FT-1500M_align

1500M SERVICE MENU ALIGNMENT INSTRUCTIONSAlignmentIntroductionO RF Signal Generator with calibrated output level at 200The FT-1500M has been carefully aligned at the facto-MHzry for the specified performance across the amateur band.O Deviation Meter (linear detector)Realignment should therefore not be necessary except inO AC Voltmeterthe event of a component failure.All component replace-OSINAD Meterment and service should be performed only by an autho-OInline Wattmeter with 5%accuracy at 200 MHzrized Yaesu representative,or the warranty policy maybe voided.Regulated DC Power Supply:adjustable from9 to 16.5VDC,15AThe following procedures cover the sometimes critical50-Ohm Non-reactive Dummy Load:100 W at 200 MHzand tedious adjustments that are not normally requiredonce the transceiver has left the factory.However,if dam-OFrequency Counter:0.1 ppm accuracy at 200 MHzOAF Signal Generatorage occurs and some parts are replaced,realignment mayO DC Voltmeter:high impedancebe required.If a sudden problem occurs during normalOVHF Sampling Coupleroperation,it is likely due to component failure;realign-OAF Dummy Load:4-Ohms,5Wment should not be done until after the faulty componenthas been replaced.Alignment Preparation PrecautionsWe recommend that servicing be performed only byA dummy load and inline wattmeter must be connect-authorized Yaesu service technicians who are experienceded to the main antenna jack in all procedures that call forwith the circuitry and fully equipped for repair and align-transmissior.,except where specified otherwise.Correctment.Therefore,if a fault is suspected,contact the dealeralignment is not possible with an antenna.After complet-from whom the transceiver was purchased for instructionsing one step,read the following step to determine wheth-regarding repair.Authorized Yaesu service technicianser the same test equipment will be required.If not,re-realign all circuits and make complete performance checksmove the test equipment (except dummy load and watt-to ensure compliance with factory specifications after re-meter,if connected)before proceeding.placing any faulty components.Those who do undertakeCorrect alignment requires that the ambient tempera-any of the following alignments are cautioned to proceedture in the repair shop be the same as that of the trans-at their own risk.Problems caused by unauthorized at-ceiver and test equipment,and that this temperature betempts at realignment are not covered by the warrantyheld constant between 20 and 30C (68~86F).Whenpolicy.Also,Yaesu must reserve the right to change cir-the transceiver is brought into the shop from hot or coldcuits and alignment procedures in the interest of improvedair it should be allowed some time for thermal equaliza-performance,without notifying owners.Under no circum-tion with the environment before alignment.If possible,stances should any alignment be attempted unless thealignments should be made with oscillator shields andnormal function and operation of th