Selection Modes For Service-Related Operations - Marantz SR5009/U1B Service Manual

3. Selection Modes for Service-related Operations

3.1. Actions
Select diagnostic mode (service path check mode), protection history display mode, or 232C standby clear mode.
3.2. Starting up
Hold down buttons "ZONE2 SOURCE" and "STATUS" at the same time and press the power button to turn on the power.
3.3. Displaying and Selecting Each Mode
The information shown on the display changes each time the button "TUNER PRESET CH+" is pressed.
Press the button "STATUS" to set the currently displayed mode and restart the device.
q
L1
1 S E R V I C E
FLD L2
C H E C K
L3
check after repair.
w
L1
2 P R O T E C T
FLD L2
L3
e
L1
3 R S 2 3 2 C
FLD L2
R E S E T
L3
r
L1
4 O P
FLD L2
L3
t
L1
5 T U N E R
FLD L2
F R E Q
L3
3.4. Canceling the mode
Press the power button to turn off the power.
Service Path Check Mode:
The Video and Audio paths can be checked.
This function is convenient for confirming problem paths in the product and executing a path
The protection history can be checked.
Switches from 232C standby mode to normal standby mode.
I N F O
Operation Info for the unit can be checked.
Enables reception STEP of the ANALOG TUNER to be changed.
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