Kenwood KCH-16 Service Manual

Also see for KCH-16: Instruction manual Brochure & specs

Contents

Kenwood KCH-16 Service Manual Manual pdf 55 page image

KCH-1655Control unit (X53-4360-20)Pin No. Name I/O FunctionCN1 (to LCD ASSY)1 /CS O Chip select output2 /RES O LCD reset output3 A0 O Address bus 0 output4 /WR O WR bus output5 D0 I/O Data bus 06 D1 I/O Data bus 17 D2 I/O Data bus 28 D3 I/O Data bus 39 D4 I/O Data bus 410 D5 I/O Data bus 511 D6 I/O Data bus 612 D7 I/O Data bus 713 VDD O 3.3V LCD power supply output14 VSS - GND15 VDD O 3.3V LCD power supply output16 V1 - LCD drive power supply17 V2 - LCD drive power supply18 V3 - LCD drive power supply19 V4 - LCD drive power supply20 V5 O LCD drive power supplyCN2 (for production)1~10CN3 (to Control unit B/4 PTT switch)1 PTT I PTT input2 GND - GNDPin No. Name I/O FunctionCN4 (to Control unit C/4 VOL control)1 VOL GND - GND for volume level2 VOL O Volume level output for audio control3 VDD I 5V for volume levelCN5 (to Control unit D/4 Sub MIC)1 ECM I Sub MIC input2 ME - MIC GNDJ2 (MIC jack)1 KVL IDetection of KVL3000Active Low pulled up with 47k.VIH: 4.16~5.10V / VOL: –0.3~0.96V2 TRD I/OBidirection serial dataVIH: 4.16~5.10V / VIL: –0.3~0.96VVOH: 4.80~5.20V / VOL: <0.3VBaud rate: 115200bps Max3 MIC O MIC signal output4 ME - MIC GND5 PS OPower switch signal outputSW OFF: 13.0V (typ)SW ON: 0V (typ)6 E - GND7 SB ISwitched BatteryVoltage: 11.39~15.64VCurrent: 200mA max8 RESET IReset signal inputActive Low pulled down with 470k.VIH: 4.16~5.10V / VIL: –0.3~0.96VTERMINAL FUNCTION