Kenwood TS-990S Service Manual

Also see for SP-990: Instruction manual

Contents

TS-990S71SEMICONDUCTOR DATAPin No. Name I/O Function42 GND - GND43 VDDINT I Internal (core) supply voltage (1.2V)44 DATA4 I/O Data bus for fl ash memory45 DATA5 I/O Data bus for fl ash memory46 DATA2 I/O Data bus for fl ash memory47 DATA3 I/O Data bus for fl ash memory48 DATA0 I/O Data bus for fl ash memory49 DATA1 I/O Data bus for fl ash memory50 VDDEXT I External (I/O) supply voltage (3.3V)51 GND - GND52 VDDINT I Internal (core) supply voltage (1.2V)53 VDDINT I Internal (core) supply voltage (1.2V)54 GND - GND55 VDDEXT I External (I/O) supply voltage (3.3V)56 ADDR0 O Address bus for fl ash memory57 ADDR2 O Address bus for fl ash memory58 ADDR1 O Address bus for fl ash memory59 ADDR4 O Address bus for fl ash memory60 ADDR3 O Address bus for fl ash memory61 ADDR5 O Address bus for fl ash memory62 GND - GND63 VDDINT I Internal (core) supply voltage (1.2V)64 GND - GND65 VDDEXT I External (I/O) supply voltage (3.3V)66 ADDR6 O Address bus for fl ash memory67 ADDR7 O Address bus for fl ash memory68 ADDR8 O Address bus for fl ash memory69 ADDR9 O Address bus for fl ash memory70 ADDR10 O Address bus for fl ash memory71 GND - GND72 VDDINT I Internal (core) supply voltage (1.2V)73 GND - GND74 VDDEXT I External (I/O) supply voltage (3.3V)75 ADDR11 O Address bus for fl ash memory76 ADDR12 O Address bus for fl ash memory77 ADDR13 O Address bus for fl ash memory78 GND - GND79 VDDINT I Internal (core) supply voltage (1.2V)80 AVSS - GND81 AVDD I Analog supply voltage (1.2V)82 GND - GND83 CLKIN I System clock input (24.576MHz)84 XTAL O System clock output (24.576MHz)85 VDDEXT I External (I/O) supply voltage (3.3V)86 GND - GNDPin No. Name I/O Function87 VDDINT I Internal (core) supply voltage (1.2V)88 ADDR14 O Address bus for fl ash memory89 GND - GND90 VDDEXT I External (I/O) supply voltage (3.3V)91 ADDR15 O Address bus for fl ash memory92 ADDR16 O Address bus for fl ash memory93 ADDR17 O Address bus for fl ash memory94 ADDR18 O Address bus for fl ash memory95 GND - GND96 VDDEXT I External (I/O) supply voltage (3.3V)97 ADDR19 O Address bus for fl ash memory98 ADDR20 O Address bus for fl ash memory99 ADDR21 O Address bus for fl ash memory100 ADDR23 O No connection (low level output)101 ADDR22 O No connection (low level output)102 nMS1 O Chip enable for fl ash memory103 nMS0 O Output enable for buffer IC104 VDDINT I Internal (core) supply voltage (1.2V)105 VDDINT I Internal (core) supply voltage (1.2V)106 GND - GND107 VDDEXT I External (I/O) supply voltage (3.3V)108 nSDCAS O No connection (high level output)109 nSDRAS O No connection (high level output)110 SDCKE O No connection (high level output)111 nSDWE O No connection (high level output)112 nWR O Write enable for fl ash memory113 SDA10 O No connection (low level output)114 GND - GND115 VDDEXT I External (I/O) supply voltage (3.3V)116 SDCLK0 O No connection117 GND - GND118 VDDINT I Internal (core) supply voltage (1.2V)119 nRD O Output enable for fl ash memory120 ACK I No connection (internal pull up)121 PDN O Power down for ADC/DAC122 FLAG2 I VDDEXT connect123 FLAG1 I VDDEXT connect124 SDRET I Communication request to SRX-DSP125 SDMO-SI1 O Audio serial I/F (data) for TXMRX-DSP126 GND - GND127 VDDINT I Internal (core) supply voltage (1.2V)128 GND - GND129 VDDEXT I External (I/O) supply voltage (3.3V)130 SDMI-SO1 I Audio serial I/F (data) form TXMRX-DSP