Panasonic KX-DT543 - Page 23

23
KX-DT543/KX-DT543-B/KX-DT546/KX-DT546-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.
Related parts: L410,C413,C406,C407,
C410,C431,IC410
NO
YES
Confirm the voltage at TP: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?
NO
Confirm the frequency of clock signal at Pin 45 of
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?
YES
NO
Related parts: L222
NO
C156
C151
C152
1
CLKIN
12
KEYIN2
13
KEYIN3
23
LED_COM3
34
LED_COM6
14
KEYIN4
15
KEYIN5
16
KEYIN6
17
KEYIN7
18
VSS2
19
VDD2
20
LED_COM0
21
LED_COM1
22
LED_COM2
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_COM7
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
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
R323
R563
R324 C383
R454
R453
R452
R472
R456 R455
R559
R433
R334
X301
R454
R453
R452
C568
R443
R442
R558
C382
DG
Main PCB side
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