LG 42CQ610H-UA Schematic

Internal Use Only

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LCD TV

SERVICE MANUAL

CHASSIS : LA1EZ

MODEL : 42CQ610H 42CQ610H-UA

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

Printed in KoreaP/NO : MFL67406206(1204-REV00)

CONTENTS

CONTENTS .............................................................................................. 2

PRODUCT SAFETY

SPECIFICATION

ADJUSTMENT INSTRUCTION

TROUBLESHOOTING

BLOCK DIAGRAM

EXPLODED VIEW

................................................................................. 3

....................................................................................... 4

................................................................ 6

.............................................................................13

.................................................................................. 21

.................................................................................. 22

SCHEMATIC CIRCUIT DIAGRAM

..............................................................

Only for training and service purposes

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SAFETY PRECAUTIONS

IMPORTANT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Exploded View. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks.

It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1 W), keep the resistor 10 mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock.

Leakage Current Cold Check(Antenna Cold Check)

With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1 M When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer.

Ω and 5.2 MΩ.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet.

Do not use a line Isolation Transformer during this check. Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to

0.5 mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

Only for training and service purposes

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SPECIFICATION

NOTE : Specifications and others are subject to change without notice for improvement

1. Application range

This spec sheet is applied LCD TV with LA1EX, Y, Z chassis

2. Test condition

Each part is tested as below without special notice.

1) Temperature : 25 ºC ± 5 ºC (77 ºF ± 9 ºF), CST : 40 ºC±5 ºC

2) Relative Humidity: 65 % ± 10 %

3) Power Voltage : Standard input voltage (AC 110-240 V~, 50/60 Hz) * Standard Voltage of each products is marked by models.

4) Specification and performance of each parts are followed

each drawing and specification by part number in accordance with BOM.

5) The receiver must be operated for about 20 minutes prior to

the adjustment.

3. Test method

1) Performance: LGE TV test method followed

2) Demanded other specification

- Safety : UL, CSA, IEC specification

- EMC: FCC, ICES, IEC specification

4. General Specification

No Item Specication Remark

1 Receiving System 1) ATSC / NTSC-M 2 Available Channel 1) VHF : 02~13

2) UHF : 14~69

3) DTV : 02-69

4) CATV : 01~135

5) CADTV : 01~135

3 Input Voltage 1) AC 100 ~ 240V 50/60Hz Mark : 110V, 60Hz (N.America) 4 Market NORTH AMERICA

5 Screen Size 22 inch Wide (1920 × 1080) FHD + 60Hz 22LQ630H-UA_CMI

26 inch Wide (1366 × 768) HD + 60Hz 26LQ630H-UA_LGD 32 inch Wide (1366 × 768) HD + 60Hz 32LQ630H-UA_LGD

42 inch Wide (1920 × 1080) FHD + 60Hz 42CQ610H-UA_LGD 6 Aspect Ratio 16:9 7 Tuning System FS 8 Module M215HGE-L10 CMI 22LQ630H-UA

LC260EXN-SDA1 LGD 26LQ630H-UA

LC320EXN-SDA1 LGD 32LQ630H-UA

LC420WUE-SCA2 LGD 42CQ610H-UA 9 Operating Environment 1) Temp : 0 ~ 40 deg

2) Humidity : ~ 80 %

10 Storage Environment 1) Temp : -20 ~ 60 deg

2) Humidity : ~ 85 %

Only for training and service purposes

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5. RGB (PC)

No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed DDC

1 640*350 31.468 70.09 25.17 EGA Х 2 720*400 31.469 70.08 28.32 DOS O 3 640*480 31.469 59.94 25.17 VESA(VGA) O 4 800*600 37.879 60.31 40.00 VESA(SVGA) O 5 1024*768 48.363 60.00 65.00 VESA(XGA) O 6 1280*768 47.776 59.870 79.5 CVT(WXGA) Х 7 1360*768 47.712 60.015 85.50 VESA (WXGA) Х

6. HDMI Input

No. Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Proposed

PC DDC

DTV 1 720*480 31.47 60 27.027 SDTV 480P 2 720*480 31.47 59.94 27.00 SDTV 480P 3 1280*720 45.00 60.00 74.25 HDTV 720P 4 1280*720 44.96 59.94 74.176 HDTV 720P 5 1920*1080 33.75 60.00 74.25 HDTV 1080I 6 1920*1080 33.72 59.94 74.176 HDTV 1080I 7 1920*1080 67.500 60 148.50 HDTV 1080P 8 1920*1080 67.432 59.939 148.352 HDTV 1080P 9 1920*1080 27.000 24.000 74.25 HDTV 1080P

