DOWNLOAD Sony KV-SZ292M50 Service Manual ↓ Size: 10.54 MB | Pages: 72 in PDF or view online for FREE

Model
KV-SZ292M50
Pages
72
Size
10.54 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-sz292m50.pdf
Date

Sony KV-SZ292M50 Service Manual ▷ View online

– 12 –
KV-SZ292M50/M61/M81/N50/N60
RM-GA002
2-14.  Dress Lead Assy, Speaker to Rotation Coil using purse lock 
Ø
 9
2-15.   Dressing of PF board conn assy  
 
(for models with PF board only)
2-16.  Cap Assy, High Voltage installation
Dress Lead Assy, Speaker to center position of Rotation Coil using purse lock Ø 9 as shown. Make sure Earth 
Assy, Coating wire is above Lead Assy, Speaker. This is to keep Lead Assy, Speaker away from Deflection Yoke.
TVSR Requirement: 
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).
Install Cap Assy, High Voltage as shown.
Keep distance of 
0.5mm/kV
Keep distance of 
1mm/kV
90º
>5mm
Earth Assy, Coating
wire
Dress Lead Assy, Speaker to
center position of Rotation Coil
using purse lock Ø 9
DGC Connector is below Conn Assy,
3P VH to keep Conn Assy, 3P VH
away from Heatsink A007 and D604
Keep wires away from 
heatsinks A007, D604 and 
conductive parts
Apply to all SZ292 Narrow 220V CISPR models ONLY
Clamp the ferrite core at the end of the DGC
wire as shown. Position it directly above DGC 
Connector's housing
Purse lock 
Ø
 9
Rotation Coil
Lead Assy, Speaker
(RED+BLK)
Earth Assy, Coating wire is
above Lead Assy, Speaker
Rotation coil
DGC Connector
A007
D604
DGC Band
HV Cap
Rotation coil
DGC
CN605
CN6620
Housing
*For CE Improvement
Connector Assy,
3P VH
DY
Rotation Coil
Attach purse lock Ø 9
here
Lead Assy,
Speaker
Lead Assy,
Speaker
Lead Assy, Speaker
goes behind DGC
Pull wire to 
the right
Pull wire to left
PP tape of DGC
Dress DGC conn wire 
behind PP tape and DGC 
before inserting to plug
Dress Lead Assy, Speaker
directly on to DGC using
purse lock Ø 11
Lead Assy, Speaker
goes behind
PP tape of DGC
– 13 –
KV-SZ292M50/M61/M81/N50/N60
RM-GA002
2-17.  HV cap assy wire dressing
2-18.  AC Power Cord Wire Dressing
Dress Cap Assy, High Voltage with Holder, HV Cable 
combi as shown.
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).
TVSR requirement:
1. Spacing between HV cable and other conductive
part's surface is 1mm/kV or more.
2. Spacing between HV cable's and enclosure with
ventilation or the edge where terminal bracket and  
rear cover meet: 10mm or more.
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.
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.)
Ensure forming of HV cable is OK and no unnatural curve 
occurs. Do not twist or loop the cable.
Install AC cord holder to AC power cord at specified position as shown.
90º
290 ± 5mm 
630 ± 5mm 
DGC
HV cap
Hook AC cord into
CRT support's hook
Make sure AC cord is
straight between 
boss and holder
Attach AC cord onto
holder and insert to
bottom cover
Attach Purse Lock (S)
Ø 8 in to rear cover
DGC
Holder, HV cable combi
230 ± 5 mm
Inner Ring
Min. distance = 1mm/kV
Min. distance = 1mm/kV
Min. distance = 
1mm/kV
Keep distance of HV cable
from other wires, conductive
parts and CRT's carbon area
CRT's carbon
area
CRT's carbon
area
Dress Holder, HV Cable Combi to
Cap Assy, High Voltage
Dress behind boss
AC Cord Holder
– 14 –
KV-SZ292M50/M61/M81/N50/N60
RM-GA002
The following adjustments should be made when a complete
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"
Perform the adjustments in order as follows :
1. Beam Landing
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
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
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
that green is in the center and blue and red are at the
sides evenly.
Red
Blue
Green
a
b
b
c
c
d
d
a
Purity control
corrects this area.
Disc magnets or rotatable
disc magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
Purity control
VM coil
G2
G1
G3
Align the edge of
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.
– 15 –
KV-SZ292M50/M61/M81/N50/N60
RM-GA002
R
R
G
G
B
B
A
A
B
B
B
B
R
G
G
R
B
3-2. CONVERGENCE ADJUSTMENT
Preparation:
• Before starting, perform FOCUS adjustment.
• Picture Mode "CUSTOM"
• Receive dot/cross hatch pattern.
a) Vertical Static Convergence
1. (Moving vertically), adjust the 4 pole magnet to converge
red, green and blue dots in the center of the screen.
2. Tilt the 4 pole magnet and adjust static convergence
to open or close the 4 pole magnet.
3. When the 4 pole magnet is moved in the direction of
arrow A and B, the red, green and blue dots moves as
shown below:-
Moved RV750 (H.STAT)
b) Horizontal Static Convergence
If the blue dots does not converge with the red and green
dots, use the 6 pole magnet to adjust in the manner
described below:-
c) Y Separation axis correction magnet adjustment.
1. Receive cross hatch signal.
2. Set Picture to "MINIMUM", Brightness to
"STANDARD".
3. Adjust the Y separation axis correction magnet on
the Neck Assembly so that the horizontal lines at
the top and bottom of the screen are straight.
Red
Blue
Red
Blue
6 Pole Magnet
4 pole Magnet
DY pocket
Purity
6 Pole
Magnet
4 Pole
Magnet
R G
B
R
G
B
R
G B
R
B
R
G
G
G
B
R
B
4 pole magnet
RV750
H. STAT
RV1800
G2 (SCREEN) 
Center dot
R     G     B
G
R
B
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