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7-2

3.2.3 Horizontal Width Control Circuit ...................................................................................... 7-9

3.2.4 Horizontal Drive Circuit ................................................................................................... 7-9

3.2.5 Horizontal Output Circuit and Horizontal Feedback Circuit .......................................... 7-10

3.2.6 Linear Correction Circuit and Character S Correction Circuit ....................................... 7-11

3.2.7 Centering Circuit ........................................................................................................... 7-12

3.3 Vertical Deflection Circuit ................................................................................................. 7-13

3.3.1 Introduction ................................................................................................................... 7-13

3.3.2 Saw-tooth Wave Signals and Waveform Correction Circuit (U501) ............................. 7-14

3.3.3 Vertical Output Amplifier Circuit (U401) ........................................................................ 7-14

4. High Voltage Circuit ........................................................................................................... 7-14

5. Dynamic Focus Circuit ....................................................................................................... 7-14

6. Safety Protection Circuit and X-ray Protection Circuit ....................................................... 7-15

6.1 X-ray Protection Circuit .................................................................................................... 7-15

6.2 Beam Current Protection Circuit ...................................................................................... 7-15

6.3 Primary Leakage Current Protection Circuit .................................................................... 7-15

7. Video Circuit ....................................................................................................................... 7-16

7.1 Video Pre-amplifier .......................................................................................................... 7-16

7.1.1 Video signal mixing ....................................................................................................... 7-16

7.1.2 Video Clamp ................................................................................................................. 7-16

7.1.3 Horizontal Blanking ....................................................................................................... 7-16

7.1.4 Contrast, White Balance, and Brightness Control ........................................................ 7-17

7.2 Video Bias Control ........................................................................................................... 7-17

7.3 Vertical Flyback Blanking Circuit ...................................................................................... 7-18

7.4 Blanking Operations: Signal Mode Changeover,

Power ON/OFF and Unstable Sync signals ..................................................................... 7-18

7.5 ABL Circuit ....................................................................................................................... 7-19

7.6 SB MODE (Super Bright Mode) ....................................................................................... 7-19

Mitsubishi Diamond Plus 93SB User Manual

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