10 1920*1080 26.97 23.976 74.176 HDTV 1080P 11 1920*1080 33.75 30.000 74.25 HDTV 1080P 12 1920*1080 33.71 29.97 74.176 HDTV 1080P

Only for training and service purposes

- 5 -

ADJUSTMENT INSTRUCTION

1. Application Range

This spec. sheet applies to LA1EZ Chassis applied LCD TV all models manufactured in TV factory

2. Specification

(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 100~240V,

50/60Hz. (5) The receiver must be operated for about 5 minutes prior to

the adjustment when module is in the circumstance of over

15°C. In case of keeping module is in the circumstance of 0°C, it

should be placed in the circumstance of above 15°C for 2 hours

In case of keeping module is in the circumstance of below

-20°C, it should be placed in the circumstance of above 15°C for 3 hours.

(6) Adjustment equipments : Color Analyzer (CA-210 or

CA-110), SVC remote controller. (7) Push The “IN STOP KEY” – For memory initialization.

Case1 : Software version up

1) After downloading S/W by USB , TV set will reboot

automatically

2) Push “In-stop” key

3) Push “Power on” key

4) Function inspection

5) After function inspection, Push “In-stop” key. Case2 : Function check at the assembly line

1) When TV set is entering on the assembly line, Push

“In-stop” key at first.

2) Push “Power on” key for turning it on. => If you push “Power on” key, TV set will recover channel

information by itself.

3).After function inspection, Push “In-stop” key.

[Caution] When still image is displayed for a period of 20 minutes or longer (especially where W/B scale is strong. Digital pattern 13ch and/or Cross hatch pattern 09ch), there can some afterimage in the black level area

3. Adjustment items

3.1 Board Level Adjustment

(1) Adjust RGB (ADC) (2) EDID/DDC download

● Above adjustment items can be also performed in Final

Assembly if needed. Both Board-level and Final assembly adjustment items can be check using In-Start Menu (1. Adjust Check). Component 1080p and RGB-PC Adjust will be calculated by 480i adjust value.

3.2. Final assembly adjustment

(1) White Balance adjustment (2) RS-232C functionality check (3) Factory Option setting per destination (4) Shipment mode setting (In-Stop)

3.3. Etc

(1) Ship-out mode (2) Service Option Default (3) USB Download (S/W Update, Option and Service only) (4) ISP Download (Optional)

4. Automatic Adjustment

4.1. ADC Adjustment

4.1.1. Overview

▪ ADC adjustment is needed to find the optimum black level

and gain in Analog-to-Digital device and to compensate RGB deviation.

4.1.2. Equipment & Condition

(1) Protocol: RS-232C (2) Inner Pattern

- Resolution : 1080p (Inner Pattern)

- Resolution : 1024*768 RGB (Inner Pattern)

- Pattern : Horizontal 100% Color Bar Pattern

- Pattern level : 0.7±0.1 Vp-p

4.1.3. Adjustment

4.1.3.1. Adjustment method

- Using RS-232, adjust items listed in 3.1 in the other shown in “4.1.3.3”

* RS-232C Connection Method. Connection : PCBA (USB Port) -> USB to Serial Adapter (UC-232A) -> RS-232C cable -> PC(RS-232C port)

● Product name of USB to Serial Adapter is UC-232A.

=> Caution: LA1E* chassis support only UC-232A driver. ( only use this one.)

Only for training and service purposes

- 6 -

4.1.3.2. Adj. protocol

Protocol Command Set ACK Enter adj. mode aa 00 00 a 00 OK00x Source change xb 00 40

xb 00 40 Begin adj. ad 00 10 Return adj. result OKx (Case of Success)

Read adj. data (main)

ad 00 20 (sub )

ad 00 21

Conrm adj. ad 00 99 NG 03 00x (Fail)

End adj. aa 00 90 a 00 OK90x

Ref.) ADC Adj. RS232C Protocol_Ver1.0

4.1.3.3. Adj. order

▪ aa 00 00 [Enter ADC adj. mode] ▪ xb 00 60 [Change input source to RGB(1024*768)] ▪ ad 00 10 [Adjust 1024*768 RGB] ▪ ad 00 90 End adj.

Ref) ADC adj. RS232C Protocol_Ver1.0

b 00 OK40x (Adjust 1080i Comp1 ) b 00 OK60x (Adjust 1024*768 RGB)

NGx (Case of Fail) (main)

000000000000000000000000007c007b006dx (Sub)

000000070000000000000000007c00830077x

NG 03 01x (Fail) NG 03 02x (Fail) OK 03 03x (Success)

5. Manual Adjustment

5.1 ADC Adjustment

5.1.1 Overview

▪ ADC adjustment is needed to find the optimum black level

and gain in Analog-to-Digital device and to compensate RGB deviation.

