General Information. Technical information

General Information

Service Bulletin Page 1 of 19 Bulletin No. GLZ201600071

* Subject: Repair guide for LED Array * Bulletin Registration Date: 2016.03.04

* Effective from Date: 2016.03.04 ~

• Applicable for models

From 2014 to 2015 models See Excel Attachement

* Applicable

Serial Number: Form 2014 year to 2015 year

Applicable in warranty:

Applicable only with symptoms below:

YES

 

YES

NO

Also applicable outside of warranty:

YES



NO

NO

Applicable with every repair:

YES

NO

Technical information * 1) Symptoms / Customer Complaint - Hot spot / No Backlight /Abnormal Display / Dark Screen/ Faulty Display / Others * 2) Problem / Cause

- Weak Backlight LED LENS adhesive - Electrical stress has caused an LED Package to fail. * 3) Solution: (Short explanation of the solution) - Replace Backlights with new LED Arrays.



Service Bulletin Page 2 of 19 Bulletin No. GLZ201600071

Details

Backlights

On

Bright Point

No

1st, Check the backlight On/Off -This guide is for backlight off or backlight Bright point 2nd, Check the backlight Bright point when Backlight is on

Off Yes Check Module P/N and name

3rd, Check the Module Name & P/N on Module Label -The LED Array varies from Module Name & P/N beginning on page 3. * Please see the next page about how to order the new LED Array.

Check LED Bar

Other Defect

4th, Check the arrangement of LED Bar -Check to see if the type & P/N looks correct beginning on page 9. 5th, Replace the LED Array -Replace the new part carefully

Replace LED Array

Attachment. How to order the new LED Array 1. Check the Label on back side of module

Service Bulletin Page 3 of 19 Bulletin No. GLZ201600071

2. Check the Module Name & P/N

Example Name: HC600DUF-VHHS2, P/N: EAJ62570501

3. Match the LED Array P/N with Panel P/N table. Or use the Excel file attachement. - Refer to pages (4 ~ 7).

[Working Methods] When different LED Bar Connector Type

Service Bulletin Page 4 of 19 Bulletin No. GLZ201600071

When the connector is a different LED bar connector, use direct soldering working guide below. 4-1. If both open, you can soldering this way.

1. New LED Bar connector is a different type

3. Tester use pattern check. Test between (-) (+) to connector.

(-) Lead and (+) Lead open 4-2. If not open, you can soldering this way. 2. Cutting off the cable for connector. Check continuity between Test points (-) and (+) to connector leads.

Pay attention to which wire goes to (+) and (-). (-) Lead not open (+) Lead open After Cutting off the cable strip each wire about 1/8 inch. Pre-Tint the wires before soldering. Solder paste will help considerably.

Be sure Test Points (-) and (+) are clean before soldering. Avoid excessive solder.

Attachment. Configuration of Module LED Array Model Name

Module P/No.

32LB55/53

EAJ62589201 EAJ62587701 EAJ62649401 EAJ63112001 EAJ63112501 EAJ62589301 EAJ62669001 EAJ62589301 EAJ62649501 EAJ62568801 EAJ62629201 EAJ63113001 EAJ63447801 EAJ63112101 EAJ63112601 EAJ63149801 EAJ62848101 EAJ62848201 EAJ62827701 EAJ62827801 EAJ62689401 EAJ62689501 EAJ62847901 EAJ62848001 EAJ62570101 EAJ62649601 EAJ62608501 EAJ62609901 EAJ63229901 EAJ63170901 EAJ63229101 EAJ63229601 EAJ63229701 EAJ63170401 EAJ63170501 EAJ63228801 EAJ63228901

32LB56 32LF56/58 32LB55/53 32LB56 32LB62 32LF5500 32LF56/58 32LF6200

32LB55

32LB56

32LF55

32LF56

Module Name LC320DUE-FGA5 LC320DUE-FGA3 LC320DUE-FGA4 LC320DUE-MGA3 LC320DUE-MGA4 LC320DXE-FGA5 LC320DXE-FGA6 LC320DXE-FGA3 LC320DXE-FGA4 LC320DXE-FGP1 LC320DXE-FGP2 LC320DXE-MGA6 LC320DXE-MGA8 LC320DXE-MGA3 LC320DXE-MGA4 LC320DXE-MGP2 HC320DXN-VHHR1 HC320DXN-VHHR2 HC320DXN-VSHR1 HC320DXN-VSHR2 NC320DXN-VSBP3 NC320DXN-VSBP4 HC320DXN-VHHS1 HC320DXN-VHHS2 HC320DXN-VSHS1 HC320DXN-VSHS2 NC320DXN-VSBP1 NC320DXN-VSBP2 HC320DXN-VHHR4 HC320DXN-VSHR4 NC320DXN-VSBP8 HC320DXN-VHHS3 HC320DXN-VHHS4 HC320DXN-VSHS3 HC320DXN-VSHS4 NC320DXN-VSBP5 NC320DXN-VSBP6

