3.5 Optical Unit Removal1. Remove 6 screws A (T3×8) anddisconnect terminal “K6A” on thelamp ballast board.2. Pull the Optical Unit upward offfrom the cabinet bottom.3.6 Power, Lamp Ballast, Lamp Cover SW Board Removal1. Remove the isolation plate on thepower box.2. Remove 4 screws A (T3×6) anddisconnect terminals “K6A”, “K6B”and “K6D” then remove Power Boardupward.3. Remove 4 screws B (T3×6) anddisconnect terminal "CB2” andremove the Lamp Ballast Boardupward.4. Remove 2 screws C (M2.5×6) andremove the Lamp Cover SW Board.5. Remove 4 screws D (T3×8) and pullthe power box bottom upward.Part 2: Repair Information2-8Fig. 2-9Fig. 2-10A AAA AAAAAAPower BoardLamp Ballast UnitBBBBLamp CoverSW BoardCThermalSW(SW902)DDD DIsolation plate