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GX1256SPage 56
10 MAINTENANCE
The inherent quality of the solid-state components used in this transceiver
will provide many years of continuous use. Taking the following precautions
will prevent damage to the transceiver.
• Keep the microphone connected or the jack covered at all times to pre-
vent corrosion of electrical contacts;
• Never key the microphone unless an antenna or suitable dummy load is
connected to the transceiver.
• Ensure that the supply voltage to the transceiver does not exceed 16
VDC or fall below 11 VDC.
• Use only STANDARD HORIZON-approved accessories and replacement
parts.
In the unlikely event of serious problems, please contact your Dealer or our
repair facility. Address and phone numbers for this facility, as well as war-
ranty information, are contained in section 11 WARRANTY.
10.1 REPLACEMENT PARTS
Occasionally an owner needs a replacement mounting bracket or knob.
These can be ordered from our Parts Department by writing or calling:
Marine Division of Vertex Standard
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
Telephone (714) 827-7600
Commonly requested parts, and their part numbers are listed below.
• Power Cord: T9023306
• Dust Cover: RA0437900
• VOL/SQL Knob Assy: RA0422200
• Mounting Braket (White): RA0448900
• Mounting Braket (Black): RA0459200
• Mounting Braket Knob (White): RA043770A
• Mounting Braket Knob (Black): RA045910A
• Microphone Hanger (White): RA0436000
• Microphone Hanger (Black): RA0458800
• RAM+ Routing Cable: S8101512
• RAM+ Panel Mount Cap: RA0525200
• RAM+ Rubber DSC Distress Cover: RA0523200