Sony KDL-39R475A Operating instructions

REPAIR MANUAL
Self Diagnosis
Supported model
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
LCD Digital Color TV
9-883-509-02
RB1TK Chassis
Segment: BA
Version Date Subject
1.0 03/28/2013 Original Manual Release Date.
MODEL COMMANDER DESTINATION
KDL-39R475A RM-YD093 BRAZIL
KDL-42R474A RM-YD093 BRAZIL
KDL-42R475A RM-YD093 BRAZIL
KDL-46R475A RM-YD093 BRAZIL
KDL-39R475A

KDL-39R475A/42R474A/42R475A/46R475A i
TABLE OF CONTENTS
Cautions and Warnings...................................................................................ii
Section 1 - Specications and Layouts .........................................................1
Specications ................................................................................................1
Board Layout .................................................................................................2
KDL-39R475A........................................................................................................2
KDL-42R474A/42R475A........................................................................................2
KDL-46R475A........................................................................................................2
Wire Dressing................................................................................................3
KDL-39R475A........................................................................................................3
KDL-42R474A/42R475A........................................................................................3
KDL-46R475A........................................................................................................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 ..............................................................................................9
Standby LED Blinking Flowchart .........................................................................10
No Video Flowchart ............................................................................................. 11
Video Distortion Flowchart...................................................................................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.............................................................18
Removing the Speakers ..............................................................................18
Removing H Board ......................................................................................18
Section 4 - Exploded View/Part Number Information.................................19
Table-Top Stand ..........................................................................................19
KDL-39R475/42R474A/42R475A/46R475A................................................20
Connectors ..................................................................................................22
KDL-39R475A......................................................................................................22
KDL-42R474A/42R475A......................................................................................22
KDL-46R475A......................................................................................................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-39R475A/42R474A/42R475A/46R475A ii
CAUTION!!
These servicing instructions are for use by qualied 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 qualied 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 identied 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 specied in the parts list to prevent
electric shock, 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 warranty.
ATTENTION!!
For safety reasons, component level repair of the Power Supply Boards
and/or the Inverter Boards is prohibited.
CAUTIONS AND WARNINGS

KDL-39R475A/42R474A/42R475A/46R475A 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:
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”.
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
Voltmete
r
(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 uorescent 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

KDL-39R475A/42R474A/42R475A/46R475A 1
SPECIFICATIONS
Sistema
Sistema de televisão
Digital: SBTVD-T
Cobertura de canal
UHF: 14-69
CATV: 1-135
Sistema do Painel
Potência de saída dos Alto-
falantes (RMS)
8 W + 8 W
(127 V CA, THD* 10% sinal 1 KHz, Alto-falante de 8 Ohms, Nível de entrada 500 mVrms)
Entradas/Saídas
CABLE/ANTENNA
ÁUDIO: 500mVrms (Típico)/ Impedância: 47 Kohms
COMPONENT IN
YP B P R (Vídeo componente): Y: 1,0 Vp-p, 75 ohms não balanceado, sincronização negativa
P
B : 0,7 Vp-p, 75 ohms
P
R : 0,7 Vp-p, 75 ohms / Formato do sinal: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p
ÁUDIO: 500 mVrms (Típico) / Impedância: 47 Kohms
HDMI IN 1/MHL
HDMI IN 2 (ARC)
(Exceto KDL-42R474A)
HDMI: Vídeo: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 1080/24p
MHL: Vídeo: 480i, 480p, 576i, 576p, 720p, 720/30p, 1080i, 1080/30p, 1080/24p
Áudio: Dois canais lineares PCM 32, 44,1 e 48 kHz, 16, 20 e 24bits, Dolby Digital
Entrada do PC
iAUDIO OUT
USB
Analógico: NTSC/PAL-M/PAL-N
VHF: 2-13
Painel LCD (Tela de Cristal Líquido)/Backlight de LED
Terminal externo de 75 ohms para entradas RF
VÍDEO: 1 Vp-p, 75 ohms não balanceados, sincronização negativa
Saída de áudio, Fones de ouvido (minitomada)
Foto, Música e Vídeo
VÍDEO IN
* Distorção Harmônica Total.
SECTION 1 - SPECIFICATIONS AND LAYOUTS
Nome do modelo KDL-46R475AKDL-42R475A
KDL-42R474A
Energia e outros
Requisito de energia
Consumo de energia W821W011
em uso
em modo de espera
Tamanho da tela Aprox. 116,8
46
Aprox. 106,7
42
(polegadas medidas
diagonalmente)
padrão do furo de montagem
da parede
002×002003×003
tamanho do parafuso de
montagem da parede
M6 (8-12 mm)
KDL-39R475A
110-220 V CA, 60 Hz
Menos do que 1 W
(cm)
W001
)mm(
)mm(
)mm(
)mm(
Aprox. 98,0
38,5 (classe 39)
Resolução da tela 1.920 pontos (horizontal) × 1.080 linhas (vertical)
Alto-falantes/Área total (2) (mm) 40 x 100
Dimensões com pedestal 1057 × 659 × 204 968 × 607 × 184 560 × 369 × 153
sem pedestal 1057 × 630 × 769 968 × 580 × 79 560 ×345 ×63
Peso )kg(
)kg(
com pedestal 15,6 11,3 8,6
sem pedestal 15,2 11 8,3
Acessórios fornecidos
Rápido (1)/ Folheto de Instruções de Segurança (1)/ Licença de Software (1)/ Folheto
Ginga (1)/Guia de Montagem do Pedestal (1)/ Pedestal (1 conjunto)/ Parafuso (2)
comum a todos os
modelos
Acessórios opcionais
Controle Remoto RM-YD093 (1)/ Pilhas Tamanho AAA (2)/ Manual de Instruções (1)/ Guia
Cabos de conexão / Kit de cinto de segurança
•A disponibilidade dos acessórios opcionais depende do estoque.
•Projeto e especicações técnicas sujeitos a alterações sem aviso prévio.
•Pesos e dimensões são aproximados.

