Sharp SD-AT1000 Service Manual

Also see for SD-AT1000: User guide Service manual

SD-AT1000– 52 –IC701 RH-iX0558AWZZ: System Microcomputer (IX0558AW) (2/2)Input/OutputPort NamePin No. FunctionTerminal Name44 P54/FLD44 STEREO_LED Output Stereo indicator. "H" (OPEN): OFF "L": ON45 P53/FLD43 COD_DO Input/Output Codec data output.46 P52/FLD42 COD_DI Output Codec data input.47 P51/FLD41 COD_CLK Output Codec clock output.48 P50/FLD40 COD_CSN Output Codec chip select.49 P47/FLD39 VOL_DA Output Data and latch output for electronic.50 P46/FLD38 VOL_CL Output CLK output for electronic VOL IC control signal.51 P45/FLD37 DIG_FUNC +B Output Ext DIG IN ON/OFF control. H: DIG IN ON52 P44/FLD36 NON_PCM Input Audio PCM monitoring input."L": AUDIO PCM "H": NON AUDIO PCM53 P43/FLD35 AC_RLY Output Main trans ON/OFF control by relay.54 P42/FLD34 SP_RLY Output Speaker output control by relay. H: RELAY ON55 P41/FLD33 CONFIG Output Config setting output subwoofer."YES" (CONFIG1) WITH "H""NO" (CONFIG2) WITH "L"56 P40/FLD32 BASS_SW Output Subwoofer amp gain control output."H": BASS OFF "L": BASS ON57* P37/FLD31 NO USE Input Not used.58-73 P36/FLD30-P07/FLD15 SEG16-SEG1 Output FL segment.74-80 P06/FLD14-P00/FLD8 DIG15-DIG9 Output FL digit driver.81-88 P27/FLD7-P20/FLD0 DIG8-DIG1 Output FL digit driver.89 VEE VEE Input VLOAD -35 V.90 PB6/SIN1 L_MUTE Output VCR out audio mute output. H: MUTE ON L: MUTE OFF91 PB5/SOUT1 W_S_MUTE Output Subwoofer speaker S-MUTE output."H": MUTE ON "L": MUTE OFF92 PB4/SCLK11 F_S_MUTE Output Front speaker S-MUTE output."H": MUTE ON "L": MUTE OFF93 PB3/SSYB1 C_S_MUTE Output Center speaker S-MUTE output."H": MUTE ON "L": MUTE OFF94 PB2/SBUSY1 S_S_MUTE Output Surround speaker S-MUTE output."H": MUTE ON "L": MUTE OFF95 PB1/SRDY1 S_MUTE Output Audio mute output. H: MUTE ON96 PB0/SCLK12/SVIN/DA TIMER_LED Output Timer stand-by LED. "H": ON "L": OFF97 AVSS GND Input A/D analog GND.98 VREF VREF Input A/D reference voltage 5 V.99 PA7/AN7 AREA Input A/D input, destination setting input.H: AUDTTION MODEL L: NORMAL100 PA6/AN6 KEY1 Input A/D input, main set key.In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.All manuals and user guides at all-guides.com