Kenwood TS-990S Service Manual
Also see for SP-990: Instruction manual
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TS-990S64SEMICONDUCTOR DATAPin No. Name I/O Function89 SDTO0 O No connection90 VDDINT - Core power (1.2V)91 GND - GND92 GND - GND93 VDDEXT - External power (3.3V)94 NC - No connection95 GND - GND96 VDDINT - Core power (1.2V)97 PDN O Power down for ADC/DAC98 SCP_RYBY I Rady/Busy signal from fl ash memory99 VDDINT - Core power (1.2V)100 GND - GND101 VDDINT - Core power (1.2V)102 GND - GND103 VDDINT - Core power (1.2V)104 GND - GND105 VDDINT - Core power (1.2V)106 GND - GND107 VDDINT - Core power (1.2V)108 VDDINT - Core power (1.2V)109 GND - GND110 VDDINT - Core power (1.2V)111 GND - GND112 VDDINT - Core power (1.2V)113 GND - GND114 VDDINT - Core power (1.2V)115 GND - GND116 VDDEXT - External power (3.3V)117 GND - GND118 VDDINT - Core power (1.2V)119 GND - GND120 VDDINT - Core power (1.2V)121 SCDRES I Reset122 SCDSCS I Serial chip select input from scope MCU123 GND - GND124 VDDINT - Core power (1.2V)125 SCDCLK I Serial clock input from scope MCU126 SCDSIN O Serial data output to scope MCU127 SCD-SOUT I Serial data input from scope MCU128 GND - GND129 VDDINT - Core power (1.2V)130 VDDEXT - External power (3.3V)131 AVDD - PLL power (1.2V)Pin No. Name I/O Function132 AVSS - PLL GND133 GND - GND134 NC - No connection135 SCP_EMU O For JTAG (no use)136 SCP_TDO O For JTAG (no use)137 SCP_TDI I For JTAG (no use)138 SCP_TRST I For JTAG (no use)139 SCP_TCK I For JTAG (no use)140 SCP_TMS I For JTAG (no use)141 GND - GND142 CLKIN I X'tal input143 XTAL O X'tal output144 VDDEXT - External power (3.3V)Extension Port IC: TC74VHC373FT(Control unit IC31)Pin No. Name I/O Function1 OE I Output enable2 SRTS O RTS signal output to scope MCU3 D0 I Data bit 04 D1 I Data bit 15 DRTS O RTS signal output to DSP MCU6 ARTS O RTS signal output to application MCU7 D2 I Data bit 28 D3 I Data bit 39 USBSW O Switch signal for USB device powerH: Active10 GND - GND11 LE I Latch enable12 RT32S O 32kHz clock out controlH: Active13 D4 I Data bit 414 D5 I Data bit 515 PRTS O RTS signal output to panel MCU16 CRTS O RS-232C request to send17 D6 I Data bit 618 D7 I Data bit 719 VRTS O RTS signal output to USB-serial bridge20 VCC - 3.3V |
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