Toshiba 32af46c User manual

SERVICE MANUAL

COLOR TELEVISION

DOCUMENT CREATED IN JAPAN, February, 2006 GREEN

32AF46C

(MFR’S VERSION A)

FILE NO. 050-200608GR

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.

(*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 the restricted substances.

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 consumer

products 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.

A1-1

SERVICING NOTICES ON CHECKING

6. AVOID AN X-RAY1. 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

5. TAKE CARE TO DEAL WITH THE

CATHODE-RAY TUBE

Safety is secured against an X-ray by consider-

ing about the cathode-ray tube and the high

voltage peripheral circuit, etc.

Therefore, when repairing the high voltage pe-

ripheral circuit, use the designated parts and

make sure not modify the circuit.

Repairing except indicates causes rising of high

voltage, and it emits an X-ray from the cathode-

ray tube.

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

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

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.

4. 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.

In the condition that an explosion-proof cathode-

ray tube is set in this equipment, safety is

secured against implosion. However, when

removing it or serving from backward, it is

dangerous to give a shock. Take enough care to

deal with it.

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

Headphone jack

A1-2

Licensed by BBE Sound, Inc. under USP5510752 and 5736897.

BBE and BBE symbol are registered trademarks of BBE

Sound, Inc.

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 OF ANODE CAP ...............................................................................................

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

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

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

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

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

BLOCK DIAGRAMS ...................................................................................................................

PRINTED CIRCUIT BOARDS

MAIN ........................................................................................................................................

CRT/POWER/STEREO JACK.................................................................................................

SCHEMATIC DIAGRAMS

MICON .....................................................................................................................................

CHROMA .................................................................................................................................

DEFLECTION ..........................................................................................................................

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

SOUND ....................................................................................................................................

TUNER/STEREO.....................................................................................................................

AV ............................................................................................................................................

COMB/FILTER.........................................................................................................................

CRT/SVM.................................................................................................................................

SUB POWER ...........................................................................................................................

AV JACK ..................................................................................................................................

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

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

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

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

A1-1

A1-2

A2-1

A3-1~A3-5

B1-1

B2-1, B2-2

C-1

D-1~D-6

E-1, E-2

F-1~F-4

F-5, F-6

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

H-1, H-2

I-1, I-2

J1-1

J2-1~J2-5

A2-1

GENERAL SPECIFICATIONS

G-1 TV CRT CRT Size / Visual Size 32 inch / 802.0mmV

System CRT Type Flat

Magnetic Field BV/BH +0.45G/0.18G

Color System NTSC

Speaker 2 Speaker

Position Front

Size 2.0 x 4.7 Inch

Impedance 8 ohm

Sound Output MAX 5.0+5.0 W

10%(Typical) - W

NTSC3.58+4.43 /PAL60Hz No

G-2 Tuning Broadcasting System US System M

System Tuner and System 1Tuner

Receive CH Destination USA(W/ Cable)

