-4-IC301SYSTEM CONTROLCHO_RXDCHO_TXDP_FAIL P_FAILON_3.3VFAN_ERRON_15VBLAST_ACBLAST_ACS5V5VA1.8VS6VIC5601D3601D3602D3603/D3604D3618/3619/3620D3608L5612D36063.3V IC5631Q3582LINE FILTERBOARDLAMP COVERSWITCHTHERMAL-SWITCHSW902LAMPBALLAST1 455 41CN02K8H 1 3K8SK6DCN01K6CK6BLAMPAC CORDK6RK6SK8RPOWERMAINQ661IC621P.F.CONTROL65184329117810210114T651D652D651D653IC651Q651D654PC641PC642ERRORAMPQ662 Power-On:HPower-On:HPower-On:HPower-On:HPower-On:HPower-On:HPower-On:HPower-On:HP-Fail:HLAMP_DET(Power-On:L) LAMP_SW(Power-On:L)P-Fail:LPC643IC631POWER OSC.FeedbackS6V15.5VS-5VDC_ONON_15VLAMPDC_ONIC4891NANDS6VS15.5V15.5VS-5V123578911IC8811TEMP. SENSOR3IC8821TEMP. SENSOR2IC8831TEMP. SENSOR11402 136632880157ON_5VA284DC_ONLAMPDC_ON727381135,134 SCL1SDA1IC9882INVERTERSW90112V9V S15.5VIC5641DDCDDCDDCFAN_A Q7812D3613D3611D36121314IC491S1.5V S3.3V_N IC161IC82912.5V IC1802S3.3V_PW S5V_PWQ5611S1.8V_PWS2.6V_PW IC56815V_AUDIO IC5081IC5601 IC5651IC564215.5VL5V_REF 15.5VD3609D3607IC3541Q2501Q2502FAN_CON_A Q7813FAN_B Q7862D3614FAN_CON_B Q7864ON_5VAON_3.3VQ3581ON_3.3VON_5VA5VA3 1K6APower supply & protection circuitChassis Block diagrams