PCB_MC4A A9■ Printed Wiring Board DiagramsThis projector is isolated from AC line by using the internal converter transformer.Please pay attention to the following notes in servicing1. Do not touch the part on hot side (primary circuit) or both parts on hot and coldsides (secondary circuit) at the same time.2. Do not shorten the circuit between hot and cold sides.3. The grounding lead must be connected to the ground of the same circuit whenmeasuring of voltages and waveforms.! CAUTIONR/C (SIDE:A) R/C (SIDE:B)CTRL (SIDE:A)1AA4B10C4860B A-SIDEA2801C2801C2802C2803C2804 D2801D2802R2801R280214K28D MAIN “K8J”B-SIDE1AA4B10C4860AA-SIDEPOWERMENU INPUTSELECTUPDOWNRIGHTLEFTLAMP_REPLACE WARNING POWER/READYR2860R2861R2862R2863R2864R2865R2866R2867R2868R2869SC2851SW6801 SW6802SW6803SW6804SW6806SW6807SW6808D6801SW6809D6802D6803D6804R6801R6802D6806R6803D6807R6804D6809R6806R6807R6808R6809D6811D6812D6813C2851C2852C2853C2854D2851D2852D2853D2854R2851R2852D2856R2853D2857R2854D2858D2859R2856R2857R2858R2859R2850D2850R2855D2855D2860D2861201921Q2861K28AQ2862Q2863 Q2864CTRL (SIDE:B)B-SIDEMAIN“K8D”