DOWNLOAD Sony KV-21FA315 Service Manual ↓ Size: 13.36 MB | Pages: 91 in PDF or view online for FREE

Model
KV-21FA315
Pages
91
Size
13.36 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-21fa315.pdf
Date

Sony KV-21FA315 Service Manual ▷ View online

KV-21FA315/21FA515/29FA315/29FA515
KV-21FA315/21FA515/29FA315/29FA515 
10
1-1. REAR COVER REMOVAL
 (KV-29FA515 
PICTURED)
SECTION 1:  DISASSEMBLY
1-2. CHASSIS ASSEMBLY REMOVAL
 (KV-29FA515 
PICTURED)
Chassis Assembly
Claw
C Board
V Board
NOTE: 21” model has 
single CV Board
1  Lift to remove Subwoofer 
       from top of Rear Cover.
2  Remove screws from back of cover.
       5 Screws SCREW +BVTP 3X12 TYPE2 TT (B)
       
Screw +BVTP 4X16 TYPE2 IT-3
3  Remove screws from sides of cover.
       3 SCREW +BVTP 4X16 TYPE2 IT-3 each side
       (KV-29FA315/29FA515 Only)
       
SCREW +BVTP 4X16 TYPE2 IT-3 each side
       (KV-21FA315/21FA515 Only)
4  Remove screws from top of cover.
       4 SCREW +BVTP 4X16 TYPE2 IT-3
       (KV-29FA315/29FA515 Only)
       
SCREW +BVTP 4X16 TYPE2 IT-3
       (KV-21FA315/21FA515 Only)
5  Remove rear cover
2
1
3
4
5
KV-21FA315/21FA515/29FA315/29FA515
KV-21FA315/21FA515/29FA315/29FA515 
11
1-3. SERVICE POSITION
 (KV-21FA515 
SHOWN)
1  Disconnect the CN501 cable from the A Board.
2  Press on catch tab to release A Board.
3  Gently pull the K Board and the A Board forward to access the HC Board.
4  Disconnect the speaker cable from the HC Board. 
5  Gently continuing pulling the A Board and HC Board forward to place in
       service position.
6  Reconnect CN501 and speaker cables
A Board
CV Board
HC Board
NOTE: 29” model has 
seperate C Board and 
V Board
KV-21FA315/21FA515/29FA315/29FA515
KV-21FA315/21FA515/29FA315/29FA515 
12
1.  Discharge the anode of the CRT and remove the 
anode cap.
2.  Unplug all interconnecting leads from the 
defl ection yoke, neck assembly, degaussing coils 
and CRT grounding strap.
3.  Remove the C Board (KV-29FA315/29FA515) or 
CV Board (KV-21FA315/21FA515) from the CRT.
4.  Remove the chassis assembly.
5.  Loosen the neck assembly fi xing screw and 
remove.
6.  Loosen the defl ection yoke fi xing screw and 
remove.
7.  Place the set with the CRT face down on a 
cushion and remove the degaussing coil holders.
8.  Remove the degaussing coils.
9.  Remove the CRT grounding strap and spring 
tension devices.
10. Unscrew the four CRT fi xing screws [located on 
each CRT corner] and remove the CRT  [Take 
care not to handle the CRT by the neck].
1-4. PICTURE TUBE REMOVAL
WARNING: BEFORE REMOVING THE ANODE CAP
High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, 
discharge CRT before attempting to remove the anode cap. Short between anode and CRT 
coated earth ground strap.
 
ANODE CAP REMOVAL PROCEDURE
WARNING: High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to  
remove the anode cap.  Short between anode and coated earth ground strap of CRT. 
NOTE:  After removing the anode cap, short circuit the anode of the picture tube and the anode cap to either the metal chassis, CRT shield, or carbon 
painted on the CRT. 
REMOVAL PROCEDURES
HOW TO HANDLE AN ANODE CAP
1.  Do not use sharp objects which may cause damage to the surface of the anode 
cap. 
2.  To avoid damaging the anode cap, do not squeeze the rubber covering too 
hard. A material fi tting called a shatter-hook terminal is built into the rubber. 
3.  Do not force turn the foot of the rubber cover. This may cause the shatter-hook 
terminal to protrude and damage the rubber.
Turn up one side of the rubber cap in 
the direction indicated by arrow  a  .
Use your thumb to pull the rubber
cap fi rmly in the direction indicated
by arrow  b  .
When one side of the rubber cap separates from 
the anode button, the anode cap can be removed 
by turning the rubber cap and pulling it in the 
direction of arrow  c  .
a
b
Anode Button
c
10
4
1
9
8
7
6
2
3
5
13
KV-21FA315/21FA515/29FA315/29FA515
KV-21FA315/21FA515/29FA315/29FA515
 
KV-21FA315/21FA515 MODELS ONLY
 
CABLE WIRE DRESSING
21FA515,21FA315,21FA515C,21FA315C
REV. 1.1
2/10
Dress right speaker wire using a purse lock (4-
072-499-11) as picture shown.
 Dress left speaker wire through DGC band hook 
and using a 5mm purse lock (3-703-981-02) as 
shown in picture.
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