Panasonic DMR-PWT550GL Service Manual page 28

3. USB-HDD Diagnosis
<Diagnosis Result Value>
0
1
2
6
7
8
4. Digital/Tuner/Main P.C.B. System Diagnosis
(1) IC communication in the digital P.C.B. (CPU and Flash/DDR/HDMI, etc.)
<Diagnosis Result Value>
0
1
2
3
4
5
6
7
Other
No abnormality was detected from USB-HDD inspection.
Please check other diagnosis items.
No USB-HDD is connected or some other device is connected. Check to see if
there is any problem with the USB cable connection or the voltage power sup-
ply.
If there is no problem with the supply voltage or connection, there is a high pos-
sibility of USB-HDD unit defect.
An abnormality that can be determined as USB-HDD failure was detected.
Replace the USB-HDD unit.
If multiple USB-HDD units are connected.
If an unsupported USB-HDD is connected.
Unable to execute the Diagnosis Code Function normally.
There is a possibility of malfunction in the digital P.C.B. side.
No abnormality was detected in the digital P.C.B..
If there is a communication failure between CPU and FLASH/DDR, there is a
high possibility of digital P.C.B. circuit (such as foil cutting) or parts failure.
If there is a communication failure between CPU and HDMI-LSI, there is a high
possibility of digital P.C.B. circuit (such as foil cutting) or parts failure.
There is a communication failure between CPU and FLASH/DDR, and between
CPU and HDMI-LSI.
Take measures for "1" and "2".
There is an abnormality in HDMI-CEC circuit operation (High/Low Output).
There is a high possibility of digital P.C.B. circuit failure (such as foil cutting) or
parts failure.
There is a communication failure between CPU and FLASH/DDR, abnormality
in HDMI-CEC circuit operation (High/Low Output).
Take measures for "1" and "4".
There is a communication failure between CPU and HDMI-LSI, abnormality in
HDMI-CEC circuit operation (High/Low Output).
Take measures for "2" and "4".
There is a communication failure between CPU and FLASH/DDR and between
CPU and HDMI-LSI, abnormality in HDMI-CEC circuit operation (High/Low Out-
put).
Take measures for "3" and "4".
The Input Code is not correct. Please check the Diagnosis Code again.
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