(No.WA063)8/31SECTION 2SPECIFIC SERVICE INSTRUCTIONS2.1 COMPONENTS DESCRIPTION2.1.1 ELECTRIC UNIT (X34-747x-xx)2.1.2 SWITCH UNIT (X16-743x-xx)Ref. No. Application / Function Operation / Condition / CompatibilityIC1 Power Supply IC Output 3.3V×2, 8V, 8.5V,10.5V, P-CON, P-ANTIC21 1.2V AVR IC Power supply for Back up+1.2V(to u-com)IC51 Switching Regulator Power supply for D+6V(to Power supply IC/USB5V AVR IC)IC61 Switching Regulator Power supply for D+3.3V(to BT/CD/Panel Fil)IC71 USB5V AVR IC Power supply for USB5V(to USB/2DIN Panel/SXM)IC91 Hi-side SW Detection of USB Over CurrentIC131 Muting logic IC Controls logic for mutingIC201 Power IC Amplifies the front L/R and the rear L/R to 50W maximum.IC251 E-Vol Controls the source, volume, tone.IC301 TUNER IC AM/FM radio receiver.IC302 1.2V AVR IC Power supply for D+1.2V(to Tuner IC)IC461 Level shift 3.3V to 5V(Communicates with SXM Tuner).IC462 Level shift 5V to 3.3V(Communicates with SXM Tuner).IC701 DAC3.3V AVR IC Power supply for DAC3.3V(to CD mechanism)IC801 System u-com Controls FM/AM tuner, CD mechanism, Panel, volume and tone etc.IC831 Flash ROM For memory of syscom softwareIC841 Reset IC ''Lo'' when detection voltage goes below 2.8VIC851 EEPROM For Log memory etcIC861 iPod Authentication IC For Apple authentication.Q131 SERGE Det. When Q131's base goes Hi, Serge voltage is detected.Q132 BU.Det. ON when the base goes "Hi"during BU is applied.Q133 ACC Det. ON when the base goes "Hi"during ACC is applied.Q134 ILLUMI Det. When Q105's base goes Hi, Illumi is detected.Q231,Q232 Pre-out mute SW When a base goes Hi, Pre-out is muted.Q233,Q234 Pre-out mute SW When a base goes Hi, Pre-out is muted.Q235,Q236 Pre-out mute SW When a base goes Hi, Pre-out is muted.Q237 Mute driver for PRE OUT ON when the base goes "Lo".Q402 A+5V AVR When Q402's base goes Hi, AVR outputs 5VQ701,Q702 SW3.3V SW When Q702's base goes Hi, AVR outputs 3.3VQ703,Q704 DAC3.3V SW When Q704's base goes Hi, AVR outputs 3.3VQ861 iPod3.3V SW ON when the base goes "Lo".Q901 Panel 3V SW ON when the base goes "Lo".Ref. No. Application / Function Operation / Condition / CompatibilityIC601 LCD Driver Controls LCD and KeyIC602 Remote Control Sensor Output remote signal when IR of Remote controlerIC603 LED Driver LED is controlled. (D602,603,604,605,606,607,609,610,611,608)IC604 LED Driver LED is controlled. (D608,615)Q601 Variable LED drive BLUE of D602,603,604,605,606,607 are turned on when Q601 turn on.Q602 Variable LED drive GREEN of D602,603,604,605,606,607 are turned on when Q602 turn on.Q603 Variable LED drive RED of D602,603,604,605,606,607 are turned on when Q603 turn on.
