Zenith C30W46 User manual

Brand: Zenith

Model: C30W46

Category: CRT TVs

Type: User manual

SERVICE MANUAL

Product Type: Consumer Flat Screen TV

Chassis: MC-021B

Manual Series:

Manual Part #:

Model Line:

Product Year: 2004

C30W46

Model Series:

CONTENTS

Description of Controls .................................................5

Specifications ..............................................................8

Adjustment Instructions ................................................9

Diagrams ...................................................................26

Parts List ...................................................................29

Schematics....................................................................

Published Oct. 2003

by Technical Publications

LG Electronics USA, Inc.

201 James Record Road,

Huntsville, Alabama 35824-1513

Printed in Korea

http//www.zenithservice.com

- 2 -

IMPORTANT SAFETY NOTICE

This manual was prepared for use only by properly trained audio-visual service

technicians.

When servicing this product, under no circumstances should the original design

be modified or altered without permission from Zenith Electronics Corporation.

All components should be replaced only with types identical to those in the

original circuit and their physical location, wiring and lead dress must conform

to original layout upon completion of repairs.

Special components are also used to prevent x-radiation, shock and fire hazard.

These components are indicated by the letter “x” included in their component

designators and are required to maintain safe performance. No deviations are

allowed without prior approval by Zenith Electronics Corporation.

Circuit diagrams may occasionally differ from the actual circuit used. This way,

implementation of the latest safety and performance improvement changes into

the set is not delayed until the new service literature is printed.

CAUTION: Do not attempt to modify this product in any way.

Never perform customized installations without manufacturer’s

approval.

Unauthorized modifications will not only void the warranty, but may

lead to property damage or user injury.

Service work should be performed only after you are thoroughly familiar with

these safety checks and servicing guidelines.

GRAPHIC SYMBOLS

The exclamation point within an equilateral triangle is intended to

alert the service personnel to important safety information in the

service literature.

The lightning flash with arrowhead symbol within an equilateral

triangle is intended to alert the service personnel to the presence

of noninsulated “dangerous voltage” that may be of sufficient

magnitude to constitute a risk of electric shock.

The pictorial representation of a fuse and its rating within an

equilateral triangle is intended to convey to the service personnel

the following fuse replacement caution notice:

CAUTION: FOR CONTINUED PROTECTION AGAINST RISK

OF FIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND

RATING AS MARKED NEAR EACH FUSE.

SERVICE INFORMATION

While servicing, use an isolation transformer for protection from AC line shock.

After the original service problem has been corrected, make a check of the

following:

FIRE AND SHOCK HAZARD

1. Be sure that all components are positioned to avoid a possibility of adjacent

component shorts. This is especially important on items transported to and

from the repair shop.

2. Verify that all protective devices such as insulators, barriers, covers, shields,

strain reliefs, power supply cords, and other hardware have been reinstalled

per the original design. Be sure that the safety purpose of the polarized line

plug has not been defeated.

3. Soldering must be inspected to discover possible cold solder joints, solder

splashes, or sharp solder points. Be certain to remove all loose foreign particles.

4. Check for physical evidence of damage or deterioration to parts and

components, for frayed leads or damaged insulation (including the AC cord),

and replace if necessary.

5. No lead or component should touch a receiving tube or a resistor rated at 1

watt or more. Lead tension around protruding metal surfaces must be avoided.

6. After reassembly of the set, always perform an AC leakage test on all

exposed metallic parts of the cabinet (the channel selector knobs, antenna

terminals, handle and screws) to be sure that set is safe to operate without

danger of electrical shock. DO NOT USE A LINE ISOLATION

TRANSFORMER DURING THIS TEST. Use an AC voltmeter having 5000

ohms per volt or more sensitivity in the following manner: Connect a 1500

ohm, 10 watt resistor, paralleled by a .15 mfd 150V AC type capacitor

between a known good earth ground water pipe, conduit, etc.) and the

exposed metallic parts, one at a time.

Measure the AC voltage across the combination of 1500 ohm resistor and

.15 mfd capacitor. Reverse the AC plug by using a non-polarized adaptor

and repeat AC voltage measurements for each exposed metallic part.

Voltage measured must not exceed 0.75 volts RMS. This corresponds to 0.5

milliamp AC. Any value exceeding this limit constitutes a potential shock

hazard and must be corrected immediately.

