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HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE MANUAL AZ1-FK CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION LEVEL 3
KDL-22BX300 RM-YD035 US CONFIDENTIAL
KDL-22BX300 RM-YD035 CND
KDL-22BX300 RM-YD035 MX
KDL-22BX300 RM-YD035 LATIN AMERICA
KDL-32BX300 RM-YD035 US
KDL-32BX300 RM-YD035 CND
KDL-32BX300 RM-YD035 MX
CONFIDENTIAL
ELECTRICAL SERVICE MANUAL
INTERNAL ONLY
ORIGINAL MANUAL ISSUE DATE: 2/2010
REVISION DATE SUBJECT
2/2010 No revisions or updates are applicable at this time.
LCD DIGITAL COLOR TV
9-883-846-51
KDL-22BX300/32BX300
TABLE OF CONTENTS
SECTION TITLE PAGE
Safety-Related Component Warning .......................................................................................................................................................................... 3
Safety Check-Out ....................................................................................................................................................................................................... 5
SECTION 1: DIAGRAMS ................................................................................................................................................................................................... 6
1-1. Circuit Boards Location ...................................................................................................................................................................................... 6
1-2. Printed Wiring Boards and Schematic Diagrams Information ............................................................................................................................ 6
1-3. Block Diagram .................................................................................................................................................................................................... 8
1-4. Schematics and Supporting Information ............................................................................................................................................................ 9
A Board Schematic Diagram (1 of 15)................................................................................................................................................................ 9
A Board Schematic Diagram (2 of 15).............................................................................................................................................................. 10
A Board Schematic Diagram (3 of 15).............................................................................................................................................................. 11
A Board Schematic Diagram (4 of 15).............................................................................................................................................................. 12
A Board Schematic Diagram (5 of 15).............................................................................................................................................................. 13
A Board Schematic Diagram (6 of 15).............................................................................................................................................................. 14
A Board Schematic Diagram (7 of 15).............................................................................................................................................................. 15
A Board Schematic Diagram (8 of 15).............................................................................................................................................................. 16
A Board Schematic Diagram (9 of 15).............................................................................................................................................................. 17
A Board Schematic Diagram (10 of 15)............................................................................................................................................................ 18
A Board Schematic Diagram (11 of 15) ............................................................................................................................................................ 19
A Board Schematic Diagram (12 of 15)............................................................................................................................................................ 20
A Board Schematic Diagram (13 of 15)............................................................................................................................................................ 21
A Board Schematic Diagram (14 of 15)............................................................................................................................................................ 22
A Board Schematic Diagram (15 of 15)............................................................................................................................................................ 23
GD1 (Power) Board Schematic Diagram (1 of 2) (KDL-22BX300 ONLY) ........................................................................................................ 26
GD1 (Power) Board Schematic Diagram (2 of 2) (KDL-22BX300 ONLY) ........................................................................................................ 27
G2LE (Power) Board Schematic Diagram (KDL-32BX300 ONLY) .................................................................................................................. 29
H Board Schematic Diagram............................................................................................................................................................................ 31
Switch Unit Schematic Diagram ....................................................................................................................................................................... 32
APPENDIX A: ENCRYPTION KEY COMPONENTS ..................................................................................................................................................... A-1
KDL-22BX300/32BX300 2
KDL-22BX300/32BX300
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 electrical parts list. It is essential that these critical parts be replaced only with the part number
specified in the electrical 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 guarantee.
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:
do not press on the panel or frame edge to avoid the risk of electric shock.
do not scratch or press on the panel with any sharp objects.
do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
do not expose the LCD panel to direct sunlight.
avoid contact with water. It may cause a short circuit within the module.
disconnect the AC adapter when replacing the backlight (CCFL) or inverter circuit.
(High voltage occurs at the inverter circuit at 650Vrms.)
always clean the LCD panel with a soft cloth material.
use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
LEAKAGE CURRENT HOT CHECK CIRCUIT
KDL-22BX300/32BX300 3
KDL-22BX300/32BX300
The 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 :
Part number Diameter Remarks
7-640-005-19 0.3mm 0.25Kg
7-640-005-20 0.4mm 0.50Kg
7-640-005-21 0.5mm 0.50Kg
7-640-005-22 0.6mm 0.25Kg
7-640-005-23 0.8mm 1.00Kg
7-640-005-24 1.0mm 1.00Kg
7-640-005-25 1.2mm 1.00Kg
7-640-005-26 1.6mm 1.00Kg
Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade.
