OLED
connector
OLED
backlight
booster
circuit
5.
Cannot
save
the
data
For
the
SPI
FLASH
issues,
please
refer
to
the
A1
chip
part
in
this
section
Cannot
turn
on
the
power
.
Check
if
the
SPI
FLASH
is
properly
soldered,
or
if
the
chip
is
damaged.
6.
MIDI
issues
1)
Check
whether
MIDI
block
and
MIDI
line
are
normal.
2)
Check
if
the
MIDI
Out
circuit
is
properly
soldered.
If
the
triode
is
damaged,
replace
it.
32
Содержание Hammer 88 Pro
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