2 - 69, 4A, A-5 - A-1,

CH Coverage 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 Yes

Tuner Sound Muting Yes

G-3 Power Power Source AC 120V AC 60Hz

Power Consumption at AC 137 W at AC 120 V 60 Hz

Stand by (at AC) 3 W at AC 120 V 60 Hz

Per Year -- kWh/Year

Protector Power Fuse Yes

Safety Circuit Yes

IC Protector(Micro Fuse) No

G-4 Regulation Safety CSA

Radiation IC

X-Radiation HWC

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

Storage -20oC ~ +60oC

G-6 Operating Humidity Less than 80% RH

A3-1

GENERAL SPECIFICATIONS

G-7 On Screen Menu Yes

Display Menu Type Icon

Picture Yes

Contrast Yes

Brightness Yes

Color Yes

Tint Yes

Sharpness Yes

Sound Yes

Bass Yes

Treble Yes

Balance Yes

BBE On/Off Yes

Stable Sound On/Off Yes

Surround On/Off Yes

Set Up Yes

TV/Cable Yes

Auto CH Memory Yes

Add/ Delete Yes

Option Yes

Language Yes

CH Label Yes

Favorite CH Yes

V-Chip No

Lock Yes

On/Off Timer Yes

Color Stream DVD/DTV Yes

Control Level Yes

Volume Yes

Brightness Yes

Contrast Yes

Color Yes

Tint Yes

Sharpness Yes

Tuning No

Bass Yes

Treble Yes

Balance Yes

Back Light No

Stereo,Audio Output,SAP Yes

Video Yes

Color Stream Yes

Channel(TV/Cable) Yes

CH Label Yes

Game Timer Yes

Sleep Timer Yes

Sound Mute Yes

V-chip Rating No

16: 9 Yes

G-8 OSD Language English French Spanish

G-9 Clock and Sleep Timer Max Time 120 Min

Timer Step 10 Min

On/Off Timer Program(On Timer / Off Timer) Yes

Wake Up Timer No

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

A3-2

GENERAL SPECIFICATIONS

G-10 Remote Unit RC-GW

Control Glow in Dark Remocon Yes

Format Toshiba

Remocon Format Toshiba

Custom Code TV:40-BF h

Power Source Voltage(D.C) 3V

UM size x pcs UM-4 x 2 pcs

Total Keys 50 Keys

Keys Power Yes

1 Yes

2 Yes

3 Yes

4 Yes

5 Yes

6 Yes

7 Yes

8 Yes

9 Yes

0 Yes

100 Yes

CH Up Yes

CH Down Yes

Volume Up Yes

Volume Down Yes

TV/Caption/Text Yes

CH1/CH2 Yes

TV/Video(TV/AV) Yes

CH RTN/CH ENT(Quick View) Yes

Sleep Yes

RE Call(Call) Yes

Reset Yes

Menu/Enter Yes

Mute Yes

Exit Yes

MTS(Audio Select) Yes

Fav.Up Yes

Fav.Down Yes

16: 9 Yes

Multi Brand Keys CH Up(VCR) Yes

CH Down(VCR) Yes

Pause/Still Yes

TV/VCR(VCR) Yes

FF Yes

Rew Yes

Rec Yes

Play Yes

Stop Yes

TV Yes

VCR Yes

Cable Yes

DVD Yes

CODE Yes

Volume Up(DVD) Yes

Volume Down(DVD) Yes

DVD CLEAR Yes

TOP MENU Yes

DVD MENU Yes

DISPLAY Yes

A3-3

GENERAL SPECIFICATIONS

G-11 Features Auto Degauss Yes

Auto Shut Off Yes

Canal+ No

Cable Yes

Anti-theft No

Rental No

Memory(Last CH) Yes

Memory(Last Volume) Yes

V-Chip No

Type --- Type

BBE Yes

Auto Search No

CH Allocation No

SAP Yes

Just Clock Function No

CH Label Yes

VM Circuit Yes

Full OSD No

Premiere No

Comb Filter Yes

3 Lines

Auto CH Memory Yes

Hotel Lock No

Closed Caption Yes

Stable Sound Yes

FBT Leak Test Protect Yes

CH Lock Yes

Video Lock Yes

Game Timer (Max Time:120 Min) Yes

Energy Star No

Favorite CH Yes

Surround Yes

16:9 Mode Yes

G-12 Accessories Owner's Manual Language English/French

W/ Warranty 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 Station List No

Important Safety Instruction No

Dew/AHC Caution Sheet No

AC Plug Adapter No

Quick Set-up Sheet No

Battery Yes

UM size x pcs UM-4 x 2

OEM Brand No

AC Cord No

AV Cord (2Pin-1Pin) No

Registration Card (NDL Card) No

PTB Sheet No

ESP Card No

300 ohm to 75 ohm Antenna Adapter No

A3-4

GENERAL SPECIFICATIONS

G-13 Interface Switch Front Power Yes

System Select No

Main Power SW No

Sub Power No

Channel Up Yes

Channel Down Yes

Volume Up Yes

Volume Down Yes

Rear AC/DC No

TV/Cable Selector No

Degauss No

Main Power SW No

Indicator Power Yes(RED)

Stand-by No

On Timer No

Terminals Front Video Input = VIDEO3 RCA

Audio Input = VIDEO3 RCA x 2

Other Terminal Head Phone

Rear Video Input(Rear1) = VIDEO1 RCA

Video Input(Rear2) = VIDEO2 RCA

Audio Input(Rear1) = VIDEO1 RCA x 2

Audio Input(Rear2) = VIDEO2 RCA x 2

Video Output RCA

Audio Output RCA x 2

Euro Scart No

Color Stream RCA x 3

S Input Yes

Diversity No

Ext Speaker No

DC Jack 12V(Center +) No

VHF/UHF Antenna Input F Type

AC Outlet No

G-14 Set Size Approx. W x D x H (mm) 774 x 572 x 687

G-15 Weight Net (Approx.) 62.0 kg ( 136.7lbs)