5.1.3 Adjust method

5.1.3.1. ADC RGB (1) Press the In-start Key on the ADJ remote after at least 1

min of signal reception. Then, select 4.ADC Calibration. And Press OK Button on the menu “Start”. The adjustment will start automatically.

(2) If ADC RGB is successful, “ADC RGB Success” is

displayed and ADC RGB is completed. If ADC calibration is failure, “ADC RGB Fail” is displayed.

(3) If ADC calibration is failure, after rechecking ADC pattern

or condition, retry calibration

5.2. EDID/DDC Download(EDID PCM)

5.2.1. Overview

- It is a VESA regulation. A PC or a MNT will display an

optimal resolution through information sharing without any necessity of user input. It is a realization of “Plug and Play”.

5.2.2. Equipment

(1) Adjust remocon. (2) Since embedded EDID data is used, EDID download JIG,

HDMI cable and D-sub cable are not need

5.2.3. Download method

(1) Press Adj. key on the Adj. R/C. (2) Select EDID D/L menu. (3) By pressing Enter key, EDID download will begin (4) If Download is successful, OK is display, but If Download is

failure, NG is displayed. (5) If Download is failure, Re-try downloads. [Caution] : When EDID Download, must remove RGB/HDMI

Cable.

5.1.2. Equipment & Condition

(1) Adjust Remocon (2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern

Generator

- Resolution: 480i Comp1 (MSPG-925FA: model-209, pattern-65)

- Resolution : 1024*768 RGB (Inner Pattern)

- Pattern : Horizontal 100% Color Bar Pattern

- Pattern level: 0.7±0.1 Vp-p

- Image

(3) Must use standard cable

Only for training and service purposes

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5.2.4. EDID DATA

(1) 42CQ610H-UA (FHD) * HDMI1_EDID table [CHECK SUM : 3/4]

* HDMI2_EDID table [CHECK SUM : 3/F4]

5.3. White Balance Adjustment

5.3.1. Overview

5.3.1.1. W/B adj. Objective & How-it-works (1) Objective: To reduce each Panel’s W/B deviation (2) How-it-works: When R/G/B gain in the OSD is at 192, it

means the panel is at its Full Dynamic Range. In order to prevent saturation of Full Dynamic range and data, one of R/G/B is fixed at 192, and the other two is lowered to find the desired value.

(3) Adj. condition: normal temperature

- Surrounding Temperature: 25±5 ºC

- Warm-up time: About 5 Min

- Surrounding Humidity: 20% ~ 80%

5.3.2. Equipment

(1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED:

CH14)

(2) Adj. Computer(During auto adj., RS-232C protocol is

needed) (3) Adjust Remocon (4) Video Signal Generator MSPG-925F 720p/204-Gray

(Model:217, Pattern:49)

→ Only when internal pattern is not available

※ Color Analyzer Matrix should be calibrated using

CS-1000

5.3.3. Equipment connection

* Analog (RGB) EDID table [CHECK SUM : ED]

Probe

RS-232C

※

Signal Source

※If TV internal pattern is used, not needed

Color Analyzer

RS-232C

Computer

RS-232C

Pattern Generator

Only for training and service purposes

- 8 -

5.3.4. Adjustment Command (Protocol)

(1) RS-232C Command used during auto-adj

RS-232C COMMAND

CMD DATA ID

Wb 00 00 Begin White Balance adj. Wb 00 ff End White Balance adj.

(internal pattern disappears )

Ex) wb 00 00 -> Begin white balance auto-adj. wb 00 10 -> Gain adj. ja 00 ff -> Adj. data jb 00 c0 ... ... wb 00 1f -> Gain adj. complete *(wb 00 20(start), wb 00 2f(endc)) -> Off-set adj. wb 00 ff ->End white balance auto adj.

(2) Adjustment Map Applied Model : 26LQ630H -UA,

Command

Adj. item

Cool R Gain j g 00 C0 TBD

G Gain j h 00 C0 TBD B Gain j i 00 C0 TBD R Cut TBD G Cut TBD B Cut TBD

Medium R Gain j a 00 C0 TBD

G Gain j b 00 C0 TBD B Gain j c 00 C0 TBD R Cut TBD G Cut TBD B Cut TBD

Warm R Gain j d 00 C0 TBD

G Gain j e 00 C0 TBD B Gain j f 00 C0 TBD R Cut TBD G Cut TBD

(lower case ASCII)

CMD1 CMD2 MIN MAX

Explanation

Data Range

(Hex.)