X-RADIATION

1. Be sure procedures and instructions to all service personnel cover the

subject of x-radiation. The only potential source of x-rays in current TV

receivers is the picture tube. However, this tube does not emit x-rays when

the HV is at the factory-specified level. The proper value is given in the

applicable schematic. Operation at higher voltages may cause a failure of

the picture tube or high-voltage supply and, under certain circumstances,

may produce radiation in excess of desirable levels.

2. Only factory-specified CRT anode connectors must be used.

3. It is essential that the service personnel have available an accurate and

reliable high-voltage meter.

4. When the high-voltage circuitry is operating properly, there is no possibility of

an x-radiation problem. Every time a color chassis is serviced, the brightness

should be run up and down while monitoring the high voltage with a meter, to

be certain that the high voltage does not exceed the specified value and that

it is regulating correctly.

5. When troubleshooting and making test measurements in a product with a

problem of excessively high voltage, avoid being unnecessarily close to the

picture tube and the high voltage power supply. Do not operate the product

longer than necessary to locate the cause of excessive voltage.

6. Refer to HV, B+, and shutdown adjustment procedures described in the

appropriate schematics and diagrams (where used).

IMPLOSION

1. All direct view picture tubes are equipped with an integral implosion

protection system; take care to avoid damage during installation.

2. Use only the recommended factory replacement tubes.

A.C. Voltmeter

0.15uF

1500 OHM

10 WATT

Place this probe

on each exposed

metal part.

Good Earth Ground

such as the Water

Pipe, Conduit, etc.

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

X-RADIATION

To prevent possible exposure to radiation caused by excessive CRT Anode

voltage, the High Voltage Shutdown circuit senses the level of flyback pulse

from “Flyback Transformer” representative of the actual high voltage on the

CRT anode. When this level exceeds a predetermined voltage, the circuit shuts

down the horizontal drive, preventing further generation of anode voltage. In

this condition, the horizontal drive is “latched” off. The drive will remain off until

power (via remote control or front panel) is cycled from “Off” to “On”.

CRT ANODE HIGH VOLTAGE MEASUREMENT PROCEDURE

Each screen size has its own safe operating Anode Voltage and shutdown

voltage. Critical Safety components (designated with an “X” in the component

designator) are designed to operate the CRT at a safe operating Anode voltage

and provide proper shutdown thresholds. If replacement of any of these

components are deemed necessary, it is important to use original type Zenith

replacement components.

After replacement is made, confirm proper Anode voltage using the following

procedure.

Measurement of the CRT Anode voltage must be performed using a high

impedance high voltage meter, with no visible raster on the screen, and

operating at nominal horizontal scanning frequency.

Connect a strong broadcast signal (or TV signal generator operating at

15.734kHz horizontal scanning rate) to the RF input.

After the CRT is discharged, connect a high impedance high voltage meter at

the distribution block. Turn the television “on” and confirm a good signal is

being displayed . Reduce Brightness and Contrast settings until the picture is

well extinguished.

Observe the Anode voltage meter reading and compare with the table below

for the proper CRT screen size. If the voltage reading is higher that the

maximum, verify circuit component values and proper operation.

EQUIPMENT REQUIRED

a) Video Generator.

b) HV DC meter (0 to 40 KV, high Z).

c) External variable power supply (0V to 7.5VDC @ 5Amps minimum).

TEST PROCEDURE

To verify the Shutdown Circuit is operating properly proceed with the following

procedure:

Supply +7.5V DC between R446 and R448 on the High Voltage Deflection

PCB. If there is no raster and set goes into Shutdown, then the Shutdown

Circuit is functional. If the set doesn’t go into Shutdown, then the Circuit is

defective.

TIPS ON PROPER INSTALLATION

1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting

shelf space over, or close to, a heat duct, or in the path of heated air flow.

2. Avoid conditions of high humidity such as: outdoor patio installations where

dew is a factor, near steam radiators where steam leakage is a factor, etc.

3. Avoid placement where draperies may obstruct venting. The customer

should also avoid the use of decorative scarves or other coverings that

might obstruct ventilation.

4. Wall-and shelf-mounted installations using a commercial mounting kit must

follow the factory-approved mounting instructions. A product mounted to a

shelf or platform must retain its original feet(or the equivalent thickness in

spacers) to provide adequate air flow across the bottom. Bolts or screws

used for fasteners must not touch any parts or wiring. Perform leakage tests

on customized installations.

5. Caution customers against mounting a product on a sloping shelf or in a

tilted position, unless the receiver is properly secured.

