ROLAND DR-110
Service Manual

*----====----====----====----====----* Roland Boss DR-110 Dr Rhythm Graphic SERVICE MANUAL DOCUMENTS <------------------------------------> From the DR-110 Information Homepage @ http://members.aol.com/leviathant/dr110.html Since you've taken the time to read this, I'd much appreciate it that if you do some kind of nifty (or even minimal) modification to the DR-110, please email me and let me know what you've done, and if you'd be so kind to provide schemes and/or instructions as a sort of 'thanks for letting me have the DR-110 schemes Matt' kind of gesture. Please send em to [email protected] and let me know if you would mind if I posted them publicly on the same web site that these schemes are available from. Enjoy, happy modding! Oh, here's the parts list, painstakingly hand typed by myself. IC_____________________15179122 HD44790a44P 2k x 4bit CMOS CPU with LCD driver 15179305 (mu)PD444C 1k x 4bit static RAM 15159140h0 HD14006BP 18-bit static shift register 15159104h0 HD14011BP quadruple 2-input NAND gate 15159116TO TC4069UBP Hex inverter 15159117H0 HD14070bp quadruple exclusive-OR gate 15189102 NJM4558DD OP amp (pcb 2291084302-UP) 15199521 M51501L Power amp (pcb 2291084302-UP) 15199517 LM-386N-1 Power amp (pcb up to 2291084300) TRANSISTOR_________________15119125 2SA1115-F 15119602 2SB647-C 15119607 2SB642-R 15129137 2SC2603-F 15129145 2SC945-K (or 2SC1815-BL) DIODE___________________ 15019125 1ss-133 15019530 s5500g 15129137 RD6.8eb-2 zener 15019138 DAN 201 diode array 15019139 DAP 201 diode array