23
CRT board have single and double focus CRT socket options.
There are CC type 1,5K series flash current limiting resistors (R903, R904, R905) on the RGB lines. In
addition to resistors BAV21 clamp diodes (IC901,IC902,IC903) are introduced.
Spot Killer circuit pulls G1 to –200V by
Q700
at turn off instant.
BSVM amplifier circuit modulates the beam to have sharper images at the adges of CRT. Basicly, it
amplifies the software delayed controlled BSVM signal and apply it to BSVM winding of neck.
2.2.3.4
ROTATION
PWM rotation output of UOC3 is first converted to DC then applied to rotation circuit. OPAMP LM358N
(IC600) and medium power transistors (Q601, Q602) performs DC amplification necessary for rotation
coil.
Содержание 28YT56
Страница 1: ...SERVICE MANUAL PRINTED IN UK 2003 C COLOURTELEVISION 28YT56 32YT56 TOSHIBA ...
Страница 7: ...6 Block diagram of the TV System with face down version is ...
Страница 8: ...7 ...
Страница 22: ...21 ...
Страница 33: ...32 Pin NO Signal 1 14 volt 2 80 volt 3 EHTINFO 4 HEATER 5 GND 6 7 200 volt ...
Страница 34: ...33 2 2 6 CABLE SPECs 2 2 6 1 RGB CABLE ...
Страница 35: ...34 ...
Страница 36: ...35 2 2 6 2 200V CABLE with BSVM ...
Страница 37: ...36 ...
Страница 38: ...37 2 2 6 3 200V CABLE without BSWM ...
Страница 39: ...38 ...
Страница 76: ...75 6 PICTURE MODES ...
Страница 77: ...76 ...
Страница 78: ...77 ...
Страница 79: ...78 ...
Страница 80: ...79 7 CIRCUIT DIAGRAMS ...
Страница 81: ...80 ...
Страница 82: ...81 ...
Страница 83: ...82 ...
Страница 84: ...83 ...