DOWNLOAD Sony KV-AW212M50 Service Manual ↓ Size: 5.79 MB | Pages: 80 in PDF or view online for FREE

Model
KV-AW212M50
Pages
80
Size
5.79 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-aw212m50.pdf
Date
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Sony KV-AW212M50 Service Manual ▷ View online

– 12 –
KV-AW212M50,M50/H,M63,M80,M80/H,M81,
M83,M83/H,N50,N60,N63/H,P50,P52
RM-GA002
2-9.  Lead Assy, Speaker & AC Power Cord Dressing
2-10.  Front Control Wire & Rotational Coil Connector Dressing
Lead Assy, Speaker (RED+BLK) is 
looped from outside around DGC
Ensure wires are 
kept away from 
heatsink.
Right Speaker
Left Speaker
Keep Lead Assy, Speaker 
(RED+BLK) close to CRT surface
Lead Assy, Speaker 
(RED+BLK)
Lead Assy, Speaker (WHT+BLK) 
is sandwiched between DGC & 
CRT surface
Pull AC Power Cord towards right before insert in 
CRT support --> to prevent slacking of wires
Lead Assy, Speaker 
(WHT+BLK)
AC Power Cord
CRT support
1) Keep wire away from CRT support 
     --> prevent rattle sound
2) Do not touch solder side of H1 
Board --> avoid scratching on wire
Lead Assy, Speaker (WHT+BLK)
Make sure Front  Control wire lie flat on 
bottom cover and is dressed around AC 
Power Cord --> Keep wire away from
nearby heatsink  
Front 
Control wire 
2nd DY hook
Rotational Coil is hooked at 2nd DY hook right before
the rotational connector comes out from coil.
DO NOT hook at the bigger diameter of rotational coil (refer to box)
Bigger diameter of 
Rotational Coil
Rotation Coil
Connector
Front Control wire
H1 board
Wire is placed 
behind DGC
CAUTION : during Bottom Cover docking
Front Control wire possible to get trap at edge where 
beznet and bottom cover meet.
1) To prevent this, temporary place wire behind DGC.
2) Take out wire for final dressing shown in Figure 12 (a).
DY
1
2
3
4
Rotation Coil
DY hook
Rotation Coil
Connector
– 13 –
KV-AW212M50,M50/H,M63,M80,M80/H,M81,
M83,M83/H,N50,N60,N63/H,P50,P52
RM-GA002
Purse Lock ø 5
1) DY Connector goes 
underneath of Earth Assy, 
Coating and Connector Assy, 
5P (200V) wire
1
2
2) DY Connector goes above 
Connector Assy, 5P (200V) wire.
DY Connector
Conn Assy, 5P (200V)
Earth Assy, Coating
Make sure DY Connector is on the 
right side of Earth Assy, Coating
Purse Lock ø 5
DY Connector
Conn Assy, 
5P
 (200V)
Earth Assy, 
Coating
Lead Assy, G2
TVSR (Clause 9.4.7) :
1. Keep HV cables away from conductive parts 1mm/KV or more
2.  Spacing between HV cable's and enclosure with ventilation or the edge 
where terminal bracket and rear cover meet: 10 mm or more.
3
Use heatsink height to
estimate purse lock location
Purse Lock ø5
Dress wires away 
from FBT area
3) Dress DY Connector and 
Connector Assy, 5P (200V) 
wire with Purse Lock ø5.
Purse Lock ø5
Use this as a reference to dress ECA, Lead Assy, Focus & G2
Lead Assy, Focus
Lead Assy, G2
Keep Lead Assy, G2 
away from Heat Sink
Keep Lead Assy, G2 
away from HV Cable
(at least 1mm/kV)
Rear view of Lead Assy, Focus & G2, connected 
from FBT A brd to C brd. 
Lead Assy, G2
Lead Assy, Focus
Conn. Assy, 5P (200V)
Earth Assy, 
Coating
Dress tight at the
portion to avoid wire 
touching rear cover 
SAFETY OPERATION
TVSR (Clause 9.4.7) :
All wires must be kept away from 
FBT area by a distance of 10mm or more.
Lead Assy, Focus
2-11.  DY Connector Dressing
2-12.  Lead Assy, G2 and Lead Assy, Focus Dressing
– 14 –
KV-AW212M50,M50/H,M63,M80,M80/H,M81,
M83,M83/H,N50,N60,N63/H,P50,P52
RM-GA002
2-13.  HV Cap Assy dressing
2-14.  AC Power Cord Dressing
CAUTION:
distance < 
1mm/kV
180 ± 5 mm
HV Holder Combi
OK
NG
Ensure HV Holder is beside 
DGC to keep further distance 
from HV Cable
distance > 
1mm/kV
Purse 
Lock ø9
HV Holder 
HV Cable
Dress HV Cable at inner ring
TVSR (Clause 9.4.7) :
A) Spacing between HV 
cable and conductive part's  
surface --> 1mm/kV or more
B) Spacing between edge of 
anode cap and conductive 
parts --> 0.5mm/kV or more
C) Spacing between HV 
cable & enclosure with
ventilation (i.e. Rear 
Cover side) --> 10mm or more.
45
B
A
A
A
A
C
CAUTION:
Keep HV cable facing inwards DY to 
keep HV cable away from ventilation 
side of rear cover --> 10mm or more.
Ensure TVSR 1mm/kV is kept from 
HV cable to DY & other conductive 
parts
SAFETY OPERATION
AC Cord Holder
AC Power Cord
Make sure AC Power Cord 
is dressed between bottom 
cover boss and rail guide
Purse Lock ø8
Dress AC Power Cord 
with purse lock at rear cover
Place purse lock ø9 after the exit of 
DGC Conn from DGC
DGC Conn 
outlet
Black tape
DGC
Purse 
Lock ø9
Gate (2 positions) 
of HV holder
– 15 –
KV-AW212M50,M50/H,M63,M80,M80/H,M81,
M83,M83/H,N50,N60,N63/H,P50,P52
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
2. Degausser
3. DC Power Supply
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. Loosen the deflection yoke mounting screw, and set the
purity control to the center as shown below.
3. Set the raster signal of the pattern generator to green.
4. Move the deflection yoke (DY) backward and adjust the
purity control so that green is in the center and blue and
red are at the sides evenly.
5. Then move the DY forward and adjust so that the entire
screen becomes green.
6. Now switch over raster signal to red then blue and
confirm the condition.
...................................................................................................................................................................................................................... ...........
5. Oscilloscope
6. Landing Checker
7. XCV Adjuster
Purity control
Red
Blue
Green
7. When the position of the DY is determined, tighten it
with the DY mounting screw.
8. If the beam does not land correctly in all corners of the
screen, use magnet disc to correct it.
3-2. CONVERGENCE ADJUSTMENT
Preparation :
•
Before starting, perform FOCUS adjustment.
•
Picture mode STANDARD.
•
Receive dot/cross hatch pattern.
a) Vertical Static Convergence
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.
4 pole magnet
Center dot
R     G     B
G
R
B
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