Sony AZ3TK Schematic
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
Self Diagnosis
Supported model
SERVICE MANUAL
CONFIDENTIAL
ELECTRICAL SERVICE MANUAL
INTERNAL ONLY
ORIGINAL MANUAL ISSUE DATE: 3/2012
REVISION DATE SUBJECT
3/29/2012 Original Manual Release Date
AZ3TK
CHASSIS
LEVEL
CONFIDENTIAL
3
9-883-885-51
LCD DIGITAL COLOR TV
LEVEL
CONFIDENTIAL
3
SERVICE MANUAL
MODEL COMMANDER DESTINATION
KDL-32BX355 RM-YD081 BRAZIL
KDL-40BX455 RM-YD081 BRAZIL
KDL-46BX455 RM-YD081 BRAZIL
AZ3TK
CHASSIS
9-883-885-51
LCD DIGITAL COLOR TV
AZ3TK
TABLE OF CONTENTS
SECTION TITLE PAGE
Cautions and Warnings ....................................................................................................................................................................................................4
Safety Check-Out...............................................................................................................................................................................................................6
SECTION 1: DIAGRAMS
1-1. Printed Circuit Boards and Schematic Diagrams Information ............................................................................................................................8
1-2. Block Diagram ....................................................................................................................................................................................................9
1-3. Connector Diagrams ........................................................................................................................................................................................10
A Board Schematic
G Board Schematic
H Board Schematic
SECTION 2: ELECTRICAL PARTS LIST
KDL-32BX355
KDL-40BX455/46BX455
APPENDIX A: ENCRYPTION KEY COMPONENTS
...................................................................................................................................................................................................8
...........................................................................................................................................................................................11
..........................................................................................................................................................................................28
..........................................................................................................................................................................................29
........................................................................................................................................................................31
..................................................................................................................................................................................................31
..................................................................................................................................................................................31
.....................................................................................................................................................A-1
AZ3TK 3
AZ3TK
CAUTIONS AND WARNINGS
CAUTION
These servicing instructions are for use by qualied 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 qualied 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 identied with
shading and
with the part number specied 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.
!
mark on the schematic diagrams and the parts list. It is essential that these critical parts be replaced only
AZ3TK 4
AZ3TK
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.
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.
AZ3TK 5
SAFETY CHECK-OUT
To Exposed Metal
Parts on Set
0.15 µF
Earth Ground
AC
Voltmeter
(0.75V)
AZ3TK
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)
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)
AZ3TK 6
Trouble Light
AC Outlet Box
Figure B. Checking for earth ground.
Th
e 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.
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 :
rebmuntraP retemaiD skrameR
91-500-046-7mm3.0gK52.0
02-500-046-7mm4.0gK05.0
12-500-046-7mm5.0gK05.0
22-500-046-7mm6.0gK52.0
32-500-046-7mm8.0gK00.1
42-500-046-7mm0.1gK00.1
52-500-046-7mm2.1gK00.1
62-500-046-7mm6.1gK00.1
AZ3TK
Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees celsius.
This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
AZ3TK 7
AZ3TK
SECTION 1: DIAGRAMS
1-1. PRINTED CIRCUIT BOARDS AND SCHEMATIC DIAGRAMS INFORMATION
REFERENCE INFORMATION
All capacitors are in µF unless otherwise noted. pF : µµF 50WV or
less are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specied.
All resistors are in ohms. kΩ=1000Ω, MΩ=1000kΩ
Indication of resistance, which does not have one for rating
electrical power, is as follows: Pitch : 5mm
Rating electrical power :
1
/4 W in resistance, 1/
W and 1/
10
W in chip resistance.
16
1
/4 W
: nonammable resistor
: fusible resistor
: internal component
: panel designation and adjustment for repair
: earth ground
RESISTOR
: RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW NONFLAMMABLE WIREWOUND
: RS NONFLAMMABLE METAL OXIDE
: RB NONFLAMMABLE CEMENT
: ADJUSTMENT RESISTOR
COIL
: LF-8L MICRO INDUCTOR
Terminal name of semiconductors in silk screen
printed circuit ( )
Device Printed symbol Terminal name
Transistor
1
*
: earth-chassis
Transistor
2
All variable and adjustable resistors have characteristic curve B, unless
3
Diode
Cathode
otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10MΩ digital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production
tolerances.
All voltages are in V.
S : Measurement impossibility.
: B+line.
: B-line. (Actual measured value may be different).
: signal path. (RF)
Circled numbers are waveform references.
The components identied by shading and
only with part number specied.
The symbol indicates a fast-blow fuse and is displayed on the component
side of the board. Replace only with fuse of the same rating as marked.
NOTE: The components identied by a red outline and a mark contain condential
information. Specic instructions must be adhered to whenever these components
are repaired and/or replaced.
See Appendix A: Encryption Key Components in the back of this manual.
!
symbol are critical for safety. Replace
Diode
Diode
5
Diode
6
Diode
7
8
Diode
Diode
9
Diode
10
Diode
11
Diode
12
Transistor
13
(FET)
Transistor
14
(FET)
Transistor
15
(FET)
Transistor
16
Transistor
17
Transistor
18
Transistor
19
Transistor
20
Transistor
21
Transistor
22
Transistor
23
Discrete semiconductor
–
(Chip semiconductors that are not actually used are included.)
Anode
Anode
Anode
Anode Cathode
Anode
Anode Anode
Cathode
Cathode
Anode
Anode
Cathode
4
AZ3TK 8
CAPACITOR
: TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE
Collector
Base
Collector
Base
Cathode
Cathode
Common
Common
Common
Common
Common
Common
Drain
Drain
C1
E1
C1
E2
C2
B1
E2
C2
Emitter
Emitter
(NC)
(NC)
Cathode
Anode
Cathode
Cathode
Cathode
Anode
Anode
Source
Gate
Source
Gate
Source
Drain
Gate
Emitter
Collector
Base
B1 E1C2
B2 C1E2
B2 E2
B1 C2
B2 E2C1
B1 C2E1
B2 E2
B1 C2E1
B1 E1
C1(B2)
(B2)
E1
E2
C2C1
(B2)
E1
B1
C1
Anode
Circuit
D
G
D
S
B1
B1
B1
B1
B1
B1
D
G
S
S
D
G
S
C2B2C1
E1
E2
C2B2C1
E1
E2
E2B2E1
C1
C2
C2C1(B2)
E2
E2
E2E1(B2)
C1
C2
C2E1(B2)
C1
C2
Ver.1.6
G
1-2. BLOCK DIAGRAM
AZ3TK
AZ3TK 9
1-3. CONNECTOR DIAGRAMS
Panel
AZ3TK
AC
CN4001
CN201
CN4002
CN4003
CN8001
Main board
Power Board
TCON Board
Key Pad board
IR board
AZ3TK 10
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