Pioneer PRS-X220, Service Manual

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PRS-X720,X320,X220
C 460 CEAS470M16
C 501 CEAS1R0M50
C 502 CEAS1R0M50
C 551 CEAS100M16
C 552 CEAS100M16
C 553 CKPUYB221K50
C 554 CKPUYB221K50
C 555 CEAS101M16
C 556 CEAS101M16
C 557 CFTLA103J50
C 558 CFTLA103J50
C 559 CCPUCH150J50
C 560 CCPUCH150J50
C 561 337RZM050M1020
C 562 337RZM050M1020
C 563 337RZM050M1020
C 564 337RZM050M1020
C 565 CMA330J2H
C 566 CMA330J2H
C 567 CFTNA333J50
C 568 CFTNA333J50
C 569 CQMA102J50
C 570 CQMA102J50
C 651 220µF/10V CCH1036
C 652 CFTLA103J50
C 653 CEAS100M16
C 654 CEAS100M16
C 655 CFTLA103J50
C 656 470µF/16V CCH1183
C 657 470µF/16V CCH1183
C 658 CEAS220M16
C 659 470µF/16V CCH1183
C 660 CFTLA105J50
C 661 CFTLA103J50
C 662 CFTLA103J50
C 851 CKSQYB471K50
C 852 CKSQYB471K50
C 853 CEAS100M16
C 854 CEAS100M16
C 855 CQMA472J50
C 856 CQMA472J50
C 857 CCSQCH470J50
C 858 CCSQCH470J50
C 859 CCSQCH470J50
C 860 CCSQCH470J50
C 861 CKSQYB471K50
C 862 CKSQYB471K50
C 863 CEAS4R7M35
C 864 CEAS4R7M35
C 865 CCSQCH470J50
C 901 3300µF/16V CCH1211
C 902 CEAS221M10
C 903 CEAS2R2M50
C 904 CEAS101M16
C 905 CQMA472J50
C 906 CQMA472J50
C 907 3300µF/16V CCH1211
C 908 478LBA035M2BD
C 909 478LBA035M2BD
C 912 CEAS470M16
C 913 CEAS470M16
C 914 CQMA102J50
C 915 CQMA102J50
C 920 CFTLA564J50
C 927 CQMA102J50
C 932 CEAS470M10
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
6. ADJUSTMENT
IDLE CURRENT ADJUSTMENT
Conditions: Terminate inputs with 1k
Ω
resistors. No load connected to output. 14.4V DC power ON for 30 seconds then
adjust.
• PRS-X720/X1R/UC
Turn power on. Measure the voltage across resistor R586. After 30 seconds from turn on of amplifier, adjust VR552 so
voltage is 4.5mV ± 0.5mV.
Repeat this step with R585 and VR551.
• PRS-X320/X1R/UC
Turn power on. Measure the voltage across resistor R588. After 30 seconds from turn on of amplifier, adjust VR552 so
voltage is 4.5mV ± 0.5mV.
Repeat this step with R587 and VR551.
• PRS-X220/X1R/UC
Turn power on. Measure the voltage across resistor R594. After 30 seconds from turn on of amplifier, adjust VR552 so
voltage is 4.5mV ± 0.5mV.
Repeat this step with R593 and VR551.