Sony Bravia KDL-32R420B Betriebsanleitung

REPAIR MANUAL

Self Diagnosis

Supported model

HISTORY INFORMATION FOR THE FOLLOWING MANUAL:

LCD Digital Color TV

9-883-586-01

ITC3 Chassis

Segment: ME

Version Date Subject

1.0 02/20/2014 Original Manual Release Date.

MODEL COMMANDER DESTINATION

KDL-32R420B RM-YD092 US/CND

KDL-40R470B RM-YD092 US/CND

KDL-40R470B

KDL-32R420B/40R470B i

TABLE OF CONTENTS

Cautions and Warnings...................................................................................ii

Section 1 - Specications and Layouts .........................................................1

Specications ................................................................................................1

Checking the Accessories......................................................................................1

Board Layout .................................................................................................2

KDL-32R420B/40R470B........................................................................................2

Wire Dressing................................................................................................3

KDL-32R420B/40R470B........................................................................................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

KDL-32R420B........................................................................................................7

KDL-40R470B........................................................................................................8

No Power Flowchart ..............................................................................................9

Standby LED Blinking Flowchart .........................................................................10

Video Distortion Flowchart................................................................................... 11

Section 3 - Repair Information......................................................................12

Repairing the TV..........................................................................................12

Removing the Table Top Stand............................................................................12

Removing the Lower Cover .................................................................................12

Replacing the Main Board ...........................................................................13

Removing the Speakers ..............................................................................16

Replacing the Switch Unit ...........................................................................16

Section 4 - Exploded View/Part Number Information.................................17

Table Top Stand...........................................................................................17

KDL-32R420B/40R470B .............................................................................18

Connectors ..................................................................................................20

Screws.........................................................................................................21

Section 5 - Accessories/Part Number Information .....................................22

Accessories and Packaging ........................................................................22

Miscellaneous..............................................................................................22

Optional Accessories...................................................................................22

Remote Commander ...................................................................................22

Appendix A: Encryption Key Components ............................................... A-1

KDL-32R420B/40R470B 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

ATTENTION!!

Ces instructions de service sont à l’usage du personnel de service qualié

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

qualié faire ainsi.

ALERTE!!

An 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 identies 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 identies 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

composantes dans les blocs d’alimentation et/ou sur les modules d’inverseur.

KDL-32R420B/40R470B 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

Voltmete

(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-32R420B/40R470B 1

SPECIFICATIONS

System

Television system

ATSC (8VSB terrestrial): ATSC Compliant 8VSB

QAM on cable: ANSI/SCTE 07 2000 (Does not include CableCARD functionality)

Channel coverage

Analog Cable: 1 - 135 / Digital Cable: 1 - 135

Panel system

Speaker output

Input/Output jacks

CABLE/ANTENNA

Y: 1.0 Vp-p, 75 ohms unbalanced, sync negativeVIDEO IN

PB: 0.7 Vp-p, 75 ohms / PR: 0.7 Vp-p, 75 ohms

COMPONENT IN

VIDEO IN

Supported formats: 1080p (60 Hz), 1080i (60 Hz), 720p (60 Hz), 480p, 480i

Audio Input (phono jacks)

Video Input (phono jacks)

HDMI IN 1/MHL

AUDIO

HDMI IN 2 (ARC)

For KDL-40R470B

AUDIO OUT

(Headphone)

Audio output, Headphone (minijack), Subwoofer

NTSC: American TV Standard

Analog Terrestrial: 2 - 69 / Digital Terrestrial: 2 - 69

LCD (Liquid Crystal Display) Panel, LED Backlight

5 W + 5 W (KDL-32R420B), 8 W + 8 W (KDL-40R470B)

75-ohm external terminal for RF inputs

Two channel linear PCM 32, 44.1 and 48 kHz,16, 20 and 24bits, Dolby Digital

HDMI Video: 1080/24p, 1080p (30, 60 Hz), 1080i (60 Hz), 720p (30, 60 Hz), 720/24p, 480p, 480i

MHL Video: 1080/24p, 1080p (30 Hz), 1080i (60 Hz), 720p (30, 60 Hz), 720/24p, 480p, 480i,

PC input

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,

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

1,280 x 1024, 64.0 kHz, 60 Hz, *1,920 x 1080, 67.5 kHz, 60 Hz

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

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

* The 1080p timing when applied to the HDMI input will be treated as a video timing and not PC timing

DC IN 19.5 V AC adapter input

•Optional accessories availability depends on its stock.