(Decimal)

Default

5.3.5. Adjustment method

5.3.5.1 Auto adj. method (1) Set TV in adj. mode using POWER ONLY (P-ONLY) key (2) Zero calibrate probe then place it on the center of the

Display (3) Connect Cable(RS-232C) (4) Select mode in adj. Program and begin adj. (5) When adj. is completed (OK Sing), check adj. status of pre

mode (Cool, Medium, Warm) (6) Remove probe and RS-232C cable to complete adj.

▪ W/B Adj. must begin as start command “wb 00 00” , and

finish as end command “wb 00 ff”, and Adj. offset if need

5.3.5.2. Manual adj. method (1) Set TV in Adj. mode using POWER ON (2) Zero Calibrate the probe of Color Analyzer, then place it on

the center of LCD module within 10cm of the surface..

(3) Press ADJ key -> EZ adjust using adj. R/C -> 6. White-

Balance then press the cursor to the right (KEY►).

(When KEY(►) is pressed 204 Gray(80IRE) internal

pattern will be displayed)

(4) One of R Gain / G Gain / B Gain should be fixed at 192,

and the rest will be lowered to meet the desired value.

(5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of

color temperature.

▪ If internal pattern is not available, use RF input. In EZ Adj.

menu 6.White Balance, you can select one of 2 Test-pattern: ON, OFF. Default is inner(ON). By selecting OFF, you can adjust using RF signal in 204 Gray pattern.

▪ Adj. condition and cautionary items

(1) Lighting condition in surrounding area Surrounding lighting should be lower 10 lux. Try to isolate

adj. area into dark surrounding.

(2) Probe location : Color Analyzer (CA-210) probe should be

within 10cm and perpendicular of the module surface (80°~ 100°)

(3) Aging time

- After Aging Start, Keep the Power ON status during 5

Minutes.

- In case of LCD, Back-light on should be checked using no

signal or Full-white pattern.

Only for training and service purposes

- 9 -

5.3.6. Reference (White Balance Adj. coordinate and color temperature)

▪ Luminance: 216 Gray ▪ Standard color coordinate and temperature using CS-1000

Mode

Cool 0.269 0.273 13000K 0.0000

Medium 0.285 0.293 9300K 0.0000

Warm 0.313 0.329 6500K 0.0000

▪ S ta ndard color coord in ate a nd t em per at ure u sing

CA-210(CH 9)

Mode

Cool 0.269±0.002 0.273±0.002 13000K 0.0000

Medium 0.285±0.002 0.293±0.002 9300K 0.0000

Warm 0.313±0.002 0.329±0.002 6500K 0.0000

■ In case of LGD Edge LED module, the color coordinates is

changing by aging, so you have to use the below table.

EDGE LED (26/32LQ630H-UA) – LGD Only

Coordinate

X Y

Coordinate

X Y

Temp △uv

5.4 HDCP

(High-Bandwidth Digital Contents

Protection) SETTING

6. GND and HI-POT Test

6.1. GND & HI-POT auto-check preparation

(1) Check the POWER CABLE and SIGNAL CABE insertion

condition

6.2. GND & HI-POT auto-check

(1) Pallet moves in the station. (POWER CORD / AV CORD is

tightly inserted) (2) Connect the AV JACK Tester. (3) Controller (GWS103-4) on. (4) GND Test (Auto)

- If Test is failed, Buzzer operates.

- If Test is passed, execute next process (Hi-pot test). (Remove A/V CORD from A/V JACK BOX) (5) HI-POT test (Auto)

- If Test is failed, Buzzer operates.

- If Test is passed, GOOD Lamp on and move to next process

automatically.

6.3. Checkpoint

(1) Test voltage

- GND: 1.5KV/min at 100mA

- SIGNAL: 3KV/min at 100mA (2) TEST time: 1 second (3) TEST POINT

- GND Test = POWER CORD GND and SIGNAL CABLE GND.

- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL. (4) LEAKAGE CURRENT: At 0.5mArms

5.5. Option selection per country

5.5.1. Overview

(1) Option selection is only done for models in Non-USA North

America due to rating

(2) Applied model: LA2AC Chassis is applied in USA

5.5.2. Method

(1) Press ADJ key on the Adj. R/C, and then select Country

Group Menu

(2) Depending on destination, select KR or US, then on the

lower Country option, select US, CA, MX.

