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Sharp CA1/CA10 Chassis Course Notes.pdf

August 10, 2008 · Filed Under Sharp  · Tags: , ,

As with the last Sharp colour television chassis ( CS ) the new CA10 design incorporates the latest technology from Japan and Spain where the receivers are designed and manufactured at the production plant in Barcelona.

Contents:

  • Introduction to the CA10 Chassis
  • CA10 Receiver Specifications
  • CA10 Block Diagram
  • Power Supply [ Mains input circuit ~ Standby operation ~ Start up operation ~ Voltage regulation ~ Supply increase ~ Supply decrease ~ Protection ~ Over current control ~ Snubber circuit ~ Power on control ~ Primary processor power supply ~ Power supply turn on ]
  • Primary Processor
  • System Control [ Resets and oscillators ~ Data communication ~ I2C bus ~ Parallel communication ~ Protection circuits ~ Software reset ]
  • Line Stage [ Line time base generation ~ Line drive circuit description ~ Line output circuit description ~ Line scan correction ~ Sand castle pulse ~ East/West correction ~ Principle of circuit operation ~ Circuit operation ~ Pulse width modulator ~ Drive Circuit ~ Supplies generated by the line stage ~ Beam current limiter ~ Beam limiting input of IC201 ~ Vertical circuit failure - CRT protection ~ EHT input of IC201 ]
  • Vertical Stage [ Vertical time base generation ~ Vertical scan coil drive circuit ]
  • Tuner and IF [ Tuner and IF processing ~ Automatic frequency control ~ Tuning features ~ IF signals ~ Audio IF processing ~ Video IF and signal processing ~ RF AGC operation ~ Automatic tuning operation ]
  • Audio Processing [ Signal sources and generation ~ Signal switching ~ Loudspeakers driver stage ~ Sound Retrieval System ( SRS ) ~ Headphone driver stage ]
  • Video Processing [ Signal sources and switching ~ RGB Switching ~ Teletext ~ On screen display ~ CRT drive circuit ]
  • Indicating Devices
  • Practical Fault Finding [ I2C bus line disconnection ~ Tuner ~ IC201 ( IF, Y/C processor and time base generator ) ~ IC305 ( Sound processor ) ~ SRS module ~ Shorting of SDA to SCL ~ Disconnection of IC703 ~ Power supply voltage line resistances to earth ]
  • Service Set Up Mode [ Access and operation ~ Adjustments ~ Vertical adjustments ~ Line ]
  • CA1 Receiver Specifications
  • CA1 Power Supply [ Regulation Control Circuit ~ IC201 Supply ]
  • CA1 Reset
  • Data
  • CA1 Power On Control
  • CA1 Protection [ Automatic Beam Current Limiting and X-Ray Protection
  • CA1 Discrete Component Vertical Stage [ Vertical Driver Stage ~ Vertical Output Stage ~ Frame Scanning Coils ]
  • CA1 Line Stage [ Driver Stage ]
  • CA1 CRT Drive Amplifier
  • CA1 Audio Output Amplifier
  • CA1 Service Set Up Mode
  • CA1 Non Volatile Memory Codes [ CA1 NVM Locations and Functions ~ Procedure for Programming the NVM ~ NVM Programming Application ]

Download free Sharp CA1/CA10 Chassis Course Notes.pdf (76 pages pdf file, 1.3 MB).

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