Toshiba TheaterWide 20HL85 Bedienungsanleitung

SERVICE MANUAL

LCD COLOR TELEVISION

DOCUMENT CREATED IN JAPAN, September, 2005

20HL85

FILE NO. 050-200537GR

(MFR’S VERSION A)

The above model is classified as a green product (*1), as indicated by the underlined serial number.

This Service Manual describes replacement parts for the green product. When repairing this green

product, use the part(s) described in this manual and lead-free solder (*2).

For (*1) and (*2), see the next page.

(For Canada)

A1-1

(*1) GREEN PRODUCT PROCUREMENT

The EC is actively promoting the WEEE & RoHS Directives that define standards for recycling

and reuse of Waste Electrical and Electronic Equipment and for the Restriction of the use of

certain Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any

marketing of new products containing lead.

Increasing attention is given to issues related to the global environmental. Toshiba Corporation

recognizes environmental protection as a key management tasks, and is doing its utmost to

enhance and improve the quality and scope of its environmental activities. In line with this,

Toshiba proactively promotes Green Procurement, and seeks to purchase and use products,

parts and materials that have low environmental impacts.

Green procurement of parts is not only confined to manufacture. The same green parts used in

manufacture must also be used as replacement parts.

(*2) LEAD-FREE SOLDER

This product is manufactured using lead-free solder as a part of a movement within the CE

industry at large to be environmentally responsible. Lead-free solder must be used in the servicing

and repair of this product.

WARNING

This product is manufactured using lead free solder.

DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT !

The melting temperature of lead-free solder is higher than that of leaded solder by 86°F to 104°F

(30°C to 40°C). Use of a soldering iron designed for lead-based solders to repair product made

with lead-free solder may result in damage to the component and or PCB being soldered. Great

care should be made to ensure high-quality soldering when servicing this product especially

when soldering large components, through-hole pins, and on PCBs as the level of heat

required to melt lead-free solder is high.

SERVICING NOTICES ON CHECKING

1. KEEP THE NOTICES

As for the places which need special attentions,

they are indicated with the labels or seals on the

cabinet, chassis and parts. Make sure to keep the

indications and notices in the operation manual.

3. USE THE DESIGNATED PARTS

2. AVOID AN ELECTRIC SHOCK

There is a high voltage part inside. Avoid an

electric shock while the electric current is

flowing.

The parts in this equipment have the specific

characters of incombustibility and withstand

voltage for safety. Therefore, the part which is

replaced should be used the part which has

the same character.

Especially as to the important parts for safety

which is indicated in the circuit diagram or the

table of parts as a mark, the designated

parts must be used.

5. PUT PARTS AND WIRES IN THE

ORIGINAL POSITION AFTER

ASSEMBLING OR WIRING

There are parts which use the insulation

material such as a tube or tape for safety, or

which are assembled in the condition that

these do not contact with the printed board.

The inside wiring is designed not to get closer

to the pyrogenic parts and high voltage parts.

Therefore, put these parts in the original

positions.

PERFORM A SAFETY CHECK AFTER

SERVICING

Confirm that the screws, parts and wiring which

were removed in order to service are put in the

original positions, or whether there are the

portions which are deteriorated around the

serviced places serviced or not. Check the

insulation between the antenna terminal or

external metal and the AC cord plug blades.

And be sure the safety of that.

(INSULATION CHECK PROCEDURE)

Unplug the plug from the AC outlet.

Remove the antenna terminal on TV and turn

on the TV.

Insulation resistance between the cord plug

terminals and the eternal exposure metal

[Note 2] should be more than 1M ohm by

using the 500V insulation resistance meter

[Note 1].

If the insulation resistance is less than 1M

ohm, the inspection repair should be

required.

[Note 1]

If you have not the 500V insulation

resistance meter, use a Tester.

[Note 2]

External exposure metal: Antenna terminal

Earphone jack

4. BE CAREFUL WITH THE

LCD PANEL

Avoid a shock to the panel while servicing.

Take enough care to deal with it.

When you exchange IC and Transistor with a heat sink, apply silicon grease on the contact section of

the heat sink. Befor applying new silicon grease, remove all the old silicon grease.

(Old grease may cause damages to the IC and Transistor.)

IMPORTANT

A1-2

Please include the following informations when you order parts. (Particularly the VERSION LETTER.)

1. MODEL NUMBER and VERSION LETTER

The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be

found at the end of the SERIAL NUMBER.

2. PART NO. and DESCRIPTION

You can find it in your SERVICE MANUAL.

