FCC filing: https://fcc.report/FCC-ID/PK8KT-5010/

Has a schematic

Video ASIC KORI TECH KKT-V9810S QFP160

KT-FJALLFNT2 TSOP48

Fujitsu MB3516A 0344 SOP24

MIDI Synthesizer dream 55581A 0345 3H3722 SAM9703 QFP100

Sub Memory KT-SJP400GS50 TSOP48

Flash ROM Operating System Storage Device HYUNDAI KOR HY29F040AC-70 0023A PLCC32

SRAM Main Memory AMIC LP62S2048X-7OLLT TSOP32

EliteMT LP62S1024AV-70LLT TSOP32

KT-VGJP3250 TSOP48

CPU MC68SEC000FU16 OL90M QCJ0349 QFP64

Wavetable ROM SO24012 KT-9703GS32 (c) 2F128702 SOP44

SRAM Main Memory for Musical Instrument Composition AMIC LP62S161288V-70LLT SOP44

ROMs could be MX29LV320TC K3N6V(U)1000E-YC