Read Sony KDL-40NX700 / KDL-46NX700 (serv.man2) Service Manual online
LCD DIGITAL COLOR TV
SERVICE MANUAL
AZ1-H
CHASSIS
MODEL NAME
REMOTE COMMANDER DESTINATION
9-888-269-52
KDL-40NX700
RM-YD037
US/CND
KDL-40NX700
RM-YD052 MX/LATIN
AMERICA
KDL-46NX700
RM-YD037
US/CND
KDL-46NX700
RM-YD052 MX/LATIN
AMERICA
LEVEL
3
CONFIDENTIAL
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 1/2010
REVISION
DATE
SUBJECT
1/2010
No revisions or updates are applicable at this time
3/2010
Added Safety-Related Warning regarding caution when handling the LCD Panel (Replaced page 3)
Corrected Circuit Boards Location diagram (Replaced page 6)
CONFIDENTIAL
ELECTRICAL SERVICE MANUAL
INTERNAL ONLY
2
KDL-40NX700/46NX700
KDL-40NX700/46NX700
TABLE OF CONTENTS
SECTION TITLE
PAGE
Safety-Related Component Warning .......................................................................................................................................................................... 3
Safety Check-Out ....................................................................................................................................................................................................... 5
Safety Check-Out ....................................................................................................................................................................................................... 5
SECTION 1: DIAGRAMS ................................................................................................................................................................................................... 6
1-1. Circuit Boards Location ...................................................................................................................................................................................... 6
1-2. Printed Wiring Boards and Schematic Diagrams Information ............................................................................................................................ 6
1-3. Block Diagram .................................................................................................................................................................................................... 8
1-4. Schematics and Supporting Information ............................................................................................................................................................ 9
1-2. Printed Wiring Boards and Schematic Diagrams Information ............................................................................................................................ 6
1-3. Block Diagram .................................................................................................................................................................................................... 8
1-4. Schematics and Supporting Information ............................................................................................................................................................ 9
BUHS Board Schematic Diagram (1 of 18) ........................................................................................................................................................ 9
BUHS Board Schematic Diagram (2 of 18) ...................................................................................................................................................... 10
BUHS Board Schematic Diagram (3 of 18) ...................................................................................................................................................... 11
BUHS Board Schematic Diagram (4 of 18) ...................................................................................................................................................... 12
BUHS Board Schematic Diagram (5 of 18) ...................................................................................................................................................... 13
BUHS Board Schematic Diagram (6 of 18) ...................................................................................................................................................... 14
BUHS Board Schematic Diagram (7 of 18) ...................................................................................................................................................... 15
BUHS Board Schematic Diagram (8 of 18) ...................................................................................................................................................... 16
BUHS Board Schematic Diagram (9 of 18) ...................................................................................................................................................... 17
BUHS Board Schematic Diagram (10 of 18) .................................................................................................................................................... 18
BUHS Board Schematic Diagram (11 of 18) .................................................................................................................................................... 19
BUHS Board Schematic Diagram (12 of 18) .................................................................................................................................................... 20
BUHS Board Schematic Diagram (13 of 18) .................................................................................................................................................... 21
BUHS Board Schematic Diagram (14 of 18) .................................................................................................................................................... 22
BUHS Board Schematic Diagram (15 of 18) .................................................................................................................................................... 23
BUHS Board Schematic Diagram (16 of 18) .................................................................................................................................................... 24
BUHS Board Schematic Diagram (17 of 18) .................................................................................................................................................... 25
BUHS Board Schematic Diagram (18 of 18) .................................................................................................................................................... 26
GE2B Board Schematic Diagram (1 of 2) (KDL-46NX700 ONLY) ................................................................................................................... 29
GE2B Board Schematic Diagram (2 of 2) (KDL-46NX700 ONLY) ................................................................................................................... 30
GE3A Board Schematic Diagram (1 of 2) (KDL-40NX700 ONLY) ................................................................................................................... 33
GE3A Board Schematic Diagram (2 of 2) (KDL-40NX700 ONLY) ................................................................................................................... 34
HLR Board Schematic Diagram ....................................................................................................................................................................... 37
BUHS Board Schematic Diagram (2 of 18) ...................................................................................................................................................... 10