6. A product on a roll-about cart should be stable in its mounting to the cart.

Caution the customer on the hazards or trying to roll a cart with small

casters across thresholds or deep pile carpets.

7. Caution customers against using a cart or stand that has not been listed by

Underwriters Laboratories, Inc. for use with its specific model of television

receiver or generically approved for use with TVs9 of the same or larger

screen size.

8. Caution customers against using extension cords. Explain that a forest of

extensions, sprouting from a single outlet, can lead to disastrous

consequences to home and family.

- 3 -

SERVICING GUIDELINES FOR X-RADIATION PROTECTION

SCREEN

SIZE

128.5±2% 30 31.5

B+ VDC

(0 BEAM)

COMPONENT LEVEL REPAIR

HV NOM

HV MAX

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS

- 4 -

DESCRIPTION OF CONTROLS...........................................5

SPECIFICATIONS.................................................................8

ADJUSTMENT INSTRUCTION.............................................9

FEATURE OF MICOM FUNCTION.....................................13

TROUBLESHOOTING ........................................................17

PRINTED CIRCUIT BOARDS.............................................21

BLOCK DIAGRAM...............................................................26

EXPLODED VIEW...............................................................28

EXPLODED VIEW PARTS LIST.........................................29

REPLACEMENT PARTS LIST............................................30

SCHEMATIC DIAGRAM..........................................................

TABLE OF CONTENTS

- 5 -

123

456

scan

memory/erase

power

caption tv/video

pip/dw arc

multimedia audio

video

avl

fcr

menu mute

enter

vol -

ch +

ch -

power stop

play

rec

rew

swap

pip menu

still

ch.search

position ch+

ch-

flashback

sleep

vol +

mts

1. POWER (or ON/OFF)

Refer to "Turning the TV on/off".

2. CAPTION

Selects CAPTIONS:

On, EZ Mute, or Off.

3. MULTIMEDIA

Selects COMPONENT mode.

4. VIDEO

Selects factory preset picture settings: Day Light, Clear,

Optimum, Soft, or User.

5. FCR ( Favorite Channel Review )

Selects favorite channels.

Refer to "Favorite channel memory".

6. MENU

Displays on-screen menus.

7. CHANNEL UP/DOWN

• Selects the desired channel.

• Selects the desired menu option when menu is

displayed on the screen.

VOLUME UP/DOWN

• Increase or decrease sound level.

• Enters or adjusts the selected menu options when

menu is displayed on the screen.

ENTER (

)

• To memorize the adjusted menu.

• To recall the current TV mode (by remote control only).

8. NUMBER BUTTONS

Direct channel selection.

9. SCAN

To search and memorize channels with EZ Scan.

10.VCR BUTTONS

Control some video cassette recorders.

11.SLEEP

Sets a TV turn-off time.

12.FLASHBK

Returns to the previous channel.

DESCRIPTION OF CONTROLS

- 6 -

1 2 3

4 5 6

7 8

scan

memory/erase

power

caption tv/video

pip/dw arc

multimedia audio

video

avl

fcr

menu mute

enter

vol -

ch +

ch -

power stop

play

rec

rew

swap

pip menu

still

ch.search

position ch+

ch-

flashback

sleep

vol +

mts

13.TV/VIDEO

Selects TV, VIDEO, or COMPONENT mode.

14.ARC

Selects 4:3, 16:9 or Zoom picture formats.

15.AUDIO (Not available using earphones).

Selects the sound appropriate for the program's

character;

Flat, Music, Movie, Sports or User.

16. AVL (Auto Volume Leveler)

Maintains an equal volume level for each channel.

17.MTS

Selects MTS sound:

Mono, Stereo, or SAP.

18.MUTE

Press to remove sound. Press again to restore sound.

19.MEMORY/ERASE

To memorize or erase a channel.

20.PIP (Picture-in-Picture)

PIP/DW

Selects the PIP mode or Double window mode.

PIP MENU

To display menus for PIP mode or double window mode.

SWAP

Switches the main and sub pictures.

STILL

Freezes the sub picture in PIP mode or the currently-

viewed main picture.

POSITION

Moves the sub picture to another corner of the main

picture.

CH.SEARCH

To search one the pictures of all the programmed

channels through the sub pictures while the main picture

remains as the video input source.

CH +

Selects the sub picture channel.

DESCRIPTION OF CONTROLS

- 7 -

21.STANDBY INDICATOR (

)

Illuminates red bright when the TV is in standby mode. Refer to "Turning the TV on/off".

