Marantz SR7009/FN, Service Manual

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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 "
ZONE SELECT
" and "
BACK
" at the same time and press the power button to turn on the power.
Select the mode using the button "
CURSOR
f
/
d
", and press the button "
ENTER
" to commit the selection.
3.3. Displaying and Selecting Each Mode
The information shown on the display changes each time the button "
CURSOR
f
/
d
" is pressed.
Press the button "
ENTER
" to set the currently displayed mode and restart the device.
q
FLD
L1
– 1 . S E R V I C E C H E C K
L2
2 . P R O T E C T I O N
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
check after repair.
w
FLD
L1
1 . S E R V I C E C H E C K
L2
– 2 . P R O T E C T I O N
The protection history can be checked.
e
FLD
L1
2 . P R O T E C T I O N
L2
– 3 . R S 2 3 2 C R E S E T
Switches from 232C standby mode to normal standby mode.
r
FLD
L1
3 . R S 2 3 2 C R E S E T
L2
– 4 . O P I N F O
Operation Info for the unit can be checked.
t
FLD
L1
4 . O P I N F O
L2
– 5 . T U N E R F R Q S E T
Enables reception STEP of the ANALOG TUNER to be changed.
3.3. Canceling the mode
Press the power button to turn off the power.
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