Kenwood KRC-591 Instruction Manual

Also see for KRC-591: Service manual

— 27 —— 27 —Make sure that the unit is installed securely in place. If the unit isunstable, it may malfunction (eg, the sound may skip).Bend the tabs of themounting sleevewith a screwdriver orsimilar utensil andattach it in place.Metal mountingstrap(commerciallyavailable)Self-tappingscrew(commerciallyavailable)Firewall or metal support■ InstallationScrew (M4X8)(commerciallyavailable)InstallationConnecting the ISO Connector (see p.26)The pin arrangement for the ISO connectors depends on the type ofvehicle you drive. Make sure to make the proper connections toprevent damage to the unit.The default connection for the wiring harness is described in 1 below.If the ISO connector pins are set as described in 2 or 3, make theconnection as illustrated.2WARNINGUnit VehicleIgnition cable (Red)Battery cable (Yellow)A–7 Pin (Red)A–4 Pin (Yellow)Unit VehicleIgnition cable (Red)Battery cable (Yellow)A–7 Pin (Red)A–4 Pin (Yellow)Unit VehicleIgnition cable (Red)Battery cable (Yellow)A–7 Pin (Red)A–4 Pin (Yellow)When the connection is made as in 3 above, the unit's power will notbe linked to the ignition key. For that reason, always make sure to turnoff the unit's power when the ignition is turned off.To link the unit's power to the ignition, connect the ignition cable(ACC...red) to a power source that can be turned on and off with theignition key.1 (Default setting) The A-7 pin (red) of the vehicle's ISO connectoris linked with the ignition, and the A-4 pin (yellow) is connected tothe constant power supply.2 The A-7 pin (red) of the vehicle's ISO connector is connected tothe constant power supply, and the A-4 pin (yellow) is linked tothe ignition.3 The A-4 pin (yellow) of the vehicle's ISO connector is notconnected to anything, while the A-7 pin (red) is connected to theconstant power supply (or both the A-7 (red) and A-4 (yellow) pinsare connected to the constant power supply).■ Screwing the Faceplate on the UnitNever insert the taptite screw (ø4 × 16 mm) in any other screw holethan the one specified. If you screw it in another hole, it will contactand may cause damage to the mechanical parts inside the unit.Accessory4If you want to fasten thefaceplate to the main unit sothat it does not fall off,screw in the providedscrews (ø4 X 16 mm) in theholes shown below.Bottom panel