KDL-40W605B, KDL-48W605B - Sony TV Service Manual (repair manual)

kdl-40w605b, kdl-48w605b service manual
Model
KDL-40W605B KDL-48W605B
Pages
28
Size
5.65 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-40w605b-kdl-48w605b.pdf
Date

Read Sony KDL-40W605B / KDL-48W605B Service Manual online

REPAIR MANUAL
Self Diagnosis
Supported model
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
LCD Digital Color TV
9-883-589-03
RB2G 
Chassis
 
Segment: HM
Version Date 
Subject
1.0  
02/20/2014 
Original Manual Release Date.
2.0 
07/08/2014 
Updated Adjustments Procedure on Section 3 - Repair Information. Pages 11-16 replaced.
3.0 
08/21/2014 
Updated Section 4 - Exploded View/Part Number Information. Pages 17-22 replaced.
   MODEL 
           COMMANDER             DESTINATION
KDL-40W605B 
          RM-YD101 
              BRAZIL
KDL-48W605B 
          RM-YD101 
              BRAZIL
      KDL-48W605B
KDL-40W605B/48W605B i
Cautions and Warnings ...................................................................................ii
Section 1 - Specifications and Layouts .........................................................1
Specifications ................................................................................................1
Checking the Accessories......................................................................................1
Board Layout .................................................................................................2
KDL-40W605B .......................................................................................................2
KDL-48W605B .......................................................................................................2
Wire Dressing ................................................................................................3
KDL-40W605B .......................................................................................................3
KDL-48W605B .......................................................................................................3
Section 2 - Troubleshooting ...........................................................................4
Diagnosing the Error .....................................................................................4
Viewing the Self Check Diagnosis History ............................................................. 4
Triage Chart ...................................................................................................5
Flowcharts and Diagrams ..............................................................................6
Overall Block Diagram ...........................................................................................6
Power and Control Block Diagram.........................................................................7
No Power Flowchart ..............................................................................................8
Standby LED Blinking Flowchart ...........................................................................9
Video Distortion Flowchart ...................................................................................10
Section 3 - Repair Information ......................................................................11
Repairing the TV .......................................................................................... 11
Removing the Table Top Stand .................................................................... 11
Removing the Lower Cover ......................................................................... 11
Replacing the Main Board / Tuner Board ....................................................12
Removing the Speakers ..............................................................................16
Replacing the Switch Unit ...........................................................................16
Section 4 - Exploded View/Part Number Information .................................17
Table Top Stand ...........................................................................................17
KDL-40W605B/48W605B ............................................................................18
Connectors ..................................................................................................21
Screws .........................................................................................................22
Section 5 - Accessories/Part Number Information .....................................23
Accessories and Packaging ........................................................................23
Miscellaneous ..............................................................................................23
Optional Accessories ...................................................................................23
Remote Commander ...................................................................................23
Appendix A: Encryption Key Components ............................................... A-1
TABLE OF CONTENTS
KDL-40W605B/48W605B ii
CAUTION!!
These servicing instructions are for use by qualified service personnel only. 
To reduce the risk of electric shock, do not perform any servicing other than 
that contained in the operating instructions unless you are qualified to do so.
WARNING!!
An isolation transformer should be used during any service to avoid possible 
shock hazard, in case of live chassis. 
!
 
SAFETY-RELATED COMPONENT WARNING!!
There are critical components used in LCD color TVs that are important for 
safety. These components are identified with shading and 
!
 
mark on the 
schematic diagrams and the parts list. It is essential that these critical parts 
be replaced only with the part number specified in the parts list to prevent 
electric shock, fire 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 warranty.
ATTENTION!!
For safety reasons, component level repair of the Power Supply Boards 
and/or the Inverter Boards is prohibited. 
CAUTIONS AND WARNINGS
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety 
checks before releasing the set to the customer:
1.  Check the area of your repair for unsoldered or poorly soldered 
connections. Check the entire board surface for solder splashes 
and bridges.
2.  Check the interboard wiring to ensure that no wires are “pinched” or 
touching high-wattage resistors.
3.  Check that all control knobs, shields, covers, ground straps and 
mounting hardware have been replaced. Be absolutely certain that 
you have replaced all the insulators.
4.  Look for unauthorized replacement parts, particularly transistors, 
that were installed during a previous repair. Point them out to the 
customer and recommend their replacement.
5.  Look for parts which, though functioning, show obvious signs of 
deterioration. Point them out to the customer and recommend their 
replacement.
6.  Check the line cords for cracks and abrasion. Recommend the 
replacement of any such line cord to the customer.
7.  Check the antenna terminals, metal trim, “metallized” knobs, screws 
and all other exposed metal parts for AC leakage. Check leakage 
as described in “Leakage Test”.
KDL-40W605B/48W605B iii
CAUTIONS AND WARNINGS
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and from all 
exposed metal parts to any exposed metal part having a return to chassis, 
must not exceed 0.5 mA (500 microamperes). Leakage current can be 
measured by any one of three methods.
1.  A commercial leakage tester.  
Follow the manufacturers’ instructions provided with the tester.
2.  A battery-operated AC milliammeter. 
3.  Measuring the voltage drop across a resistor by means of a VOM 
or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so 
analog meters must have an accurate low voltage scale. Nearly all 
battery-operated digital multimeters that have a 2 VAC range are 
suitable. (see Figure A)
To Exposed Metal
Parts on Set
0.15 µF
Earth Ground
AC
Voltmeter
(0.75V)
Figure A. Use an AC voltmeter to check AC leakage.
HOW TO FIND A GOOD EARTH GROUND
The cover-plate retaining screw on most AC outlet boxes is at earth ground. 
Verify the AC outlet box retaining screw ground by connecting a 60W to 
100W incandescent (not a neon or fluorescent lamp) between the hot side 
of the receptacle and the retaining screw. Try both slots, if necessary, to 
locate the hot side on the line; the lamp should light at normal brilliance if 
the screw is at ground potential. (see Figure B)
Figure B. Checking for earth ground.
Trouble Light
AC Outlet Box
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Here you can read online and download Sony KDL-40W605B / KDL-48W605B Service Manual in PDF. KDL-40W605B / KDL-48W605B service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony KDL-40W605B / KDL-48W605B TV. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.