Service Manual 59
Cycle Troubleshooting Guide
• Confirm that the Vertical Louver is normally geared with the shaft of Step-
ping Motor.
• If the regular torque is detected when rotating the Vertical Louver with
hands
Normal
• Check the connecting condition of CN-U/D, CN-L/R Connector
• Check the soldering condition(on PWB) of CN-U/D, CN-L/R Connector
Check the operating circuit of the Vertical Louver
• Confirm that there is DC +12V between pin
(RED) of CN-U/D, CN-L/R
and GND.
• Confirm that there is a soldering short at following terminals.
- Between
62
,
61
,
60
and
59
of MICOM
- Between
57
,
56
,
55
and
54
of MICOM
- Between
51
,
50
,
49
and
48
of MICOM
- Between
1
,
2
,
3
,
4
and
5
of CN-U/D, CN-L/R
If there are no problems after above checks
• Confirm the assembly conditions that are catching and interfering parts in
the rotation radial of the Vertical Louver
6. When Vertical Louver does not operate.
