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In such
a case,
check
also
if the POWER
AMPLIFIER
circuit
or power
supply
circuit
has any
abnormalities
or not.
2-2.
Regarding
There power When
reset
that the machine does not work reset occurs, In such correctly (pressing because the STOP the MICROCOMPUTER key + POWER judgement key) is not reset is performed. is defective and check good and or even though the AC
are cases cord
is re-inserted, described
or the software phenomenon
the above
it can leads a case,
to wrong
as if the MICROCOMPUTER by the following procedure
to exchange no good @
the MICROCOMPUTER.
perform
the forced-reset
of the MICROCOMPUTER. the AC power cord.
Remove
FRONT
C.B
m
.C113
Fig-2-2
@VDD
t 1:fyjs
MICROCOMPUTER
I
@ @
Short Connect
both
ends
of the electrolytic cord again.
capacitor
Cl 13 that
is connected
to VDD returns
of the MICROCOMPUTER operation,
with
tweezers.
the AC power
If the MICROCOMPUTER
to the normrd
the MICROCOMPUTER
is good.
Note:
The
reference
number
or MICROCOMPUTER Be sure to check
pin number the reference
of transistor numbers
(Q I 10) and electrolytic diagram before
capacitor starting
(Cl 13) can change the discharging work,
depending
on the models.
on schematic
2-3.
Confirmation
Check
of soldering
state after
state
of MICROCOMPUTER
in addition to the above described procedures. Be sure to exchange the
the soldering
of the MICROCOMPUTER surely confirming
MICROCOMPUTER itself.
that the trouble
is not caused
by poor
soldering
but the MICROCOMPUTER
�6�
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