Preparations (2); Writing Model Data; Picture Output; Landing Adjustment - Sony Trinitron PVM-1353 Service Manual

PREPARATIONS (2)
*
When composite video or component signals are supplied, they
must be supplied as below.
Standard Level
Signal
Signal Contents
P-W
100%WHITE 0.714V
358NT
COMPOSITE
75%WHITE 0.536V
VIDEO 100%WHITE 0.7V
PAL
75%WHITE 0.525V
100%WHITEY 0.7V
75%WHITEY 0.525V
BETAO
75%COLOR
B-Y.R-Y 0.7V
(This item only p-p)
COMPONENT
!00%WHITEY 0.7V
75%WHITEY
0.525V
SMPTE
75%COLOR
B-Y, R-Y 0.525V
(This item only p-p)
AUDIO
-0.5dBs
0.436Vrms
*
In this document, terms inside boxes
CJ
are names of service
mode adjustments.
Example
!
60H-FREQ
*
After making adjustments in service mode, write the adjustment
data before cutting off the power.
If
you cut off the power
without writing, the results of your adjustments are all lost.
*
Standard inspection conditions
Unless specifically specified otherwise in this document. the
following conditions are used for adjustments and_ inspections.
APERTURE MIN .
BRIGHT
CHROMA
PHASE
CONTRAST
VOLUME
50% (Center click)
50% (Center click)
50% (Center click)
80% (Center click)
50%
3-2. WRITING MODEL DATA
1. In service mode, write in the following model data at
jMODELj.
PYM-1353MD/1953MD ............ 5
PYM-1453MD/2053MD············· 1
2. In service mode, write in the following data at
I
COLOR TEMP DISP 11.
PYM-1353MD/1453MD············· 65
PVM-1953MD/2053MD············· 65
3. In service mode, write in the following data at
!COLOR TEMP DISP 21.
PYM-1353MD/1453MD············· 56
PVM-1953MD/2053MD············· 56
PVM-1353MD/1453MD
3-3. PICTURE OUTPUT
1. Set the AC input voltage.
(1) Input the video and audio signals to the corresponding
terminals on the connector panel.
(2) Set the sliduck AC voltage as shown on the right.
Model Voltage
PVM-1353MD/l 953MD
AC120 ± 3V
(Distortion rate : 3% or less)
PVM- l 453MD/2053MD
AC220 ±3V
(Distortion rate : 3% or less)
3-4. LANDING ADJUSTMENT
I. Preparations
I) To reduce the influence of geomagnetism, face the set's CRT
screen east or west.
2) Loosen the deflection yoke fixture and lower the deflection
yoke to the rear.
3) Switch on the Power switch and degauss with the degausser.
4) Adjust the deflection yoke tilt.
2. Adjustment
!)CONT······ MIN
BRT········· Position providing good vision
2) The rough adjustments of the white balance, G2, and
convergence must be completed already:
3) Set green-only.
4) Adjust the purity knob so that the green comes to the center
of the screen. Make the red and blue about even. Fig. 1
5) Switch to blue only, red only, and green,?nly and verify each.
Fig. 1, 2, and 3
6) Bring the deflection yoke gradually forward and adjust the .
deflection yoke so that the R and B at both sides of the screen
become green. Fig. 2 - 3
7) If the deflection yoke comes too far forward, you will see the
pattern shown in Figure 4. If that happens, lower the
deflection yoke to the rear. Fig. 4 - 3
8) Switch the single color switch to B and verify the single
color. Fig. 6 ·
9) Switch the single color switch to R and verify the single
color. Fig. 9
10) When one of the colors does not become the single color
correctly, check by repeating Items 7 and 8 based on the
single color not coming into adjustment.
If
you can not obtain landing in the comers, paste on
magnets.
11) Switch to an all-white signal and check the uniformity.
12) When the deflection yoke position is determined, fasten it
with the fixture.
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