
See Table-4
ERR 1001-0000
HARDWEAR ERROR
6
L
L
H
H
DSP Data Error
See Table-3
ERR 1003-0002
HARDWEAR ERROR
7
H
L
L
H
Flash ROM(IC401) Data Errorr
See Table-3
ERR 1003-1003
HARDWEAR ERROR
Q460
JTAG_RTCK
pcbmark-1
JTAG_TDI
JTAG_TDO
JTAG_TCK
AG-DG
IC300
JTAG_TMS
E
1
12
25
36
3 7
4 8
L 4 6 0
L 4 6 1
R415
L462
R418
R 4 1 9
R420
R421
R 4 2 2
R 4 2 4
R 4 2 8
R437
R 4 3 8
R 4 3 9
R 4 4 0
3 . 3 V
R 4 5 3
R 4 5 4
C 4 2 2
R 4 6 3
C427
C 4 2 8
C431
LCD_A0
H E S S P O U T
ST0
ST1
ST2
S
C 4 6 3
C 4 6 6
C467
PEP1
SPI_DO
4 . 5 V
R305
R 3 0 6
R307
R 3 0 8
LCD_RST
R 3 3 0
R 3 3 1
R 3 3 2
C308
C 3 1 0
C 3 1 1
C323
C 3 2 6
R 5 5 8
C328
R559
C 3 2 9
R 5 6 3
R 5 6 6
R 5 6 9
1 . 2 V
R 5 7 0
H E S M I N
C 3 6 2
TP_LED+
TP_LED-
C563
C 5 6 4
C 5 6 8
C 5 7 1
C 5 7 6
C 5 7 7
C 5 7 8
C 5 8 0
L 2 2 0
L 2 2 1
C582
L 2 2 2
C583
PSYNC
C585
C586
UART_GND
SPI_CLK
D
MAIN BOARD BOTTOM VIEW
S T 0
S T 1
S T 2
S T 3
23
KX-DT543RU/KX-DT543RU-B/KX-DT546RU/KX-DT546RU-B
Table-2 : Boot ROM Error
in
IC410
Related parts: IC410,X410,R412,R413,C440,C441
Check the soldering.
Resolder or replace parts as needed.
Resolder or replace parts as needed.
Related parts: L410,C413,C406,C407,
C410,C431,IC410
NO
YES
Confirm the voltage at TP:1.2V.
Is it about 1.2V?
Is it about 1.2V?
Related parts: IC410,C404,C405
NO
YES
Confirm the voltage at TP:V1.8.
Is it about 1.8V?
Is it about 1.8V?
NO
Confirm the frequency of clock signal at Pin 45 of
IC410. Is it 13.824MHz?
IC410. Is it 13.824MHz?
Refer to the waveform (1).
END
Confirm the voltage at Pin14,15,17,67,92 of
IC410 (1.2V input pin).
Is it about 1.2V?
Related parts: C406,C407,R464,R465,
C410,C431,IC410,C450,C451
C560-562,IC410
YES
Confirm the voltage at Pin 19 of IC410 (VCC33).
Is it about 3.3V?
Is it about 3.3V?
YES
NO
Related parts: L222
NO
C156
C151
C152
1 CLKIN
12
KEYIN2
13
KEYIN3
23
LED_COM3
34
LED_COM
6
14
KEYIN4
15
KEYIN5
16
KEYIN6
17
KEYIN7
18
VSS2
19
VDD2
20
LED_COM
0
21
LED_COM
1
22
LED_COM
2
24
LED_STB0
25
LED_STB1
26
LED_STB2
27
LED_STB3
28
LED_STB4
29
LED_STB5
30
LED_STB6
31
LED_STB7
32
LED_COM4
33
LED_COM5
35
LED_COM
7
36
VDD3
37
VSS3
38
INT_OUT0
39
INT_OUT1
40
TEST
41
RESET
42
SCS
43
SCLK
44
SDI
2 CLKOUT
3 VDD1
4 VSS1
5 SDO
6 GKEYIN0
7 GKEYIN1
8 PSBIN
9 PSBOUT
10 KEYIN0
11 KEYIN1
C153
C154
R154
DG
KEYs and LEDs Circuit
L150
INT0
ASIC_RST
ASIC_RST
I2C_SCL
I2C_SDA
ASIC_CLK
R151
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CL207
CN160
C160
C161
C162
D160
DG
DG
AGND
IC150
Ope PCB side
1
14
13
12
11
10
9
8
7
6
5
4
3
2
CN400
DG
DG AGND
IC410
IC300
DCX81
R
323
R563
R324 C383
R454
R453
R452
R
472
R
456
R
455
R
559
R433
R334
X301
R454
R453
R452
C568
R443
R442
R
558
C382
DG
Main PCB side
[Related Circuit]
24
KX-DT543RU/KX-DT543RU-B/KX-DT546RU/KX-DT546RU-B
Table-3 : Flash ROM(IC401) Data Error / DSP Data Error
Check the soldering.
Resolder or replace parts as needed.
Resolder or replace parts as needed.
Related parts: C400,C559,IC401,IC410,L222
NO
Confirm the voltage at Pin 8 of IC401 (VCC33) and
Pin 106 of IC410.
Are they about 3.3V?
Pin 106 of IC410.
Are they about 3.3V?
Related parts: IC410,R408
NO
YES
Confirm the frequency of clock signal at Pin 6 of
IC401. Is it 103.68MHz?
(This clock is NOT continuous)
IC401. Is it 103.68MHz?
(This clock is NOT continuous)
Refer to the waveform (2).
YES
Related parts: IC410,IC401,R404,R405,R406,
R407,R408,R409,C400,C559
NO
YES
Confirm the waveform of communication
between IC401 and IC410.
between IC401 and IC410.
Refer to the waveform (3).
END
DG
VCC33
DG
IC410
C400
C559
R4
0
0
R4
0
1
R4
0
2
R
403
R
404
R
405
R4
0
6
C
490
C
491
R4
0
7
R
408
R
409
IC401
108
107
105
104
107
105
104
1
2
2
C
DQ1
DQ3
DQ3
S#
DQ2
DQ0
DQ0
C
D
Q
1
D
Q
3
S
#
D
Q2
D
Q
0
1
2
3
4
8
7
6
5
*CS
IO1
IO2
GND
VCC
IO3
CLK
IO0
DCX81
[Related Circuit]
VCC33
QVCC
106
Click on the first or last page to see other KX-DT543RU / KX-DT546RU service manuals if exist.