This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
For more information on the use of Lead Free Solder, please refer to http://www.sony-training.com
KDL-22BX300/32BX300 4
KDL-22BX300/32BX300
SAFETY CHECK-OUT
After correcting the original service problem, perform the following The AC leakage from any exposed metal part to earth ground and
safety checks before releasing the set to the customer: from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
1. Check the area of your repair for unsoldered or poorly soldered Leakage current can be measured by any one of three methods.
connections. Check the entire board surface for solder splashes and
bridges. 1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
2. Check the interboard wiring to ensure that no wires are "pinched" or instructions.
touching high-wattage resistors.
2. A battery-operated AC milliampmeter. The Data Precision 245
3. Check that all control knobs, shields, covers, ground straps, and digital multimeter is suitable for this job.
mounting hardware have been replaced. Be absolutely certain that
you have replaced all the insulators. 3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The "limit" indication is 0.75
4. Look for unauthorized replacement parts, particularly transistors, V, so analog meters must have an accurate low voltage scale.
that were installed during a previous repair. Point them out to the The Simpson's 250 and Sanwa SH-63TRD are examples of
customer and recommend their replacement. passive VOMs that are suitable. Nearly all battery-operated digital
multimeters that have a 2 VAC range are suitable (see Figure A).
5. Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend their
How to Find a Good Earth Ground
replacement.
A cold-water pipe is a guaranteed earth ground; the cover-plate
retaining screw on most AC outlet boxes is also at earth ground. If the
6. Check the line cords for cracks and abrasion. Recommend the retaining screw is to be used as your earth ground, verify that it is at
replacement of any such line cord to the customer. ground by measuring the resistance between it and a cold-water pipe
with an ohmmeter. The reading should be zero ohms.
7. Check the antenna terminals, metal trim, "metallized" knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as If a cold-water pipe is not accessible, connect a 60- to 100-watt
described below. trouble- light (not a neon 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).
Leakage Test
To Exposed Metal
Parts on Set
Trouble Light
Ohmmeter
AC Outlet Box
AC
0.15 F Voltmeter
(0.75V)
Cold-water Pipe
Earth Ground
Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.
KDL-22BX300/32BX300 5
KDL-22BX300/32BX300
SECTION 1: DIAGRAMS
1-1. CIRCUIT BOARDS LOCATION
A
GD1 (KDL-22BX300 ONLY)
G2LE (KDL-32BX300 ONLY)
H
SWITCH UNIT
1-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS INFORMATION
All capacitors are in F unless otherwise noted. pF : F 50WV or All voltages are in V.
less are not indicated except for electrolytics and tantalums. S : Measurement impossibility.
All electrolytics are in 50V unless otherwise specified. : B+line.
All resistors are in ohms. k=1000, M=1000k : B-line. (Actual measured value may be different).
Indication of resistance, which does not have one for rating : signal path. (RF)
electrical power, is as follows: Pitch : 5mm
Rating electrical power : 1/ 4 W Circled numbers are waveform references.
1
/ 4 W in resistance, 1/10 W and 1/16 W in chip resistance.
: nonflammable resistor The components identified by shading and ! symbol are critical for safety. Replace
only with part number specified.
: fusible resistor
: internal component The symbol indicates a fast operating fuse and is displayed on the component
side of the board. Replace only with fuse of the same rating as marked.
: panel designation and adjustment for repair
: earth ground
Les composants identifies per un trame et une marque ! sont critiques pour la
: earth-chassis securite. Ne les remplacer que par une piece portant le numero specifie.
All variable and adjustable resistors have characteristic curve B,
unless otherwise noted. Le symbole indique une fusible a action rapide. Doit etre remplace par une
fusible de meme yaleur, comme maque.
Readings are taken with a color-bar signal input.
Readings are taken with a 10M digital multimeter.
NOTE: The components identified by a red outline and a mark contain confidential
Voltages are DC with respect to ground unless otherwise noted. information. Specific instructions must be adhered to whenever these components
Voltage variations may be noted due to normal production are repaired and/or replaced.
See Appendix A: Encryption Key Components in the back of this manual.
tolerances.
