18
Sep.2004
Always check the battery after repairing or servicing
the product.
Skipping directly to the desired test
• Enter Test mode.
• The FLASH ROM check will occur automatically, and if there is no
problem, all LEDs other than “PEAK” will light.
• Follow the procedure described in the section for the test you want to
perform.
In order to perform “5. GUIDE volume check,” you must
first perform “4. LEVEL volume check.”
Exiting Test mode
• Disconnect the plug from the ADAPTOR jack to turn off the power.
Cautions
After repairing or servicing the product, you must check all test items.
Summary of Contents for Boss RC-20XL
Page 3: ...3 RC 20XL...
Page 4: ...4 Sep 2004 LOCATION OF CONTROLS fig panel 19 30 31 31 30...
Page 21: ...21 RC 20XL...
Page 23: ...24 Sep 2004 CIRCUIT BOARD JACK View from components side View from foil side...
Page 24: ...25 RC 20XL...
Page 27: ...30 Sep 2004...