Kenwood TS-990S Service Manual
Also see for SP-990: Instruction manual
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TS-990S210TERMINAL FUNCTIONAccessory (SCOPE) unit (X42-3430-00A/10)Pin No. Name I/O FunctionCN1 (to DC-DC unit A/3 CN170)1 14S I Power supply (14V)2 GND - GND3 8A I Power supply (8V)CN2 (to RX unit A/2 CN109)1 SC08M I Main RX 8M IF signal input (Coaxial)CN3 (to TX-RX unit A/2 CN350)1 SC11S I Sub RX 11M IF signal input (Coaxial)CN4 (to TX-RX unit A/2 CN450)1 SC73S I Sub RX/TX 73M IF signal input (Coaxial)CN6 (to PLL (MAIN) unit CN20)1 SCREF I Reference 40MHz input (Coaxial)CN35 (to Control unit CN73)1 8A O 8V (DC/DC)2 NC - No connection3 GND - GND4 NC - No connection5 5A I 5V (DC/DC)6 NC - No connection7 33SD I 3.3V (DC/DC)8 X45V1 O Version detection signal9 IFSEL1 I IF select 110 IFSEL2 I IF select 211 IFSEL3 I IF select 312 IFSEL4 I IF select 413 SCATT0 I Attenuator 0 control14 SCATT1 I Attenuator 1 control15 SCATT2 I Attenuator 2 control16 SCATT3 I Attenuator 3 control17 SCPCK I Serial clock18 SCPDT I Serial data19 SCPEN1 I PLL1 (IC4) enable signal20 SCPEN2 I PLL2 (IC6) enable signal21 SCDEN1 I DDS1 (IC1) enable signal22 SCDEN2 I DDS2 (IC2) enable signal23 SCDEN3 I DDS3 (IC3) enable signal24 SCPUL O Unlock detectionCN36 (to Control unit CN453)1 SCIF O Scope IF output (24kHz)2 GND - GNDAccessory (PRESEL) unit (X42-3430-00B/10)Pin No. Name I/O FunctionCN401 (to RX unit A/2 CN26)1 PREI I RF input (Coaxial)CN402 (to RX unit A/2 CN70)1 33S I 3.3V (DC/DC)2 CLK I Serial clock3 DATA I Serial data4 PSEDA I EEPROM data output5 PSESI O EEPROM serial data input6 PSECK I EEPROM clock7 PSEEN I EEPROM enable8 PSEN I PRESEL Serial/Parallel IC enable9 PSEL I PRESEL ON10 GND - GND11 GND - GND12 X55V2 - Accessory (PRESEL) unit version control13 8A I 8V (DC/DC)14 8A I 8V (DC/DC)15 NC - No connection16 14S I 13.8V (DC/DC)CN446 (to RX unit A/2 CN53)1 PREO O RF output (Coaxial)Accessory (MIC) unit (X42-3430-00 C/10)Pin No. Name I/O FunctionCN601 (to DSP unit CN668)1 MIC O MIC signal2 MSG - MIC GND3 MCG - GNDCN602 (to Display (MAIN PANEL) unit A/6 CN264)1 MU O MIC up control2 MD O MIC down control3 SS O PTT control L: TX4 8A I 8V (DC/DC)J601 (MIC)1 MIC I MIC signal2 SS I PTT control L: TX3 MD I MIC down control4 MU I MIC up control5 8A O 8V (DC/DC)6 NC - No connection7 MSG - MIC GND8 MCG - GND |
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