HOW TO ORDER PARTS

TABLE OF CONTENTS

GREEN PRODUCT PROCUREMENT ........................................................................................

LEAD-FREE SOLDER ................................................................................................................

SERVICING NOTICES ON CHECKING.....................................................................................

HOW TO ORDER PARTS ..........................................................................................................

IMPORTANT ...............................................................................................................................

TABLE OF CONTENTS..............................................................................................................

GENERAL SPECIFICATIONS ...................................................................................................

DISASSEMBLY INSTRUCTIONS

1. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ................................................

SERVICE MODE LIST ................................................................................................................

CONFIRMATION OF HOURS USED .........................................................................................

WHEN REPLACING EEPROM (MEMORY) IC ..........................................................................

ELECTRICAL ADJUSTMENTS..................................................................................................

BLOCK DIAGRAMS

SCALER/LVDS/MICON/ADC/JACK/AV_SW2 ........................................................................

AV_SW/TUNER/JACK/STEREO/SOUND AMP .....................................................................

POWER ...................................................................................................................................

INTERFACE.............................................................................................................................

MICON2 ...................................................................................................................................

AC ADAPTER ..........................................................................................................................

PRINTED CIRCUIT BOARDS

AV/OPERATION/REMOCON..................................................................................................

SCALER...................................................................................................................................

AC ADAPTER/HD-MI ..............................................................................................................

SCHEMATIC DIAGRAMS

AV SWITCH1 ...........................................................................................................................

TUNER/JACK ..........................................................................................................................

STEREO/SOUND AMP ...........................................................................................................

POWER ...................................................................................................................................

OPERATION/REMOCON........................................................................................................

MICON1 ...................................................................................................................................

SCALER...................................................................................................................................

ADC..........................................................................................................................................

LVDS........................................................................................................................................

JACK ........................................................................................................................................

AV SWITCH2 ...........................................................................................................................

REGULATOR...........................................................................................................................

AC ADAPTER ..........................................................................................................................

INTERFACE.............................................................................................................................

MICON2 ...................................................................................................................................

WAVEFORMS .............................................................................................................................

MECHANICAL EXPLODED VIEWS...........................................................................................

MECHANICAL REPLACEMENT PARTS LIST .........................................................................

ELECTRICAL REPLACEMENT PARTS LIST...........................................................................

A1-1

A1-2

A2-1

A3-1~A3-6

B-1, B-2

C-1

C-2

C-2~C-4

D-1~D-4

E-1, E-2

E-3, E-4

E-5, E-6

E-7, E-8

E-9, E-10

E-11, E-12

F-1~F-4

F-5, F-6

F-7, F-8

G-1, G-2

G-3, G-4

G-5, G-6

G-7, G-8

G-9, G-10

G-11, G-12

G-13, G-14

G-15, G-16

G-17, G-18

G-19, G-20

G-21, G-22

G-23, G-24

G-25, G-26

G-27, G-28

G-29, G-30

H-1~H-3

I-1~I-4

J1-1, J1-2

J2-1~J2-6

A2-1

GENERAL SPECIFICATIONS

G-1 TV LCD LCD Size / Visual Size 20.04 inch / 508.9mmV

System LCD Type Color TFT LCD

Number of Pixels 1366(H) x 768(V)

View Range Left/Right 89/89 degree

Up/Down 89/89 degree

Color System NTSC

Speaker 2 Speaker

Position Front

Size 1.8 x 3.9 inch

Impedance 16 ohm

Sound Output Max 2.5W + 2.5W

10%(Typical) ---

G-2 Tuning Broadcasting System US System M

System Tuner and System 1Tuner

Receive CH Destination US (W/CABLE)

