※ In order to check, connect the player to the HDMI terminal and configure the TV as AVR source.
Check sound output by turning on the player and the TV.
HDMI OUT
HDMI IN1
3-11. HDMI Rx/Tx [MN864788] & OSD[ADV7623] failure detection procedure
Check item(61).
Check the TMDS CLK detection status of the regis-
ter.
Send the following command from Termite.exe.
Send the command "
i 00B2 006A 0001
".
When the following value is returned, go to Yes.
"
11
"
When the following value is returned, go to No.
"
00
"
Checking the TMDS status register (Rx/Tx -> OSD)
Example
i 00B2 006A 0001
Check item (62).
Checking the TMDS input waveform. :
Check the TMDS waveform at the following test point.
Is the waveform like the sample?
23/24/26/27/29/30/32/33 pin
IC731
HDMI Rx/Tx [
IC721
] is faulty.
Replace with a new device.
Recheck from
check item (4).
If it does not work, replace the PCB.
OSD[
IC731
] is faulty.
Replace with a new device.
YES
NO
TMDS Signal
3.3V
Example of waveform in check ①
Voltage scale:1.0V/div
Time scale:20ms/div
TMDS
Example of waveform in check ②
Voltage scale:1.0V/div
Time scale:1s/div
YES
104
Caution in
servicing
Electrical
Mechanical
Repair Information
Updating
Содержание AVR-S730H
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