22.REMOTE CONTROL SENSOR

This is a simplified representation of the front panel.

on/off

tv/video menu vol ch

22 13 6 7

DESCRIPTION OF CONTROLS

- 8 -

Model C30W46

Power requirements AC 120 V

Television system NTSC

Television channels VHF : 2 ~ 13, UHF : 14 ~ 69

Cable : 01 ~ 125

Power consumption See the back of the TV

External antenna impedance 75 Ω

Audio output 7W + 7W

SPECIFICATIONS

- 9 -

ADJUSTMENT INSTRUCTIONS

1. Application Object

These instructions are applied to MC-021B chassis.

2. Notes

(1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation

transformer will help protect test instrument.

(2) Adjustment must be done in the correct order.

(3) The adjustment must be performed in the circumstance of

25±5°C of temperature and 65±10% of relative humidity if

there is no specific designation.

(4) The input voltage of the receiver must keep 120V±10%,

50/60Hz in adjusting.

(5) The receiver must be operated for about 15 minutes prior

to the adjustment. But adjusting on the board can be done

in jig state right away.

(6) Signal : The standard color signal is approved in

65±1dBµV.

The standard color signal means digital pattern signal.

3. Screen voltage Adjustment

3.1 Preliminary steps

(1) Turn the power supply of the set on.

(2) The set must be operated for about 15 minutes prior to the

adjustment.

3.2 Adjustment

(1) Adjust in the condition of no RF signal.

(2) Press “ADJ” or “SVC” button on the remote control to make

one horizontal line.

(3) Turn the Screen volume not to see one horizontal line and

turn oppositely until it starts to display.

4. Purity and Convergence Adjustment

4.1 Purity Adjustment

(1) Preliminary steps

1. Receive Red Raster Pattern.

2. Degauss CPT and Cabinet with a degaussing coil

(2) Horizontal Line Adjustment

1. Pre-adjust Static Convergence(STC) with 4-pole & 6-

pole magnet.

2. Check if the beam lands at mask hole by setting two 2-

Pole magnets in opposite direction repectively.

3. If not, adjust 2-Pole magnet so the beam lands at mask

hole accurately.

(3) Purity Adjustment

1. Adhere DY closely to CRT.

2. Receive Red Pattern and adjust the 2-Pole magnet so

Red Color Bar as to locate center and make the portion

of Green color and Blue color same. <Fig. 1>

(Be careful of HALO if two 2-Pole magnet are open over

30 degree)

3. Make a full screen Red by pulling DY back slowly. <Fig.

(When adhering DY, use the electric driver of which

turning force is lower than 22Lb)

4.2 Convergence Adjustment

(1) Test equipment

1. Degaussing Coil

(2) Preliminary steps

1. Heat run over 15 minutes before adjustment.

2. Degauss CPT and Cabinet with degaussing coil.

3. Rececive Cross Hatch Pattern.

4. Adjust Contrast and Brightness for easy observation.

(3) Static Convergence (STC) Adjustment

1. Receive Crosshatch Pattern.

2. Adjust Focus with focus volume.

3. Open two 4-Pole magnets until vertical Red and Blue

lines are unified.

4. Rotate the 4-Pole magnets keeping the angle between

two 4-Pole magnets until horizontal Red and Blue lines

are unified.

5. Open two 6-Pole magnets until vertical Red and Blue

lines are unified.

6. Rotate the 6-Pole magnets keeping the angle between

two 6-Pole magnets until horizontal Red and Blue lines

are unified.

G R BG R B

RG R B

<Fig. 1>

<Fig. 2>

Location

L,R,X,Y

A,B,D,E

3,6,9,12

2,4,8,10

Convergence

Colors : R/B, R/G, B/G <Unit : mm>

* Each indicator stands

for the 30ø circle.

Adjust after warming

the Braun tube up for

15 minutes.

Adjustment position is

the center of the circle

above.

The specification of

horizontal and vertical

direction is equal

10 12 2

A X B

9 L C R 3

D Y E

8 6 4

ConditionSpecificationContent

Colors

29"

0/0.8

0.8

1.0

1.4

- 10 -

ADJUSTMENT INSTRUCTIONS

(4) Dynamic Convergence (DYC) Adjustment

1. Vertical Line Adjustment : Adjust by moving DY right and

left.

2. Horizontal Line Adjustment : Adjust by moving DY up

and down.

5. White Balance Adjustment

Do screen adjustment first.

For manual adjustment, refer to the following procedure.

