Sanyo TH3642 / CH3642, XH3642 / CH3642, XH4242 / CH4242, XH2442 / CH2442 Service Procedures

	4. SERVICE PROCEDURES
4-1 Troubleshooting		IV -	2
(1)	Check before and after Troubleshooting	IV -	3
(2)	General Troubleshooting Flow Chart: Diagnosis and Remedy	IV -	4
(3)	Meanings of alarm messages	IV -	6
(4)	LED Indication on the Outdoor Unit’s P.C.B. Ass’y	IV -	8
(5)	Symptoms and parts to inspect	IV -	9
(6)	Procedures When a Specific Component Does Not Work	IV - 19
(7)	Service Functions of Remote Controller	IV - 21
4-2 Checking the Electrical Components		IV - 30
(1)	Measurement of Insulation Resistance	IV - 30
(2)	Checking the Protective Devices	IV - 31
(3)	Checking the Electrical Parts	IV - 32
(4)	Thermistor Characteristic Curve	IV - 35
(5)	PCB Setting	IV - 36
(6)	R.C Address Setting Method	IV - 37
(7)	Automatic Address Setting Method	IV - 38
(8)	Displaying Indoor / Outdoor Unit Combination Numbers	IV - 38
(9)	Items to Check Prior to Test Run	IV - 39
(10)	Test Run	IV - 40
(11)	PCBs and Their Location	IV - 42
(12)	Checking procedure for each PC Board	IV - 44
(13)	TMX60 Pins	IV - 45

4

SM830082

IV - 1