Gross (Approx.) 70.5 kg ( 155.4lbs)

G-16 Carton Master Carton No

Content ---- Sets

Material -- /--

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

Description of Origin No

Gift Box Material Double/Brown

Dimensions W x D x H(mm) 917 x 766 x 838

Design As per Buyer's

Description of Origin Yes

Drop Test Natural Dropping At 1 Corner / 2

Edges / 4 Surfaces

Height (cm) 40 (ORION SPEC:25)

Container Stuffing 72 Sets/40' container

G-17 Cabinet Material Cabinet Cabinet Front PS 94V0 DECABROM

Cabinet Rear PS 94V0 NON-DECABROM

PCB Non-Halogen Demand No

Eyelet Demand Yes

G-18 Environment Environmental standard requirement (by buyer) Green procurement of TOSHIBA

Pb-free Phase3(Phase3A)

A3-5

B1-1

1. REMOVAL OF ANODE CAP

Read the following NOTED items before starting work.

After turning the power off there might still be a potential

voltage that is very dangerous. When removing the

Anode Cap, make sure to discharge the Anode Cap's

potential voltage.

Do not use pliers to loosen or tighten the Anode Cap

terminal, this may cause the spring to be damaged.

REMOVAL

1. Follow the steps as follows to discharge the Anode Cap.

(Refer to Fig. 1-1.)

Connect one end of an Alligator Clip to the metal part of a

flat-blade screwdriver and the other end to ground.

While holding the plastic part of the insulated Screwdriver,

touch the support of the Anode with the tip of the

Screwdriver.

A cracking noise will be heard as the voltage is discharged.

Flip up the sides of the Rubber Cap in the direction of the

arrow and remove one side of the support.

(Refer to Fig. 1-2.)

DISASSEMBLY INSTRUCTIONS

GND on the CRT

Screwdriver

Alligator Clip

Support CRT

GND on the CRT

Rubber Cap

CRT Support

Fig. 1-1

Fig. 1-2

3. After one side is removed, pull in the opposite direction to

remove the other.

NOTE

Take care not to damage the Rubber Cap.

INSTALLATION

1. Clean the spot where the cap was located with a small

amount of alcohol. (Refer to Fig. 1-3.)

Location of Anode Cap

Fig. 1-3

NOTE

Confirm that there is no dirt, dust, etc. at the spot where

the cap was located.

Arrange the wire of the Anode Cap and make sure the

wire is not twisted.

Turn over the Rubber Cap. (Refer to Fig. 1-4.)

Fig. 1-4

4. Insert one end of the Anode Support into the anode button,

then the other as shown in Fig. 1-5.

6. Confirm that the Support is securely connected.

Put on the Rubber Cap without moving any parts.

CRT Support Fig. 1-5

B2-1

Masking Tape

(Cotton Tape)

DISASSEMBLY INSTRUCTIONS

REMOVAL

Put the Masking Tape (cotton tape) around the Flat

Package IC to protect other parts from any damage.

(Refer to Fig. 2-1.)

Fig. 2-1

NOTE

REMOVAL AND INSTALLATION OF

FLAT PACKAGE IC

Some ICs on the PCB are affixed with glue, so be

careful not to break or damage the foil of each IC leads

or solder lands under the IC when removing it.

NOTE

Masking is carried out on all the parts located within 10

mm distance from IC leads.

Blower type IC

desoldering machine

Heat the IC leads using a blower type IC desoldering

machine. (Refer to Fig. 2-2.)

Fig. 2-2

NOTE

Do not add the rotating and the back and forth

directions force on the IC, until IC can move back and

forth easily after desoldering the IC leads completely.

When IC starts moving back and forth easily after

desoldering completely, pickup the corner of the IC using a

tweezers and remove the IC by moving with the IC

desoldering machine. (Refer to Fig. 2-3.)

Blower type IC

desoldering

machine

IC Fig. 2-3

Tweezers

Peel off the Masking Tape.4.

