Denon S-301 Service Manual

Also see for S-301: Brochure & specs Operating instructions Quick start Control protocol Service manual

Contents

75S-301SN74LV244APW (IC708, 719: 1U-3694) BU2090F (IC303: 1U-3681)SN74HCT244APW (IC205: 1U-3694) (IC504: 1U-3695)SN74LV157APW (IC303: 1U-3692)(IC704, 715, 720, 721: 1U-3694) SN74LVC139APWR (IC902: 1U-3694))LMS202 (IC101: 1U-3694)1234567820191816151413I3VCCOE2O2I5O0I4O1I6OEI0O4I1O5I2O69 12O7 O310 11GND I717123456781817161514131211Q3VDDOEQ7Q8Q11Q10Q9Q6VSSDATACLOCKLCKQ0Q1Q29 10Q4 Q5CONTROL CIRCUIT12-bit SHIFT REGISTER12-bt STRAGEREGISTEROUTPUTBUFFER(OPENDRAN)1A1B1Y2A2B2YGND12345678161514131211109VccST4A4B4Y3A3B3YSELECT5SEL 123456781615141312111091G1A1B1Y 01Y 11Y 21Y 3G NDV C C2G2A2B2Y 02Y 12Y 22Y 3F UNC T ION TAB LE(each decoder/demultiplexer)INP UT S OUT P UT SG S E LE C T OUT P UT SG B A Y 3 Y 2 Y 1 Y 0L L L H H H LL L H H H L HL H L H L H HL H H L H H HH X X H H H HPin Number Pin Name Pin Function1, 3 C1+, C1 External capacitor connection pins.2 V+ Positive supply for TIA/EIA-232E drivers.4, 5 C2+, C2 External capacitor connection pins.6 V Negative supply for TIA/EIA-232E drivers.7, 14 T1out, T2out Transmitter output pins conform to TIA/EIA-232E levels. The typical transmitter output swing is± 8V when loaded 3k load to ground. The open-circuit output voltage swings from (V+ 0.6V)to V8,13 R1in, R2in Receiver inputs accept TIA/EIA-2329, 12 R1out and R2out Receiver output pins are TTL/CMOS compatible10, 11 Tin1, Tin2 Transmitter input pins are TTL/CMOS compatible. Inputs of transmitter do not have pull-upresistors. Connect all unused transmitter inputs to ground15 GND Ground pin16 VS Power supply pin for the device, +5V ( ± 10%)