Samsung Electronics
5-6
5-2-6 If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis)
1)
Troubleshooting pro c e d u re
Troubleshooting
Remove power cord and plug in again approx. 5 Seconds
Is operation lamp blinking?
Check as in the procedure “NO Power
parts”. Refer to page 5-2.
Normal
Replace battery.
LCD is faulty.
Replace button.
Micom is faulty.
Receiver module is faulty.
Q601(C4375Y) or Q602(C1623Y) is
faulty.
IR LED(CL-1L5EU) is faulty.
“ “ sound heard from the indoor unit when
ON/OFF button on the remote control unit
pushed?
Voltage of battery less than 2.5V (Remote Control Unit)?
LCD display status of REMOCON normal?
Voltage at PIN #30 of Remocon Micom change?
Voltage at collecter of Q601 or Q602 change?
Voltage at pin #26 of micom (IC04) change (INDOOR UNIT)?
Micom (IC04) is faulty.
Transmission display lamp ( ) blinking
when ON/OFF button on the remote control unit
pushed?
Summary of Contents for US07A1VE
Page 2: ... Samsung Electronics Co Ltd FEB 1997 Printed in Korea Code No DB81 10122A 1 ...
Page 4: ...1 2 Samsung Electronics MEMO ...
Page 27: ...Samsung Electronics 3 14 MEMO ...
Page 42: ...Samsung Electronics 6 1 6 Exploded Views and Parts List 6 1 Indoor Unit ...
Page 44: ...Samsung Electronics 6 3 6 2 Outdoor Unit 24 1 24 25 25 2 25 1 25 3 25 4 25 5 18 18 1 19 ...
Page 48: ...6 7 Samsung Electronics MEMO ...
Page 50: ...Samsung Electronics 8 1 8 PCB Diagrams 8 1 a Main PCB 7000Btu DB93 10483A ...
Page 52: ...Samsung Electronics 8 3 8 1 b Main PCB 9000 12000Btu 12000BUT DB93 10471A 9000BUT DB93 10485A ...
Page 55: ...Samsung Electronics 9 1 9 Wiring Diagrams 9 1 Indoor Unit ...
Page 57: ...Samsung Electronics MEMO ...
Page 58: ...Samsung Electronics MEMO ...
Page 59: ...10 1 10 Schematic Diagrams 10 1 Indoor Unit Samsung Electronics ...
Page 60: ...Samsung Electronics 10 2 10 2 Remote Control ...