Roland GR-77B Replacement Parts

Browse 37 replacement parts for the Roland GR-77B (1986). The GR-77B is a bass guitar synthesizer that holds 64 programs.

Parts for this model

• AC power socket, 2-blade
• Battery, 3V Lithium
• IC, 4011 quad gate
• IC, 4028 decoder
• IC, 4051 multiplexer chip
• IC, 4052 multiplexer switch
• IC, 4066 quad bilateral switch
• IC, 74LS00N quad gate
• IC, 74LS04 hex inverter
• IC, 74LS138 decoder/demultiplexer
• IC, 74LS174 flip-flop
• IC, 74LS27 triple NOR gate
• IC, 74LS273 flip-flop
• IC, 74LS32N quad gate
• IC, 74LS367 buffer/line driver
• IC, 74LS393 dual binary counter
• IC, 74LS74 dual flip-flop
• IC, HM6116ASP-12 or MB8416A SRAM chip
• IC, IR3R05 VCA/VCF chip
• IC, M5218L or M5218AL op amp
• IC, MM5437N noise generator
• IC, MN3009 BBD
• IC, MN3101 BBD clock driver
• IC, TC40H000P quad NAND gate
• IC, TL064 quad op amp
• Memory cartridge, Roland M-64C
• MIDI jack, female
• Phone jack, 1/4-inch, 3-pin PCB mount
• Power cord, 2-blade
• Pushbutton tact switch, 7.3mm, 4-pin
• Pushbutton tact switches, set of 10
• Slide switch, 3-position
• Transistor, 2SA798
• Transistor, 2SB507 or NTE153 or 2SB1015
• Transistor, 2SC1583
• Transistor, 2SD880
• Transistor, 2SK30A-O