Kenwood TS-990S Service Manual

Also see for SP-990: Instruction manual

Contents

TS-990S211TERMINAL FUNCTIONAccessory (USB) unit (X42-3430-00 D/10)Pin No. Name I/O FunctionCN603 (to Digital unit CN501)1 U1VBUS I VBUS 5V (USB Host 1)2 U1D+ I/O Positive universal serial data (USB Host 1)3 U1D- I/O Negative universal serial data (USB Host1)4 U1S-GND - Shield GND (USB Host 1)5 U1GND - Digital GND (USB Host 1)6 U2VBUS I VBUS 5V (USB Host 2)7 U2D+ I/O Positive universal serial data (USB Host 2)8 U2D- I/O Negative universal serial data (USB Host2)9 U2S-GND - Shield GND (USB Host 2)10 U2GND - Digital GND (USB Host 2)J604 (USB HOST 1)1 U1VBUS I VBUS 5V (USB Host 1)2 U1D- I/O Negative universal serial data (USB Host1)3 U1D+ I/O Positive universal serial data (USB Host 1)4 U1GND - Digital GND (USB Host 1)5 GND - GND6 GND - GNDJ605 (USB HOST 2)1 U2VBUS I VBUS 5V (USB Host 2)2 U2D- I/O Negative universal serial data (USB Host2)3 U2D+ I/O Positive universal serial data (USB Host 2)4 U2GND - Digital GND (USB Host 2)5 GND - GND6 GND - GNDAccessory (PHONES/PADDLE) unit (X42-3430-00 E/10)Pin No. Name I/O FunctionCN604 (to DSP UNIT CN667)1 PH1 I AF output (Lch of phone output)2 PHG - GND for phone jack3 PH2 I AF output (Rch of phone output)4 PHDET O Phone jack detection signal H: No phonejackCN605 (to Display (MAIN PANEL) unit A/6 CN265)1 DOT I Electronic keyer dot signal L: KEY dot2 DOG - Paddle jack GND3 DASH I Electronic keyer dash signal L: KEY dash4 KYSR I KEY jack/ PADDLE judgement signalL: KEY or PADDLE pluggedPin No. Name I/O Function5 NC - No connectionJ602 (PHONES)1 PHG - GND for phone jack2 PH1 O AF output (Lch of phone output)3 PH2 O AF output (Rch of phone output)4 NC - No connection5 PHG - GND for phone jack6 PHDET I Phone jack detection signal7 NC - No connection8 PHG - GND for phone jack9 PHDET I Phone jack detection signalJ603 (PADDLE)1 GND - GND2 DOT I Electronic keyer dot signal L: KEY dot3 DASH I Electronic keyer dash signal L: KEY dash4 NC - No connection5 KYSR I KEY jack/ PADDLE judgement signalL: KEY or PADDLE plugged6 DOG - PADDLE jack GND7 NC - No connection8 NC - No connection9 NC - No connectionAccessory (POW SW) unit (X42-3430-00F/10)Pin No. Name I/O FunctionCN606 (to Display (MAIN PANEL) unit A/6 CN266)1 PWS O Power switch output signal2 KI0 O Key scan input 03 KEYO7 I Key scan output 74 KEYO6 I Key scan output 65 KEYO5 I Key scan output 56 KEYO4 I Key scan output 47 KEYO3 I Key scan output 38 NC - No connection9 33B I 3.3V (DC/DC)10 NC - No connection11 LTIMER O Timer LED (D609)12 LPOFF O Power OFF LED (D610)13 GND - GND14 LPON O Power ON LED(D611)15 LAT O AT LED (D612)16 LEDDIM I LED power supply