KDL-22BX300/32BX300 6
KDL-22BX300/32BX300
REFERENCE INFORMATION Terminal name of semiconductors in silk screen
RESISTOR
: RN METAL FILM
CAPACITOR
: TA TANTALUM
printed circuit ( )
Device
*
Printed symbol Terminal name Circuit
: RC SOLID : PS STYROL Collector
: FPRD NONFLAMMABLE CARBON : PP POLYPROPYLENE 1 Transistor
Base Emitter
: FUSE NONFLAMMABLE FUSIBLE : PT MYLAR
Collector
: RW NONFLAMMABLE WIREWOUND : MPS METALIZED POLYESTER 2 Transistor
: RS NONFLAMMABLE METAL OXIDE Base Emitter
: MPP METALIZED POLYPROPYLENE
: RB NONFLAMMABLE CEMENT : ALB BIPOLAR Cathode
3 Diode
: ADJUSTMENT RESISTOR : ALT HIGH TEMPERATURE Anode
: ALR HIGH RIPPLE Cathode
COIL 4 Diode
Anode (NC)
: LF-8L MICRO INDUCTOR Cathode
5 Diode
Anode (NC)
Common
6 Diode
Anode Cathode
Common
7 Diode
Anode Cathode
Common
8 Diode
Anode Anode
Common
9 Diode
Anode Anode
Common
10 Diode
Cathode Cathode
Common
11 Diode
Cathode Cathode
Anode Cathode
12 Diode Anode Anode
Cathode Anode
Transistor Source
13 Drain D D
(FET) Gate
G G
Transistor Source S S
14 Drain
(FET) Gate
D D
Transistor Source
15 Drain G G
(FET) Gate S S
Emitter
16 Transistor Collector
Base
C1 C2
C2 B1 E1
Transistor B1 B2
17 E2 B2 C1
E1 E2
C1 B2 E2
18 Transistor C1 C2
E1 B1 C2
B1 B2
C1 B2 E2 E1 E2
19 Transistor
E1 B1 C2
E1 E2
C1 B2 E2
20 Transistor B1 B2
E1 B1 C2
C1 C2
C1(B2) C2
E2 B1 E1
21 Transistor B1
C2 C1(B2)
E2 E2
(B2) E1(B2) E2
B1 E1 E2
22 Transistor B1
C1 C2
C1 C2
(B2) E1(B2) C2
E2 E1 B1
23 Transistor
C2 C1
B1
C1 C2
Discrete semiconductor
Ver.1.6
(Chip semiconductors that are not actually used are included.)
KDL-22BX300/32BX300 7
KDL-22BX300/32BX300
1-3. BLOCK DIAGRAM
KDL-22BX300/32BX300 8
KDL-22BX300/32BX300
1-4. SCHEMATICS AND SUPPORTING INFORMATION
A BOARD SCHEMATIC DIAGRAM (1 OF 15)
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Stand By Power ANALOG POWER AV33
A
+3V3SB_PWR +5V_PWR GND
AV33 GND
+3V3SB U27 L27 100R-100MHZ_0805 +5V_PWR
L62 100R-100MHZ_0805 3 2 +5V_PWR +3V3SB_PWR
VIN OUT +3V3SB_PWR
1
+3V3SB
+3V3SB
1
1
1 4 DV11
--
C235 C236 R3249
ADJ VOUT DV11
1
1
1
1
10U_10V_M 0.1U_16V_K C12 C15 C31 C53
1
1
C192 C2 0805_X5R 0603_X7R FR1117-R3GTR 110_F 10U_10V_M 0.1U_16V_K 10U_10V_M 10U_10V_M DV33
DV33
2
2
10U_10V_M 0.1U_16V_K null 0603 0805_X5R 0603_X7R 0805_X5R 0805_X5R AV33
AV33
2
2
2
2
2
0805_X5R 0603_X7R AV125
AV125
2
2
+5V
+5V
1
+12V
R3250 +12V
B 180_F
0603
2
-- DIGITAL POWER DV33 ANALOG POWER AV125
+5V_PWR
U29 DV33
L79 100R-100MHZ_0805
ADJ/GND
3 2 1 TP227
INPUT OUTPUT 4 AV33 AV125
4
C
1
U1 L65 100R-100MHZ_0805
1
1
1
1
1
C237 C27 R27 C22 C21 C26 3 2 1 TP228
10U_10V_M 0.1U_16V_K AZ1084S-ADJTRE1 10U_10V_M 10U_10V_M 0.1U_16V_K VIN OUT
1
1
1
0805_X5R 0603_X7R null 110_F 0805_X5R 0805_X5R 0603_X7R C9 1 4
ADJ VOUT
2
2
2
2
2
1
1
1
0603 C181 0.1U_16V_K R3 C10 C11
2
1
10U_10V_M 0603_X7R FR1117-R3GTR C182 0.1U_16V_K 1U_16V_K
2
0805_X5R null 100_F 10U_10V_M 0603_X7R 0603_X7R
2
2
2
1
0603 0805_X5R
2
2
R3251
--
1
180_F
0603 R4
2
0_J
0603
2
D
Core Power 1.1V Q10 +5V_PWR
+5V P2003EVG
-- L1
+5V 1 null
2
5
6