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Item/preparation
Adjustment Procedure
PAL Colour Output
1. Receive PAL colour bar pattern.
2. Connect an oscilloscope to TPA42 (A-Board).
3. Connect a short jumper between TPD29 and D29 (D-
1. Receive PAL colour bar pattern.
2. Connect an oscilloscope to TPA42 (A-Board).
3. Connect a short jumper between TPD29 and D29 (D-
Board).
4. Set controls:
Picture menu..........DYNAMIC NORMAL
AI............................OFF
AI............................OFF
1. Adjust Bright Control.
a=2.3 ± 0.2V
2. Adjust Sub Colour
Control.
b=3.0(+0.1,-0.2)Vp-p
b=3.0(+0.1,-0.2)Vp-p
3. Connect the oscillo-
scope to TPA40.
4. Confirm that the wave-
form.
b=2.85 ± 0.5Vp-p
b=2.85 ± 0.5Vp-p
NTSC Colour Output
1. Apply 3.58MHz NTSC Rainbow pattern.
2. Connect an oscilloscope to TPA40 (A-Board).
3. Connect a short jumper between TPD29 and D29 (D-
1. Apply 3.58MHz NTSC Rainbow pattern.
2. Connect an oscilloscope to TPA40 (A-Board).
3. Connect a short jumper between TPD29 and D29 (D-
Board).
4. Set controls :
Picture menu..........DYNAMIC NORMAL
P.AI.........................OFF
P-DNR....................OFF
P.AI.........................OFF
P-DNR....................OFF
1. Confirm that the waveform:
A=2.3 ± 0.5Vp-p
1 2 3 4 5 6 7 8 9 10
A=2.3 – 0.5Vp-p
TPA42
0V
Black level
White
b
a
TPA40
0V
Black level
White
b
a
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