Kenwood TS-990S Service Manual

Also see for SP-990: Instruction manual

Contents

TS-990S214TERMINAL FUNCTIONPin No. Name I/O Function15 FTH2 I Final thermistor input 216 FTH1 I Final thermistor input 117 CLK O Shift register clock18 DATA O Shift register data19 GND - GND20 GND - GND21 GND - GND22 GND - GND23 ODP I Over drive protection24 33S O 3.3V power supply output25 33S O 3.3V power supply output26 33S O 3.3V power supply output27 GND - GND28 GND - GND29 GND - GND30 -12V O -12V power supply output31 5A O 5V power supply output32 5A O 5V power supply output33 NC - No connection34 GND - GND35 GND - GND36 NC - No connection37 14S O 13.8V power supply output38 14S O 13.8V power supply output39 X45V1 I X45 version detection40 X45V2 I X45 version detectionDC-DC (LINK) unit (X43-3220-00 B/3)Pin No. Name I/O FunctionCN400 (to DC-DC unit A/3 CN270)1 X45V2 O X45 version detection2 X45V1 O X45 version detection3 14S I 13.8V power supply input4 14S I 13.8V power supply input5 NC - No connection6 GND - GND7 GND - GND8 NC - No connection9 5A I 5V power supply input10 5A I 5V power supply input11 -12V I -12V power supply input12 GND - GND13 GND - GND14 THGND - GND for thermistor15 33S I 3.3V power supply inputPin No. Name I/O Function16 33S I 3.3V power supply input17 33S I 3.3V power supply input18 ODP O Over drive protection19 GND - GND20 GND - GND21 GND - GND22 GND - GND23 DATA I Shift register data24 CLK I Shift register clock25 FTH1 O Final thermistor output 126 FTH2 O Final thermistor output 227 NC - No connection28 FFANAT O AT FAN rotation pulse output29 FFANP1 O AT FAN1 rotation pulse output30 FFANP2 O AT FAN2 rotation pulse output31 MRXC I Main RX control signal32 VD O Drain voltage output terminal33 X53V2 O X53 version detection34 MFEN1 I Shift register enable signal 135 MFEN2 I Shift register enable signal 236 MFEN3 I DAC enable signal37 AFEN I Shift register enable signal38 ATPWS I AT relay operation stops when power isON39 AMD O Amplitude detector output40 PHD O Phase detector outputCN440 (to AT unit B/2 CN360)1 NC - No connection2 FAN- O AT FAN power supply (-)3 FAN- O AT FAN power supply (-)4 FFANAT I AT FAN rotation pulse input5 FAN+ O AT FAN power supply (+)6 FAN+ O AT FAN power supply (+)7 NC - No connection8 GND - GND9 GND - GND10 NC - No connection11 14S O 13.8V power supply output12 14S O 13.8V power supply output13 NC - No connection14 33S O 3.3V power supply output15 X53V2 I X53 version detection16 5M O AT coil selection17 NC - No connection18 DATA O Shift register data19 CLK O Shift register clock