Read Panasonic KX-DT543RU / KX-DT546RU Service Manual Supplement online
11
Table-4 : ASIC2(IC205) Data Error
Check the soldering.
Resolder or replace parts as needed.
Resolder or replace parts as needed.
Related parts:
[Main PCB] CN400
[Ope PCB] CN160,D160,C160,C161,C154
[Ope PCB] CN160,D160,C160,C161,C154
C156
Flat Cable (Between Main PCB and Ope PCB)
NO
Confirm the voltage at Pin 3 of IC150 (Ope PCB).
Is it about 3.3V?
Is it about 3.3V?
Related parts:
[Ope PCB] L150,C150,C152,C153
NO
YES
Confirm the voltage at Pin 19 and Pin 36 of
IC150 (Ope PCB).
Is it about 3.3V?
YES
Related parts:
[Main PCB] CN400,IC300,R334
[Ope PCB] CN160,R151
[Ope PCB] CN160,R151
Flat Cable (Between Main PCB and Ope PCB)
NO
YES
Confirm the frequency of clock signal at Pin 1 of
IC150 (Ope PCB). Is it 2MHz?
IC150 (Ope PCB). Is it 2MHz?
Refer to the waveform (5).
Related parts:
[Main PCB] CN400,IC300,IC410,R424,
R455,R456,R334,R452
R453,R454
R453,R454
[Ope PCB] CN160,IC150,L150,R151
Flat Cable (Between Main PCB and Ope PCB)
NO
YES
Confirm the waveform of communication
between IC150 (Ope PCB) and IC410 (Main PCB).
between IC150 (Ope PCB) and IC410 (Main PCB).
Refer to the waveform (6),(7).
END
Related parts: [Main PCB]
X301,R323,R324,C382,C383
Confirm the frequency of clock signal at Pin 39 of
IC300 (Main PCB). Is it 16.384MHz?
IC300 (Main PCB). Is it 16.384MHz?
Refer to the waveform (4).
YES
NO
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