Sony KLV-40W450A / KLV-46W450A / KLV-52W450A Service Manual ▷ View online
– 12 –
KLV-40, 46, 52W450A
RM-GA011
Please be careful of the following when perform
servicing.
1. Please protect caution items.
Parts that considered as caution or critical item when
servicing are shown by critical label or seal on cabinet,
chasis, parts etc.
Please make sure to protect these caution notes and
Intruction Manual.
servicing are shown by critical label or seal on cabinet,
chasis, parts etc.
Please make sure to protect these caution notes and
Intruction Manual.
2. Beware with electric shock
Live chassis can caused electric shock because its
connected to the ac power line. Therefore, please use
isolation transformer and gloves when changing parts or
remove plug. Please remember that there is high voltage
during servicing.
connected to the ac power line. Therefore, please use
isolation transformer and gloves when changing parts or
remove plug. Please remember that there is high voltage
during servicing.
3. Use specification parts.
Some parts has its characteristic such as fire retardancy
and voltage value specification. Therefore, please use the
same specification to replace parts. Parts identified by
shading and critical mark on the schematic diagrams,
exploded views, and in the part list are critical for safe
operation. Replace these parts with Sony parts whose part
numbers appear as shown in this manual or in supplements
published by Sony. Circuit adjustments that are critical for
safe operation are identified in this manual. Follow these
procedures whenever critical parts are replaced or improper
operation is suspected.
and voltage value specification. Therefore, please use the
same specification to replace parts. Parts identified by
shading and critical mark on the schematic diagrams,
exploded views, and in the part list are critical for safe
operation. Replace these parts with Sony parts whose part
numbers appear as shown in this manual or in supplements
published by Sony. Circuit adjustments that are critical for
safe operation are identified in this manual. Follow these
procedures whenever critical parts are replaced or improper
operation is suspected.
4. On a safety as before, attaching parts and leading wiring
by using insulated material such as tube and tape, there
are also parts that taken from printed wiring boards.
Therefore when doing the internal wiring by leading or using
clamper, make sure wires are kept away from sharp edges,
heat sink and high temperature or high pressure parts.
are also parts that taken from printed wiring boards.
Therefore when doing the internal wiring by leading or using
clamper, make sure wires are kept away from sharp edges,
heat sink and high temperature or high pressure parts.
5. Safety after sevicing
For safety, please check whether removed screws, parts
and wires are same as before. And check there is no
deterioration of seviced parts. Please make an insulation
checking between plug and external metal parts.
and wires are same as before. And check there is no
deterioration of seviced parts. Please make an insulation
checking between plug and external metal parts.
6. Do not fix internal of power supply board/inverter.
For safety, please do not perform service at the power
supply board or inverter.
supply board or inverter.
TO INSERT THE MDF CONNECTOR
1
Press the middle
part of the connector
to insert till it locks.
2
Press the right
side to confirm it is
locked.
3
Press the left
side to confirm it is
locked.
The connector might not be properly locked when only pressed from the middle.
Be sure to press both sides to confirm it is properly locked.
Be sure to press both sides to confirm it is properly locked.
– 13 –
KLV-40, 46, 52W450A
RM-GA011
SECTION 4
WIRE DRESSING
CAUTION :
1. Do not overpull the wires during dressing
1. Do not overpull the wires during dressing
--> avoid disconnection of wires.
2. Make sure wires are kept away from
sharp edges, heatsinks & other
high-temperature parts.
high-temperature parts.
4-1-1.
Wire dressing overview
4-1-2.
Connector Assy 30P to Illumination
logo dressing
4-1-3.
Connector Assy 30P to H3E board dressing
P2-5
P6
P7
P10
P11
Tape (LCD)
Connector Assy 30P
to Illumination logo
Keep wire straight from
connector
connector
Tape
straight
Tape (LCD)
Dress wire with Tape (LCD)
at white UL tape
at white UL tape
White UL tape
Common with EM-H 46 & 52
Conn Assy 30P
Panel clear
Caution:
Ensure Conn Assy 30P is not placed on boss
--> prevent perforation of wire from rear cover screw
Ensure Conn Assy 30P is not placed on boss
--> prevent perforation of wire from rear cover screw
Boss
Rib
Panel clear
Bezel
1) Conn Assy 30P is placed between boss & rib
2) Conn Assy 30P is below of bezel boss
--> to prevent gap between panel clear & bezel
2) Conn Assy 30P is below of bezel boss
--> to prevent gap between panel clear & bezel
Common with EM-H 46 & 52
1
2
LEGEND :
Hook
Slide Clamp
4-1. (KLV-40W450A)
– 14 –
KLV-40, 46, 52W450A
RM-GA011
4-1-4. Connector Assy 30P & SP Connector Assy 4P dressing
4-1-5. Connector Assy 30P & Sp Connector Assy 4P at Frame Bottom dressing
Datum:
Speaker bracket edge
Speaker bracket edge
Conn Assy 30P
Tape SP Conn Assy 4P & Conn Assy 30P with
NWFT --> use speaker bracket edge as datum
NWFT --> use speaker bracket edge as datum
Exit of Conn Assy 30P
SP Conn Assy 4P
NWFT
Common with EM-H 46 & 52
Datum
Conn assy 30P + Sp Conn Assy 4P
Datum:
Frame bottom hole
Frame bottom hole
Datum
NWFT
Caution:
1) Do not overlap at dotted area
2) Ensure wires are pulled
straight at yellow dotted lines
1) Do not overlap at dotted area
2) Ensure wires are pulled
straight at yellow dotted lines
Common with EM-H 46 & 52
2
1
3
– 15 –
KLV-40, 46, 52W450A
RM-GA011
4-1-6. Connector Assy 4P & Connector Assy 30P at T-CON dressing
4-1-7. Main board harness dressing overview
4-1-8. SP Connector Assy 4P & Connector Assy
30P dressing
Conn Assy 4P
to Top Switch
Dress Conn Assy 4P using Tape(LCD)
by referring to corner edge of T-CON shield
by referring to corner edge of T-CON shield
Conn Assy 30P
Dress Conn Assy 4P using Tape(LCD)
by referring to corner edge of T-CON shield
by referring to corner edge of T-CON shield
Tape (LCD)
To determine wire taping location:
1) pull wire straight down
2) pull wire to T-CON edge
--> prevent wire stress after rear cover docking
1) pull wire straight down
2) pull wire to T-CON edge
--> prevent wire stress after rear cover docking
Common with EM-H 46 & 52
LVDS
Sp Conn Assy 4P
Connector assy 30P
Conn Assy 13P
P9
P8
Dress SP Conn Assy 4P & Conn Assy 30P with
NWFT at white UL tape below screw hole tab
Dress SP Conn 4P at bracket hole edge
NWFT at white UL tape below screw hole tab
Dress SP Conn 4P at bracket hole edge
Sp Conn Assy 4P
NWFT
Datum:
Bracket hole
Bracket hole
Tape(LCD)
2
1
Connector assy 30P
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