PIONEER VSX-521-K 821-K 921-K AV MULTI-CHANNEL RECEIVER RRV4167 2011 SM Service Manual download, schematics, eeprom, repair info for electronics experts
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User manual Pioneer VSX-521-K (English - 120 pages)
Select 'Manual SP Setup' from the System Setup menu. - test | Pioneer VSX- 521-K | Owner's Manual (Page 31)
I just bought a pioneer av vsx-521-k receiver. I got everything hooked up ok but I can't get the on screen menu to