Do you have a question about the Pioneer PL-990 and is the answer not in the manual?
Type | - |
---|---|
Product color | Black |
Depth | 342 mm |
---|---|
Width | 420 mm |
Height | 100 mm |
Weight | 2650 g |
Explains the turntable's integrated preamp and its utility for line-level inputs.
Details scenarios where a switch is beneficial, like vintage amp compatibility or custom preamp use.
Notes the turntable's design includes provisions for an On/Off switch on the PCB.
Guides on removing the top cover and platter to access the internal components.
Shows the PCB, highlighting the intended location for the switch and its absence.
Outlines the overall process: dismantle, jumper changes, switch installation, and reassembly.
Provides manufacturing date, origin, and model number for user reference.
Details how to detach the platter by unhooking the drive belt.
Instructions for managing movable parts like the tone arm and 45 adapter during disassembly.
Explains how to remove the turntable's bottom plastic case by unscrewing it.
Describes removing screws to gain better access to the main amplifier circuit board.
Identifies key contact points (S1, S2, S3) on the PCB relating to signal paths.
Details the removal of jumpers JR17 and JR18 that bypass the switch functionality.
Explains the process of adding jumpers (J1, J2) to connect unamplified signals.
Visual confirmation of the jumper installation for unamplified input signals.
Shows the physical installation of the new switch onto the circuit board.
Guides on reassembly and how to use the modified turntable with the new switch.