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When the ba ery is being charged, one can use the headphone amp. However, in circum-
stances as such the charging would take longer. It is recommended that the ba ery is charged
with the headphone amp turned off.
When, a er the charger is plugged in, the yellow charging LED does not light up, nor does
the green LED become ac ve, this may mean that your charger, charging cable, or charging port
has been damaged, or that the cable is plugged in improperly, or that the ba ery is unplugged.
In the worst-case scenario, the above symptoms may mean that the headphone amp has been
damaged. In a situa on as such, try unplugging and plugging in the charging cable.
Alterna vely, you could also use another compa ble charger.
Note:
It is not recommended to plug the instrument into the PC USB port, as most of these ports do
not provide a current that has proper charging parameters for the ba ery applied. If one does
this, that may extend the charging me significantly.
Tip:
The internal ba ery may also be charged with the use of an external power-bank providing 5V/1A
charging power. To provide a full charge, at least 2500 mAh power bank is required. The power
bank could be used as an alterna ve charging unit in places where no mains access is available. It
is also possible to use another charger that has output parameters equivalent to the charger that
comes with the instrument (5V, 1A) and has been fi ed with a USB type C plug.
Important!
The USB type C port is used solely for charging the ba ery. It is not used as an audio output.
Ba ery Opera on - Remarks
The instrument u lizes a 3.7V Li-Po (Lithium-Polymer) ba ery, with a capacity of 1,400 mA.
The ba ery features PCM safeguards, protec ng from excessive deple on and overcharging,
which guarantees op mal life me for the ba ery.
The ba ery would retain its baseline performance over ca. 500 charge-discharge cycles.
Should a no ceable performance and capacity drop occur, the ba ery should be replaced by
a specialized technician or service, or the user should get in touch with Mayones.
Note: The electronics in the instrument may only be powered by the 3.7V ba ery which is the
same as the original. Using any other cell may damage the circuitry, or even lead to an explosion of
the ba ery which may consequently cause fire and/or injury.
Note: For safety reasons, the replacement of an old ba ery should only be done by a qualified
guitar tech, business, or professional. Carelessly handling the lithium-polymer ba ery may create
a risk of the ba ery being damaged which may lead to a fire and/or serious injuries.
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Mayones Musashi Nitōryū 2.0 Preamp - User Manual
www.mayones.com
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