high voltage distributor on FBT.
DVM and power supply connection
5. Connect the 15 ~ 25 V DC variable power supply positive lead to D34
or IC802 pin 2 (D Board) and negative lead to heat sink of Q551 or D825
Procedures:
1. Apply a NTSC white pattern.
2. Turn PTV ON.
3. Adjust the picture or brightness controls so that the DVM reads 12.4 ±
0.4 volts.
4. Increase the variable power supply until set turns off. The set should
turn off at 12.4 ± 0.4 volts (DVM) and high voltage less than 36.4kV.
5. If the DVM reading is other than 12.4 ± 0.4 volts, readjust picture or
brightness control and repeat steps 3.
6. Turn off the variable supply and confirm that the set will turn on with
the remote control.
4. Service notes
NOTE
These components are affixed with glue. Be careful not to break or damage any foil under the
component or at the pins of the ICs when removing. Usually applying heat to the component for a
short time while twisting with tweezers will break the component loose.
Leadless chip component (surface mount)
Chip components must be replaced with identical chips due to critical foil track spacing. There are no
6
Содержание PT53TW53G - 53" PROJECTION TV HD
Страница 11: ...6 Receiver feature table 11 ...
Страница 25: ...9 Conductor views 9 1 K and G Board printed circuit 10 Schematics 10 1 Schematic diagrams notes 25 ...
Страница 26: ...26 ...
Страница 27: ...10 2 Notas de los diagramas esquematicos 27 ...
Страница 28: ...28 ...
Страница 32: ...32 ...
Страница 59: ...1 2 3 4 5 6 7 8 A B C D E F G H I J K BOARD TNP2AA138 G BOARD TNP2AA137 PT 53TW53G PT 56TW53G ...
Страница 60: ...1 2 3 4 5 6 7 8 A B C D E F G H I J A BOARD 1 5 TNP2AH045AA PT 53TW53G PT 56TW53G ...
Страница 61: ...1 2 3 4 5 6 7 8 A B C D E F G H I J A BOARD 2 5 TNP2AH045AA PT 53TW53G PT 56TW53G ...
Страница 62: ...1 2 3 4 5 6 7 8 A B C D E F G H I J A BOARD 3 5 TNP2AH045AA PT 53TW53G PT 56TW53G ...
Страница 63: ...1 2 3 4 5 6 7 8 A B C D E F G H I J A BOARD 4 5 TNP2AH045AA PT 53TW53G PT 56TW53G ...
Страница 64: ...1 2 3 4 5 6 7 8 A B C D E F G H I J A BOARD 5 5 TNP2AH045AA PT 53TW53G PT 56TW53G ...
Страница 134: ...5 PTV Location of controls 10 ...
Страница 145: ...A BOARD 21 ...
Страница 146: ...D BOARD 22 ...
Страница 147: ...R BOARD VIEW DC BOARD TOP VIEW 23 ...
Страница 148: ...DC BOARD BOTTOM VIEW DV BOARD 24 ...
Страница 149: ...DG BOARD TOP VIEW DG BOARD BOTTOM VIEW 25 ...
Страница 199: ...19 5 Instructional flow for service mode 75 ...
Страница 200: ...76 ...
Страница 201: ...20 Reference of PDF links color 21 Conductor views 77 ...
Страница 203: ...22 2 Video block diagram 23 Schematic diagrams 23 1 Schematic diagrams notes 79 ...
Страница 204: ...80 ...
Страница 205: ...23 2 Notas de los diagramas esquematicos 81 ...
Страница 206: ...82 ...
Страница 208: ...23 27 Voltages 23 28 Waveforms 24 Parts location 25 Parts list 25 1 Description of abbreviations guide 84 ...
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Страница 228: ...Q 104 ...
Страница 230: ...Q 106 ...
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