Denon DHT-391XP Service Manual page 35

Check TV
(10) Is the TV HDCP-compatible?
(11) Is the TV compatible with resolutions of 1080P?
(12) Is the TV's input set to HDMI?
(13) Are the picture and sound output when a different TV is used?
Check set (AVR-1311, 391)
(14) Is the set's input set to HDMI?
YES
The set does not recognize the TV.
(15) Is the "H"(3V-5V) signal outputted of IC11 (41pin)?
With the TV connected, Check voltage of the IC on the side on
which the TV is connected.
Is communication waveform confi rmed in 15pin(DDC_
CLK)/16pin(DDC_DATA) of HDMI connector (JK15)?
Is terminate the TMDS signal is 3.3V confi rmed in 1pin/3pin/4pin/
6pin/7pin/9pin/10pin/12pin of HDMI connector (JK15)?
YES
(16)
When using a DENON
BD/DVD player, is the FL
display's "HDMI" indicator lit?
If using a non-DENON BD/
DVD player, proceed to
"NO".
YES
Check operation of IC11.
(Video input 480P from BD/DVD players / Connect the TV.)
(18) Check power supply.
Are 1.8V or 3.3V supplied to IC11 (each power supply pin)?
YES
YES
YES
YES
YES
The BD/DVD player does not recognize the
connection with the set.
(17)
Is the "H"(3V-5V) signal outputted of HDMI
connector (JK11/JK12/JK13/JK14 : 19pin)?
NO
With the BD/DVD player connected, Check
voltage of the HDMI connector for the input
on the side on which the BD/DVD player is
connected.
Is communication waveform confi rmed in
15pin(DDC_CLK)/16pin(DDC_DATA) of each
HDMI connector?
Is terminate the TMDS signal is 3.3V confi rmed in
1pin/3pin/4pin/6pin/7pin/9pin/10pin/12pin of each
HDMI connector?
YES
YES
NO
Use an HDCP-compatible TV. PC TVs
cannot be used.
If the TV is not compatible with resolutions
NO
of 1080P, no picture will be output, even
if the BD/DVD player's resolution is set to
1080P.
NO
Check TV's input setting, referring to the
TV's operating instructions.
NO
The TV is defective.
NO
Check set's input setting, referring to the
set's operating instructions.
The pattern and circuit from the HDMI
NO
connector (JK15) to the IC11 is defective, or
HDMI output circuitry is defective (IC11 and
surrounding circuitry).
NO
NO
The power supply circuitry is defective.
35
The pattern and circuit
from the HDMI connector
(JK11/JK12/JK13/JK14)
to the IC11 is defective.