Read Sony KDE-V42A12U / KE-V42A10E Service Manual online
7.2 Adjusting procedure
1) Get Pattern to be Full White.
2) Check the waveform using Oscilloscope
① Triggering through V_TOGG of LOGIC Board.
② Connect the OUT240 Test Point(U5404) at the center of Y_buffer to other channel, and then check the
2nd SF operating waveform of 1TV-Field.
③ Check the waveform as before by adjusting Horizontal Division.
Check the Reset waveform when the V_TOGG Level is changed.
④ Set the Vset to
60us
by adjusting
VR5001.
⑤ Set the Falling maintenance time to
80us
by adjusting R5003.
▶ VR5001 Adjustment
- Rising Ramp flat time Typ. 60㎲±2㎲
▶ VR5003 Adjustment
- Falling Ramp flat time Typ. 80㎲±2㎲
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