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Yamaha PSR-1000 Service Manual
Yamaha PSR-1000 Service Manual Contents: specifications, panel layout, circuit board layout, disassembly procedure, lsi pin description, ic block diagram, circuit boards, test program, system reset, midi implementation chart, midi data format, parts list, block diagram, overall circuit diagram

Yamaha PSR-170 Service Manual
Yamaha PSR-170 Service Manual Contents: specifications, panel layout, block diagram, circuit board layout & wiring, disassembly procedure, lsi pin description, ic block diagram, circuit boards, test program, midi implementation chart, overall circuit diagram

Yamaha PSR-175 Service Manual
Yamaha PSR-175 Service Manual Contents: specifications, panel layout, circuit boards, overall circuit diagram, midi implementation chart, parts list

Yamaha PSR-2000 Service Manual
Yamaha PSR-2000 Service Manual Contents: specifications, panel layout, circuit board layout, disassembly procedure, lsi pin description, ic block diagram, circuit boards, test program, system reset, midi implementation chart, midi data format, parts list, block diagram, overall circuit diagram

Yamaha PSR-520 Service Manual
Yamaha PSR-520 Service Manual Contents: specifciations, panel layout, circuit board layout, block diagram, disassembly procedure, LSI pin description, IC block diagram, circuit boards, test program, intialization, midi datat format, midi inplementation chart, overall circuit diagram, parts list

Yamaha PSR-60 Service Manual

Yamaha PSR-620 Service Manual
Yamaha PSR-620 Service Manual Contents: specifciations, panel layout, circuit board layout, block diagram, disassembly procedure, LSI pin description, IC block diagram, circuit boards, test program, intialization, midi datat format, midi inplementation chart, overall circuit diagram, parts list

Yamaha PSR-740 Schematic Diagram
Yamaha PSR-740 Schematic Diagram Contents: Block Diagram, LSI Pin Description, Test Program, Alert Message List, Schematic Diagram

Yamaha PSR-A1000 Service Manual

Yamaha PSR-E203 Service Manual

Yamaha PSR-E213 Service Manual
Yamaha PSR-E213 Service Manual Contents: specifications, panel layout, circuit board layout & wiring, block diagram, disassembly procedures, lsi pin description, ic block diagram, circuit boards, test program, midi implementation chart, midi data format, parts list, overall circuit diagram

Yamaha PSR-E303 Service Manual
Yamaha PSR-E303 Service Manual Contents: specifications, panel layout, circuit board layout & wiring, block diagram, disassembly procedure, lsi pin description, ic block diagram, circuit boards, test program, backup & initialization, transferring data between the psr-e303 and a computer, midi implementation chart, midi data format, parts list, overall circuit diagram

Yamaha PSR-S550 Service Manual Digital Workstation
Yamaha PSR-S550 Service Manual Contents: specifications, panel layout, circuit board layout & wiring, extension cable for service use, block diagram, disassembly procedure, lsi pin description, ic block diagram, circuit boards, test program, initialization, data backup, system booting flow chart, midi implementation chart, midi data format, parts list, overall circuit diagram

Yamaha PSR-S550B Service Manual Digital Workstation
Yamaha PSR-S550B Service Manual Contents: specifications, panel layout, circuit board layout & wiring, extension cable for service use, block diagram, disassembly procedure, lsi pin description, ic block diagram, circuit boards, test program, initialization, data backup, system booting flow chart, midi implementation chart, midi data format, parts list, overall circuit diagram

Some of the new manuals added today.  (View All New) Ricoh DF61 (A548) Parts Catalog Philips MC-200 Service Manual all versions Micro System Philips MC-200 Service Manual Contents: Handling chip components, Technical specification, Service tools, Service measurement setup, Connections and controls, Disassembly diagram, Service Test Program, Pin description of ICs, Set block diagram, Set wiring diagram, circuit diagram, layout diagram, Exploded view (main set), Mechanical partslist, Exploded view diagram (tape deck), Electrical partslist Sansui R-5 Service Manual Stereo Receiver Sansui R-5 Service Manual Contents: block diagram, adjustments, block diagram of IC, parts location & parts list, other parts, schematic diagram, replacement of dial cord, packing list, accessory list Sansui R-5L Service Manual Stereo Receiver Sansui R-5L Service Manual Contents: block diagram, adjustments, block diagram of IC, parts location & parts list, other parts, schematic diagram, replacement of dial cord, packing list, accessory list Sony ST-H2750 Service Manual This set is the tuner section in MHC-2750 Sony ST-H2750 Service Manual Contents: servicing notes, general, electrical adjustment, block diagram, schematic diagrams, printed wiring boards, pin description, semiconductor lead layouts, exploded view, electrical parts list