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Self Diagnosis
Supported model
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
REPAIR MANUAL
ITC3 Chassis
Segment: ME
MODEL |
COMMANDER |
DESTINATION |
KDL-32R420B |
RM-YD092 |
US/CND |
KDL-40R470B |
RM-YD092 |
US/CND |
KDL-40R470B
Version Date |
Subject |
1.002/20/2014 Original Manual Release Date.
LCD Digital Color TV
9-883-586-01
TABLE OF CONTENTS
Cautions and Warnings................................................................................... |
ii |
Section 1 - Specifications and Layouts.......................................................... |
1 |
Specifications................................................................................................. |
1 |
Checking the Accessories...................................................................................... |
1 |
Board Layout.................................................................................................. |
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KDL-32R420B/40R470B........................................................................................ |
2 |
Wire Dressing................................................................................................. |
3 |
KDL-32R420B/40R470B........................................................................................ |
3 |
Section 2 - Troubleshooting............................................................................ |
4 |
Diagnosing the Error...................................................................................... |
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Viewing the Self Check Diagnosis History............................................................. |
4 |
Triage Chart................................................................................................... |
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Flowcharts and Diagrams.............................................................................. |
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Overall Block Diagram............................................................................................ |
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Power and Control Block Diagram......................................................................... |
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KDL-32R420B........................................................................................................ |
7 |
KDL-40R470B........................................................................................................ |
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No Power Flowchart............................................................................................... |
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Standby LED Blinking Flowchart.......................................................................... |
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Video Distortion Flowchart................................................................................... |
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Section 3 - Repair Information...................................................................... |
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Repairing the TV.......................................................................................... |
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Removing the Table Top Stand............................................................................ |
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Removing the Lower Cover.................................................................................. |
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Replacing the Main Board............................................................................ |
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Removing the Speakers............................................................................... |
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Replacing the Switch Unit............................................................................ |
16 |
Section 4 - Exploded View/Part Number Information |
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Table Top Stand........................................................................................... |
17 |
KDL-32R420B/40R470B.............................................................................. |
18 |
Connectors................................................................................................... |
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Screws......................................................................................................... |
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Section 5 - Accessories/Part Number Information...................................... |
22 |
Accessories and Packaging......................................................................... |
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Miscellaneous.............................................................................................. |
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Optional Accessories.................................................................................... |
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Remote Commander.................................................................................... |
22 |
Appendix A: Encryption Key Components................................................ |
A-1 |
KDL-32R420B/40R470B |
i |
CAUTIONS AND WARNINGS
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 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.
! 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.
ATTENTION!!
For safety reasons, component level repair of the Power Supply Boards and/or the Inverter Boards is prohibited.
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 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 sont identifies dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.
ATTENTION!!
Pour des raisons de sécurité, Interdire de réparer ou remplacer les composantesdanslesblocsd’alimentationet/ousurlesmodulesd’inverseur.
KDL-32R420B/40R470B |
ii |
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
AC
0.15 µF 
Voltmeter
(0.75V)
Earth Ground
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 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)
Trouble Light
AC Outlet Box
Figure B. Checking for earth ground.
KDL-32R420B/40R470B |
iii |
SECTION 1 - SPECIFICATIONS AND LAYOUTS
SPECIFICATIONS
System
Television system |
NTSC: American TV Standard |
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ATSC (8VSB terrestrial): ATSC Compliant 8VSB |
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QAM on cable: ANSI/SCTE 07 2000 (Does not include CableCARD functionality) |
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Channel coverage |
Analog Terrestrial: 2 - 69 / Digital Terrestrial: 2 - 69 |
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Analog Cable: 1 - 135 / Digital Cable: 1 - 135 |
Panel system |
LCD (Liquid Crystal Display) Panel, LED Backlight |
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Speaker output |
5 W + 5 W (KDL-32R420B), 8 W + 8 W (KDL-40R470B) |
Input/Output jacks |
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CABLE/ANTENNA |
75-ohm external terminal for RF inputs |
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VIDEO IN |
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative |
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PB: 0.7 Vp-p, 75 ohms / PR: 0.7 Vp-p, 75 ohms |
COMPONENT IN |
Supported formats: 1080p (60 Hz), 1080i (60 Hz), 720p (60 Hz), 480p, 480i |
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Audio Input (phono jacks) |
VIDEO IN |
Video Input (phono jacks) |
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HDMI IN 1/MHL |
HDMI Video: 1080/24p, 1080p (30, 60 Hz), 1080i (60 Hz), 720p (30, 60 Hz), 720/24p, 480p, 480i |
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HDMI IN 2 (ARC) |
MHL Video: 1080/24p, 1080p (30 Hz), 1080i (60 Hz), 720p (30, 60 Hz), 720/24p, 480p, 480i, |
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PC input |
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For KDL-40R470B |
640 x 480, 31.5 kHz, 60 Hz, 800 x 600, 37.9 kHz, 60 Hz, 1,024 x 768, 48.4 kHz, 60 Hz, |
