KDL-50R550A, KDL-50R555A, KDL-50R557A, KDL-60R520A, KDL-60R550A, KDL-60R551A, KDL-60R555A, KDL-60R557A, KDL-70R520A, KDL-70R550A, KDL-70R551A, KDL-70R555A, KDL-70R557A - Sony TV Service Manual (repair manual)

kdl-50r550a, kdl-50r555a, kdl-50r557a, kdl-60r520a, kdl-60r550a, kdl-60r551a, kdl-60r555a, kdl-60r557a, kdl-70r520a, kdl-70r550a, kdl-70r551a, kdl-70r555a, kdl-70r557a service manual
Model
KDL-50R550A KDL-50R555A KDL-50R557A KDL-60R520A KDL-60R550A KDL-60R551A KDL-60R555A KDL-60R557A KDL-70R520A KDL-70R550A KDL-70R551A KDL-70R555A KDL-70R557A
Pages
50
Size
3.03 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LEVEL3
File
kdl-50r550a-kdl-50r555a-kdl-50r557a-kdl-60r520a-kd.pdf
Date

Read Sony KDL-50R550A / KDL-50R555A / KDL-50R557A / KDL-60R520A / KDL-60R550A / KDL-60R551A / KDL-60R555A / KDL-60R557A / KDL-70R520A / KDL-70R550A / KDL-70R551A / KDL-70R555A / KDL-70R557A Service Manual online

LCD DIGITAL COLOR TV
  SERVICE MANUAL
9-883-557-51
LEVEL 
3
CONFIDENTIAL
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ELECTRICAL SERVICE 
INTERNAL DISTRIBUTION ONLY
REVISION DATE   
SUBJECT                                                                                                                                                                     
12/9/2013 
 
Original Manual Release Date
Self Diagnosis
Supported model
 
  MODEL  
COMMANDER  
DESTINATION        
KDL-50R550A  
RM-YD094 
US / Canada
KDL-50R550A  
RM-YD094 
Mexico / Latin America
KDL-50R555A 
RM-YD095 
Chile / Peru / Venezuela
KDL-50R557A RM-YD095 
Colombia
KDL-60R520A 
RM-YD096 
US / Canada
KDL-60R550A 
RM-YD094 
US / Canada
KDL-60R550A 
RM-YD094 
Mexico / Latin America
KDL-60R551A 
RM-YD094 
Mexico / Latin America
KDL-60R555A 
RM-YD094 
Chile / Peru / Venezuela
KDL-60R557A  
RM-YD094 
Colombia
KDL-70R520A RM-YD096 
US
KDL-70R550A 
RM-YD094 
US / Canada
KDL-70R550A 
RM-YD094 
Mexico / Latin America
KDL-70R551A 
RM-YD094 
Mexico / Latin America
KDL-70R555A 
RM-YD094 
Chile / Peru / Venezuela
KDL-70R557A  
RM-YD094 
Colombia
RB1FK
 
CHASSIS
Segments: BL
ORIGINAL MANUAL ISSUE DATE: 12/2013
Chassis: RB1FK, BL
Chassis: RB1FK, BL 
2
TABLE OF CONTENTS
SECTION TITLE   
PAGE
SECTION 1:  DIAGRAMS ................................................................................................................................................................................................... 7
1-1.  Printed Circuit Boards and Schematic Diagrams Information .................................................................................................................... 7
1-2.  Circuit Boards Location .................................................................................................................................................................................. 8
1-3.  Connector Diagrams ........................................................................................................................................................................................ 9
 
For 50” Models Only ........................................................................................................................................................................................ 9
 
For 60” & 70” Models Only ............................................................................................................................................................................ 10
1-4.  Main Board (A Board) .................................................................................................................................................................................... 11
 
A Board Component Side .............................................................................................................................................................................. 11
 
