Casio CTK-620L Service Manual

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DIGITAL SIGNAL PROCESSOR (LSI2: HG51B227FB-1)
The DSP receives 16-bit serial sound data output from the CPU and adds the selected effect to the sound data
using the effect RAM. Then the DSP provides the sound data to the DAC. The DSP also controls button input/
output and GA.
The following table shows the pin functions of LSI2.
.oNniPlanimreTtuO/nInoitcnuF
67~7591AM~0AMtuOsubsserddA
87,771BSCM,0BSCMtuO
,MORecruosdnuosehtroftuptuolangiselbanepihC
PSDdnaMARgnikrow
972BSCMtuOdesutoN
08CCVnIecruosV5+
18DNGnIecruos)V0(dnuorG
28BDRMtuOMORecruosdnuosehtroftuptuolangiselbanedaeR
89~3851DM~0DMtuO/nIsubataD
99ELPtuOPSDehtroftuptuolangisteseR
00171PtuO/nIrevirdDCLehtrofsubataD
.oNniPlanimreTtuO/nI
noitcnuF
08,3~13BP~0BPnIslanimrettupninottuB
44BPnItupnikcaJELBANGISSA
5OStuOCADehtroftuptuoataddnuoslaireS
6OKCWtuOCADehtroftuptuokcolcdroW
73DDVnIecruosV5+
8TSET—desutoN
9BSERnItupnilangisteseR
012SSVnIecruos)V0(dnuorG
21,11TUOX,NIXtuO/nItuptuo/tupnikcolczHM02
31IKCWnIUPCehtmorftupnikcolcdroW
41ISnIUPCehtmorftupniataddnuoslaireS
51IKCBnIUPCehtmorftupnikcolctiB
61CNISnItupnieslupgnizinorhcnyszHM1
712DDVnIecruosV5+
52~817OI~0OItuO/nIsubataD
62BECRtuOAGehtroftuptuolangiselbanepihC
723SSVnIecruos)V0(dnuorG
821DAnIsubsserddA
92BEOtuOMARegarotsgnikrowroflangiselbanetuptuO
03BEWnIMARegartsgnikrowroflangiselbaneetirW
133DDVnIecruosV5+
232ECnI.evitcahgiH.tupnilangiselbanepihC
330DAnIsubsserddA

Casio CTK-620L Specifications

General

Brand	Casio
Model	CTK-620L
Category	Electronic Keyboard
Language	English