Name: Denon avr-s720w
Brand: Denon
Rating: 5 (1 reviews)

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When the results of check item (46) are "the communication results are OK"

Check item(43). Check the TMDS CLK detection status of the regis-

ter. :

Send the following command from Termite.exe.

Send the transmission command "i 0006 00FF 0001".

The return value is "C8"

Go to Yes.

The return value is "other"

Go to No.

Check the TMDS status of the register. (OSD -> HDMI Rx/Tx)

Example

i 0006 00FF 0001

Check item (44). Checking the TMDS input waveform. :

Check the TMDS waveform at the following test point.

Is the waveform like the sample?

HDMI SW(IC701)

42/43/45/46/48/49/51/52pin

The HDMI Rx/Tx (IC721) is faulty.

Replace with a new device.

Recheck from check item (3).

If it does not work, replace the PCB.

The OSD(IC731) is faulty.

Replace with a new device.

Check the connection between the HDMI OUT terminal and the TV.

Go to check item (45).

YESYES NO

TMDS Signal

3.3V

Example of waveform in check ①

TMDS

Example of waveform in check ②

Caution in

servicing

Electrical Mechanical Repair Information Updating

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