Aguilar_AG500_Adjustments电路图.pdf

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1、AG500 TEST PROCEDURE18 MAR, 2005 Part 1: Quality Assurance StepQA CheckAction 1MOSFETs Using feeler gauge, check that MOSFETs are flush gainst ceramic substate, and that substrate is flush against heat sink 2Thermal switch Verify that thermal switch termals are tight and that yellow wires do not tou

2、ch heat sink 3KnobsVerify all knob position 4SwitchesVerify all switches function mechanically 5LED lensesVerify all LED lenses are flush with faceplate 6AC jumpers Verify AC jumpers on AG5JK are configured correctly for the target AC voltage Part 2: Adjustments and Functional Test All AG500 AC cord

3、s go to power strip. Power strip goes to variac. No other cables connected Step 1: Voltage test AG500 AC cord in power strip and power strip to variac Slowly variac unit up to the target voltage .NOTE VARIAC NEEDLE SHOULD NOT MOVE Step 2: Trim offset at TP1Step 3: Trim offset at TP2Step 4: Short the

4、rmal switch Action: Adjust multiturn trimmer R203Action: Adjust trimmer VR1009 using special tweakerAction: Short thermal switch with neeedle nose pliers Specification: 0VDC +/- .005VSpecification: 0VDC +/- .300V set as close to 0 as possibleSpecification: Operate light goes off status light flashes RadioFans.CN 收音机爱 好者资料库