※ In order to check, connect the player to the HDMI terminal and congure the player and TV as AVR
source.
Check the sound output while turning on the player and TV.
HDMI OUT
HDMI IN1
3-11. Fault detection procedure between HDMI Rx/Tx [MN864788] & OSD [ADV7623].
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
U1030
HSDA
HDMI Rx/Tx [U1027] is faulty.
Replace with a new device.
Recheck from check item (4).
If it does not work, replace the PCB.
OSD[U1030] 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
105
Caution in
servicing
Electrical Mechanical Repair Information Updating
To Next Page
Loading...