Absorb the solder left on the pattern using the Braided

Shield Wire. (Refer to Fig. 2-4.)

NOTE

Do not move the Braided Shield Wire in the vertical

direction towards the IC pattern.

Braided Shield Wire

Soldering Iron

Fig. 2-4

IC pattern

B2-2

DISASSEMBLY INSTRUCTIONS

Supply soldering

from upper position

to lower position

Supply the solder from the upper position of IC leads

sliding to the lower position of the IC leads.

(Refer to Fig. 2-6.)

Fig. 2-6

Soldering IronSolder

Absorb the solder left on the lead using the Braided Shield

Wire. (Refer to Fig. 2-7.)

Fig. 2-7

Soldering Iron

Braided Shield Wire

NOTE

Do not absorb the solder to excess.

When bridge-soldering between terminals and/or the

soldering amount are not enough, resolder using a Thin-tip

Soldering Iron. (Refer to Fig. 2-8.)

Fig. 2-8

Thin-tip Soldering Iron

NOTE

When the IC leads are bent during soldering and/or

repairing, do not repair the bending of leads. If the

bending of leads are repaired, the pattern may be

damaged. So, always be sure to replace the IC in this

case.

Finally, confirm the soldering status on four sides of the IC

using a magnifying glass.

Confirm that no abnormality is found on the soldering

position and installation position of the parts around the IC.

If some abnormality is found, correct by resoldering.

Solder temporarily

Soldering Iron

INSTALLATION

Take care of the polarity of new IC and then install the new

IC fitting on the printed circuit pattern. Then solder each

lead on the diagonal positions of IC temporarily.

(Refer to Fig. 2-5.)

Fig. 2-5

Solder temporarily

SERVICE MODE LIST

This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.

To enter the Service Mode, press both set key and remote control key for more than 2 seconds.

Set Key Remocon Key Operations

VOL. (-) MIN 0Releasing of V-CHIP PASSWORD.

VOL. (-) MIN 1

Initialization of factory data.

NOTE: Do not use this for normal servicing.

If you set factory initialization, the memories are reset such as the channel setting,

and the POWER ON total hours.

VOL. (-) MIN 6

POWER ON total hours is displayed on the screen.

Refer to the "CONFIRMATION OF HOURS USED".

Can be checked of the INITIAL DATA of MEMORY IC.

Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".

VOL. (-) MIN Display of the Adjustment MENU on the screen.

Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).

CONFIRMATION OF HOURS USED

POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.

NOTE: If you set factory initialization, the total hours is reset to "0".

Set the VOLUME to minimum.

Press both VOL. DOWN button on the set and Channel

button (6) on the remote control for more than 2 seconds.

After the confirmation of using hours, turn off the power.

ADDRESS DATA

INIT 00 50

CRT ON 0010

FIG. 1

Initial setting content of MEMORY IC.

POWER ON total hours.

= (16 x 16 x 16 x thousands digit value)

+ (16 x 16 x hundreds digit value)

+ (16 x tens digit value)

+ (ones digit value)

WHEN REPLACING EEPROM (MEMORY) IC

If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to

ensure correct data settings while making reference to TABLE 1.

Table 1

10.

11.

The unit will now have the correct DATA for the new MEMORY IC.

Enter DATA SET mode by setting VOLUME to minimum.

Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 2 seconds.

ADDRESS and DATA should appear as FIG 1.

ADDRESS is now selected and should "blink". Using the VOL. UP/DOWN button on the remote, step through the ADDRESS

until required ADDRESS to be changed is reached.

Press ENTER to select DATA. When DATA is selected, it will "blink".

Again, step through the DATA using VOL. UP/DOWN button until required DATA value has been selected.

Pressing ENTER will take you back to ADDRESS for further selection if necessary.

Repeat steps 3 to 6 until all data has been checked.

When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.

After the data input, set to the initializing of shipping.

Turn POWER on.

Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 2 seconds.

After the finishing of the initializing of shipping, the unit will turn off automatically.

