Sony KV-SZ292M31 Service Manual ▷ View online
– 20 –
KV-SZ292M31/M50/M51/M88/M91
RM-GA002
Dress Lead Assy, Speaker to center position of Rotation coil using purse lock Ø
9 as shown.
This is to keep Lead Assy, Speaker away from Deflection Yoke.
2.33. Dress Lead Assy, Speaker to Rotation Coil using purse lock Ø 9
Lead Assy, Speaker
(RED+BLK)
(RED+BLK)
Rotation Coil
Purse lock
Ø
9
Rotation Coil
DY
Attach purse lock Ø 9
here
Lead Assy,
Speaker
Rotation coil
Dress Lead Assy, Speaker to
center position of Rotation
Coil using purse lock Ø
9
Lead Assy,
Speaker
Deflection Yoke
Pull wire to the
right
Lead Assy, Speaker
goes behind DGC
Dress Lead Assy, Speaker
directly on to DGC using
purse lock Ø 11
Pull wire to left
Lead Assy, Speaker
goes behind
PP tape of DGC
Dress DGC conn wire behind
PP tape and DGC before
inserting to plug
PP tape of DGC
Install Cap Assy, High Voltage as shown.
2.34. Cap Assy, High Voltage installation
Keep distance of
0.5mm/kV
Keep distance of
0.5mm/kV
Keep distance of
1mm/kV
Keep distance of
1mm/kV
HV Cap
45
Make sure HV Cap is kept away from heat sinks
and conductive parts located on board
TVSR:
1. Keep HV cable away from conductive parts (distance of 1mm/kV).
2. Keep spacing between edge of anode cap & conductive parts (distance of 0.5mm/kV).
3. Keep spacing between edge of anode cap & non-conductive parts (distance of at least 5mm or more).
1. Keep HV cable away from conductive parts (distance of 1mm/kV).
2. Keep spacing between edge of anode cap & conductive parts (distance of 0.5mm/kV).
3. Keep spacing between edge of anode cap & non-conductive parts (distance of at least 5mm or more).
– 21 –
KV-SZ292M31/M50/M51/M88/M91
RM-GA002
Dress Cap Assy, High Voltage with Holder, HV cable combi as shown.
Caution:
Caution:
1) Make sure the specified position is being followed.
2) Position the Cap Assy, High Voltage in the inner ring of the Holder, HV cable combi (see diagram on next page).
2) Position the Cap Assy, High Voltage in the inner ring of the Holder, HV cable combi (see diagram on next page).
3) Hook side hook of Holder, HV cable combi to 8 o'clock position of rotation coil.
2.35. Cap Assy, High Voltage
140 ± 5 mm from FBT to
Holder, HV cable combi
70 ± 5 mm from
FBT to Purse
Lock Ø 9
Purse Lock Ø 9
Fix side hook to
rotation coil
TVSR:
1. Spacing between HV cable and other conductive partís surface is 1mm/kV or more.
1. Spacing between HV cable and other conductive partís surface is 1mm/kV or more.
2. Spacing between HV cable's conductor and enclosure with ventilation
or joint of enclosures such as beznet and rear cover: 10mm or more.
3. Minimum radius of HV cable's bending: Diameter of outer cable x 6 or more.
or joint of enclosures such as beznet and rear cover: 10mm or more.
3. Minimum radius of HV cable's bending: Diameter of outer cable x 6 or more.
DGC
Inner Ring
Rotation coil
Side hook
Top view
Holder, HV cable combi
140 ± 5 mm
Purse Lock Ø 9
Fix side hook of Holder, HV
cable combi to 8 o'clock
position of rotation coil
Keep distance of
1mm/kV
Keep distance of
1mm/kV
Keep distance of
1mm/kV
Ensure purse lock Ø 9 is locked in
position to keep distance of
70 ± 5mm from rubber cap
d
r
70 ± 5 mm
Purse Lock Ø 9
CRT's carbon
area
Keep distance of HV
cable from other wires,
conductive parts and
CRT's carbon area
Side hook
Min. distance = 1mm/kV
Min. distance = 1mm/kV
CAUTION:
Production side please ensure that the
portion of HV cable above the Holder,
HV Cable Combi is kept away from
CRT's carbon area and DGC.
Production side please ensure that the
portion of HV cable above the Holder,
HV Cable Combi is kept away from
CRT's carbon area and DGC.
Also, portion of HV cable below the
Holder, HV Cable Combi needs to be
kept away from conductive parts (DGC,
rotation coil, CRT's carbon area,
speaker wire, etc).
Holder, HV Cable Combi needs to be
kept away from conductive parts (DGC,
rotation coil, CRT's carbon area,
speaker wire, etc).
Ensure forming of HV cable is OK and
no unnatural curve occurs.
no unnatural curve occurs.
– 22 –
KV-SZ292M31/M50/M51/M88/M91
RM-GA002
Install AC cord holder to AC power cord at specified position as shown.
2.36. AC Power Cord Wire Dressing
Hook AC cord into CRT
support's hook
Dress behind boss
Attach AC cord onto holder
and insert to bottom cover
and insert to bottom cover
Make sure AC cord is straight
between boss and holder
Boss
Attach Purse Lock (S)
Ø 8 in to rear cover
– 23 –
KV-SZ292M31/M50/M51/M88/M91
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.
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 order as follows :
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 3
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.
3-1. 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 VM coil 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
VM coil
G2
G1
G3
Align the edge of
the VM coil with
the edge of the G3 grid.
the VM coil with
the edge of the G3 grid.
G4
......................................................................................................................................................................................................................
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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