5.1 Test Equipment

(1) Automatic White Balance meter(Can generate Low/High

light pattern)

(2) White Balance meter(CRT color Analyzer, CA-100)

(3) SVC Remote control for adjustment

5.2 Preliminary steps

(1) Tune the TV set to receive an 100% white pattern.

(2) Do screen adjustment first.

5.3 Adjustment

(1) White Balance should be adjusted with the SVC remote

control.

(2) Enter into adjustment mode by “INSTART” button and

select RGB W/B ADJ mode with CHD, E, VOLF, G.

(3) Adjust the item with CHD, E.

(4) Adjust the data with VOLF, G.

(5) Adjustment Procedure

1. Adjust “CONTRAST” and “BRIGHTNESS” so the bright

level is 35Ft_L.

2. Select GD(G-DRIVE) and adjust Y coordinate in High

Light and select BD(B-DRIVE) and adjust X coordinate

so the color coordinates in High light as to be the values

in Table below.

3. Adjust “CONTRAST” and “BRIGHTNESS” so the bright

level is 4.5Ft_L.

4. Select GC(G-CUTOFF) and adjust Y coordinate in Low

Light and select BC(B-CUTOFF) and adjust X

coordinate so the color coordinates in Low light are as

the values in Table below.

5. Repeat 1 ~ 4 until the color coordinates in High and Low

color satisfies the Table.

6. Check the adjusted color coordinates with the white

balance meter.

6. Focus Adjustment

Adjust after operating the receiver for 15 minuets.

6.1 Preliminary steps

(1) Receive Digital Pattern.

(2) Set Picture condition to “CLEAR”.

CONTRAST : 100

BRIGHTNESS : 50

CLEAR TINT : 0

COLOR : 50

SHARPNESS : 50

6.2 Adjustment 1(34”/32”/29” Double Focus Model)

(1) Adjust the lower Focus volume of FBT for the best focus of

vertical line B.

(2) Adjust the upper Focus volume of FBT for the best focus of

area A.

(3) Repeat above step (1) and (2) for the best overall focus.

6.3 Adjustment 2(29” Single Focus Model)

Adjust the upper Focus volume for the best focus of horizontal

line A,vertical line B.

7. Sub-Brightness Adjustment

Do white balance adjustment first.

7.1 Preliminary steps

(1) Select “SUB BRIGHT” mode pressing “ADJ” button on the

SVC Remote control.

(In using “INSTANT” button, select SUB PICTURE

Mode(2150 EX1 ADJ) and then select Sub-BR(SUB-

BRIGHTNESS) adjustment item.)

(2) At this moment the signal is automatically received and

selected. And the picture state is changed to SUB Bright

adjustment.

CONTRAST : 27

BRIGHTNESS : 52

SUB Bright TINT : 0

picture state COLOR : 0

SHARPNESS : 71

DRP/FI-NE : OFF

7.2 Adjustment

Adjust until number “2” in <Fig. 4> almost dispears on Gray

Scale of MONO Scope signal by VOLF, G.

Color temperature

X Coordinate

Y Coordinate

288!8

282!8

10000 K

RGB

W/B

R-DRIV(0-63)

G-DRIV(0-63)

B-DRIV(0-63)

R-CUT0(0-63)

G-CUT0(0-63)

B-CUT0(0-63)

Fix.

High Light adj.

Low Light adj.

Menu Initial Data Remark

<Fig. 3>

- 11 -

ADJUSTMENT INSTRUCTIONS

8. Sub-Tint Adjustment

Sub-Tint adjustment doesn’t need to be adjusted in Line

process but it is display in adjustment mode to correspond

with SVC.

9. Deflection Adjustment

9.1 Preliminary Steps

(1) Set the Deflection data with the SVC Remote control.

(2) Enter into Deflection adjustment mode by pressing the

INSTART button and select CXA2150 DEF adjustment

mode with CHD, E button.

(3) Use CHD, E button to change the adjustment item.

(4) Use VOLF, G button to change the Data.

9.2 TV mode Adjustment

(1) Vertical Position Adjustment

Select VP 0(V-POSITION)and adjust until the mechanical

center point and the center of screen unite.

(2) Vertical Size Adjustment

Select VP 1(V-SIZE) and adjust until the smaller inscribed

circle of Digital Pattern coincides with the outer frame of

screen as figure below.

And select VP 2(UP-VLIN) or VP 3 (LO-VLIN) and adjust

until the larger inscribed circle of Digital Pattern coincides

with the outer frame of screen as figure below.