50 E8 0B 44 5F B3 24 B7 3E AC

+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F

INI

70 00 00 03 00 06 60 3F 0F10 00 0D E2 A8 21 49 00

00 BB 04 80 80 80 59

C-1

ELECTRICAL ADJUSTMENTS

D-1

FUNCTION

CONTRAST MAX

CONTRAST CENT

CONTRAST MIN

COLOR MAX

COLOR CENTER

COLOR MIN

TINT

SHARPNESS

CB DL

CR DL

CB PED

CR PED

PARABOLA

CORNER

TRAPWZIUM

LEVEL

SEPARATION1

SEPARATION2

1. ADJUSTMENT PROCEDURE

Read and perform these adjustments when repairing the

circuits or replacing electrical parts or PCB assemblies.

CAUTION

Use an isolation transformer when performing any

service on this chassis.

Before removing the anode cap, discharge electricity

because it contains high voltage.

When removing a PCB or related component, after

unfastening or changing a wire, be sure to put the wire

back in its original position.

When you exchange IC and Transistor with a heat sink,

apply silicon grease on the contact section of the heat

sink. Before applying new silicon grease, remove all the

old silicon grease. (Old grease may cause damages to

the IC and Transistor.)

Prepare the following measurement tools for electrical

adjustments.

1. Oscilloscope

2. Digital Voltmeter

3. Multi-sound Generator

4. Pattern Generator

On-Screen Display Adjustment

1. In the condition of NO indication on the screen.

Press the VOL. DOWN button on the set and the

Channel button (9) on the remote control for more than 2

seconds to appear the adjustment mode on the screen

as shown in Fig. 1-1.

Fig. 1-1

00 OSD H 30

Use the Channel UP/DOWN button or Channel button

(0-9) on the remote control to select the options shown

in Fig. 1-2.

Press the MENU button on the remote control to end the

adjustments.

FUNCTION

OSD H

CUT OFF

H. VCO

H. PHASE

AFC GAIN

V. SHIFT

H. SIZE

V. SIZE

V. LINERITY

VS CORRECTION

R DRIVE

B DRIVE

R CUT OFF

G CUT OFF

B CUT OFF

BRIGHT MAX

BRIGHT CENT

BRIGHT MIN

NO.

Fig. 1-2

NO.

2. BASIC ADJUSTMENTS

2-1: CONSTANT VOLTAGE

Place the set in AV MODE without signal.

Connect the digital voltmeter to the TP003.

Adjust the VR502 until the digital voltmeter is 135 ±0.5V.

•

2-2: CUT OFF

Place the set in Aging Test for more than 15 minutes.

Place the set in AV MODE without signal.

Using the remote control, set the brightness and

contrast to normal position.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (01) on the remote control to

select “CUT OFF”.

Adjust the Screen Volume until a dim raster is obtained.

2-3: WHITE BALANCE, WHITE BALANCE CS

NOTE: Adjust after performing CUT OFF adjustment.

10.

11.

12.

13.

Place the set in Aging Test for more than 15 minutes.

Receive the gray scale pattern from the Pattern Generator

with Burst on.

Using the remote control, set the brightness and contrast

to normal position.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (12) on the remote control to

select “R. BIAS”.

Press the CH. UP/DOWN button on the remote control to

select the “R. BIAS”, “G. BIAS”, “B. BIAS”, “B. DRIVE” or

“R. DRIVE”.

Adjust the VOL. UP/DOWN button on the remote control

to whiten the R. BIAS, G. BIAS, B. BIAS, B. DRIVE and

R. DRIVE at each step tone sections equally.

Perform the above adjustments 5 and 6 until the white

color is achieved.

Press the TV/VIDEO button on the remote control to set

to the CS mode.

Receive the gray scale pattern from the Pattern Generat

or with Brust On.

If the picture is too much green.Activate the adjustment

mode display of Fig. 1-1 and press the channel button

(28) on the remote control to select “CB PED”.

Adjust the VOL. UP/DOWN button on the remote control

to select the step up.

If the picture is too much red.Activate the adjustment

mode display of Fig. 1-1 and press the channel button

(29) on the remote control to select “CR PED”.

Adjust the VOL. UP/DOWN button on the remote control

to select the step down.

ELECTRICAL ADJUSTMENTS

D-2

2-4: COLOR CENT

10.

Receive the color bar pattern. (RF Input)

Using the remote control, set the brightness, contrast,

color and tint to normal position.

Connect the oscilloscope to TP804.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button Hon the remote control to

select "COLOR CENT".

Adjust the VOLTS RANGE VARIABLE knob of the

oscilloscope until the range between white 100% and

0% is set to 4 scales on the screen of the oscilloscope.

