Starting Detecting The Point Of Failure; Start In Hdmi Diagnostics Mode; Display When An Error Code Is Displayed; Display When An Error Is Not Detected - Denon AVR-X6400H Service Manual

3. Starting detecting the point of failure

Check item(1).
Check the power supply status and communication status with the CPU of each device.
Start in HDMI Diagnostics mode and follow the procedures below.

(1) Start in HDMI Diagnostics mode

While the power is on, hold down buttons "CURSOR d " and "BACK" for at least 3 seconds.
L1 HDMI DIAGNOSTICS
L2
"HDMI DIAGNOSTICS" is displayed.
When the mode has switched, start Hardware Check.
L1 HDMI DIAGNOSTICS
L2 HardwareCheck...

(2-1) Display when an Error Code is displayed.

L1 Err:
H1-01
L2 Contact support
Check the Error Code table items.
Error Code table
Error Code Check item No.
H1-01 Check item (6) Communication Error with HDMI Tx
H1-02 Check item (11) Communication Error with HDMI SW1
H1-03 Check item (14) Communication Error with HDMI SW2
H1-05 Check item (25) Communication Error with VIDEO DECODER
H1-06 Check item (17) Communication Error with GUI IC
H1-08 Check item (26) Communication Error with DSP1
H1-09 Check item (31) Communication Error with DSP2
H1-10 Check item (34) Communication Error with DSP3
H1-11 Check item (39) Communication Error with DSP4
H1-12 Check item (42) Communication Error with DIR
H1-14 Check item (22) DDR check Error
H1-15 Check item (23) Communication Error with GUI ROM
H1-16 Check item (45) Communication Error with ARC IC

(2-2) Display when an Error is not detected.

L1 HDMI DIAGNOSTICS
L2 1 Auto Test
Cancel the mode, and proceed to
Canceling the selected mode
Press the power button to exit off the power.
Description
[U3401 : MN864787]
[U2401 : MN864788]
[U2601 : MN864788]
[U2000 : ADV7850]
[U2800 : ADV8003]
[U101 : ADSP21487]
[U201 : ADSP21487]
[U301 : ADSP21487]
[U401 : ADSP21487]
[U7004 : PCM9211]
[U3000, U3001 : A3R12E40DBF-8E]
[U2801 : MX25L12835FMI-10G]
[U3802 : SiI9437]
99
check item (2).