DOWNLOAD Sony KV-DR29M50B Service Manual ↓ Size: 15.15 MB | Pages: 106 in PDF or view online for FREE

Model
KV-DR29M50B
Pages
106
Size
15.15 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-dr29m50b.pdf
Date

Sony KV-DR29M50B Service Manual ▷ View online

– 9 –
KV-DR29M50B
RM-964
SECTION 2
SERVICE JIG
2-1. JIGS REQUIRED FOR SERVICING
REF NO.
DESCRIPTION
QUANTITY
PART NO.               REMARK
J-1
TOOL(20P),SERVICE
1
3-702-763-01         For A to BC1 board extension
J-2
TOOL(40P),SERVICE
1
3-702-764-01         For A to B3 board extension
J-3
TOOL(50P-A),SERVICE
1
3-702-765-01         For D to D5 board extension
SECTION 3
CIRCUIT BOARDS LOCATION
J-1
J-2
J-3
D Board
D5 Board
B3 Board
J Board
P Board
A Board
F1 Board
BC2 Board
H1 Board
VM Board
H2 Board
C Board
– 10 –
KV-DR29M50B
RM-964
SECTION 4
ADVANCE OPERATION
4-1. "RESET" FUNCTION
1. Purpose
If a customer faces some setting problem that cannot be solved, using the "RESET" function some items will be
reset to its original setting (shipping condition)
2. How to Operate
There are 2 ways to access to the "RESET" Function:-
a) By pressing "RESET" button on the Remote Commander.
b) By pressing "MENU" button on the Front Key Input and hold it down for 5 seconds.
3. Sequence of Operation
Sequential to the resetting operation (either methods being used in No. 2), TV set would shut down once and
automatically turn on again. The power-off duration is expected to be about 500msec. An OSD message,
"RESET" tentatively will be displayed for 10 sec after IK status gets stable.
As a result, some items will be reset to an initial condition (shipment condition) wheareas some other remains at
the last selection by user.
Items that remains at the last selection by user
Reset Items
Program No.,  PIC rotation, OSD Language,
Fine tuning, TV System, Skip
Video input
RF
Volume
30
DRC-MF
DRC1250(except KV-DR29N90B)
DRC-MF
DRC1050(KV-DR29N90B)
Picture mode
DYNAMIC
Sound mode
DYNAMIC
Surround mode
OFF
Color system(video)
AUTO
Multi picture(PIP)
OFF(not used for these models)
PIP position
Bottom-right(not used for
these models)
OSD recall
OFF
Intelligent volume
OFF
ECO mode
OFF
Color system(RF)
AUTO*
Antenna sensitivity
HIGH*(not used for these models)
Stereo mode
STEREO/NICAM*
(except KV-DR29M81)
Bilingual mode
MAIN*(except KV-DR29M81)
High-deviation mode
AUTO*(except KV-DR29M81)
Child lock
OFF*
Wide mode
OFF
Game mode
OFF
Teletext mode
OFF(KV-DR29M81)
Sleep timer
OFF
Wake-up timer
OFF
Sound muting
OFF
3DNR
OFF
*= only when in RF mode
– 11 –
KV-DR29M50B
RM-964
• The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
• These adjustments should be performed with rated power
supply voltage unless otherwise noted.
Controls and switches should be set as follows unless otherwise
noted:
PICTURE control ...........................................................  normal
BRIGHTNESS control ...................................................  normal
Perform the adjustments in the following order :
1. Beam Landing
2. Convergence
3. Focus
4. White Balance
Note :  Test Equipment Required.
1. Color-bar/Pattern Generator
2. Degausser
3. Oscilloscope
SECTION 5
SET-UP ADJUSTMENTS
................................................................................................................................................................................................................................
Fig. 5-3
normal
Neck assy
G2
G1
G3
Align the edge of 
the neck assy with 
the edge of the G3 grid. 
(KV-DR34)
(KV-DR29)
Neck assy
G2
G1
G3
Align the edge of
the neck assy with
the edge of the G2 grid.
Fig. 5-1
Red
Blue
Green
Preparation :
• 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.
5-1. BEAM LANDING
1. Input a white signal with the pattern generator.
Contrast
Brightness
2. Position neck assy as shown in Fig 5-1.
3. Set the pattern generator raster signal to a green raster.
4. Move the deflection yoke to the rear and adjust with the
purity control so that the green is at the center and the blue
and the red take up equally sized areas on each side.
(See Figures 5-1 through 5-3.)
5. Move the deflection yoke forward and adjust so that the
entire screen is green. (See Figure 5-2.)
6. Switch the raster signal to blue, then to red and verify the
condition.
7. When the position of the deflection yoke has been decided,
fasten the deflection yoke with the screws and DY spacers.
8. If the beam does not land correctly in all the corners, use a
magnet to adjust it.
(See Figure 5-4.)
Fig. 5-2
Fig. 5-4
Purity control
corrects this area.
Disk magnets or rotatable
disk magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
a
b
b
c
c
d
d
a
}
– 12 –
KV-DR29M50B
RM-964
5-2. CONVERGENCE ADJUSTMENT
Preparation :
Before starting this adjustment, adjust the focus, horizontal
size and vertical size.
Receive cross hatch/dot pattern and set picture mode to
"STANDARD".
(1) Horizontal and Vertical Static Convergence
1. (Moving horizontally), adjust the H.STAT control so that the
red, green and blue dots 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 dots are on top of each other at the center
of the screen.
3. Adjust Horizontal Trapezoid with “GEO 11 HTR” in Service
Mode to make H-Trapezoid distortion best.
4. If the H.STAT variable resistor cannot bring the red, green
and blue dots 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, so be sure to perform
adjustments while tracking.)
1
V. STAT
2
H. STAT VR
Center dot
R    G    B
R
G
B
H. STAT VR
V. STAT
Magnet
RV702
H. STAT
Y magnet
C Board
R
R
G
G
B
B
a
a
b
b
b
R
R
G
G
B
B
a
b
3
R
R
G
G
B
B
a
a
b
b
b
V.STAT
Purity
BMC (Hexapole)
Page of 106
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