LGE Array P/No. (Component Repair Part)

Service Bulletin Page 5 of 19 Bulletin No. GLZ201600071

LED Array Model

AGF78399801

LATWT322RXLZK

AGF78399901

LATWT322RYLZK

AGF78400001

LATWT325RXLZK

Service Bulletin Page 6 of 19 Bulletin No. GLZ201600071

Attachment. Configuration of Module LED Array Model Name 32LB55

32LB56

32LF55

32LF55

39LB56

47LB56 47LB64/65 50LB56 50LF56/58 50LB64/65 50LF6500

Module P/No. EAJ62570601 EAJ62649801 EAJ62968801 EAJ63008901 EAJ62570201 EAJ62649701 EAJ63028101 EAJ63028201 EAJ62968601 EAJ62968701 EAJ63170101 EAJ63170201 EAJ63170301 EAJ63171201 EAJ63171301 EAJ63169801 EAJ63170701 EAJ62807601 EAJ62807701 EAJ62807801 EAJ62608601 EAJ62689301 EAJ62768101 EAJ62768201 EAJ62587801 EAJ62649201 EAJ62548201 EAJ62647901 EAJ62571201 EAJ62649101 EAJ63328801 EAJ63328901 EAJ62548101 EAJ62648001 EAJ63329001

Module Name HC320DXN-ABHR1 HC320DXN-ABHR2 NC320DXN-VBBP3 NC320DXN-VBBP4 HC320DXN-ABHS1 HC320DXN-ABHS2 NC320DUN-VBBP1 NC320DUN-VBBP2 NC320DXN-VBBP1 NC320DXN-VBBP2 NC320DXN-VBBP8 HC320DXN-ABHS3 HC320DXN-ABHS4 NC320DUN-VBBP3 NC320DUN-VBBP4 NC320DXN-VBBP5 HC320DXN-ABHR4 HC390DUN-VCHS1 HC390DUN-VCHS2 HC390DUN-VCHS3 NC390DUN-VXBP1 NC390DUN-VXBP2 HC390DUN-VAHS1 HC390DUN-VAHS2 LC470DUE-FGA3 LC470DUE-FGA4 LC470DUH-FGP1 LC470DUH-FGP2 LC500DUE-FGA3 LC500DUE-FGA4 LC500DUE-MGA3 LC500DUE-MGA4 LC500DUH-FGP1 LC500DUH-FGP2 LC500DUH-MGP1

LGE Array P/No. (Component Repair Part)

AGF78400101

AGF78400201

LED Array Model

LATWT326RXLZK

LATWT329RXLZK

AGF78400501

LATWT391RXLZK

AGF78400601

LATWT398RXLZK

AGF78400901

LATWT471RXLZK

AGF78401001

LATWT472RXLZK

AGF78401301

LATWT501RXLZK

AGF78401401

LATWT502RXLZK

Attachment. Configuration of Module LED Array Model Name 50LB56 50LF56 55LB55/53 55LB56 55LB62 55LF5500 55LF56/58 55LF6200 55LB64/65 55LF6500 60LB64/65 60LF6500 65LB57/58 65LF6500 60LB56 60LF56 70LB56 70LB65 70LF56 49LB55/53 49LB62 49LF5500 49LF6200

Module P/No. EAJ62608701 EAJ62689201 EAJ63229001 EAJ63229201 EAJ62588901 EAJ62668701 EAJ62567701 EAJ62649001 EAJ62548801 EAJ62628901 EAJ63112701 EAJ63111801 EAJ63112301 EAJ63149501 EAJ62548001 EAJ62668601 EAJ63148701 EAJ62547901 EAJ62668501 EAJ63148601 EAJ62549101 EAJ62629301 EAJ63148501 EAJ62570801 EAJ62570501 EAJ63229501 EAJ62689101 EAJ62570401 EAJ62689001 EAJ63267801 EAJ62589001 EAJ62668801 EAJ62568501 EAJ62629001 EAJ63112801 EAJ63149601

