1. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Basic Power Supply Circuit Half WaveHalf Wave Full WaveFull Wave Bridge RectifierBridge Rectifier

2. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Power Supply

3. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Basic Power Supply Arrangement SourceSource Line FilterLine Filter Power TransformerPower Transformer RectifierRectifier RegulatorRegulator Load Load

4. Power Source Caution and Grounding

5. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Power Supply Protection Devices FusesFuses Zener DiodesZener Diodes Circuit BreakersCircuit Breakers ResistorsResistors Thermal resistorsThermal resistors Thermal FusesThermal Fuses Other sensor devicesOther sensor devices

6. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Power Supply for typical Black and White Television

7. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Typical Full-wave Rectifier

8. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Full Wave Rectifier Circuit with Constant Voltage Transformer

9. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Typical Bridge Rectifier Power Supply

10. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Closed Loop Regulated Power Supply

11. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Low Voltage Supply to the Flyback Transformer

12. Television Circuit UEAB 1 Dr. Jess Role @ 2006 Common Power Supply Problems and Symptoms BlackoutBlackout Burn FuseBurn Fuse StampingStamping JigglingJiggling Turning off after a few seconds or minutesTurning off after a few seconds or minutes Picture size becomes smaller and smallerPicture size becomes smaller and smaller Motor boating sound or 60 cycle signal.Motor boating sound or 60 cycle signal. On and offOn and off Fuse burn after replacementFuse burn after replacement