Kenwood TS-990S Service Manual

Also see for SP-990: Instruction manual

Contents

TS-990S231TERMINAL FUNCTIONPin No. Name I/O FunctionCN466 (to Main display backlight)1 MDISPA O Power supply for main display backlightanode2 MDISPK I Power supply for main display backlightcathodeCN467 (to Main display)1 VSS - Application GND2 VSS - Application GND3 DCLK O Dot clock for main display4 VSS - Application GND5 VSS - Application GND6 R0 O Red data for main display7 R1 O Red data for main display8 R2 O Red data for main display9 VSS - Application GND10 R3 O Red data for main display11 R4 O Red data for main display12 R5 O Red data for main display13 VSS - Application GND14 G0 O Green data for main display15 G1 O Green data for main display16 G2 O Green data for main display17 VSS - Application GND18 G3 O Green data for main display19 G4 O Green data for main display20 G5 O Green data for main display21 VSS - Application GND22 B0 O Blue data for main display23 B1 O Blue data for main display24 B2 O Blue data for main display25 VSS - Application GND26 B3 O Blue data for main display27 B4 O Blue data for main display28 B5 O Blue data for main display29 VSS - Application GND30 VSS - Application GND31 VSS - Application GND32 DE O Data enable for main display33 NC - No connection34 VCC O Power supply for main display (3.3V)35 VCC O Power supply for main display (3.3V)36 VCC O Power supply for main display (3.3V)37 VCC O Power supply for main display (3.3V)38 NC - No connection39 VSS - Application GND40 VSS - Application GNDPin No. Name I/O FunctionCN468 (to Digital unit CN652)1 DCLK I Dot clock output for main display (Coaxial)Display (F1-F7 KEY) unit (X54-3850-00 C/6)Pin No. Name I/O FunctionCN501 (to Display (MAIN PANEL) unit A/6 CN259)1 LEDDIM I LED power supply2 LMONI O MONI LED (D504)3 LFBK O FBK LED (D503)4 LPROC O PROC LED (D502)5 LVOX O VOX LED (D501)6 KEYO0 I Key scan output 07 KEYO1 I Key scan output 18 KEYO2 I Key scan output 29 KEYO3 I Key scan output 310 KEYO4 I Key scan output 411 KEYO5 I Key scan output 512 KEYO6 I Key scan output 613 KEYO7 I Key scan output 714 KI0 O Key scan input 015 KI3 O Key scan input 316 KI1 O Key scan input 1Display (VOLUME) unit (X54-3850-00 D/6)Pin No. Name I/O FunctionCN502 (to Display (MAIN PANEL) unit A/6 CN267)1 GND - GND2 VCW-PCH O CWPITCH volume voltage3 VCW-MON O MONITOR volume voltage4 VC-WSPD O KEYSPEED volume voltage5 VCW-DRY O DELAY volume voltage6 VPWR O PWR volume voltage7 VCAR O CAR volume voltage8 VPROCI O PROCIN volume voltage9 VPRO-CO O PROCOUT volume voltage10 VMIC O MIC volume voltage11 VVXGIN O VOXGAIN volume voltage12 5D I 5.0V (DC/DC)