Module Name NC500DUN-VXBP1 NC500DUN-VXBP2 NC500DUN-VXBP3 NC500DUN-VXBP4 LC550DUE-FGA5 LC550DUE-FGA6 LC550DUE-FGA3 LC550DUE-FGA4 LC550DUE-FGP1 LC550DUE-FGP2 LC550DUE-MGA6 LC550DUE-MGA3 LC550DUE-MGA4 LC550DUE-MGP2 LC550DUH-FGP1 LC550DUH-FGP2 LC550DUH-MGP1 LC600DUF-FGP1 LC600DUF-FGP2 LC600DUF-MGP1 LC650DUF-FGA1 LC650DUF-FGA2 LC650DUF-MGF1 HC600DUF-VHHS1 HC600DUF-VHHS2 HC600DUF-VHHS3 HC600DUF-VHHS4 HC700CUF-VHHD1 HC700CUF-VHHD2 HC700CUF-VHHD3 LC490DUE-FGA5 LC490DUE-FGA6 LC490DUE-FGP1 LC490DUE-FGP2 LC490DUE-MGA6 LC490DUE-MGP2

LGE Array P/No. (Component Repair Part)

Service Bulletin Page 7 of 19 Bulletin No. GLZ201600071

LED Array Model

AGF78401501

LATWT503RXLZK

AGF78401601

LATWT552RXLZK

AGF78401701

LATWT553RXLZK

AGF78401801

LATWT602RXLZK

AGF78401901

LATWT603RXLZK

AGF78402001

LATWT702RXLZK

AGF78402201

LATWT491RXLZK

Service Bulletin Page 8 of 19 Bulletin No. GLZ201600071

Attachment. Configuration of Module LED Array Model Name 42LB55/53 42LB56 42LB62 42LB64/65 42LF5500 42LF56/58

42LF6200 42LF6500

Module P/No.

Module Name

EAJ62589101 EAJ62668901 EAJ62567801 EAJ62649301 EAJ62568601 EAJ62629101 EAJ62548301 EAJ62647801 EAJ63112901 EAJ63111901 EAJ63112401 EAJ63149701 EAJ63148801

LC420DUE-FGA5 LC420DUE-FGA6 LC420DUE-FGA3 LC420DUE-FGA4 LC420DUE-FGP1 LC420DUE-FGP2 LC420DUH-FGP1 LC420DUH-FGP2 LC420DUE-MGA6 LC420DUE-MGA3 LC420DUE-MGA4 LC420DUE-MGP2 LC420DUH-MGP1

LGE Array P/No. (Component Repair Part)

AGF78402101

LED Array Model

LATWT421RXLZK

Attachment. Arrangement for each inch (32”) 1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 3 bar/set) - LED Array Size (A & B): 590.00 x 15.00 x 9.89 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 6 LEDs ea/bar-2 bar/Set - (B) Type: 6 LEDs ea/bar-1 bar/Set (Total 18 LEDs)

2. Arrangement

Array A

Array B

Array A

Refer to marked letter on LED Circuit Board

Service Bulletin Page 9 of 19 Bulletin No. GLZ201600071

Attachment. Arrangement for each inch (39”)

Service Bulletin Page 10 of 19 Bulletin No. GLZ201600071

1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 8 bar/set) - LED Array Size (A): 403.00 x 15.00 x 9.89 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (B): 401.00 x 15.00 x 9.89 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 4 LEDs ea/bar-4 bar/Set - (B) Type: 4 LEDs ea/bar-4 bar/Set (Total 32 LEDs) 2. Arrangement

Array A

Array B

Refer to marked letter on LED Circuit Board

Attachment. Arrangement for each inch (42”)

Service Bulletin Page 11 of 19 Bulletin No. GLZ201600071

1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 8 bar/set) - LED Array Size (A): 400.20 x 15.00 x 9.84 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (B): 425.20 x 15.00 x 9.84 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 4 LEDs ea/bar-4 bar/Set - (B) Type: 4 LEDs ea/bar-4 bar/Set (Total 32 LEDs) 2. Arrangement

Array A

Array B

Array A

Array B

Array A

Array B

Array A

Array B

Refer to marked letter on LED Circuit Board

Attachment. Arrangement for each inch (47”)

Service Bulletin Page 12 of 19 Bulletin No. GLZ201600071

1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 8 bar/set) - LED Array Size (A): 537.00 x 15.00 x 9.84 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (B): 440.00 x 15.00 x 9.84 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 5 LEDs ea/bar-4 bar/Set - (B) Type: 4 LEDs ea/bar-4 bar/Set (Total 36 LEDs) 2. Arrangement

