Sony KV-SW342M50 Service Manual ▷ View online
– 5 –
KV-SW342M50/M61/M80/N60
RM-GA002
SECTION 1
DISASSEMBLY
1-2.
SPEAKER REMOVAL
1-3.
CHASSIS ASSY REMOVAL
1-4.
SERVICE POSITION
1-5.
TERMINAL BRACKET AND J3 BOARD REMOVAL
1-1.
REAR COVER REMOVAL
1-6.
F1 BOARD REMOVAL
1 Thirteen screws
(+BVTP
(+BVTP
4
× 16
Type2
IT-3)
2 Rear cover
1 Two screws
(Washer Head)
(+P4
(+P4
× 16)
4 One screw
(+BVTP
(+BVTP
3
× 12
Type2
IT-3)
5 Two hooks
3 One screw
(+BVTP
(+BVTP
3
× 12
Type2
IT-3)
7 J3 board
6 Terminal bracket
1 One screw
(+BVTP
(+BVTP
4
× 12
Type2
IT-3)
2 Two screws
(+BVTP
(+BVTP
3
× 12
Type2
IT-3)
2 One hooks
1 Five screws
Screw (3 x12),(+)BVTAP
3 F1 Board
– 6 –
KV-SW342M50/M61/M80/N60
RM-GA002
1-9.
D3 AND F2 BOARDS REMOVAL
1-7.
H4 AND H7 BOARDS REMOVAL
1-8.
A BOARD REMOVAL
1 Five Hooks
3 Three Hooks
4 H4 Board
2
H7 Board
1 Five screws
Screw (3
Screw (3
× 12), (+)BVTAP
2 One screw (Washer head)
(+P
(+P
3
× 12)
3 Four Hooks
4 A Board
2 D3 Board
3 F2 Board
1 Three Hooks
– 7 –
KV-SW342M50/M61/M80/N60
RM-GA002
• REMOVAL OF ANODE-CAP
Note:
• After removing the anode, short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or
carbon paint on the CRT.
• REMOVING PROCEDURES
1 Turn up one side of the rubber cap in the direction
indicated by the arrow
a.
2 Using a thumb pull up the rubber cap firmly in the direction
indicated by the arrow
b.
3 When one side of the rubber cap is separated from the
anode button, the anode-cap can be removed by turning
up the rubber cap and pulling it up in the direction of the
arrow
up the rubber cap and pulling it up in the direction of the
arrow
c.
• HOW TO HANDLE AN ANODE-CAP
1 Do not damage the surface of anode-caps with sharp
shaped objects.
2 Do not press the rubber too hard so as not to damage
the inside of anode-cap.
A metal fitting called the shatter-hook terminal is built
into the rubber.
A metal fitting called the shatter-hook terminal is built
into the rubber.
3 Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage the
rubber.
rubber.
anode button
1-10. PICTURE TUBE REMOVAL
Note:
•
Please make sure the TV set is not in standing position before removing necessary CRT support located on bottom right
and left.
and left.
1) Remove the rear cover.
2) Unplug all interconnecting leads from the Deflection yoke, Neck assy, Degaussing Coil and CRT grounding strap. Remove
2) Unplug all interconnecting leads from the Deflection yoke, Neck assy, Degaussing Coil and CRT grounding strap. Remove
Chassis Assy.
3) Place the TV set with the CRT face down on a cushion jig
a
a
b
b
c
qa
Earth Coating Assy
4 Anode Cap Removal
7 Band, DGC Removal
5 C Board Removal
8Holder, DGC(2) Removal
q;
Spring Tension(2) Removal
qf
Nut, Special, CRT (x4)
9
Degaussing Coil
6 Loosen the Neck Assembly fixing screw
and remove Neck Assy & VM board
and remove Neck Assy & VM board
qs
Loosen the Deflection Yoke
fixing screw and remove
qd
Supports, CRT
Removal
(x2)
– 8 –
KV-SW342M50/M61/M80/N60
RM-GA002
The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
realignment is required or a new picture tube is installed.
Set the controls as follows unless otherwise noted:
VIDEO MODE: .................................................. Standard
PICTURE CONTROL: ....................................... "Normal"
BRIGHTNESS CONTROL: ............................... "Normal"
PICTURE CONTROL: ....................................... "Normal"
BRIGHTNESS CONTROL: ............................... "Normal"
The controls and switch should be set as follows unless
otherwise noted:
Picture Control....................................."NORMAL"
Brightness Control..............................."NORMAL"
otherwise noted:
Picture Control....................................."NORMAL"
Brightness Control..............................."NORMAL"
Perform the adjustments in the following order :
1. Beam Landing
2. Convergence
3. Focus
4. G2(Screen)
5. White Balance
2. Convergence
3. Focus
4. G2(Screen)
5. White Balance
Note : Test Equipment Required.
1. Pattern Generator
5. Oscilloscope
2. Degausser
6. Landing Checker
3. DC Power Supply
7. XCV Adjuster
4. Digital Multimeter
SECTION 2
SET-UP ADJUSTMENTS
Preparation :
• Feed in the white pattern signal.
• Before starting, degauss the entire screen with the
• Feed in the white pattern signal.
• Before starting, degauss the entire screen with the
degausser.
• In order to reduce the geomagnetism on the set's picture
tube, face it east or west.
2-1. BEAM LANDING ADJUSTMENT
1. Input a raster signal with the pattern generator.
2. Loose the deflection yoke(DY) mounting screw, and set
2. Loose the deflection yoke(DY) mounting screw, and set
the purity control to the center as shown below:-
3. Position Neck Assy as shown below:-
4. Set the raster signal of the pattern generator to green.
5. Move the DY backward and adjust the purity control so
5. Move the DY backward and adjust the purity control so
that green is in the center and blue and red are at the
sides evenly.
sides evenly.
Red
Blue
Green
a
b
b
c
c
d
d
a
Purity control
corrects this area.
corrects this area.
Disc magnets or rotatable
disc magnets correct these
areas (a-d).
disc magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
corrects these areas.
Purity control
Neck assy
G2
G1
G3
Align the edge of
the neck assy with
the edge of the G2 grid.
the neck assy with
the edge of the G2 grid.
......................................................................................................................................................................................................................
6. Then move the DY forward and adjust so that the entire
screen becomes green.
7. Now switch over raster signal to red then blue and
confirm the condition.
8. When the position of the DY is determined, tighten it with
the DY mounting screw.
9. If the beam does not land correctly in all the corners of
the screen, use magnet disc to correct it.
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