(3) Horizontal Position Adjsutment

Select VP 4(H-POSITION) and adjust until left and right

screen are symmetrically equal.

(4) Horizontal Size Adjsutment

Select VP 5(H-SIZE) and adjust until left and right of Digital

Pattern occupy two and half or three blanks.

(5) Pincushion Adjustment

1. Select VP 6(PIN-PH) and adjust until screen makes

perfect rectangle.

2. Select VP 7(AFC-ANGLE) and adjust the vertical slope.

3. Select VP 8(AFC-BOW) and adjust the left and right

crooked line on upper and lower side.

4. Select VP 9(PIN-AMP) and adjust until Pincushion

distortion disspears on left and right side.

5. Select VP 10, 11(UP-CORNERPIN, LO-CORNERPIN)

and adjust until pincushion distortion dispears on upper

and lower side of screen, respectively.

9.3 1081I Mode Deflection Adjustment

This adjustment should be adjusted manually by receiving

1080I signal transmitted in SET TOP BOX.

Adjust after finishing the 480I/P Mode deflection adjustment.

(1) Preliminary Steps

1) Sanction Y, Pb, Pr input of SET TOP BOX to component

2 input termianl.

2) Move the channel of SET TOP BOX and receive digital

pattern.

3) Press the INSTART Key to enter into adjustment mode

and select CXA2150 adjustment mode with CH D, E

Key.

4) Use CH D, E Key on the R/C to select adjustment

item.

5) Use VOL F, G Key on the R/C for increase/decrease

of data.

[ 1080I output signal is 16:9 screen size basically but for the

convenience of adjustment, it is automatically changed to

4:3 mode while entering adjustment mode.

(2) 1080I Mode Adjustment

In the same way as TV mode deflection adjustment.

1) Vertical Position Adjustment

Select VP 0(V-POSITION) and adjust until the

mechanical center point and the center of screen unite.

2) Vertical Size Adjustment

Select VP 1(V-SIZE) and adjust until the inscribed circle

coincides with the outermost area of the screen.

3) Horizontal Position Adjsutment

Select VP 4(H-POSITION) and adjust until left and right

screen are symmetrically equal.

4) Horizontal Size Adjsutment

Select VP 5(H-SIZE) and adjust until left and right of

Digital Pattern occupy two and half or three blanks.

5) Pincushion Adjustment

1. Select VP 6(PIN-PH) and adjust until screen makes a

perfect rectangle.

<Fig. 5>

0 1 2 3 4 . . . 9

<Fig. 4>

- 12 -

ADJUSTMENT INSTRUCTIONS

2. Select VP 7(AFC-ANGLE) and adjust the vertical slope.

3. Select VP 8(AFC-BOW) and adjust the left and right

crooked line on upper and lower side.

4. Select VP 9(PIN-AMP) and adjust until Pincushion

distortion disspears on left and right side.

5. Select VP 10, 11(UP-CORNERPIN, LO-CORNERPIN)

and adjust until pincushion distortion dispears on upper

and lower side of screen, respectively.

10. D/W Deflection Adjustment

Unnecesary

11. OSD position Adjustment

This adjustment should be performed only when there is

problem about the horizontal position of OSD.

(1) Enter into OSD adjustment mode by “INSTART” button on

the SVC Remote control and select OSD-Position mode

with CHD, E button. Adjust OSD horizontal position by

VOLF, G button. (OSD POSITION Initial data : 9)

(2) In selecting OSD Position adjustment mode OSD bar is

displayed on the screen as <Fig. 6> Adjust with VOLF, G

button until left and right of the bar is symmetrized.

<Fig. 6>

12. IIC BUS Adjustment Data Table(CXA2150 DEF)

Sub Adjustment Initial Data

SUB-TINT

SUB-BRIGHT

SUB-CONTRAST

SUB TINT

-24 ~ 39

-23 ~ 40

SUB BRIGHT

0 ~ 63

SUB CONTRAST

0 ~ 15

V-POSITION

V-SIZE

UP-VLIN

LO-VLIN

H-POSITION

H-SIZE

PIN-PH

AFC-ANGLE

AFC-BOW

PIN-AMP

UP-CORNER PIN

LO-CORNER PIN

V-VLIN

S-CORR

V-SCRO

Need to Adjust(USA/Canada)

Need to Adjust(Latin America/Philippines)

No need to Adjust

No need to Adjust(USA/Canada)

No need to Adjust(Latin America/Philippines)

0 ~ 63

0 ~ 15

0 ~ 63

0 ~ 15

0 ~ 63

Vertical Position

Vertical Size

Upper Linearity

Lower Linearity

Horizontal Position

Horizontal Size

Trapezoidal Corr.

