Marantz NR1605/U1B Service Manual page 27

3.4. DIAGNOSTIC MODE (Service Path Check Mode)
3.4.1. Actions
This function is convenient for confirming problem paths in the product and executing a path check after repair.
The Video and Audio paths can be checked.
The backup data is not rewritten.
3.4.2. Starting up
Hold down buttons "ZONE2 SOURCE" and "STATUS" at the same time and press the power button to turn on the power.
Select the mode using the button "INTERNET RADIO", and press the button "STATUS" to commit the selection.
Select "1. SERVICE CHECK" and press the "STATUS" button to start the diagnostic mode.
The "TUNED", "STERO" and "RDS" segments are lit in this mode.
3.4.3. Canceling diagnostic mode
Press the power button to turn off the power.
3.4.4. Selecting items
Press q button to switch between video items and audio items.
Press button w or e to select the previous or next item.
The unit
q w
Actions
Audio ⇔ Video PREVIOUS
Button DIMMER M-DAX
3.4.5. Video system confirmation items
fig. XX: See the block diagram of the fig.XXth.
Paths confirmation item
Video Convert
V 0 2 : V . C O N V E R T
(Analog or HDMI ⇒ HDMI)
1
fig.01
HDMI pass
V 0 3 : H D M I
（MAIN ZONE）
fig.02
2
HDMI CEC
V 0 4 : H D M I
fig.03
3
HDMI Audio
V 0 5 : H . A U D I O - A V R
fig.04a
(Audio: AVR)
4
fig.04b
HDMI Audio
V 0 6 : H . A U D I O - T V
(Audio: TV)
5
fig.05
GUI
V 0 7 : G U I
fig.06
6
Remote control unit
e q w
NEXT Audio ⇔ Video PREVIOUS
INTERNET RADIO SLEEP CURSOR LEFT
Display
Input Source : CBL/SAT
Video Convert(IP Scaler) : ON, All sources
IP Scaler : "Analog & HDMI", All sources
Resolution : "Auto", All sources
MAIN ZONE ON
ZONE2 OFF
Input Source : CBL/SAT
P A S S
Source of Video Convert(IP Scaler) : OFF, All sources
MAIN ZONE ON
ZONE2 OFF
Input Source : CBL/SAT
C E C
HDMI Control : ON
MAIN ZONE ON
ZONE2 OFF
Input Source : CBL/SAT
HDMI Control : OFF
HDMI Audio：AVR ( if checking the audio output from AVR )
HDMI Audio：TV ( if checking the audio output from TV )
Input Source : CBL/SAT
M E N U O N
Video Convert(IP Scaler) : ON, All sources
IP Scaler : "Analog & HDMI", All sources
Resolution : "AUTO", All sources
Setup Menu ON
MAIN ZONE ON
ZONE2 OFF
s
s
e
NEXT
CURSOR RIGHT
Settings
・Check of CVBS input ⇒ IP Scaler ⇒ HDMI output.
・Check of CVBS input ⇒ CVBS output.
・Check of Component input ⇒ IP Scaler ⇒ HDMI output.
・Check of Component input ⇒ Component output.
・Check of HDMI input ⇒ IP Scaler ⇒ HDMI output.
・Check of ETHERNET input ⇒ IP Scaler ⇒ HDMI output.
（※ The input source can be switched to any source except CBL/SAT.）
・Check of HDMI input（MAIN Function）⇒ HDMI output（MAIN）
（※ The input source can be switched to any source except CBL/SAT.）
・When the power supply of a TV is put in the standby mode, make sure that the
power supply of this unit is also put in the standby mode.
・The ARC path can also be checked (check this using the TV input source).
（※ The input source can be switched to any source except CBL/SAT.）
・Check of HDMI input(PCM , DolbyDigital , DTS) ⇒ Speaker output.
・Check of HDMI input(HD audio) ⇒ Speaker output.
（※ The input source can be switched to any source except CBL/SAT.）
・Check of HDMI input(PCM , DolbyDigital , DTS) ⇒ HDMI output (audio output
from connected TV)
（※ The input source can be switched to any source except CBL/SAT.）
・Check of GUI display ⇒ HDMI output.
（※ The input source can be switched to any source except CBL/SAT.）
27
Contents of confirmation Remarks