Denon DVD-910 Service Manual

Also see for DVD-910: Operating instructions Specifications Operating instructions Service manual Operating insructions

Contents

66DVD-910Chassis or Secondary Conductordd'Primary Circuit TerminalsAC Voltmeter(High Impedance)Exposed Accessible PartB Earth GroundPower Cord Plug ProngsZ1.5k0.15 FSafety Check after ServicingExamine the area surrounding the repaired location fordamage or deterioration. Observe that screws, parts,and wires have been returned to their original posi-tions. Afterwards, do the following tests and confirm thespecified values to verify compliance with safety stan-dards.1. Clearance DistanceWhen replacing primary circuit components, confirmspecified clearance distance (d) and (d’) between sol-dered terminals, and between terminals and surround-ing metallic parts. (See Fig. 1)Table 1: Ratings for selected areaNote: This table is unofficial and for reference only.Be sure to confirm the precise values.2. Leakage Current TestConfirm the specified (or lower) leakage currentbetween B (earth ground, power cord plug prongs) andexternally exposed accessible parts (RF terminals,antenna terminals, video and audio input and outputterminals, microphone jacks, earphone jacks, etc.) islower than or equal to the specified value in the tablebelow.Measuring Method (Power ON) :Insert load Z between B (earth ground, power cord plugprongs) and exposed accessible parts. Use an AC volt-meter to measure across the terminals of load Z. SeeFig. 2 and the following table.AC Line Voltage Clearance Distance (d) (d’)120 V ≥ 3.2mm (0.126 inches)Table 2: Leakage current ratings for selected areasNote: This table is unofficial and for reference only. Be sure to confirm the precise values.AC Line Voltage Load Z Leakage Current (i) Earth Ground (B) to:120 V 0.15μF CAP. & 1.5kΩ RES.Connected in parallel i≤0.5mA Peak Exposed accessible partsFig. 1Fig. 2