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1,280 x 768, 47.4 kHz, 60 Hz, 1,280 x 768, 47.8 kHz, 60 Hz, 1,360 x 768, 47.7 kHz, 60 Hz |
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1,280 x 1024, 64.0 kHz, 60 Hz, *1,920 x 1080, 67.5 kHz, 60 Hz |
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For KDL-32R420B |
640 x 480, 31.5 kHz, 60 Hz, 800 x 600, 37.9 kHz, 60 Hz, 1,024 x 768, 48.4 kHz, 60 Hz |
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1,280 x 768, 47.4 kHz, 60 Hz, 1,280 x 768, 47.8 kHz, 60 Hz, 1,360 x 768, 47.7 kHz, 60 Hz |
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AUDIO |
Two channel linear PCM 32, 44.1 and 48 kHz,16, 20 and 24bits, Dolby Digital |
AUDIO OUT |
Audio output, Headphone (minijack), Subwoofer |
(Headphone) |
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DC IN 19.5 V |
AC adapter input |
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* The 1080p timing when applied to the HDMI input will be treated as a video timing and not PC timing
Model name |
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KDL-40R470B |
KDL-32R420B |
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Power and others |
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Power requirement |
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19.5 V DC with AC adapter, Rating: Input 110-240 V AC, 50/60 Hz (U.S.A./Canada 120 V AC, 60 Hz) |
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Power consumption |
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75 W |
45 W |
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in use |
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in standby |
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Less than 0.4 W with 120 V AC and less than 0.5 W with 240 V AC |
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Screen size* |
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31.5 |
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(measured diagonally) |
40 |
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(32 Class) |
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(inches) |
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Display resolution |
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1,920 dots (horizontal) × 1,080 lines (vertical) |
1,366 dots (horizontal) × 768 lines (vertical) |
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Dimensions* with stand |
(mm) |
926 × 584 × 175 |
736 × 473 × 144 |
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(inches) |
36 1/2 × 23 × 7 |
29 × 18 5/8 × 53/4 |
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without stand (mm) |
926 × 556 × 89 |
736 × 451 × 80 |
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(inches) |
36 1/2 × 22 × 3 5/8 |
29 × 17 7/8 × 31/4 |
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wall-mount hole pattern |
200 x 100 |
100 x 100 |
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(mm) |
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wall-mount screw size |
(mm) |
M6 (8~12 mm) |
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Mass* |
with stand |
(kg) |
7,4 |
4,9 |
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(lb) |
16,3 |
10,8 |
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without stand |
(kg) |
7,0 |
4,7 |
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(lb) |
15,4 |
10,4 |
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Others |
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Optional accessories |
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MHL Cable: DLC-MB10/DLC-MB20/DLC-MC20 |
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Operating temperature |
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32 ºF – 104 ºF (0 ºC – 40 ºC) |
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*Dimensions and mass are approximate values.
•Optional accessories availability depends on its stock.
•Design and speci cations are subject to change without notice.
•This TV set incorporates MHL 2.
CHECKING THE ACCESSORIES
-Remote Control (1)*
-Size AAA Batteries (2)
-AC Adapter
-Fixing screws for Table-Top Stand (M5 × 20) (2)
-Cable holder (3)
-Operating Instructions (1)
-Quick Setup Guide (1)
-Safety Regulatory Booklet (1)
-Software License (1)
-Stand Installation Guide (1)
*Please refer to the model name printed on the remote control.
KDL-32R420B/40R470B |
1 |
SECTION 1 - SPECIFICATIONS AND LAYOUTS
BOARD LAYOUT
KDL-32R420B/40R470B
MAIN BOARD
(BIS BOARD)
SWITCH
UNIT
WIRELESS |
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LAN CARD |
HIL BOARD |
KDL-32R420B/40R470B |
2 |
SECTION 1 - SPECIFICATIONS AND LAYOUTS
WIRE DRESSING
KDL-32R420B/40R470B
KDL-32R420B/40R470B |
3 |
SECTION 2 - TROUBLESHOOTING
Self Diagnosis
Supported model
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 confirming 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:
Info i + |
Channel 5 |
Volume - |
POWER |
NOTE: This differs from accessing Service Adjustments Mode (Volume +).
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SELF CHECK |
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Back |
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<< |
Indicates |
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002 |
MAIN_ POWER |
001 |
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003 |
DC_ALERT1 |
000 |
an error |
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003 |
AUDIO_PROT |
000 |
has occurred |
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004 |
BALANCER_ERR |
000 |
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005 |
TCON_ERR |
000 |
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005 |
PANEL_ID_NVM_ERR |
000 |
Indicates |
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006 |
BACKLIT |
000 |
no error |
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007 |
TEMP_ERR |
000 |
has occurred |
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00116 00024 00115
[Home] Exit
SAMPLE SELF CHECK DIAGNOSIS PAGE
KDL-32R420B/40R470B |
4 |
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.
2.Select that symptom from the chart.
3.Bring the primary component listed for that symptom.
4.Follow the associated flowcharts in the Training Manual to isolate the board.
5.Chart Color Code.
Red Dot: (Primary) Most likely defective part.
Blue Triangle: (Secondary) Possible defective part.
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Symptoms - Shutdown. |
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No Picture |
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Audio |
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Power LED blinking |
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User |
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(UI OK) |
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red diagnostics sequences |
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Board |
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Interface |
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Reference |
2X |
3X 4X 5X 6X |
NG |
Tuner USB |
Video Component HDMI |
MHL SCART |
Main |
HP Video Component |
Tuner |
HDMI SCART USB |
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Speaker |
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MAIN BOARD |
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▲ |
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LIGHT SOURCE BOARD |
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▲ |
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OPEN CELL |
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AC ADAPTOR |
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SPEAKERS |
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▲ |
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▲ |
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LS HARNESS |
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MAIN HARNESS |
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SPEAKER HARNESS |
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▲ |
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▲ |
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FFC CABLE |
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*NOTE: REFER TO LCD PANEL SERVICE MANUAL IN REFERENCE LIBRARY DATABASE FOR CORRECT REPLACEMENT PARTS BASED ON SERIAL NUMBER.
To access the most recent version of the Triage documents for the models listed in this manual, login into the Sony Authorized Service Portal at http://www.sony.com/asp.
KDL-32R420B/40R470B |
5 |
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