CH Coverage 2~69, 4A, A-5~A-1, A~I, J~W, W+1~W+84

Intermediate Picture(FP) 45.75MHz

Frequency Sound(FS) 41.25MHz

FP-FS 4.50MHz

Preset CH No

Stereo/Dual TV Sound US-Stereo

Tuner Sound Muting Yes

G-3 Signal Video Signal Input Level 1 V p-p/75 ohm

Output Level --

S/N Ratio (Weighted) --

Horizontal Resolution at DVD Mode --

RGB Signal Output Level --

Audio Signal Input Level -8.0dBm/50k ohm

Output Level at DVD --

at TV --

Digital Output Level --

S/N Ratio at DVD (Weighted) --

Harmonic Distortion --

Frequency Response : at DVD --

at Video CD --

at SVCD --

at CD --

G-4 Power Power Source AC 120V, 60Hz

DC --

Power Consumption at AC 90W at 120V 60Hz

at DC --

Stand by (at AC) 1W at 120V 60Hz

Energy Star Yes

Per Year -- kWh/Year

Protector Power Fuse Yes

Safety Circuit Yes

IC Protector(Micro Fuse) Yes

G-5 Regulation Safety UL/CSA

Radiation FCC/IC

Laser --

G-6 Temperature Operation +5oC ~ +40oC

Storage -20oC ~ +60oC

G-7 Operating Humidity Less than 80% RH

A3-1

GENERAL SPECIFICATIONS

G-8 On Screen Menu Yes

Display Menu Type Icon

Picture Yes

Mode(Picture preference) Yes

Brightness Yes

Contrast Yes

Color Yes

Tint Yes

Sharpness Yes

Cable Clear Yes

Color Temperature Yes

Reset Yes

Audio Yes

MTS Yes

Bass Yes

Treble Yes

Balance Yes

Stable Sound Yes

Speakers On/Off No

Dolby Virtual No

WOW SRS 3D Yes

WOW Focus Yes

WOW Tru Bass Yes

HDMI Yes

Reset Yes

Setup Yes

Language Yes

Clock Set Yes

TV/CABLE Yes

CH Program Yes

Add/ Erase Yes

Closed Caption Yes

Picture Size Yes

Picture Scroll No

Cinema Mode Yes

Aspect Yes

Back Lighting Yes

Option Yes

On Timer Yes

Favorite CH Yes

CH Label Yes

VIDEO Label Yes

Locks Yes

V-Chip Set No

CH Lock Yes

Video Lock Yes

Game Timer Yes

Panel Lock Yes

New Password Yes

PC Monitor Picture Menu Yes

Brightness Yes

Contrast Yes

Hor Position Yes

Ver Position Yes

Phase Yes

Clock Yes

Auto Adjust No

Red Yes

Green Yes

Blue Yes

WXGA INPUT Yes

Reset Yes

PC Monitor Audio Menu Yes

Bass Yes

Treble Yes

Balance Yes

Stable Sound Yes

WOW SRS 3D Yes

WOW Focus Yes

WOW Tru Bass Yes

Reset Yes

A3-2

GENERAL SPECIFICATIONS

Control Level Yes

Volume Yes

Brightness Yes

Contrast Yes

Color Yes

Tint Yes

Sharpness Yes

Bass Yes

Treble Yes

Balance Yes

Picture Scroll No

Back Lighting Yes

H Position Yes

V Position Yes

Phase Yes

Clock Yes

Red Yes

Green Yes

Blue Yes

Stereo, SAP, Mono Yes

CH / AV(Line) / PC Yes

Color Stream HD (Component) Yes

HDMI Yes

Channel (TV/Cable) Yes

CH Label Yes

Video Label Yes

Clock Yes

Game Timer Yes

Panel Lock Yes

On Timer Yes

Sleep Timer Yes

Reset Yes

Sound Mute Yes

V-chip Rating No

NOT AVAILABLE Yes

Picture Size Yes

G-9 OSD Language English, French, Spanish

G-10 Clock and Sleep Timer Max Time 120 Min

Timer Step 10 Min

On Timer Program Yes

Wake Up Timer No

Timer Back-up (at Power Off Mode) more than -- Min Sec

A3-3

GENERAL SPECIFICATIONS

G-11 Remote Unit RC-KK

Control Glow in Dark Remocon Yes

Remocon Format TOSHIBA

Format TOSHIBA

Custom Code 40-BF h

Power Source Voltage(D.C) 3V

UM size x pcs UM-4 x 2 pcs

Total Keys 44 Keys

Keys Power Yes

Input Yes

Display Yes

Mute Yes

1Yes

2Yes

3Yes

4Yes

5Yes

6Yes

7Yes

8Yes

9Yes

0Yes

100 / +10 Yes

CH Return / Ent Yes

CH + Yes

CH - Yes

VOL + Yes

VOL - Yes

SLEEP Yes

Picture Size Yes

UP Yes

LEFT / FAV - Yes

MENU/ENTER/DVD MENU Yes

RIGHT / FAV + Yes

DOWN Yes

EXIT Yes

Multi Brand Keys TV Yes

CBL/SAT Yes

VCR Yes

DVD Yes

ENTER Yes

PAUSE Yes

PLAY Yes

STOP Yes

REW Yes