A Board Conductor Side ................................................................................................................................................................................ 12
A Board Schematic ........................................................................................................................................................................................ 13
SECTION 2:  POWER SUPPLY BOARD (G BOARD) ..................................................................................................................................................... 39
 
G Board Component Side ............................................................................................................................................................................. 39
 
G4 Schematic for 50” Models Only .............................................................................................................................................................. 40
 
GE60 Schematic for 60” Models Only .......................................................................................................................................................... 41
 
GE70 Schematic for 70” Models Only .......................................................................................................................................................... 43
SECTION 3:  IR BOARD (H BOARD) .............................................................................................................................................................................. 46
 
H Board Component Side .............................................................................................................................................................................. 46
 
H Board Conductor Side ............................................................................................................................................................................... 46
 
H Board Schematic ........................................................................................................................................................................................ 47
SECTION 4:  ELECTRICAL PART LIST .......................................................................................................................................................................... 48
APPENDIX A:  ENCRYPTION KEY COMPONENTS ..................................................................................................................................................... A-1
Chassis: RB1FK, BL
 
CAUTIONS AND WARNINGS
CAUTION
. To reduce the risk of electric shock, do not 
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, in case of live chassis. 
!
 SAFETY-RELATED COMPONENT WARNING!!
shading and
 
!
 
mark on the schematic diagrams and the parts list. It is essential that these critical parts be replaced only 
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!!
ainsi.
ALERTE!!
lors de tout dépannage. 
 
!
 
ATTENTION AUX COMPOSANTS  
RELATIFS A LA SECURITE!!
 
!
 
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 
present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu’un mauvais 
fonctionnement suspecte.
Chassis: RB1FK, BL 
3
Chassis: RB1FK, BL
 
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: 
1.  Do not press on the panel or frame edge to avoid the risk of electric shock.
2.  Do not scratch or press on the panel with any sharp objects.
3.  Do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
4.  Do not expose the LCD panel to direct sunlight.
5.  Avoid contact with water. It may cause a short circuit within the module.
6.  Disconnect the AC power when replacing the backlight (CCFL) or inverter circuit. 
 
(High voltage occurs at the inverter circuit at 650Vrms.)
7.  Always clean the LCD panel with a soft cloth material.
8.  Use care when handling the wires or connectors of 
the inverter circuit. Damaging the wires may cause a 
short.
9.  Protect the panel from ESD to avoid damaging the 
electronic circuit (C-MOS).
10.  During the repair,
 DO NOT leave the Power On for 
more than 1 hour
 while the TV is face down on a 
cloth.
CLEANING THE LCD PANEL
CAUTION: When cleaning the TV, be sure to unplug the power cord to avoid any chance of electric shock.
Clean the cabinet of the TV with a dry soft cloth.
Wipe the LCD screen gently with a soft cloth.
 
Stubborn stains may be removed with a cloth slightly moistened with a solution of mild soap and warm water.
 
If using a chemically pretreated cloth, please follow the instruction provided on the package.
 
Never use strong solvents such as a thinner, alcohol or benzine for cleaning. 
 
Periodic vacuuming of the ventilation openings is recommended to ensure proper ventilation.
 
Do Not
 use paper towels, any type of abrasive pad, rags, rubber or vinyl materials to clean the screen. Using 
these materials could easily scratch the screen which may result in permanent damage.
 
Do Not
 use any cleaning product containing alkaline/acid cleaner, scouring powder, or volatile solvent, such as 
alcohol, ammonia, benzine, thinner or insecticide. Using any of these harsh cleaners may result in permanent 
damage to the screen.
 
Do Not 
spray water or detergent directly onto the TV screen . If liquid drips into the bottom of the screen it may 
cause a failure.
SETTING UP AND CARRYING THE TV
• Disconnect all cables when carrying the TV.
• Carry the TV with the adequate number of people; larger size TVs require two or more people.
• Correct hand placement while carrying the TV is very important for safety and to avoid damage.
Chassis: RB1FK, BL 
4
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