Tilt and Rotation
The rotation control signal is a PWM output from the UOC. It is filtered by R3252,
R3246, R3259 and C2259. The DC voltage after filtering at C2259 will be amplified by
R3245 (Main Board) and R3390 (CRT panel).
The output stage functions similarly as in M8/L01.1 with rotation IC TDA8941P.
TS7331/TS7382 and TS7332/TS7381 will function alternatively corresponding to the
rotation setting.
CRT panel
The RGB amplifier stage is exactly the same as in M8/L01.1. However, the RGB
amplifier IC has been changed to TDA6107AJF or TDA6108AJF. The “A” indication is
with gain of “80” rather than “50” in M8/L01.1. The diode D6332 used in the former
chassis, to solve the bright screen during start up, is not required because this IC has
the error correction implemented.
Scavem
In certain versions, the Scavem feature is used to enhance the sharpness of the picture.
The RGB signals are first differentiated and subsequently amplified before feeding to an
auxiliary coil known as the SVM coil. The current, flowing through the SVM coil during
the picture intensity transients, modulates the deflection field and thus the scan velocity.
During the first half of the intensity increase, the scan velocity is increased (thus
decreasing the current density by spreading it on a wider area). During the second half
of the intensity increase, the scan velocity is decreased (increasing the current density
by concentrating it on a smaller area). The increasing current density transition is
sharpened. A decreasing current density transition is processed in a similar way and is
also sharpened.
Содержание 29PT6441/85
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Страница 35: ...Figure Service position Mono Carrier ...
Страница 69: ...Power Supply Set Not Working Figure Fault finding tree Set not working ...
Страница 70: ...Set Does Not Start Up Figure Fault finding tree Set does not start up ...
Страница 73: ...Blank Screen Figure Fault finding tree Blank screen ...
Страница 76: ...Picture Ok No Sound Figure Fault finding tree Picture ok no sound ...
Страница 77: ...Unable To Perform Tuning Figure Fault finding tree Unable to perform tuning ...
Страница 80: ...Audio Processing No Sound Figure Fault finding tree No sound ...
Страница 83: ...Hardware Alignments Figure Top view family board ...
Страница 86: ...Software Alignments and Settings Figure Service Mode overview ...
Страница 118: ...Figure Geometry alignments ...
Страница 172: ...All Models 7661 Chassis Overview ...
Страница 173: ...All Models 7661 Power Supply A1 ...
Страница 174: ...All Models 7661 Deflection A2 ...
Страница 175: ...All Models 7661 Tuner IF A3 ...
Страница 176: ...All Models 7661 Hercules A4 ...
Страница 177: ...All Models 7661 Features Connectivities A5 ...
Страница 178: ...All Models 7661 Class D Audio Amplifier A6 ...
Страница 179: ...All Models 7661 Audio Amplifier A7 ...
Страница 180: ...All Models 7661 Rear I O Cinch A8 ...
Страница 181: ...All Models 7661 Front Control A9 ...
Страница 182: ...All Models 7661 DVD Power Supply A10 ...
Страница 183: ...All Models 7661 CRT Panel B1 ...
Страница 184: ...All Models 7661 Eco Scavem B2 ...
Страница 185: ...All Models 7661 Side AV Headphone Panel D ...
Страница 186: ...USED ONLY IN MODELS 25PT6341 85 7661 Side Jack Panel Wide ...
Страница 187: ...NOT USED IN MODELS 25PT6341 85 27MS6341 37 27PT5441 37 32MS6341 37 32PT5441 37 33PT5441 85 7661 Top Control Panel E ...
Страница 188: ...USED ONLY IN MODELS 27MS6341 37 32MS6341 37 7661 Top Control Panel Round ...
Страница 189: ...USED ONLY IN MODELS 26PW6341 37 28PW6341 85 30PW6341 37 32PW6341 85 7661 Linearity Panorama Panel G ...
Страница 190: ...NOT USED IN MODELS 27ST6210 27 7661 LTI CTI Interface Panel H ...
Страница 191: ...NOT USED IN MODELS 25PT6341 85 27PT5441 37 32PT5441 37 33PT5441 85 7661 Front Interface Panel J ...
Страница 192: ...USED ONLY IN MODELS 27ST6210 27 7661 EPS Module ...
Страница 193: ...USED ONLY IN MODELS 27ST6210 27 7661 SP LS Module ...
Страница 194: ...USED ONLY IN MODELS 27ST6210 27 7661 ITV Interface Module ...
Страница 195: ...All Models 7661 Layout Mono Carrier Top Side ...
Страница 196: ...All Models 7661 Layout Mono Carrier Overview Bottom Side ...
Страница 197: ...All Models 7661 Layout CRT Panel Top Side ...
Страница 198: ...All Models 7661 Layout CRT Panel Bottom Side ...
Страница 199: ...All Models 7661 Layout Side AV Headphone Panel Top Side ...
Страница 200: ...All Models 7661 Layout Side AV Headphone Panel Bottom Side ...
Страница 201: ...USED ONLY IN MODELS 25PT6341 85 7661 Side Jack Panel Wide Top Side ...
Страница 202: ...USED ONLY IN MODELS 25PT6341 85 7661 Side Jack Panel Wide Bottom Side ...
Страница 205: ...USED ONLY IN MODELS 27MS6341 37 32MS6341 37 7661 Top Control Panel Round Top Side ...
Страница 206: ...USED ONLY IN MODELS 27MS6341 37 32MS6341 37 7661 Top Control Panel Round Bottom Side ...
Страница 207: ...USED ONLY IN MODELS 26PW6341 37 28PW6341 85 30PW6341 37 32PW6341 85 7661 Layout Linearity Panorama Panel Top Side ...
Страница 208: ...NOT USED IN MODELS 27ST6210 27 7661 Layout LTI CTI Interface Panel Top Side ...
Страница 209: ...NOT USED IN MODELS 27ST6210 27 7661 Layout LTI CTI Interface Panel Bottom Side ...
Страница 210: ...NOT USED IN MODELS 25PT6341 85 27PT5441 37 32PT5441 37 33PT5441 85 7661 Layout Front Interface Panel Top Side ...
Страница 211: ...NOT USED IN MODELS 25PT6341 85 27PT5441 37 32PT5441 37 33PT5441 85 7661 Layout Front Interface Panel Bottom Side ...
Страница 212: ...USED ONLY IN MODELS 27ST6210 27 7661 EPS Module Top Side ...
Страница 213: ...USED ONLY IN MODELS 27ST6210 27 7661 SP LS Module Top Side ...
Страница 214: ...USED ONLY IN MODELS 27ST6210 27 7661 SP LS Module Bottom Side ...
Страница 215: ...USED ONLY IN MODELS 27ST6210 27 7661 ITV Interface Module Top Side ...
Страница 216: ...USED ONLY IN MODELS 27ST6210 27 7661 ITV Interface Module Bottom Side ...
Страница 217: ...All Models 7661 Testpoint Overview Mono Carrier ...
Страница 218: ...All Models 7661 Testpoint Overview CRT ...
Страница 219: ...All Models 7661 Testpoint Overview LTI Panel ...
Страница 220: ...All Models 7661 Wiring Diagram ...
Страница 221: ...All Models 7661 Block Diagram Supply and Deflection ...
Страница 222: ...All Models 7661 Block Diagram Video ...
Страница 223: ...All Models 7661 Block Diagram Audio Control ...
Страница 224: ...All Models 7661 I2C and Supply Voltage Overview ...