Press the VOL. UP/DOWN button on the remote control

until the red color level is adjusted to 125 ±5% of the

white level. (Refer to Fig. 2-1)

Receive the video color bar pattern. (Audio Video Input)

Set to the AV mode. Then perform the above

adjustments 2~6.

Press the TV/VIDEO button on the remote control to set

to the CS mode. Then perform the above adjustments

2~4.

Press the VOL. UP/DOWN button on the remote control

until the color step No. becomes "65".

2-6: FOCUS

Receive the monoscope pattern.

Turn the Focus Volume fully counterclockwise once.

Adjust the Focus Volume until picture is distinct.

2-5: TINT

Receive the color bar pattern. (RF Input)

Using the remote control, set the brightness, contrast,

color and tint to normal position.

Connect the oscilloscope to TP806.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (24) on the remote control to

select "TINT".

Press the VOL. UP/DOWN button on the remote control

until the section "A" becomes as straight line.

(Refer to Fig. 2-2)

Receive the video color bar pattern. (Audio Video Input)

Set to the AV mode. Then perform the above adjustments

2~5.

Press the TV/VIDEO button on the remote control to set to

the CS mode. Then perform the above adjustments 2~4.

Press the VOL. UP/DOWN button on the remote control

until the tint step No. becomes "51".

2-9: VERTICAL LINEARITY

Receive the monoscope pattern.

Using the remote control, set the brightness, contrast,

to normal position.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (08) on the remote control to

select “V. LINEARITY”.

Press the VOL. UP/DOWN button on the remote control

until the SHIFT quantity of the OVER SCAN on upside

and downside becomes minimum.

2-8: VERTICAL POSITION

Receive the monoscope pattern.

Using the remote control, set the brightness and contrast

to normal position.

Adjust the VR401 until the horizontal line becomes fit to

the notch of the shadow mask. (Refer to Fig. 2-3)

2-7: VERTICAL SIZE

Receive the monoscope pattern.

Using the remote control, set the brightness and contrast

to normal position.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (07) on the remote control to

select “V. SIZE”.

Press the VOL. UP/DOWN button on the remote control

until the SHIFT quantity of the OVER SCAN on upside

and downside becomes 9 ±3%.

Shadow mask

Notch

horizontal line

;;

;

Fig. 2-3

Fig. 2-2

A1 A2

Fig. 2-1

125%

white 100%

ELECTRICAL ADJUSTMENTS

D-3

2-10: HORIZONTAL POSITION

Receive the monoscope pattern.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (03) on the remote control to

select "H.PHASE".

Press the VOL. UP/DOWN button on the remote

control until the SHIFT quantity of the OVER SCAN on

right and left becomes minimum.

2-15: PARABOLA/CORNER

Receive the cross hatch signal from the Pattern

Generator.

Using the remote control, set the brightness and contrast to

normal position.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (30) on the remote control to

select “PARABOLA”.

Press the VOL. UP/DOWN button on the remote control until

the right and left vertical lines are straight.

In the case the right and left vertical lines are not straight.

Please Activate the adjustment mode display of Fig. 1-1

and press the channel button (31) on the remote control to

select “CORNER”.

Press the VOL. UP/DOWN button on the remote control until

the right and left vertical lines are straight.

2-16: TRAPEZIUM

Receive the cross hatch signal from the Pattern

Generator.

Using the remote control, set the brightness and contrast

to normal position.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (32) on the remote control to

select “TRAPEZIUM”.

Press the VOL. UP/DOWN button on the remote control

until the both vertical lines of the screen become parallel.

2-17: SEPARATION 1, 2

Receive the stereo signal (L=2KHz, R=400Hz).

Connect the AC voltmeter to Audio Out Jack though

stereo filter (L=400Hz, R=2KHz).

Activate the adjustment mode display of

Fig. 1-1

and

press the channel button (34) on the remote control to

select “SEP1”.

Press the VOL. UP/DOWN button on the remote control

until the output of L-CH and R-CH become minimum.

Press the CH UP button once the set to “SEP2 mode.

Press the VOL. UP/DOWN button on the remote control

until the output of L-CH and R-CH become minimum.

Press the CH DOWN button once the set to “SEP1”

mode.

Repeat step 4 to step 7 several times.

