4.3. Adjustment for CRT CUT OFF
Preparation:
1. Connect the oscilloscope probe to (GREEN CATHODE) on L Board.
2. Screen VR min.
3. Set the data Sub Bright, Bright.
4. In service Mode at “Bright” dac press [5] in factory mode to enter vertical line and adjust by volume down or up button.
5. Adjust “Screen VR” to set voltage as in Table 1.
4.4. Adjustment Procedure
4.4.1. +B Voltage
Item / preparation
1. Operate the TV set.
2. Set control as follows :
Brightness ........... minimum
Contrast ............... minimum
Adjustment procedure
1. Confirm the DC voltage at the indicated test points, as follows :
TPA 15 : 3.35 V ± 0.2
TPA 16 : 141 V ± 2
TPA 17 : 8.2 V ± 0.35
TPA 18 : 1.85 V ± 0.15
TPA19 : 5.30 V ± 0.2
TPA20 : 220 V ± 15
4.4.2. High Voltage
Item / preparation
1. Receive the crosshatch pattern.
2. Set to 0 Beam.
Screen VR .......... minimum
Contrast .............. minimum
Adjustment procedure
1. Connect a DC voltage meter to TPA 16 and confirm that the +B voltage is 141.0 V ± 2.
2. Connect a high frequency voltmeter to heater and confirm that voltage reads 6.3 V (RMS) ± 0.3.
3. Normalize the brightness and contrast.
9
TX-29RX20M-MALAYSIA
Содержание TX-29RX20M-MALAYSIA
Страница 19: ...6 Adjustment of BOW a Adjust BOW so that the vertical lines are straight Fig 6 Fig 6 19 TX 29RX20M MALAYSIA ...
Страница 20: ...5 Location of Lead Wiring 5 1 Wire Dressing 20 TX 29RX20M MALAYSIA ...
Страница 22: ...6 Conductor Views 22 TX 29RX20M MALAYSIA ...
Страница 25: ...7 1 A Board 7 1 1 A Board 1 5 1A 2A 3A 5A 4A 6A 7A 8A 25 TX 29RX20M MALAYSIA ...
Страница 26: ...7 1 2 A Board 2 5 1B 2B 3B 4B 5B 6B 7B 1A 2A 3A 5A 4A 6A 7A 8A 26 TX 29RX20M MALAYSIA ...
Страница 27: ...7 1 3 A Board 3 5 1C 2C 3C 4C 5C 6C 8C 7C 1B 2B 3B 4B 5B 6B 7B 27 TX 29RX20M MALAYSIA ...
Страница 28: ...7 1 4 A Board 4 5 1D 2D 3D 4D 5D 7D 8D 9D 6D 1C 2C 3C 4C 5C 6C 8C 7C 28 TX 29RX20M MALAYSIA ...
Страница 29: ...7 1 5 A Board 5 5 1D 2D 3D 4D 5D 7D 8D 9D 6D 29 TX 29RX20M MALAYSIA ...
Страница 30: ...7 2 L Board 7 2 1 L Board 1 3 1A 2A 3A 4A 5A 30 TX 29RX20M MALAYSIA ...
Страница 31: ...7 2 2 L Board 2 3 1B 2B 3B 4B 1A 2A 3A 4A 5A 31 TX 29RX20M MALAYSIA ...
Страница 32: ...7 2 3 L Board 3 3 1B 2B 3B 4B 32 TX 29RX20M MALAYSIA ...
Страница 33: ...7 3 V Board 7 3 1 V Board 1 2 1A 2A 3A 4A 33 TX 29RX20M MALAYSIA ...
Страница 34: ...7 3 2 V Board 2 2 1A 2A 3A 4A 34 TX 29RX20M MALAYSIA ...
Страница 35: ...7 4 G Board 7 4 1 G Board 1 2 1A 2A 3A 4A 5A 6A 7A 8A 9A 35 TX 29RX20M MALAYSIA ...
Страница 36: ...7 4 2 G Board 2 2 1A 2A 3A 4A 5A 6A 7A 8A 9A 36 TX 29RX20M MALAYSIA ...
Страница 37: ...7 5 K Board 7 5 1 K Board 37 TX 29RX20M MALAYSIA ...
Страница 38: ...7 6 SW Board 7 6 1 SW Board 1 2 1A 2A 3A 38 TX 29RX20M MALAYSIA ...
Страница 39: ...7 6 2 SW Board 2 2 1A 2A 3A 39 TX 29RX20M MALAYSIA ...
Страница 40: ...8 Parts Locations 8 1 Packing Exploded View A 40 TX 29RX20M MALAYSIA ...
Страница 41: ...8 2 Packing Exploded View B 41 TX 29RX20M MALAYSIA ...
Страница 42: ...8 3 Parts Locations 42 TX 29RX20M MALAYSIA ...
