Denon PMA-50 Service Manual
Also see for PMA-50: Owner's manualQuick start guideQuick start guideQuick start guide
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Contents
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2.4. USB InCheck Power Supply Voltages for USB IC.MAIN PCB[IC110] : +1.2V[IC141] : +1.8V[IC162] : +3.3VCheck Digital Audio Data from USB.MAIN PCB[IC101] : See Waveforms.OKOKCheck the soldering, replace each device or MAIN PCB.[IC304] : IN:+3.3V / OUT:+1.2V[IC303] : IN:+3.3V / OUT:+1.8V[Q310] : IN:+3.3V / OUT:+3.3VCheck the soldering or replace the MAIN PCB.NGNGto 2.1. COMMON(signal)2.5. Blutooth InCheck Power Supply Voltages for BT Module.FRONT PCB[FPC502] : 7pin +3.3V[IC501] : 7pin +3.3V[IC501] : 36pin +1.8VCheck Digital Audio Data from BT IC.BT PCB[IC501] : 30pin SPDIF_OUTOKOKCheck the soldering or replace each device.[Q311] : 5 or 6pin +3.3V on MAIN PCB[IC502] : 5pin + 1.8V on FRONT PCBCheck the soldering, replace each device or FRONTPCB.[FPC502] on BT PCBNGNGto 2.1. COMMON(signal)2.6. Optical / Coaxial InCheck S/PDIF signal to DIRMAIN PCB[IC204] : 4pin Optical 1[IC204] : 6pin Optical 2[IC204] : 37pin CoaxialOKCheck the soldering or replace each device.[JK801] on MAIN PCB.[JK800] on MAIN PCB.[JK802] on MAIN PCB.[JK806] on MAIN PCB.NGto 2.1. COMMON(signal)38 |
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