Toshiba RAV-SM560AT-E Service Manual page 78

[P22 error]/[1A error]
(RAV-SM800AT-E)
Are connections of CN301 and
CN300 of P.C. board correct?
Does the fan rotate without trouble
when handling the fan with hands under condition
of removing CN301 and CN300 from P.C. board?
The status that the resistance values
between leads below are 50 to 80
for 40W motor (ICF-140-40) and 25 to 55
for 60W motor (ICF-140-60-1) is normal.
Between 1 (Red lead) and
Between (White lead) and
2
Between (Black lead) and
3
of motor winding of connector (CN301)
The status that there is
5k to 20k resistance values between
(Yellow lead) and
1
of motor position detection of
connector (CN300) is normal.
Normal fan motor
(Control or CDB P.C. board)
(Control P.C. board or CDB P.C. board)
NOTE :
However, GND circuit error inside of the motor is rarely detected even if the above check is carried out.
When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.
YES
YES
2 (White lead)
(Black lead)
3
(Red lead)
1
YES
(Pink lead)
4
YES
Objective P.C. board
Fan motor winding
Motor position detection
Fan motor winding
Motor position detection
NO
NO
* Connector of RAV-SM560AT-E differs from
NO
Defective fan motor
Single phase Single phase
RAV-SM560AT-E RAV-SM800AT-E
Control P.C. board CDB P.C. board
CN300
CN301
– 77 –
CN301
that of RAV-SM800AT-E.
CN300: Motor coil winding
CN301: Motor position detection
CN301
CN300
CN300