
Samsung Electronics
5-6
Troubleshooting
5-2-6 If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis)
1) Troubleshooting
procedure
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 collector 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?
YES
NO
NO
NO
YES
YES
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
DB98_06187A(2)_1 2/19/03 2:50 PM Page 4-4
Содержание MC18AC2-09
Страница 3: ...MEMO Samsung Electronics 1 2 ...
Страница 21: ...MEMO Samsung Electronics 3 14 ...
Страница 25: ...MEMO Samsung Electronics 4 4 ...
Страница 38: ...MEMO Samsung Electronics 5 13 ...
Страница 49: ...MEMO Samsung Electronics 6 11 ...
Страница 51: ...Samsung Electronics 8 1 8 PCB Diagrams 8 1 ASS Y MAIN PCB DB93 01018A TOP PATTERN ...
Страница 53: ...Samsung Electronics 8 3 8 2 ASS Y MAIN PCB DB93 01018A BOTTOM PATTERN ...
Страница 55: ...MEMO Samsung Electronics 8 5 ...
Страница 56: ...Samsung Electronics 9 1 9 Wiring Diagrams 9 1 Indoor Unit ...
Страница 57: ...Samsung Electronics 9 2 9 2 Outdoor Unit ...
Страница 58: ...9 3 Samsung Electronics MEMO ...
Страница 59: ...Samsung Electronics 10 1 10 Schematic Diagrams 10 1 Indoor Unit ...
Страница 60: ...MEMO 10 2 Samsung Electronics ...
Страница 62: ...ELECTRONICS Samsung Electronics Co Ltd Feb 2003 Printed in Korea Code No DB98 06187A 2 ...