Sony KDL-65W850A Service Manual ▷ View online
REPAIR MANUAL
Self Diagnosis
Supported model
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
LCD Digital Color TV
9-883-546-02
RB1G
Chassis
Segment: MH
Version Date
Subject
1.0
09/17/2013
Original Manual Release Date.
2.0
12/13/2013
Updated Section 2 - Troubleshooting. Page 12 added.
Updated Section 3 - Repair Information. Replaced pages 13 and 16.
MODEL
COMMANDER
DESTINATION
KDL-65W850A
RM-YD087/RMF-YD001
US/CND/LA/MX
KDL-65W850A
KDL-65W850A i
TABLE OF CONTENTS
Cautions and Warnings ...................................................................................ii
Section 1 - Specifications and Layouts .........................................................1
Section 1 - Specifications and Layouts .........................................................1
Specifications ................................................................................................1
Checking the Accesories .......................................................................................1
Board Layout .................................................................................................2
KDL-65W850A .......................................................................................................2
Smart Core Block...................................................................................................2
Wire Dressing ................................................................................................3
KDL-65W850A .......................................................................................................3
Smart Core Block...................................................................................................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
No Video Flowchart .............................................................................................10
Video Distorsion Flowchart .................................................................................. 11
No 3D Viewing .....................................................................................................12
Section 3 - Repair Information ......................................................................13
Repairing the TV ..........................................................................................13
Removing the Table-Top Stand ............................................................................13
Removing the Rear Cover ...................................................................................13
Replacing the Main Board ...........................................................................14
Replacing the Power Supply Board .............................................................17
Removing the K Board ................................................................................17
Removing the LD Board ..............................................................................17
Removing the VLE EMI Board ....................................................................17
Replacing the Switch Unit ...........................................................................17
Removing the Speakers ..............................................................................18
Removing the Smart Core Block .................................................................18
Section 4 - Exploded View/Part Number Information .................................19
Table-Top Stand ..........................................................................................19
KDL-65W850A .............................................................................................20
Smart Core Block ........................................................................................22
Connectors ..................................................................................................23
KDL-65W850A .....................................................................................................23
Smart Core Block.................................................................................................23
Screws .........................................................................................................24
Section 5 - Accesories/Part Number Information .......................................25
Accessories and Packaging ........................................................................25
Miscellaneous ..............................................................................................25
Optional Accessories ...................................................................................25
Remote Commander ...................................................................................25
Appendix A: Encryption Key Components ............................................... A-1
KDL-65W850A 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
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.
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.
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.
and/or the Inverter Boards is prohibited.
CAUTION ABOUT THE LITHIUM BATTERY!!
Replace only with the same or equivalent type. Danger of explosion may
occur if battery is replaced incorrectly. Exposed battery should not be in
contact with water.
occur if battery is replaced incorrectly. Exposed battery should not be in
contact with water.
CAUTIONS AND WARNINGS
ATTENTION!!
Ces instructions de service sont à l’usage du personnel de service qualifié
seulement. Pour prévenir le risque de choc électrique, ne pas faire l’entretien
autre que celui contenu dans le Mode d’emploi à moins que vous soyez
autre que celui contenu dans le Mode d’emploi à moins que vous soyez
qualifié faire ainsi.
ALERTE!!
Afin d’eviter tout risque d’electrocution provenant d’un chássis sous tension,
un transformateur d’isolement doit etre utilisé lors de tout dépannage.
!
ATTENTION AUX COMPOSANTS
RELATIFS A LA SECURITE!!
Les composants identifies par une trame et par une marque
!
sur les
schemas de principe, les vues explosees et les listes de pieces sont d’une
importance critique pour la securite du fonctionnement. Ne les remplacer
que par des composants Sony dont le numero de piece est indique dans le
present manuel ou dans des supplements publies par Sony. Les reglages
de circuit dont l’importance est critique pour la securite du fonctionnement
importance critique pour la securite du fonctionnement. Ne les remplacer
que par des composants Sony dont le numero de piece est indique dans le
present manuel ou dans des supplements publies par Sony. Les reglages
de circuit dont l’importance est critique pour la securite du fonctionnement
sont identifies dans le present manuel. Suivre ces procedures lors de
chaque remplacement de composants critiques, ou lorsqu’un mauvais
fonctionnement suspecte.
chaque remplacement de composants critiques, ou lorsqu’un mauvais
fonctionnement suspecte.
ATTENTION!!
Pour des raisons de sécurité, Interdire de réparer ou remplacer les
composantes dans les blocs d’alimentation et/ou sur les modules d’inverseur.
composantes dans les blocs d’alimentation et/ou sur les modules d’inverseur.
AVERTISSEMENT AU SUJET
DE LA PILE AU LITHIUM!!
Ne remplacez qu’avec une pile de type identique ou équivalent. Danger
d’explosion si la pile est remplacée incorrectement. La pile exposée ne
devrait pas être mise en contact avec de l’eau.
devrait pas être mise en contact avec de l’eau.
KDL-65W850A iii
CAUTIONS AND WARNINGS
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety
checks before releasing the set to the customer:
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.
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.
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.
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.
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”.
as described in “Leakage Test”.
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.
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)
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
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)
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