CYRUS CD6s FAULT FINDING/DISASSEMBLY
© Cyrus Audio Ltd Nov 2006 9 Cyrus CD6s Service Manual Issue 2
assembly. The only part available for service of this PCB is the remote eye. If there are other
faults with this PCB it will be necessary to replace the PCB assembly.
Removing the power transformer
The power transformer is mounted on a pin fixed to the side cheek of the loading mechanism
subframe. To remove the power transformer it is first necessary to remove the disc loading
mechanism as detailed above, then remove the subframe. The power transformer may then be
unplugged from the mains inlet PCB and main PCB and lifted off the pin on the subframe.
Audio Signal faults
If the disc is reading but with no audio, check for valid digital audio data on connector CD901
of the servo PCB. These signals can be found on pins SCLK, WCLK, DATA. If these signals
are present, then the fault is on the main PCB.
No response to MC-Bus
The CD6s should auto power via the MC-Bus when selecting CD as the source from a Cyrus
pre-amp or integrated amp. If the MC-Bus system is not working correctly, see the MC-Bus
section in this Service Manual.
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