Specifications

MODEL: HD-4001
Page 19
Purpose:
Measuring
Instrument
Test Point
Measuring
Range
Input Signal
Ext. Trigger
Input Terminal
Symptom:
Purpose:
Measuring
Instrument
Test Point
Measuring
Range
Input Signal
Ext. Trigger
Input Terminal
Symptom:
[Video Circuit]
3. Sub Picture Offset
To match sub picture white to main picture white
Sub picture white differs from white in the main picture.
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Full White Raster
External Input
1. Supply a full white raster signal to an External Input.
2. Select the white raster as the source for both the main and sub pictures.
3. Use the PIP/POP buttion to select the Single PIP mode.
4. Enter the Alignment Mode (MENU-2-4-5-7)
4. Select the AD9883A function (AUDIO button).
5. Select item #12 ROFF and #14 BOFF (VIDEO button).
6. Set the data fore items #12 and #14 so the sub picture white is close to that in
the main picture. (ADJUST buttons).
7. Press “ENTER” to save data.
8. Press “MENU” twice to exit the service mode.
[Video Circuit]
2. Sub-Y Gain
To set the sub picture Y level
Incorret analog source sib picture brightness level.
Oscilloscope
TPSY
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Color bars
External Input
1. Supply a Color Bars with 100% white signal to an External Input. Select this
input as the sub picture source.
2. Connect a scope to TPSY.
3. Enter the Alignment Mode (MENU-2-4-5-7)
4. Select the SMTX function (AUDIO button).
5. Select adjust item #14 YDRS (VIDEO button).
6. Set the data so the waveform at TPSY equals the main-y signal. (ADJUST
buttons).
7. Press “ENTER” to save data.
8. Press “MENU” twice to exit the service mode.
TPSY
TPY
PWB-SIGNAL (Partial)