|ARKAM diva CD73 service manual issue_1.0.pdf||DiVA
CD73 Compact Disc player
Bringing music & movies to life
Diva CD73 Circuit description. By Andy Moore.
Overview The CD73 is a completely new design platform for Arcam although the circuit building blocks will show a passing resemblance to the earlier Diva designs; the main difference is that the mechanism control circuitry is now incorporated within the main circuit board design of the CD player. Power supply and Power supply control. The mains power supply enters the player via the IEC socket at location SK501 and is filtered by Y Caps C501 C502 and X Cap C503, resistor R501 sits between the Neutral and Positive a.c supply rails. L501 and L502 filter electromagnetic noise and reduce stray E.M.F. SW501 A/B is used to switch the primary feed to the transformer at location TX501, capacitors C504 and C505 help to prolong the life expectancy of the mains switch by reducing contact sparks. The transformer at location TX501 has multiple windings and |