The Agilent/Keysight 08563-60064 is a switch mode power supply board assembly engineered for the 8563E, 8564E, and 8565E spectrum analyzers. This component delivers regulated DC power to the host instrument’s circuitry through a dual-function topology: low-voltage regulator feedback integrated with a switching controller via optical coupler isolation. The board handles 180 W power demand and operates from both 115 VAC and 230 VAC mains, making it suitable for global deployment.
Technical Specifications
• Product Type: Switch Mode Power Supply (SMPSU) Board Assembly
• Input Voltage — 115 VAC: 90–140 V rms, 3.2 A rms maximum, 47–440 Hz
• Input Voltage — 230 VAC: 180–250 V rms, 1.8 A rms maximum, 47–66 Hz
• Power Dissipation: 180 W
• Internal High-Voltage Bus: 370 VDC (lethal voltage — isolation transformer required for live testing)
• Primary Control: Remote enable/disable via pin 10 of NE5560D switch mode controller (U309); front panel on/off switch shorts transformer winding T301
• Load Requirement: Minimum load on +5 VDC supply mandatory for stable operation
– Key Features
• Optical coupler (U308) isolation between low-voltage and switching sections minimizes noise coupling
• Dual-input mains selector accommodates 115 VAC and 230 VAC operation without manual configuration
• Pin-selectable remote control integration for automated instrument sequencing
• High internal operating voltages demand careful handling during diagnostics and repair
– Typical Applications
• Direct replacement assembly for failed or degraded power supplies in 8563E, 8564E, and 8565E spectrum analyzers
• Fault analysis reference for similar SMPSU topologies in test equipment repair workflows
– Compatibility & Integration
• Direct Fit: Agilent/Keysight 8563E, 8564E, 8565E Spectrum Analyzers
• Form factor and connector pinout engineered for plug-and-play installation