The output difference of the between with Filter and

without Filter should be more than 25db for both L and R.

2-14: CONTRAST MAX

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (18) on the remote control to

select “CONT. MAX”.

Press the VOL. UP/DOWN button on the remote

control until the contrast step No. becomes “100”.

Receive a broadcast and check if the picture is normal.

Press the TV/VIDEO button on the remote control to set

to theAV mode. Then perform the above adjustments 1~3.

Press the TV/VIDEO button on the remote control to set

to the CS mode. Then perform the above adjustments

1~3.

2-13: BRIGHT CENT

Receive the monoscope pattern. (RF Input)

Using the remote control, set the brightness and contrast

to normal position.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (16) on the remote control to

select "BRI CENT".

Press the VOL. UP/DOWN button on the remote control

until the screen begin to shine.

Receive the monoscope pattern. (Audio Video Input)

Press the TV/VIDEO button on the remote control to set

to the AV mode. Then perform the above adjustments

2~4.

Press the TV/VIDEO button on the remote control to set

to the CS mode.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (16) on the remote control to

select "BRI CENT".

Press the VOL. UP/DOWN button on the remote control

until the brightness step No. becomes "90".

Receive the monoscope pattern.

Using the remote control, set the brightness and contrast

to normal position.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (06) on the remote control to

select “H. SIZE”.

Press the VOL. UP/DOWN button on the remote control

adjust the H.SIZE becomes 10 ~ 12%.

2-11: HORIZONTAL SIZE

2-12: OSD POSITION

2. Activate the adjustment mode display of Fig. 1-1.

Press the VOL. UP/DOWN button on the remote

control until the difference of A and B becomes

minimum. (Refer to Fig. 2-4)

00 OSD H 30

Fig. 2-4

ELECTRICAL ADJUSTMENTS

D-4

2-18: LEVEL

Connect the AC voltmeter to pin 6 of CP101.

Activate the adjustment mode display of Fig. 1-1 and

press the channel button (33) on the remote control to

select “LEVEL”.

Press the VOL. UP/DOWN button on the remote control

until the AC voltmeter is 85 ±2mV.

Please check if the fixed values of the each adjustment

items are set correctly referring below.

2-19: Confirmation of Fixed Value (Step No.)

FUNCTION

H.VCO

AFC GAIN

V.SHIFT

VS CORRECTION

BRI.MAX

BRI.MIN

CONT.CENT

CONT.MIN

COL.MAX

COL.MIN

SHARPNESS

CB DL

CR DL

NO.

160

ELECTRICAL ADJUSTMENTS

D-5

3. PURITY AND CONVERGENCE

ADJUSTMENTS

NOTE

Turn the unit on and let it warm up for at least 30

minutes before performing the following adjustments.

Place the CRT surface facing east or west to reduce the

terrestrial magnetism.

Turn ON the unit and demagnetize with a Degauss Coil.

3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)

Tighten the screw for the magnet. Refer to the adjusted

CRT for the position. (Refer to Fig. 3-1)

If the deflection yoke and magnet are in one body,

untighten the screw for the body.

Receive the green raster pattern from the color bar

generator.

Slide the deflection yoke until it touches the funnel side

of the CRT.

Adjust center of screen to green, with red and blue on

the sides, using the pair of purity magnets.

Switch the color bar generator from the green raster

pattern to the crosshatch pattern.

Combine red and blue of the 3 color crosshatch

pattern on the center of the screen by adjusting the pair

of 4 pole magnets.

Combine red/blue (magenta) and green by adjusting the

pair of 6 pole magnets.

Adjust the crosshatch pattern to change to white by

repeating steps 6 and 7.

3-2: PURITY

NOTE

Adjust after performing adjustments in section 3-1.

Receive the green raster pattern from color bar generator.

Adjust the pair of purity magnets to center the color on

the screen.

Adjust the pair of purity magnets so the color at the ends

are equally wide.

Move the deflection yoke backward (to neck side)

slowly, and stop it at the position when the whole screen

is green.

Confirm red and blue color.

Adjust the slant of the deflection yoke while watching the

screen, then tighten the fixing screw.

DEFLECTION YOKE

DEFLECTION YOKE SCREW

MAGNET SCREW

PURITY MAGNETS

6 POLE MAGNETS

4 POLE MAGNETS

Fig. 3-1

3-3: STATIC CONVERGENCE

NOTE

Adjust after performing adjustments in section 3-2.

