Casio WK-1200 Manuel d'utilisateur

ELECTRONIC KEYBOARDWK-1200WK-1200REVERBGMFREESESSIONLAYERSPLITTOUCHRESPONSEMEMORY TRACK/DRUM PADHALLSTAGEROOMSYNTHMIXERMEMORYSTEPCHORD/1 2 3 4 5 6REVE

— 9 —Pin No. Terminal In/Out Function49 EOEB Out Read enable signal output for the effect RAM50 VSS3 In Ground (0 V) source60 BWEB Out Write enable si

— 10 —FILTER BLOCKSince the sound signals from the DAC are stepped waveforms, the filter block is added to smooth thewaveforms.DAC (IC1: UPD6379GR)The

— 11 —POWER AMPLIFIER (IC301: LA4620)The power amplifier is a two-channel amplifier with standby switch.616 2 10 11 1312Pre-driveAmp.InputAmp.PowerAmp

— 12 —3) Equipment connection/ProcedureVop voltage settingOutputSet VoltmeterTP2InputConnectionInputPointInputSignalAdjustOutputConnectionOutputPointA

— 13 —MAJOR WAVEFORMS1 Clock signal SINKTest point T52 Clock signal FB1Test point T33 Clock signal FB2Test point T45 Key common signal KC0JC connector

— 14 —PRINTED CIRCUIT BOARDSMain PCB JCM730-MA1MSub PCB JCM730-MA2MTop ViewBottom View563 2 7 814910

— 15 —SCHEMATIC DIAGRAMSMain PCB JCM730-MA1M872 31465

— 16 —Sub PCB JCM730-MA2M10 9

— 17 —Console PCBs JCM730-CN1M/CN2M/CN3M/CN4M

— 18 —LCD Driver PCB JCM730-LCD1M

— 1 —SPECIFICATIONSGENERALKeyboard: 73 standard-size keys, 6 octaves (with touch response on/off)Drum pads: 6Tones: 200 (128 General MIDI, 32 synthesi

— 19 —Keyboard PCBs JCM731T-KY1M/KY2M/KY3M

— 21 —EXPLODED VIEW19203146652359813143322212231323019181110272934247282823252612R-4R-5R-3R-1R-215171816

Notes: This parts list does not include the cosmetic parts, whichparts are marked with item No. "R-X" in the explodedview.Contact our spare

Item Code No. Parts Name Specification Q RMA1M PCB1 6925 8890 PCB/ASSY (MA1M) M240676*1 1 ALSI1 2012 5005 LSI,CPU GT913F(T) 1 ALSI2 2012 4494 LSI,DSP

Item Code No. Part Name Specification Q RKeyboard10 6922 2720KEY SET/LT WHITEM312118*1 5 A11 6922 2730KEY SET/LT WHITEM312118*2 1 A12 6906 8481KEYSET/

8-11-10, Nishi-ShinjukuShinjuku-ku, Tokyo 160, JapanTelephone: 03-3347-4926MA0700571A

— 2 —ELECTRICALCurrent drain with 12 V DC: No sound output 430 mA ± 20 % Maximum volume 1570 mA ± 20 %with 24 keys from C4 to C6 pressed in Ba

— 3 —BLOCK DIAGRAMKC0 ~ KC7FI0 ~ FI9SI0 ~ SI9KI0 ~ KI2PB0 ~ PB3P10, P13P14, P17Working StorageRAM (256K-bit)LSI4TC55257DFL-70L(EL)MIDIEA0 ~ EA1

— 4 —CIRCUIT DESCRIPTIONKEY MATRIXNote: Each key has two contacts, the first conatct (1) and second contact (2).KeySecond contact (2)First co

— 5 —PA0 PA1 PA2 PA3PB0FULL RANGEINTROTOUCHREVERBCHORD RESPONSEPB1 FINGEREDNORMAL/ FREE ACCOMPFILL-IN SESSION VOLUMEPB2CASIO SYNCHRO/LAYER SYNTHCHORD

— 6 —RESET CIRCUITWhen batteries are set or an AC adapter is connected, the reset IC provides a low pulse to the CPU. TheCPU then initializes its inte

— 7 —CPU (LSI1: GT-913F)The 16-bit CPU contains a 1k-byte RAM, three 8-bit I/O ports, two timers, a key controller and serial interfaces.The CPU detec

— 8 —.oNniPlanimreTtuO/nInoitcnuF08,3~13BP~0BPnIslanimrettupninottuB44BPnItupnikcaJELBANGISSA5OStuOCADehtroftuptuoataddnuoslaireS6OKCWtuOCADehtroftupt