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SERVICE MANUAL
33
1.6 COMB Filter TC90A49P (N1)
(1) Features
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TV format : NTSC (3.58), PAL, M-PAL, and N-PAL
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Dynamic comb filter
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Vertical edge enhancement circuit
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PLL 8 × multiplier circuit
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Internal 8-bit 4 fsc AD converter
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Internal 8-bit precision 8 fsc DA converter (2 ch)
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Sync tip clamp circuit
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Internal 4H-line memory
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I
2
C bus interface
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Package : DIP 20-pin and SOP 24-pin
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5V single power supply
(2) Block Diagram
(3) Pin Assignment
(4) Refer to Table 16 about Functions and Service Data of the IC’s Pins.
Fig. 14
Fig. 15
Fig. 16
Содержание 34T18
Страница 29: ...SERVICE MANUAL 27 4 Block Diagram Fig 11 5 Refer to Table 13 about Functions and Data of the IC s Pins ...
Страница 42: ...SERVICE MANUAL 40 2 WAVEFORMS OF KEY POINTS Waveform during C802 Startup Waveform during B Voltage Startup ...
Страница 43: ...SERVICE MANUAL 41 ...
Страница 44: ...SERVICE MANUAL 42 ...
Страница 45: ...SERVICE MANUAL 43 ...
Страница 46: ...SERVICE MANUAL 44 ...
Страница 47: ...SERVICE MANUAL 45 Waveform during V404 s Base T 64us ...
Страница 48: ...SERVICE MANUAL 46 Waveform during V404 s C Electrode ...
Страница 49: ...SERVICE MANUAL 47 ...
Страница 59: ...Circuit Diagram 2 ...
Страница 60: ...MAIN PCB ...
Страница 61: ...CRT RGB PCB ...