4-12
Samsung Electronics
■
EC08 : When the trouble is found on the part related to the wireless receiving board of
the indoor unit.
Trouble Shooting
Check point :
- Defect of wireless remote controller PCB
- Defect of wireless remote controller receiving board PCB
- Indoor unit PCB defect
YES
YES
YES
NO
NO
NO
NO
YES
YES
NO
Insert correctly
Mis-insertion of CN9?
LED direct/reverse direction check?
Check no.1 and no.2 pin of CN9:DC +5V?
Check pin no.1 of CN9 while pressing
SW91 : DC 0V?
Replace the wireless receiving board
Replace after check of indoor unit
main PCB
Wire shorted?
3-00216A(1)-TS 5/19/01 10:06 AM Page 4-12
Summary of Contents for UDH4400G
Page 5: ...1 4 Samsung Electronics Outdoor Unit Product Specifications 1420 415 930 840 385 ...
Page 17: ...2 12 Samsung Electronics MEMO ...
Page 27: ...3 10 Samsung Electronics MEMO ...
Page 51: ...4 24 Samsung Electronics MEMO ...
Page 58: ...Samsung Electronics 5 7 MEMO ...
Page 63: ...6 5 Samsung Electronics MEMO ...
Page 66: ...7 3 Samsung Electronics 7 3 Wiring Diagram 7 3 1 Indoor Unit DUCT TYPE AIRCONDITIONER ...
Page 67: ...Samsung Electronics 7 4 7 3 2 Outdoor Unit DUCT TYPE AIRCONDITIONER ...
Page 68: ...7 5 Samsung Electronics 7 4 PCB Diagrams 7 4 1 Indoor Unit PD DH3200 08 ...
Page 71: ...Samsung Electronics 7 8 Parts list 7 4 2 Outdoor Unit PD DH3200 S4 ...
Page 74: ...7 11 Samsung Electronics 7 6 Circuit Diagrams 7 6 1 Wired Remote Controller ...
Page 75: ...Samsung Electronics 7 12 7 6 2 Centralized Controller ...
Page 76: ...7 6 3 Indoor Unit Samsung Electronics 7 13 ...
Page 77: ...7 6 4 Outdoor Unit 7 14 Samsung Electronics ...
Page 79: ...ELECTRONICS Samsung Electronics Co Ltd Apr 2001 Printed in Korea Code No DB81 00216A 1 ...