Type Identification - Cyrus 6 Service Manual

Rating label
Each Cyrus 8 carries a rating label on the rear panel, which includes details of the following:
Nominal power voltage
This will be either
AC fuse rating
The AC fuse rating is also shown on the label. If replacing the AC fuse it is essential that the
replacement fuse is exactly the same specification as the original fuse, supplied by Cyrus. All
mains fuses have a 'Timelag' blow characteristic.
Power consumption
The power consumption figure is indicated under conditions of full power drive into the rated
speaker load.
Serial number
Each Cyrus 8 carries a serial number code, which identifies the following-
Type of product
Market destination
Build number
The serial number is on the baseplate. It is therefore important to ensure that a baseplate removed
from a product is re-fitted to the same product. In any communications with Cyrus Service or
Quality departments it is essential that the full serial number is quoted so that original
specification parts and service information may be supplied.
Cyrus 8 and Cyrus 6 variants
The amplifier is available in two versions, the Cyrus 8 and the Cyrus 6. The Cyrus 8 is the higher
specification unit with a larger capacity power supply (therefore increased power output) and
extra features such as PSX-R connection.
Component differences between the two versions are-
Power transformer
AC power fuse
Rear panel rating label
DC rail fuses
PCB fuse replacement warning
PSX-R connection cable assembly
Front panel assembly
Main reservoir capacitors
Charge Pump voltage: R310, R311 links on Cyrus 6
When replacing any of the above listed components, ensure that the correct specification, original
type components for Cyrus 6 or Cyrus 8 are used.
CYRUS 6 & 8 - Type Identification
230V For use on nominal 220V - 240V AC mains supply.
115V For use on nominal 110V - 120V AC mains supply.
1 Jan 2006