Precautions During Service; Initializing This Unit; Service Jigs - Marantz SR5009/U1B Service Manual

PRECAUTIONS DURING SERVICE

Initializing This Unit

Initialize this unit if you have replaced the microcomputer, one of the parts around the microcomputer, or the digital PCB.
1. Press the power button to turn off the power.
2. Hold down buttons "TUNER PRESET CH -" and "TUNER PRESET CH +" at the same time and press the power but-
ton to turn on the power.
3. Release the buttons after confirming that the display flashes in intervals of approximately 1 second.
＊ The unit is initialized.
NOTE：
• If the status in step 3 does not occur, start again from step 1.
• Initializing the device restores settings configured by the user to the factory settings. Take note of your settings beforehand
and reconfigure them after initialization.

Service Jigs

The following jigs (extension cable kit) are used when repairing the PCBs.
Order the jigs from your dealer if necessary.
8U- 110084S :
(See 53 page)
X
TUNER
PRESET CH -
EXTENSION UNIT KIT
TUNER
PRESET CH +
: 1 Set
10