Geometry Adjustment; H-Trapezoid Adjustment; Normal Mode 50Hz/60Hz; Wide Mode 50Hz/60Hz (V Compression Adjustment) - Sony TRINITRON KV-SZ252M50 Service Manual

Table of Contents

4-4. GEOMETRY ADJUSTMENT

1. Receive cross hatch/dot signal.

2. Adjust RV1800 on CV Board to make H-Trapezoid

distortion best/to obtain the center illustration shown in

Table 1.

4-4-2. 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.

4-4-3. 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.

Table of Contents