Degaussing
When the set is switched on, the degaussing relay 1515 is immediately activated as
transistor 7580 is conducting. Due to the RC-time of R3580 and C2580, it will last about
3 to 4 seconds before transistor 7580 is switched off.
Basic IC Functionality
For a clear understanding of the Quasi-Resonant behavior, it is possible to explain it by
a simplified circuit diagram (see Figure below). In this circuit diagram, the secondary
side is transferred to the primary side and the transformer is replaced by an inductance
L
P
.C
D
is the total drain capacitance including the resonance capacitor C
R
, parasitic
output capacitor C
OSS
of the MOSFET and the winding capacitance C
W
of the
transformer. The turns ratio of the transformer is represented by n (N
P
/N
S
).
Figure:
Содержание 7629
Страница 1: ......
Страница 5: ......
Страница 14: ...AV2 In SVHS Connector Kind Value Symbol 1 gnd v 2 gnd v 3 Y 1 Vpp 75 O j 4 C 0 3 Vpp 75 O j ...
Страница 16: ...Figure ...
Страница 18: ...Figure ...
Страница 20: ...Figure Panel Removal 1 Lift the board out of its bracket after releasing the 2 fixation clamps Figure ...
Страница 48: ...Hardware Alignments Figure Mono Carrier Top View LS ...
Страница 76: ...Power Supply Figure Figure ...
Страница 101: ...T8 7629 ...
Страница 102: ...T8 7629 ...
Страница 103: ...T8 7629 ...
Страница 104: ...T8 7629 ...
Страница 105: ...All Models 7629 PCB Locations ...
Страница 106: ...All Models 7629 Power Supply Diagram A1 ...
Страница 107: ...All Models 7629 Line Deflection Diagram A2 ...
Страница 108: ...All Models 7629 Frame Deflection Diagram A3 ...
Страница 109: ...All Models 7629 Tuner IF Diagram A4 ...
Страница 110: ...All Models 7629 Video IF And Sound IF Diagram A5 ...
Страница 111: ...All Models 7629 Synchronization Diagram A6 ...
Страница 112: ...All Models 7629 Control Diagram A7 ...
Страница 113: ...All Models 7629 Audio Amplifier Diagram A8 ...
Страница 114: ...All Models 7629 BTSC Stereo SAP Decoder Diagram A9 ...
Страница 115: ...All Models 7629 Audio Video Source Switching Diagram A10 ...
Страница 116: ...All Models 7629 BTSC NDBX Stereo Decoder Diagram A11 ...
Страница 117: ...All Models 7629 Front I O Control Headphone Diagram A12 ...
Страница 118: ...All Models 7629 Rear I O Cinch Diagram A13 ...
Страница 119: ...All Models 7629 PIP Interface Diagram A16 ...
Страница 120: ...All Models 7629 CRT Panel Diagram B1 ...
Страница 122: ...USED ONLY IN MODELS 27PS50B321 32PS55S321 32PS61S321 32PS55S331 7629 Side AV and Headphone Panel Diagram E1 ...
Страница 123: ...USED ONLY IN MODELS 27PS60S321 27RF72S325 32PS61S321 7629 PIP Panel Diagram P ...
Страница 125: ...USED ONLY IN MODELS PC0125C321 PC0127C321 7629 EPS Panel Schematic ...
Страница 126: ...USED ONLY IN MODELS PC0125C321 PC0127C321 7629 Card Interface Schematic ...
Страница 127: ...USED ONLY IN MODELS PC0125C321 PC0127C321 PL0125C321 PLW225S321 PRF227S325 7629 SP LS Panel Schematic ...
Страница 128: ...All Models 7629 Main Panel component side ...
Страница 129: ...All Models 7629 Main Panel copper side ...
Страница 130: ...All Models 7629 CRT Panel component side ...
Страница 131: ...All Models 7629 CRT Panel copper side ...
Страница 132: ...All Models 7629 Headphone Panel component side ...
Страница 133: ...All Models 7629 Side AV Panel component side ...
Страница 134: ...All Models 7629 PIP panel component side ...
Страница 135: ...All Models 7629 PIP panel copper side ...
Страница 136: ...All Models 7629 Top Control Panel component side ...
Страница 137: ...All Models 7629 EPS Panel PCB Top View only ...
Страница 138: ...All Models 7629 Card Interface Panel PCB Top View ...
Страница 139: ...All Models 7629 Card Interface Panel PCB Bottom View ...
Страница 140: ...MAIN CABINET EXPLODED VIEW ...