To Next PageTo Next PageWhat to do if my Panasonic SU-HTB550GK subwoofer (SB-HWA520) has no sound?
If your Panasonic Home Cinema speakers' subwoofer (SB-HWA520) isn't producing any sound, examine the wireless connection between the main unit and the subwoofer.
Why does my Panasonic SU-HTB550GK subwoofer (SB-HWA520) sound skip?
If the subwoofer (SB-HWA520) sound skips, check for radio wave interference from other wireless equipment operating in the 5.2GHz band.
General| Brand | Panasonic |
|---|---|
| Model | SU-HTB550GK |
| Category | Home Cinema speakers |
| Language | English |
General safety advice for servicing, including leakage current checks.
Procedures for checking leakage current to prevent shock hazards.
Protecting sensitive components from ESD during handling and repair.
Cautions for repair work, including lead-free solder guidelines.
Overview of service manual content and procedures for ordering parts.
Explanation of VIERA Link feature for system control and connectivity.
Description of buttons, indicators, and terminals on the main unit.
Explanation of system status indicated by LEDs during operation.
Functions of buttons on the remote control for system operation.
Guide for connecting the system to TV and other audio/video devices.
Steps to enter and use service modes for diagnostics and settings.
Troubleshooting using LED blinking patterns to identify system errors.
Visual guide to disassembling the main unit, speakers, and subwoofer.
Step-by-step instructions for disassembling the main unit's components.
Step-by-step instructions for disassembling the front speaker units.
Step-by-step instructions for disassembling the active subwoofer.
Procedures for checking and repairing main unit PCBs (Side A and B).
Procedures for checking and repairing active subwoofer PCBs.
Simplified block diagram showing system architecture and data flow.
Diagram illustrating the power supply stages and voltage distribution.
Detailed block diagram of the system's control logic.
Diagram illustrating the HDMI signal path and components.
Diagram showing the audio signal path and processing.
Detailed diagrams of the power supply circuits (1/2 and 2/2).
Diagram showing internal wiring connections for the main unit.
Diagram showing internal wiring connections for the active subwoofer.
Key for symbols, lines, and component notations used in schematics.
Detailed circuit diagrams for the main unit's various sections.
Detailed circuit diagrams for the active subwoofer's sections.
Visual representation of component placement on main unit PCBs.
Visual representation of component placement on subwoofer PCBs.
Standard voltage values for key points on the main unit PCBs.
Visual representations of signal waveforms at specific test points.
Lists of mechanical components and their part numbers for replacement.
Lists of electrical components and their part numbers for replacement.