Selection is done using +, - KEY

5.5.3. Tool Option inspection

▪ Press Adj. key on the Adj. R/C, then select Tool option.

Model Tool 1 Tool 2 Tool 3 Tool 4 Tool 5

42CQ610H-UA 24576 8202 53257 2564 8448 114

COMMERCIAL OPTION

5.7. Ship-out mode check (In-stop)

▪ After final inspection, press In-Stop key of the Adj. R/C and

check that the unit goes to Stand-by mode

7. AUDIO

No Item Min Typ Max Unit

1. Audio practical max Output, L/R (Distortion=10% max Output)

2. Speaker (8Ω Impedance)

● Measurement condition:

(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation (2) CVBS, Component: 1KHz sine wave signal 0.4Vrms (3) RGB PC: 1KHz sine wave signal 0.7Vrms

6.3 7.0 8.4 W Measurement

7.09 7.48 8.19 Vrms

5.0 15.0 W Measurement

condition EQ Off AVL Off Clear Voice Off

condition EQ On AVL On Clear Voice On

Only for training and service purposes

- 10 -

8. USB Boot file Download (Option, Service only)

(1) Execute ISP program “Mstar ISP Utility” and then click

“Config” tab.

(2) Set as below, and then click “Auto Detect” and check “OK”

message. If “Error” is displayed, Check connection between computer, jig, and set.

(3) Click “Read” tab, and then load download file (XXXX.bin)

by clicking “Read”

(1)

filexxx.bin

(4) Click “Connect” tab. If “Can’t ” is displayed, Check

connection between computer, jig, and set

(2)

(3)

9. USB S/W Download (optional, Service only)

(1) Put the USB Stick to the USB socket (2) Automatically detecting update file in USB Stick

- If your downloaded program version in USB Stick is lower than that of TV set, it didn’t work. Otherwise USB data is automatically detected.

(3) Show the message “Copying files from memory”

(4) Updating is staring.

Please Check the Speed To use speed between from 200KHz to 400KHz

(5) Click “Auto” tab and set as below (6) Click “Run”. (7) After downloading, check “OK” message

(5) Updating Completed, The TV will restart automatically (6) If your TV is turned on, check your updated version and

Tool option.

* If downloading version is more high than your TV have, TV

can lost all channel data. In this case, you have to channel recover. If all channel data is cleared, you didn’t have a DTV/ ATV test on production line.

* After downloading, TOOL OPTION setting is needed again. (1) Push "IN-START" key in service remote controller. (2) Select "Tool Option 1" and Push “OK” button. (3) Punch in the number. (Each model has their number.)

Only for training and service purposes

- 11 -

10. LAN Main board Check

10.1. Overview

▪ It is LNET RF modem & FTG card

10.4.2. Working procedure

10.4.2.1. Connection

10.2. Equipment

(1) b_LAN Checker: UTC-1000 (with Cable accessory) (2) Computer(for test result monitoring) (3) Connection JIG

10.3. Equipment connection map & b_LAN Check

10.4.2.2. Power on JIG : Switch on front of the JIG

10.4.2.3. Test Start

10.4.2.4. Checking b-LAN MAC Address

UTC-1000 LAN <- -> PC LAN Port UTC-1000 TOP1 <- -> Game port(RJ21)

-> TV-LINK CFG (Phone Jack)

UTC-1000 RF1 <- -> b_LAN RF IN

UTC-1000 TOP2 <- -> JIG 11pin Connection

Check whether it is same their address numbers or not between B-LAN Label and on the pc address numbers

10.4. Check

10.4.1. Setting Procedure

10.4.1.1. Setting JIG (1) Connect UTC-1000 Equipment to JIG device as a like left

picture

- Connection Line: UTC-1000 TOP1 <- -> Game port(RJ21)

-> TV-LINK CFG (Phone Jack) UTC-1000 TOP2 <- -> JIG 11pin Connection UTC-1000 RF1 <- -> b_LAN RF IN UTC-1000 LAN <- -> PC LAN Port

※ Checking JIG contents (1) Check whether displaying all “Pass” or not at the number

3.4.6.7.9 contents of UTC-1000 on the PC (2) Check “Version 6.0” of the 1. b_LAN Application version (3) Check whether it is same their address numbers or not

between B-LAN Label and 2. MAC Address on the pc.

11. Serial number download

Connect Bar Code scan equipment and TV set by RS-232C cable (1)E2PROM Data Write

(2) E2PROM Data Read

Only for training and service purposes

- 12 -

+ 27 hidden pages

LG 42CQ610H-UA Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual