DOWNLOAD Sony KV-SZ252M50 (serv.man3) Service Manual ↓ Size: 8.42 MB | Pages: 72 in PDF or view online for FREE

Model
KV-SZ252M50 (serv.man3)
Pages
72
Size
8.42 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-sz252m50-sm3.pdf
Date

Sony KV-SZ252M50 (serv.man3) Service Manual ▷ View online

– 8 –
KV-SZ252M50/M91
RM-GA002
2-4.  Dressing of Conn Assy, 4P VH
Dress Conn Assy, 4P VH into hook as shown.
Right side
Left side
2-5.  Dressing of Conn Assy, 5P YUV
Dress Conn Assy, 5P YUV around shield case.
Use pin, wires A019 and A017 to dress Conn Assy, 
5P YUV as shown.
 
 
CN007
CN9201
Make sure the UL tape is positioned at
the sharp edge of shield case to prevent
wire from being scratched
Dress Conn Assy, 5P YUV
around shield case
Keep wires away
from R121
CN905
Pin, wire A019
Pin, wire A017
Conn Assy, 5P YUV
2-7.  Installation and Dressing of Earth Assy 
 
Coating
i) Earth Assy, Coating is installed as shown.
2-6.  Dressing of Conn Assy, 4P VM and  
 
Connector Assy, 5P Front In
Dress Conn Assy, 4P VM behind Conn Assy, 5P Front In 
as shown.
Conn Assy, 5P Front In is used to prevent Conn Assy, 
4P VM from bending towards T504, R579 and R5032 
(high temperature parts).
CAUTION:
Keep Conn Assy, 5P Front In away from deflection area
(T504, R5032, etc.) when dressing.
Dress Conn Assy, 4P VM behind
Conn Assy, 5P Front In
Lead Assy, Earth is
above Conn Assy, 5P
Conn Assy, 5P
Front  In
Deflection area
T504
R5032
CN003
CN9201
R579
Conn Assy, 4P VM
Insert Connector Assy,
4P VH into holder
CN6101
CN4102
– 9 –
KV-SZ252M50/M91
RM-GA002
2-8.  Installation and Dressing of Earth Assy Coating
ii) Insert the 2 Earth Assy, Coating wires to CN706 &  
CN707 as shown. Insert Conn Assy, 7P RGB into CN701.
CV board
Heatsink A751
Conn Assy, 7P RGB
CN707
Earth Assy, Coating dressing
CV board
CN707
CN706
CN706
Earth Assy,
Coating wires
CN701
BLK+BLK
to CN706
BLK+BLK
to CN707
2-10.  Dressing of Conn Assy, 5P Front In
Make a 'S' shaped loop on Conn Assy, 5P Front In  
as shown. Keep wires away from heatsink A010.
Next, Conn Assy, 5P Front In is dressed together with  
Lead Assy,Earth using purse lock Ø 5. Refer to next page.
Lead Assy, Earth
Lead Assy, Speaker
Heatsink A010
Conn Assy, 5P
Front In
2-9.  Insertion of Lead Assy, H Static
Insert Lead Assy, H Static into CRT socket and RV750 as 
shown. Make sure the wire is naturally curved, to avoid 
touching CRT neck.
Lead Assy, H static
CRT socket
CRT neck
RV750
– 10 –
KV-SZ252M50/M91
RM-GA002
2-11.  Dress Lead Assy, Earth and Conn Assy, 
 
5P In with purse lock 
Ø
 5
2-12.  CV Board Connector Assy Wire Dressing
Note: Dress while chassis is halfway docked into beznet.
CAUTION:
Prevent tie, cable from touching rear cover or any 
enclosures by turning them away from it --> avoid 
rattle sound. Also prevent tie, cable's end from  
touching solder side of board.
CAUTION:
Prevent tie, cable from touching rear cover or any 
enclosures by turning them away from it --> avoid 
rattle sound. Also prevent tie, cable's end from  
touching solder side of board.
i) Dress Conn Assy, 6P and Conn Assy, 4P VM using tie,
cable at alignment hole 'B' on CV board as shown.
ii) Dress Conn Assy, 4P 200V; Conn Assy, 6P; Conn Assy,
4P VM; Lead Assy, G2 and Lead Assy, Focus with purse
lock Ø 5.
  