•Design and specications are subject to change without notice.

•This TV set incorporates MHL 2.

*Dimensions and mass are approximate values.

Model name

KDL-32R420B

Power and others

Others

Power requirement

Power consumption 75 W

45 W

in use

in standby

Screen size*

200 x 100 100 x 100

31.5

(32 Class)

(measured diagonally)

(inches)

Display resolution

Dimensions* with stand

(inches)

926 × 584 × 175

926 × 556 × 89

36 × 23 × 7

36 × 22 × 3

736 × 473 × 144

29 × 18 5

/8 × 5

without stand (mm)

(inches)

wall-mount hole pattern

(mm)

wall-mount screw size

(mm)

Mass*

(lb)

7,4

16,3

4,9

10,8

(kg)

(lb)

7,0

15,4

4,7

10,4

Optional accessories

Operating temperature

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)

Less than 0.4 W with 120 V AC and less than 0.5 W with 240 V AC

1,920 dots (horizontal) × 1,080 lines (vertical) 1,366 dots (horizontal) × 768 lines (vertical)

(mm)

(kg)with stand

without stand

M6 (8~12 mm)

MHL Cable: DLC-MB10/DLC-MB20/DLC-MC20

32 ºF – 104 ºF (0 ºC – 40 ºC)

KDL-40R470B

736 × 451 × 80

29 × 17 7

/8 × 31

SECTION 1 - SPECIFICATIONS AND LAYOUTS

CHECKING THE ACCESSORIES

- Remo

te Control (1)*

- S

ize AAA Batteries (2)

- Software License (1)

- Stand Installation Guide (1)

- AC Adapter

- F

ixing screws for Table-Top Stand

(M5

× 20) (2)

- Cable holder (3)

- Operating Instructions (1)

- Quick Setup Guide (1)

- Safety Regulatory Booklet (1)

* Please refer to the model name printed

on the remote control.

KDL-32R420B/40R470B 2

BOARD LAYOUT

SWITCH

UNIT

MAIN BOARD

(BIS BOARD)

HIL BOARD

WIRELESS

LAN CARD

SECTION 1 - SPECIFICATIONS AND LAYOUTS

KDL-32R420B/40R470B

KDL-32R420B/40R470B 3

WIRE DRESSING

KDL-32R420B/40R470B

SECTION 1 - SPECIFICATIONS AND LAYOUTS

KDL-32R420B/40R470B 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:

Info

i +

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

000RRE_NOCT500

005 PANEL_ID_NVM_ERR

000TILKCAB600

000RRE_PMET700

[Home] Exit

SELF CHEC

Indicates

an error

has occurred

Indicates

no error

has occurred

00116 00024 00115

SAMPLE SELF CHECK DIAGNOSIS PAGE

KDL-32R420B/40R470B 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.

User

Interface

No Picture

(UI OK) Audio

2X 3X 4X

6X USB

Tuner Tuner

Video SCART

MAIN BOARD

▲ ▲ ▲ ▲ ▲ ▲▲

▲

LIGHT SOURCE BOARD

OPEN CELL

AC ADAPTOR

SPEAKERS

LS HARNESS

SPEAKER HARNESS

Board

Reference

Symptoms - Shutdown.

Power LED blinking

red diagnostics sequences

MAIN HARNESS

FFC CABLE



       

      

   







Component HDMI MHL HP

Main

Speaker Video SCART USBComponent HDMI

*NOTE: REFER TO LCD PANEL SERVICE MANUAL IN REFERENCE LIBRARY DATABASE

FOR CORRECT REPLACEMENT PARTS BASED ON SERIAL NUMBER.

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.

4. Follow the associated flowcharts in the Training Manual to isolate the board.

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 6

SECTION 2 - TROUBLESHOOTING

FLOWCHARTS AND DIAGRAMS

OVERALL BLOCK DIAGRAM

COMPONENT/

COMPOSITE

AUDIO IN (ANALOG)

HDMI 1 (ARC)

AC ADAPTER

LED

IR RX

LCD PANEL, TCON

LED BACKLIGHTS

BIS

OPTICAL AUDIO OUT

MT5560

A/V DECODER

A/V PROCESS

TUNER

USB

HDMI 2 (MHL)

LVDS

AC IN

AUDIO

AMP

AUDIO OUT

MAIN BOARD

CONTROL

KEYS Wi-Fi

BOARD

DEMOD

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