FF Yes

SKIP/SEARCH|<< Yes

SKIP/SEARCH>>| Yes

TOP MENU Yes

REC Yes

CLEAR Yes

TV/VCR Yes

A3-4

GENERAL SPECIFICATIONS

G-12 Features Auto Shut Off Yes

Auto Search No

Comb Filter Yes

3 -D

Game Position No

Power On Memory Yes

Variable Audio Out No

Mode (Picture Preference) Yes

Color Temparature Control Yes

Cable Clear Yes

SAP Yes

Stable Sound Yes

Virtual Dolby No

SRS WOW(SRS 3D/Focus/Tru Bass) Yes

CABLE Yes

CH Program (Auto CH Memory) Yes

Closed Caption Yes

Picture Size Yes

Picture Scroll No

Cinema Mode Yes

Aspect Yes

On Timer Yes

Sleep Timer Yes

Favorite CH Yes

CH Label Yes

VIDEO Label Yes

V-Chip No

CH Lock Yes

Video Lock Yes

Game Timer(Max Time:120Min) Yes

Panel Lock Yes

Direct Input Selection Yes

PC Monitor Input Yes

Available Scan Rates (Component/HDMI) 480i/480p/720p/1080i

Auto Setup(Language/CH Program) Yes

Freeze frame No

G-13 Accessories Owner's Manual Language English / French

w/Guarantee Card Yes

Remote Control Unit Yes

Rod Antenna No

Poles --

Terminal --

Loop Antenna No

Terminal --

U/V Mixer No

DC Car Cord (Center+) No

Guarantee Card No

Warning Sheet No

Circuit Diagram No

Antenna Change Plug No

Service Facility List No

Important Safeguard No

Dew/AHC Caution Sheet No

Quick Set-up Sheet No

Battery Yes

UM size x pcs UM-4 x 2 pcs

OEM Brand No

AC Adapter Yes

AC Cord (for AC Adapter) Yes

AV Cord (2Pin-1Pin) No

Registration Card (NDL Card) No

300ohm to 75ohm Antenna Adapter No

Sheet Information (Return) No

Sheet Information (HDMI) No

Screw for wall hanging No

A3-5

GENERAL SPECIFICATIONS

G-14 Interface Switch Top Power (Tact) Yes

Channel Up/Menu Up Yes

Channel Down/Menu Down Yes

Volume Up/Menu > Yes

Volume Down/Menu < Yes

Menu Yes

Play No

Eject No

Skip+, Search+ No

Skip-, Search- No

Still/Pause No

Stop No

Main Power SW No

Input Select Yes

Indicator Power Yes (Red)

Stand-by No

On Timer No

Terminals Rear Video Input 1 RCA x 1

Audio Input 1 RCA x 2(Stereo)

S - Input 1 Yes

Video Output No

Audio Output No

Component Input(w/ Analog Audio L/R) RCA x 5

HDMI Input(w/ Analog Audio L/R) HDMI x 1(RCA x 2)

PC Monitor Input(w/ Analog Audio L/R) No

Digital Audio Output No

DC Jack Yes

VHF/UHF Antenna Input F Type

AC Outlet No

Side Video Input 2 RCA x 1

Audio Input 2 RCA x 2(Stereo)

PC Monitor Input(w/ Analog Audio L/R) Dsub15pin x 1(RCA x 2)

Other Terminal Headphone

G-15 Set Size Approx. W x D x H (mm) 554 x 220 x 448

w/o Handle, Stand Approx. W x D x H (mm) 554 x 94 x 403

G-16 Weight Net (Approx.) 9.0kg (19.8 lbs)

Net w/o Handle, Stand (Approx.) 7.5kg (16.5 lbs)

Gross (Approx.) 12.0kg (26.5 lbs)

G-17 Carton Master Carton No

Content --- Sets

Material --- / ---

Dimensions W x D x H(mm) ---

Description of Origin ---

Gift Box Material Double/ Brown

W/Color Photo Label No

W/Handle No

Dimensions W x D x H(mm) 654 x 338 x 565

Description of Origin No(Assembled In Thailand)

Drop Test 1 Corner / 3 Edges / 6 Surfaces

Height (cm) 62

Container Stuffing (40' container) 492 Sets

G-18 Material Cabinet Front PS 94V0 DECABROM

Rear PS 94V0 DECABROM

PCB Non-Halogen Demand No

Eyelet Demand No

G-19 Environment Environmental standard requirement (by buyer) Green PROCUREMENT of TOSHIBA

Pb-Free Phase 3 (Phase 3A)

G-20 AC Power Adapter Provided Accessories

Power Requirement AC 120V 60Hz

Power Consumption at AC 100 W

DC Output DC Jack : DC24V 3.4A

Dimension Approx. W x D x H (mm) 200 x 90 x 60

Weight Approx. 1.5kg (3.3 lbs)

A3-6

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