BUHS Board Schematic Diagram (3 of 18) ...................................................................................................................................................... 11
BUHS Board Schematic Diagram (4 of 18) ...................................................................................................................................................... 12
BUHS Board Schematic Diagram (5 of 18) ...................................................................................................................................................... 13
BUHS Board Schematic Diagram (6 of 18) ...................................................................................................................................................... 14
BUHS Board Schematic Diagram (7 of 18) ...................................................................................................................................................... 15
BUHS Board Schematic Diagram (8 of 18) ...................................................................................................................................................... 16
BUHS Board Schematic Diagram (9 of 18) ...................................................................................................................................................... 17
BUHS Board Schematic Diagram (10 of 18) .................................................................................................................................................... 18
BUHS Board Schematic Diagram (11 of 18) .................................................................................................................................................... 19
BUHS Board Schematic Diagram (12 of 18) .................................................................................................................................................... 20
BUHS Board Schematic Diagram (13 of 18) .................................................................................................................................................... 21
BUHS Board Schematic Diagram (14 of 18) .................................................................................................................................................... 22
BUHS Board Schematic Diagram (15 of 18) .................................................................................................................................................... 23
BUHS Board Schematic Diagram (16 of 18) .................................................................................................................................................... 24
BUHS Board Schematic Diagram (17 of 18) .................................................................................................................................................... 25
BUHS Board Schematic Diagram (18 of 18) .................................................................................................................................................... 26
GE2B Board Schematic Diagram (1 of 2) (KDL-46NX700 ONLY) ................................................................................................................... 29
GE2B Board Schematic Diagram (2 of 2) (KDL-46NX700 ONLY) ................................................................................................................... 30
GE3A Board Schematic Diagram (1 of 2) (KDL-40NX700 ONLY) ................................................................................................................... 33
GE3A Board Schematic Diagram (2 of 2) (KDL-40NX700 ONLY) ................................................................................................................... 34
HLR Board Schematic Diagram ....................................................................................................................................................................... 37
SECTION 2: ELECTRICAL PARTS LIST ........................................................................................................................................................................ 39
APPENDIX A: ENCRYPTION KEY COMPONENTS ..................................................................................................................................................... A-1
3
KDL-40NX700/46NX700
KDL-40NX700/46NX700
SAFETY-RELATED COMPONENT WARNING
There are critical components used in LCD color TVs that are important for safety. These components are identifi ed with shading and
!
mark on the schematic diagrams and the electrical parts list. It is essential that these critical parts be replaced only with the part number
specifi ed in the electrical parts list to prevent electric shock, fi re, or other hazard.
specifi ed in the electrical parts list to prevent electric shock, fi re, or other hazard.
NOTE: Do not modify the original design without obtaining written permission from the manufacturer or you will void the original parts and
labor guarantee.
labor guarantee.
USE CAUTION WHEN HANDLING THE LCD PANEL
When repairing the LCD panel, be sure you are grounded by using a wrist band.
When installing the LCD panel on a wall, the LCD panel must be secured using the 4 mounting holes on the rear cover.
To avoid damaging the LCD panel:
do not press on the panel or frame edge to avoid the risk of electric shock.
do not scratch or press on the panel with any sharp objects.
do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
do not expose the LCD panel to direct sunlight.
avoid contact with water. It may cause a short circuit within the module.
disconnect the AC adapter when replacing the backlight (CCFL) or inverter circuit.
do not scratch or press on the panel with any sharp objects.
do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
do not expose the LCD panel to direct sunlight.
avoid contact with water. It may cause a short circuit within the module.
disconnect the AC adapter when replacing the backlight (CCFL) or inverter circuit.
(High voltage occurs at the inverter circuit at 650Vrms.)
always clean the LCD panel with a soft cloth material.
use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
During the repair, DO NOT leave the Power On for more than 1 hour while the TV is face down on a cloth.
use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
During the repair, DO NOT leave the Power On for more than 1 hour while the TV is face down on a cloth.
LEAKAGE CURRENT HOT CHECK CIRCUIT
4
KDL-40NX700/46NX700
KDL-40NX700/46NX700
The circuit boards used in these models have been processed using
Lead Free Solder. The boards are identified by the LF logo located
close to the board designation e.g. H1 etc [ see example ]. The
servicing of these boards requires special precautions to be taken as
outlined below.
Lead Free Solder. The boards are identified by the LF logo located
close to the board designation e.g. H1 etc [ see example ]. The
servicing of these boards requires special precautions to be taken as
outlined below.
example
It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints.
Lead Free Solder is available under the following part numbers :
Lead Free Solder is available under the following part numbers :
Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade.
This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
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