Casio WK-1200- Manuals

— 10 — FILTER BLOCK Since the sound signals from the DAC are stepped waveforms, the filter block is added to smooth thewaveforms. DAC (IC1: UPD6379GR) The DAC receives 16-bit serial data output from the DSP. The data contains digital sound data of themelody, chord, bass, and percussion for the right...

— 12 — 3) Equipment connection/Procedure Vop voltage setting Output Set Voltmeter TP2 InputConnection InputPoint InputSignal Adjust OutputConnection OutputPoint Adjust for VR501 Voltmeter TP2 Adjust for 4.4 ± 0.1 V reading on voltmeter.Make fine adjustment accord-ing to the next instruction. Watchin...

— 13 — MAJOR WAVEFORMS 1 Clock signal SINKTest point T5 2 Clock signal FB1Test point T3 3 Clock signal FB2Test point T4 5 Key common signal KC0JC connector pin 3 6 Key common signal KC1JC connentor pin 4 7 Sound signal (LMEL)Test point T2 8 Sound signal (RMEL)Test point T1 9 Sound signal (LIN)JK con...

— 14 — PRINTED CIRCUIT BOARDS Main PCB JCM730-MA1M Sub PCB JCM730-MA2M Top View Bottom View 5 6 3 2 7 8 1 4 9 10

— 15 — SCHEMATIC DIAGRAMS Main PCB JCM730-MA1M 8 7 2 3 1 4 6 5

— 21 — EXPLODED VIEW 19 20 3 1 4 6 6 5 2 35 9 8 13 14 33 22 21 22 31 32 30 19 18 11 10 27 29 34 24 7 28 28 23 25 26 12 R-4 R-5 R-3 R-1 R-2 15 17 18 16

Notes: This parts list does not include the cosmetic parts, which p a r t s a r e m a r k e d w i t h i t e m N o . " R - X " i n t h e e x p l o d e dview.C o n t a c t o u r s p a r e p a r t s d e p a r t m e n t i f y o u n e e d t h e s eparts for refurbish. 1. Prices and specifications...