Receive the crosshatch pattern from the color bar

generator.

Combine red and blue of the 3 color crosshatch

pattern on the center of the screen by adjusting the pair

of 4 pole magnets.

Combine red/blue (magenta) and green by adjusting the

pair of 6 pole magnets.

3-4: DYNAMIC CONVERGENCE

NOTE

Adjust after performing adjustments in section 3-3.

Adjust the differences around the screen by moving the

deflection yoke upward/downward and right/left.

(Refer to Fig. 3-2-a)

Insert three wedges between the deflection yoke and

CRT funnel to fix the deflection yoke.

(Refer to Fig. 3-2-b)

R G B

UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT

Fig. 3-2-a

WEDGE WEDGE

WEDGE

WEDGE POSITION

Fig. 3-2-b

ELECTRICAL ADJUSTMENTS

4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)

D-6

W003

CP502

TP003

VR502

CP101

CP801A

J704 J702

CP1001

OS101

CP851A

VR401

J701J703J708

SPEAKER

CRT

FB401

TU001

CP501

AC IN

CD501

CRT

CP803

CP804

TP806

TP804

R808

R804

CP852

CP851B CP802B CP801B

J801

CRT PCB

MAIN PCB

CD802

CD851

CP401

POWER PCB

CP802A

CD801

CP701

STEREO JACK PCB

CD701

J751J752

J753

CD1002CD1003

CD1001

J1002

CRT

CD803

CD852

CRT

AUDIO SW(R) IC

IC701 MM1501XNRE

MICON

IC101 OEC7090B

CHROMA IC

IC601 M61283FP R70T

VIDEO SW(Y) IC

IC1502 MM1501XNRE

VIDEO SW(C) IC

IC1503 MM1501XNRE

SOUND DECORDER IC

IC902 AN5829S-E1V

FRONT-AUDIO R

J751 FRONT-AUDIO L

J752

AUDIO SW(L) IC

IC702 MM1501XNRE

FRONT -VIDEO

J753

LINE1(REAR)

J701

S-JACK

J702

A/V OUT

J708

HEADPHONE_JACK

J1002

SPEAKER

SP1001

BLOCK DIAGRAM

VIDEO LINE OUT

Y IN(Y/C)

CVBS1

C IN(Y/C)

CVBS2

CVBS3

CVBS4

Y IN(YUV)

44 U IN(YUN) X101

8MHz

D109

OS101

R IN

VOL UP

VOL DOWN

CH DOWN

B IN 21

35 GREEN G

36 BLUE B

J801

G IN 22

34 RED R

40 V IN(YUV)

POWER

V OUT

H OUT

FAST BLK 24

V-OUT IC

IC401 LA78041

CRT

V801

B OUT

G OUT

R OUT

33 BLANK

Q803, Q812

BLUE AMP Q802, Q811

GREEN AMP

Q801, Q810

RED AMP

FB401

Q405

Q402 H.OUT

H.DRIVE

COMB FILTER IC

IC1501 LA76605M-TLM-E

Y OUT

C OUT

Y IN

Vin1

Vin2

V.OUT

6Vin1

Vin2

V.OUT

LINE2(REAR)

J703

YUV_IN(REAR)

J704

4 2

Vin1

Vin2 V.OUT

Vin1

Vin2

V.OUT

30 19

TONE CONTROL IC

IC302

AN5891SA-E1V

16 20

BBE IC

IC301

NJM2150AM (TE1)

14 2

512

SOUND AMP IC

IC1001

AN17808B

Q901

BUFFER

Q902

BUFFER

TU001

27 SCL

26 SDA

5MEMORY IC

IC199

BR24L16FJ-WE2

SCL

SDA

30 SCL1

31 SDA1

ON_TIMER

KEY1

KEY2

REMOCON

X.IN

X.OUT

CH UP

X602

3.97545MHz

XTAL 3.58

DELAYDE Y OUT

Q610

SVM

Q613

SVM OFF

Q852, Q583

AMP

Q854

BUFFER

VM COIL

Q855 ~ Q859

Q603, Q605, Q614

AMP

SWITCHING

SHV

SPEAKER

SP1002

E-1 E-2

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