Sony FD Trinitron WEGA KV-36HS500, Руководство по обслуживанию

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KV-32HS500/32HV600/34DRC500/34XBR800/36HS500/
36XBR800/38DRC500/40XBR800/42DRC800
11. LLMB (Left Lower Middle BOW)
B R
12. CADJ Fix 29
2-4. FOCUS ADJUSTMENT
Confi rm neck assembly Z axis position. (See Figure 1)
1. Input a dot signal.
2. Set Video Mode to STANDARD.
3. Adjust focus VR clockwise (DE-Focus) to confi rm that the dot’s shape
is centered. (Figure 2 & 3) Confi rm neck assembly rotation by W Board
position. W Board should be level ±1º. Adjust as necessary to balance
dot shape along center horizontal line, then refocus.
4. Input a HD monoscope signal.
5. Confi rm center focus with focus VR.
Figure
1
FOCUS
Screen (G2)
DOT SHAPE:
NOTE
: Changing neck assembly position will affect corner convergence.
2-4.1. DYNAMIC FOCUS/DYNAMIC QUADRA-
POLE DATA
Normally, no adjustments are necessary for these systems. If for some
reason the data is lost, use the following data:
Write the data from any non-vertically compressed mode, then use the
CPY1 function (CXA2170D-4 Item 6) to copy the data to the vertical
compressed modes. V-compressed data is identical to non-v-compressed
data. Service personnel with a trained eye can adjust the
DF or DQP registers to adjust DF phase (Item 7) or DQP
phase (Item 8), respectively, to balance left and right focus.
Refrain from adjusting more than 5 steps from table data below.
Further adjustment indicates a circuit problem -- troubleshoot to
cause. Be sure that Neck Assembly is in the proper location
(See Section 2-4 Figure 1) before changing DF/DQP data or
troubleshooting circuit when DF/DQP is suspect.
Figure
2
Figure
3