Vertical Slope Corr.

Vertical Skew Corr.

Pincushion

Upper Corner Pin

Lower Corner Pin

Vertical Linearity

Item OSD

Adjustment

Item

Range

Item

OSD

Adjustment Item Range Initial Data Remark

RU-29FC32/51

GOMEZ,SINGLE

RP-29FC40P

DOUBLE/SINGLE

32” WIDE 34” FLAT

480I/P 1080I 480I/P 1080I 480I/P 1080I 480I/P 1080I

- 13 -

Feature of MICOM Function

1. Peripheral H/W

2. Feature of system

(1) 181 Channel F.S Tunning system, AFT Fuction, Finetune

data memory(all the channels)

(2) Direct selecting channel with number buttons, Selecting

memorized channel with up/down button

(3) AUTO Program, CH Memory/ERASE, Favorite Channel

(4) Option : PIP(1/16,1/9,1/4, POSITION, INPUT, SWAP,

CH+/-, STILL-Main/PIP)

(5) MTS, DASP, Woofer, 5 Band Equalizer Function

(0.1/0.4/1/4/10KHz)

(6) APC(MAGIC EYE(Option)/CLEAR/OPTIMUM/SOFT

/USER),DRP(Option)

(7) DTV(DVD, D-TV)

(8) Caption(English)

(9) HDTV Ready

IC Name Usage

CXA2150AQ Deflection & Picture

CXA2069 A/V Switch

VSP9427 PIP, Progressive Processor

PIP Processor, Y/U/V Decoder

MSP3440G Sound Processor

LGDT1000B H-Filter-¥–(Option)

X24C16 EEPROM

CXA2151Q Video/Sync Selector

[ Local Key Arrangement : TV/AV $ MENU $ OK $ VOL- $ VOL+ $ CH- $ CH+ $ POWER

3. Pin Layout

¡ Hsync

¡ Vsync

¡ P40/AD4

¡ P41/INT2

¡ P42/TIM2

¡ P43/TIM3

¡ŒP24/AD3 ¤ˇ

¡ŒP25/AD2 ¤ˇ

¡ŒP26/AD1 ¤ˇ

¡ŒP27/AD5 ¤ˇ

¡ŒP00/PWM4 ¤

¡ P50/PWM7 ¤

¡ŒP01/PWM5 ¤

¡ P47 ¤

¡ŒP02/PWM6 ¤

¡ P51 ¤

¡ŒP17/Sin/R0 ¤ˇ

¡ P32 ¤

¡ P44/INT1

¡ P56 ¤

¡ŒP45/Sout

¡ P57

¡ŒP46/Sclk

¡ AVcc

¡ HLF/AD6

¡ P72

¡ Vhold/P71

¡ Cvin/P70

¡ CNVss

¡ Xin

¡ Xout

¡ Vss

¤ˇ P52/R ¡

¤ˇ P53/G ¡

¤ˇ P54/B ¡

¤ˇ P55/Out1 ¡

¤ P04/PWM0 ¡Œ

¤ P05/PWM1 ¡Œ

P60 ¡

¤ P06/PWM2 ¡Œ

P61 ¡

¤ P07/PWM3 ¡Œ

P62 ¡

¤ˇ P20 ¡Œ

¤ˇ P21 ¡Œ

¤ˇ P22 ¡Œ

¤ˇ P23 ¡Œ

¤ˇ P10/Out2 ¡Œ

¤ P65 ¡

P11/SCL1 ¡Œ

¤ P66 ¡

P12/SCL2 ¡Œ

¤ P67 ¡

P13/SDA1 ¡Œ

P14/SDA2 ¡Œ

¤ˇ P15 ¡Œ

¤ˇ P16/INT3 ¡Œ

¤ˇ P03/PWM7 ¡Œ

¤ˇ P30/AD7 ¡Œ

¤ˇ P31/AD8 ¡Œ

RESET ¡

P64/OSC2/Xcout ¡Œ

P63/OSC1/Xcin ¡

Vcc ¡

Hsync ->

Vsync ->

Eye ->

IR ->

IC Power Detection ->

N.C

AGC ->

Booster Control <-

N.C

Key In2 ->

Key In1 ->

Key Out0 <-

Key In0 ->

N.C

Key In3 <-

Key Out1 <-

N.C

Vcc ->

Filter ->

RVCO ->

Hold ->

CVBS In ->

Vss ->

8MHz In ->

8MHz Out <-

Vss ->

-> OSD R

-> OSD G

-> OSD B

-> Ys(Out1)

