Geometry Adjustment; H-Trapezoid Adjustment; Normal Mode 50Hz/60Hz; Wide Mode 50Hz/60Hz (V Compression Adjustment) - Sony TRINITRON KV-SZ25M61 Service Manual

3-4. GEOMETRY ADJUSTMENT

3-4-1. H-TRAPEZOID ADJUSTMENT

1. Receive cross hatch/dot signal.
2. Adjust RV1800 on C Board to make H-Trapezoid
distortion best/to obtain the center illustration shown in
Table 1.
3-4-2. NORMAL MODE 50Hz / 60Hz
1. Input PAL Special Color Bar (SPCB) or PAL Monoscope
(OTHER model) and Video mode or NTSC Monoscope
(NTSC model) signal using a pattern generator.
2. Set Wide Mode to "OFF".
3. Select Category items listed in Table 1.
4. Raise and Lower the data value using 3 and 6 button
to obtain the center illustration.
5. Press [MUTING] t - to save the data into the memory.
6. For Korea models, copy adjusted 60Hz to 50Hz. Add 6
steps to 50Hz "HPOS" and 3 steps to 50Hz "HSIZ" and
save the data.
3-4-3. WIDE MODE 50Hz / 60Hz
(V Compression Adjustment)
1. Input PAL Special Color Bar (SPCB) (OTHER model) or
Monoscope NTSC (NTSC model) signal using a pattern
generator.
2. Set Wide Mode to "ON".
3. Copy NORMAL MODE 50Hz/60Hz adjusted data for the
following items:-
GEOM: 011 VSIZ, 010 VSLP, 012 SCOR and 003 VLIN
4. Select Category items listed in Table 1 except GEOM:
003 VLIN, 010 VSLP, 011 VSIZ, and 012 SCOR and
adjust the data to obtain the center illustration.
5. Press [MUTING] t - to save the data into the memory.
6. For Korea models, copy adjusted 60Hz to 50Hz. Add 6
steps to 50Hz "HPOS" and save the data.
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KV-SZ25M61/N60
RM-GA002