Owner's Manual

-2-3-
2.
Power check
Insert
battery
When
pressing play key,
EL
lisghts?
L403
voltage
is 1.5V?
When
pressing play key,
one of L403
pins
does normal
switching?
(about
3.2V
on/off)
C422 +
votage
is 1.4V
C419+
voltage
is 3V?
Power is
supplied
to IC461?
Power is
supplied
to IC461?
EL PAD cold solder or Back
Light
defective.
CN401, CN402, PN401, PN402,
CN462
soldering
check
IC461 related circuit check
Q461
related
part
check
No
voltage part
short check
IC401 or
3V,
1.3V related
part
short check
Check
path
from
battery
to L403.
LCD
displays
normal
initial screen?
OK
YES
YES
YES
YES
YES
YES
YES
YES
NO NO
NO
NO
NO
NO
NO