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Verfügbare Sprachen
Verfügbare Sprachen
CHECKING THE ELECTRICAL PARTS IN THE INDOOR UNIT
|
(MODEL RAS-25QH1,RAS-32QH1,RAS-40QH1)
1.__The power cannot be turned ON (not operated at all).
NO
Is a DC
35V
voltage
generated
Is a AC
220V voltage generated] yo
between terminals A and B of the sat between terminals L and N of the
terminal board?
terminal board in the outdoor unit?
=>
Check
the indoor/outdoor
connection
\7 YES
cable and correct the abnormal state
(wrong connection, poor insertion, etc.).
Is a DC
35V
voltage
generated
between terminals A and B of the| YES
4 *
terminal board in the outdoor unit?
XY no
YES
YES
Are
jumper
cables
A
and
B ap
:
Gonriected ih. teverse?
Correct the connection.
NO
Check
the
power
circuit
and
peripherals and correct the defective
parts.
Y
j
iti
NG
- se as Pscaiehaslctied epee
a=
Check the remote controller.
(Refer
Seae.
aaa
iba
to "Checking the remote controller".) i
Replace the remote controller.
OKY
NG
NO
ls there
poor
contact
of CN2, => viata ee wires, connection of
disconnection of leads, etc.?
:
OK —
Replace the light receiving unit.
YES
Does the timer lamp blink 13 times ——
when the breaker is turned ON?
Replace iGA0t.
70
Is a DC
12V voltage
generated
Check that there is no abnormality
NO
between pins @ and © of REG1?
such
as a pattern short on the
:
P.W.B., heating of parts, etc. and
Is the control
voltage
generated
Details of
~- Recessed part
replace REG1
?
pin No.
@ _ OD
p
5
F
normally?
REG1_|
REG1 viewed
(If the output is 15V or more, it is
YES
©
©} from bottom
also abnormal.
Replace it.)
4 YES
NO
Is a DC
12V
voltage
generated =>
Check that there is no poor contact
between () and © of REG2?
of CNS.
NO
ls a
DC
5V
voltage
generated
between © and © of REG2?
NO
Is micro computer reset input (pin @)
set to Hi'?
YES
Does micro computer clock (pins ®,
(@®) oscillate normally?
Replace the control P.W.B..
Check that there is no abnormality such
as a pattern short on the P.W.B., heating
of parts, etc. and replace REG2,
Check the reset circuit and
repair
defective parts.
Replace
the micro
computer
and
oscillator.
Perform a final check of operation.
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