SONY KV-27TS35 Service Manual

KV-27TS35
RM-Y102
SERVICEMANUAL
US Model
Chassis No. SCC-E54H-A
Canadian Model
Chassis No. SCC-E65E-A
MODELS OF THE SAME SERIES
KV-27TS27/27TS31
KV-27TW75/27TW76
Television system American TV standards Channel coverage VHF: 2 - 13
Picture tube
Antenna
Input
output
UHF: 14 - 69
Cable TV: 1 - 125
MicroblackTM Trinitron”
274nch
28-inch picture tube measured diagonally
75ohm
VHF/UHF VIDEO and S VIDEO
AUDIO OUT (VARIABLE) (phono jacks)
picture measured diagonally
external antenna terminal for
S VIDEO IN (S terminal)
Y: 1 Vp-p, 75-ohms
unbalanced, sync negative
C: 0.286 Vp-p (Burst signal),
75ohms
Video (phono jacks): 1 Vp-p,
75-ohms unbalanced,
sync negative
Audio (phono jacks): 500 mVrms
(100% modulation) Impedance: 47 kilohms
More than 408 maximum volume setting (variable)
Impedance: 5 kilohms
mVrms
SPECIFICATIONS
tube
at the
Speaker output Power requirements Power consumption
Dimensions (w I h
Weight
Supplied accessories
Remote commander RM-Y 102 (1) with 2 size AA
(R6) EVEREADY batteries
Recommended accessories
U/V mixer EAC-66 Connecting cable
VMC-810/82OS,
Design and specifications are subject to change without notice.
5Wx2
120 V AC, 60 Hz
17ow
5W Standby mode
660.5x602.5 x468
1
d)
(26% x
46 kg
(99lbs 402)
YC-15
23%
x 18% in.)
Vi30
V, RK-tiA
mm
996479501
TRINlTRONdOLOR
TV
SONX
SECTION 3
SET-UP ADJUSTMENTS
l
The following adjustments should be made when a
complete realignment is required or a new picture tube is installed.
l
These adjustments should be performed with rated power supply voltage unless otherwise noted.
Controls and switch should be set as follows unless
otherwise noted :
PICTURE control . . . . . . . . . . . . RESET
BRIGHTNESS control . . . . . . . . . . center
. .
Preparations :
0 In order to reduce the influence of geomagnetism
on the set’s picture tube face it east or west.
* Switch on the set’s power and degauss with the
degausser.
13-l.
BEAM
1.
Input the white signal with the pattern generator.
Contrast
Bightness
2.
Set the pattern generator raster signal to red.
3.
Move the deflection yoke to the rear and adjust with the purity control so that the red is at the
center and the blue and the green take up equally sized areas on each side.
(See Figures 3-l through 3-3.)
4.
Move the deflection yoke forward and adjust so that entire screen is red. (See Figure 3-l.)
5.
Switch the raster signal to blue, then to green and
verify the condition.
6.
When the position of the deflection yoke has been decided, fasten the deflection yoke with the screws.
7. If the beam does not land correctly in all the corners, use a magnet to adjust it.
(See Figure 3-4.)
.
. . .
LANDING1
normal
I
. . ..
Perform the adjustments in order as follows :
1. Beam Landing
2. Convergence
3. Focus
4. White Balance Note : Test Equipment Required.
1. Color-bar/Pattern Generator
2. Degausser
3. Oscilloscope
. . . . . . . . . . . .
. .
Purity control
Fig. 3-2.
Fig. 3-3.
-24-
1 3-2. CONVERGENCE 1
Preparation :
l
Before starting this adjustment, adjust the focus,
horizontal size, and vertical size.
l
Minimize the brightness setting.
l
Provide dot pattern.
(1)
Horizontal and Vertical Static Convergence
0 Tilt the V.STAT magnet and adjust the static
convergence by opening or closing the V.STAT magnet.
Center dot
14
H. STAT
I
1.
(Moving horizontally), adjust the
A
V. STAT Magnet
RV 701 H. STAT
RV 708 (G 2) SCREEN
HSTAT
control so that the red, green, and blue points are on top of each other at the center of the screen.
2.
(Moving vertically), adjust the V.STAT magnet so that the red, green, and blue points are on top of each other at the center of the screen.
3.
If the H.STAT variable resistor cannot bring the red, green, and blue points together at the center
of the screen, adjust the horizontal convergence
with the H.STAT variable resistor and the V.
STAT magnet in the manner given below. (In this case, the H.STAT variable resistor and the
V.STAT magnet influence each other)
4.
If the V.STAT magnet is moved in the direction of the @ and @ arrows, the red, green, and blue
points move as shown below.
R G B
0
-25-
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