N.C

SCREEN

N.C

-> TILT2

-> TILT1

-> PIP_Vol(PWM)

N.C

<- Abnormal

N.C

-> B-Power

-> Degausing

-> Ym(Out2)

-> N.C

-> SCL1(EEPROM)

N.C

-> SCL2(Normal)

-> Tx(Easy Out)

<-> SDA1(EEPROM)

<-> SDA2(Normal)

<- IIC Request

<- Rx(Easy In)

-> S-Mute

-> F0/F1(FREQ.S/W)

-> IIC Reset

<- Reset

-> 27MHz Out

<- 27MHz In

<- 5V

- 14 -

Feature of MICOM Function

4. Description of PIN

No. Symbol Functional Description

Eye in

IR(Remocon)

B_ICVoltage

N.C

AGC

Booster Control

N.C

Key-In2

Key-In1

Key_Out0

Key_In0

N.C

Key-In3

Key_Out1

N.C

AVcc

Filter

RVCO

¤ˇ

O Horizontal Sync. Signal Input

O Input Polarity : Active “L“

O Vertical Sync. Signal Input

O Input Polarity : Active “L“

O Inputs C Data of Chroma picture (Data is input by A/D)

O For remote control input(uses external interupt)

O Detects Power of IC(outputs initial data after resetting IC in Low)

O Inputs the century of input image signal

O Booster of Main Tuner On/Off output

O Local Key Input Terminal

O Local Key Output Terminal

O Local Key Input Terminal

N.C

O Local Key Input Terminal

O Local Key Output Terminal

N.C

O Analog Power

O Filter Terminal for CAPTION

- 15 -

Feature of MICOM Function

No. Symbol Functional Description

V-Hold

CVBS In

CNVss

X In

X Out

Vss

Vcc

OSC1

OSC2

RESET

IIC-Reset

F0/F1(FREQ. S/W)

S-Mute

Rx(Easy In)

IIC Request

SDA2

SDA1

Tx(Easy Out)

SCL2

N.C

SCL1

N.C

Degaussing

Power

N.C

ABN

N.C

¤ˇ

O Hold Terminal for CAPTION

O CAPTION CVBS In Terminal

O Analog GND

O 8MHz In

O 8MHz Out

O Digital GND

O Digital Power

O 27MHz In(For OSD)

O 27MHz Out(For OSD)

O Micom IC Reset

O Port to enable to reset IC related to controlling every IIC

O 480I/P at the time of signal one High, 1080I at the time of signal one Low

O Sound Mute

O Easy_Link Rx Input Terminal

O For adjusting IIC(Active Low) $ MICOM doesn’t function at all for adjusting Line

O Changed data should be read at EEPROM after adjusting Line

O IIC Data 1(For Normal IC) $ Using H/W IIC

O IIC Data 2(For adjusting IC which controlles EEPROM/SPK) $ Using H/W IIC

O Easy_Link Tx Output Terminal

O IIC Clock 1(For adjusting Normal IC) $ Uses H/W IIC

O IIC Clock 2(For adjusting IC which controlles EEPROM/SPK) $ Using H/W IIC

O For Half Tone(should correspond to CROMA IC)

O Degaussing Output Terminal

O Power On(Low Active)

O Abnormal condition of all the member nothing it watches (Low Active)

- 16 -

Feature of MICOM Function

No. Symbol Functional Description

PIP Volume(sub)

TILT 1

TILT 2

N.C

SCREEN

N.C

OSD B

OSD G

OSD R

¤ˇ

O Outputs sound data of sub picture(Using PWM )

O Indicates -/+ for degaussing(High $ +/Low $ -)

O Degaussing Output Terminal(PWM)

N.C

O Horizontal Line regulation hour High output

O Outputs Ys for OSD

O Outputs B for OSD

O Outputs G for OSD

O Outputs R for OSD

- 17 -

TROUBLE SHOOTING

- 18 -

TROUBLE SHOOTING

- 19 -

TROUBLE SHOOTING

- 20 -

TROUBLE SHOOTING

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Zenith C30W46 User manual

Brand: Zenith

Model: C30W46

Category: CRT TVs

Type: User manual

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Zenith C30W46 User manual

Zenith C30W46 User manual

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