Input: 80 to 230V AC/50Hz 3) Output: +12V DC regulator -12V DC regulated +5V DC Regulated 4) Switching Transformer Input: 320V DC Output: 30V AC 5) Fault Section 6) Various sections to be Observed with the given Test points like ? RECTIFIER & FILTER SECTION ? POWER SWITCHING SECTION ? OUTPUT RECTIFIER & FILTER SECTION ? PWM SECTION & OPTO COUPLER SECTION.