KDL-39R475A/42R474A/42R475A/46R475A 2
SECTION 1 - SPECIFICATIONS AND LAYOUTS
BOARD LAYOUT
KDL-39R475A
TCON
MAIN BOARD
(A BOARD)
POWER SUPPLY
BOARD (G42)
H BOARD
CONTROL
KEYS
KDL-42R474A/42R475A
TCON
MAIN BOARD
(A BOARD)
POWER SUPPLY
BOARD (G42)
H BOARD
CONTROL
KEYS
TCON
MAIN BOARD
(A BOARD)
CONTROL
KEYS
POWER SUPPLY
BOARD (G46)
H BOARD
KDL-46R475A

KDL-39R475A/42R474A/42R475A/46R475A 3
SECTION 1 - SPECIFICATIONS AND LAYOUTS
WIRE DRESSING
KDL-39R475A
KDL-42R474A/42R475A
KDL-46R475A

KDL-39R475A/42R474A/42R475A/46R475A 4
DIAGNOSING THE ERROR
Before servicing the Television:
1. Verify the TV has the symptom the customer indicated.
2. Check to see if the latest Software is installed.
a. If not, install the latest version.
3. Determine the replacement part required.
VIEWING THE SELF CHECK DIAGNOSIS HISTORY
When an error is detected, the Self Check screen records the number of
times the error occurred. This is helpful in conrming past occurrences of
an error and for determining if an error is intermittent when the customer is
not sure what is causing the television to shut down. If the screen displays
a “0”, no error has occurred.
1. Press
POWER
to turn on the TV and then turn it off again.
2. Press the following buttons on the Remote Commander within 1
second of each other:
DISPLAY
Channel 5 Volume
-
POWER
NOTE: This differs from accessing Service Adjustments Mode (Volume +).
SECTION 2 - TROUBLESHOOTING
Self Diagnosis
Supported model
Back <<
002 MAIN_ POWER 001
003 DC_ALERT1 000
003 AUDIO_PROT
000R_ERRECNALAB400
000
000
000RRE_NOCT500
005 PANEL_ID_NVM_ERR
000TILKCAB600
000RRE_PMET700
[Home] Exit
SELF CHEC
K
Indicates
an error
has occurred
Indicates
no error
has occurred
00116 00024 00115
SAMPLE SELF CHECK DIAGNOSIS PAGE

KDL-39R475A/42R474A/42R475A/46R475A 5
SECTION 2 - TROUBLESHOOTING
TRIAGE CHART
Use this general Triage Chart to determine what may possibly be causing the error before going out to the customers location.
1. Confirm the symptom from the customer. Red Dot: (Primary) Most likely defective part.
2. Select that symptom from the chart. Blue Triangle: (Secondary) Possible defective part.
3. Bring the primary component listed for that symptom.
5. Chart Color Code.
Power Audio
2X 3X 5X 6X Dead setNo
Video
Whole
Screen
Distortion
Isolated
Area
Distortion
No Audio
MAIN BOARD
▲ ▲  
POWER SUPPLY   
LCD PANEL 
TCON
  ▲▲
Video Protection Modes
4. Follow the associated flowcharts in the Training Manual to isolate the board.
Board
*NOTE: REFER TO LCD PANEL SERVICE MANUAL IN REFERENCE LIBRARY DATABASE
FOR CORRECT REPLACEMENT PARTS BASED ON SERIAL NUMBER.

KDL-39R475A/42R474A/42R475A/46R475A 6
SECTION 2 - TROUBLESHOOTING
FLOWCHARTS AND DIAGRAMS
OVERALL BLOCK DIAGRAM
COMPONENT/
COMPOSITE
RF
COMPOSITE
HDMI 1
POWER SUPPLY
LED
IR RX
LCD PANEL, TCON
LED BACKLIGHTS
A
H
L
R
ANALOG AUDIO OUT
OPTICAL AUDIO OUT
MT5366
A/V DECODER
A/V PROCESS
TUNER
USB
HDMI 2
LVDS
ALL MODELS
AC IN
CLASS D
AUDIO
AMP
G46 (46")
HEADPHONE AUDIO OUT
G42 (39”/42")
MAIN BOARD
&
LVDS
ONLY 42”/46”
CONTROL
KEYS