Specifications

Figures
Figure 1 : Overall Block Diagram of the CA10 Chassis ............................. Page 3
Figure 2 : Mains Filter and Indicator Circuit ...................................... Page 4
Figure 3 : Mains Rectifier Circuit .............................................. Page 5
Figure 4 : Power Supply Waveforms ........................................... Page 6
Figure 5 : CA10 Power Supply - Non-isolated Side ................................ Page 7
Figure 6 : Power Supply Regulation Circuit - Secondary Side ........................ Page 8
Figure 7 : Current Regulation Circuit .......................................... Page 10
Figure 8 : Snubber Circuit .................................................. Page 10
Figure 9 : Primary Processor Power Supply ..................................... Page 11
Figure 10 : Primary Side Microprocessor ....................................... Page 12
Figure 11 : Reset Operation Circuit ........................................... Page 13
Figure 12 : Reset Pulse Timing .............................................. Page 13
Figure 13 : Data Communication of IC101 ...................................... Page 14
Figure 14 : Audio Protection Circuit ........................................... Page 15
Figure 15 : Block Diagram of Line Stage ....................................... Page 16
Figure 16 : Line Drive Circuit ................................................ Page 17
Figure 17 : Line Output Circuit ............................................... Page 18
Figure 18 : Line Current and Voltage Waveforms ( Idealised ) ....................... Page 19
Figure 19 : Sand Castle Pulse ............................................... Page 20
Figure 20 : Sand Castle Pulse Detail .......................................... Page 20
Figure 21 : Sand Castle Pulse Generation Circuit ................................ Page 20
Figure 22 : IC502 Ideal Waveforms ........................................... Page 21
Figure 23 : Idealised East/west Pulse Waveforms ................................ Page 22
Figure 24 : Diode Modulator Circuit ........................................... Page 23
Figure 25 : East/West Drive Circuit ........................................... Page 23
Figure 26 : Beam Current Limiter Circuit ....................................... Page 25
Figure 27 : Signal Present on Pin 22 ( BLIM ) of IC201 ............................ Page 25
Figure 28 : Vertical Stage Block Diagram ...................................... Page 27
Figure 29 : Vertical Drive Circuit ............................................. Page 28
Figure 30 : Vertical Output Stage ............................................ Page 30
Figure 31 : Tuner and IF Signal Path .......................................... Page 31
Figure 32 : Video/Audio IF Split .............................................. Page 33
Figure 33 : Spectrum of the Base Band Signal .................................. Page 34
Figure 34 : Automatic Gain Control Circuit ..................................... Page 35
Figure 35 : Audio Stage Circuit Diagram ....................................... Page 36
Figure 36 : Headphone Amplifier Circuit ....................................... Page 38
Figure 37 : Video Switching circuit diagram ..................................... Page 39
Figure 38 : RGB Input and Switching Circuit .................................... Page 41
Figure 39 : Teletext Processor Circuit ......................................... Page 42
Figure 40 : CRT Drive Amplifier Circuit ........................................ Page 43
Figure 41 : Stereo and OPC LED Drive Circuit .................................. Page 44
Figure 42 : Overall Block Diagram of the CA1 Chassis ............................ Page 49
Figure 43 : CA1 Voltage Regulation Feed Back Circuit ............................ Page 50
Figure 44 : IC201 Power Supply Circuit ........................................ Page 51
Figure 45 : CA1 Reset Circuit ............................................... Page 52
Figure 46 : CA1 Data Communication ......................................... Page 53
Figure 47 : CA1 Power On Control Circuit ...................................... Page 54
Figure 48 : CA1 Protection Circuit ............................................ Page 55
Figure 49 : CA1 Vertical Driver Stage ......................................... Page 56
Figure 50 : CA1 Vertical Output Stage ......................................... Page 57
Figure 51 : CA1 Vertical Scanning Coils Circuit .................................. Page 58
Figure 52 : CA1 Line Driver Stage ............................................ Page 59
Figure 53 : CA1 CRT Drive Amplifier .......................................... Page 61
Figure 54 : CA1 Audio Amplifier Circuit ........................................ Page 62