Lead Assy, Earth
Conn Assy, 5P Front In
Heatsink A010
Tie, cable at alignment hole 'B'
Conn Assy, 6P
Conn Assy, 4P VM
Conn Assy, 4P VM
Conn Assy, 4P 200V
Conn Assy, 6P
Lead Assy, Focus
Lead Assy, G2
Conn Assy, 4P 200V
Lead Assy, G2
Lead Assy, Focus
Pin, wire A707
Purse lock Ø 5
Purse lock Ø 5
Purse lock Ø 5
Lead Assy, Speaker is not dressed 
together with purse lock. Keep Lead Assy,  
Speaker away from heatsink A010 by
dressing it close to the CRT
Make a 'S' shaped loop on 
Conn Assy, 5P Front In 
and dress together with  
Lead Assy, Earth using 
purse lock Ø 5
Conn Assy,  
5P Front In
Lead Assy, Earth
2-13. Connector Assy Wire Dressing
i) Dress Conn Assy, 7P RGB; Conn Assy, 5P Front In and
Lead Assy, Earth using purse lock Ø 9. Keep wires away from 
heatsinks and high-temperature parts. 
Lead Assy, Earth is behind
Conn Assy, 7P RGB
Purse lock Ø 9
Conn Assy, 7P RGB
Conn Assy, 5P Front In
CN004
Make loop of Conn Assy, 7P RGB as large as 
possible when dressing with purse lock
Lead Assy, Earth
Purse lock Ø 9
Conn Assy, 7P RGB
Lead Assy, Earth
Conn Assy, 5P Front In
Keep Conn Assy, 5P Front In wire in an upward
path from CN9201 to where it is dressed with 
purse lock Ø 9. This is to keep it away from 
deflection area.
– 11 –
KV-SZ252M50/M91
RM-GA002
2-14. Connector Assy Wire Dressing
2-16.  Overall View of Lead Assy, G2; Lead Assy,
 
Focus and Rotation Coil Conn Dressing
Avoid any stress on Lead Assy, G2; Lead Assy, Focus and
terminal at W7001.
CN1802
Rotation Coil Conn
Dress Rotation Coil
connector together with Lead
Assy, G2; Lead Assy Focus
and Conn Assy, 4P 200V
using pin, wire A707
A715
A713
Conn Assy, 4P 200V
W7001
Lead Assy, G2
Lead Assy,
Focus
Keep wire away
from R781
Keep wire away
from R781 and 
heatsinks A713, A715.
2-15.  Overall View of Rotation Coil Conn Dressing
Install Rotation Coil as shown.
1) Coil positioned in clockwise direction.
2) Wire is at 3 o'clock position.
Dress DY Connector; Conn Assy, 4P 200V;
Conn Assy 4P VM and Conn Assy, 6P using purse lock
Ø 9 as shown.
CAUTION:
Prevent wires from touching rear cover or any 
enclosures by turning them away from it--> avoid rattle
sound.
Rotation Coil
DY
Wire from Roation Coil
Earth Assy,
Coating wires
Rotation coil conn is dressed outside
and below Earth Assy, Coating wires.
Note: Make sure DY connector is inserted securely.
 
--> prevent it from coming out.
DY Connector
Conn Assy,
4P 200V
Conn Assy, 6P
  
Conn Assy,  
4P VM
Purse lock Ø 9
DY Conn
Conn Assy,
4P 200V
Conn Assy, 4P
Conn Assy, 6P
Purse lock Ø 9
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