Array A

Array B

Array B

Array A

Array A

Array B

Array B

Array A

Refer to marked letter on LED Circuit Board

Wire Connector Ass'y Marking

Attachment. Arrangement for each inch (49”)

Service Bulletin Page 13 of 19 Bulletin No. GLZ201600071

1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 10 bar/set) - LED Array Size (A): 457.00 x 15.00 x 9.89 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (B): 567.00 x 15.00 x 9.89 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 4 LEDs ea/bar-5 bar/Set - (B) Type: 5 LEDs ea/bar-5 bar/Set (Total 45 LEDs) 2. Arrangement

Array A

Array B

Array B

Array A

Array A

Array B

Array B

Array A

Array A

Array B

Refer to marked letter on LED Circuit Board

Wire Connector Ass'y Marking

Attachment. Arrangement for each inch (50”)

Service Bulletin Page 14 of 19 Bulletin No. GLZ201600071

1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 10 bar/set) - LED Array Size (A): 458.00 x 15.00 x 9.34 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (B): 568.00 x 15.00 x 9.34 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 4 LEDs ea/bar-5 bar/Set - (B) Type: 5 LEDs ea/bar-5 bar/Set (Total 45 LEDs) 2. Arrangement

Array A

Array B

Array B

Array A

Array A

Array B

Array B

Array A

Array A

Array B

Refer to marked letter on LED Circuit Board

Wire Connector Ass'y Marking

Attachment. Arrangement for each inch (55”)

Service Bulletin Page 15 of 19 Bulletin No. GLZ201600071

1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 10 bar/set) - LED Array Size (A): 549.00 x 15.00 x 9.84 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (B): 606.00 x 15.00 x 9.84 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 5 LEDs ea/bar-5 bar/Set - (B) Type: 6 LEDs ea/bar-5 bar/Set (Total 55 LEDs) 2. Arrangement

Array A

Array B

Array B

Array A

Array A

Array B

Array B

Array A

Array A

Array B

Refer to marked letter on LED Circuit Board

Wire Connector Ass'y Marking

Attachment. Arrangement for each inch (60”)

Service Bulletin Page 16 of 19 Bulletin No. GLZ201600071

1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 12 bar/1set) - LED Array Size (A): 650.00 x 15.00 x 9.85 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (B): 594.00 x 15.00 x 9.85 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 6 LEDs ea/bar-6 bar/Set - (B) Type: 5 LEDs ea/bar-6 bar/Set (Total 66 LEDs) 2. Arrangement

Array A

Array B

Array B

Array A

Array A

Array B

Array B

Array A

Array A

Array B

Array B

Array A

Refer to marked letter on LED Circuit Board

Attachment. Arrangement for each inch (65”)

Service Bulletin Page 17 of 19 Bulletin No. GLZ201600071

1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 24 bar/1set) - LED Array Size (A): 345.00 x 15.00 x 9.34 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (B): 581.00 x 15.00 x 9.34 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (C): 445.85 x 15.00 x 9.34 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 3 LEDs ea/bar-8 bar/Set - (B) Type: 5 LEDs ea/bar-8 bar/Set - (C) Type: 4 LEDs ea/bar-8 bar/Set (Total 96 LEDs) 2. Arrangement

Array A

Array B

Array C

Array C

Array B

Array A

Array A

Array B

Array C

Array C

Array B

Array A

Array A

Array B

Array C

Array C

Array B

Array A

Array A

Array B

Array C

Array C

Array B

Array A

Refer to marked letter on LED Circuit Board

Attachment. Arrangement for each inch (70”)

Service Bulletin Page 18 of 19 Bulletin No. GLZ201600071

1. Feature - White Color LED Array - Top view type LED Array on CEM3 PCB (Type: 24 bar/1set) - LED Array Size (A): 581.00 x 15.00 x 9.84 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (B): 373.60 x 15.00 x 9.84 (Unit: mm) [LXW(PCB) X H(LENS)] - LED Array Size (C): 535.80 x 15.00 x 9.84 (Unit: mm) [LXW(PCB) X H(LENS)] - (A) Type: 6 LEDs ea/bar-8 bar/Set - (B) Type: 4 LEDs ea/bar-8 bar/Set - (C) Type: 6 LEDs ea/bar-8 bar/Set (Total 128 LEDs) 2. Arrangement

Array A

Array C Array A Array C Array A Array C

Array B

Array C Array A

Array B Array B

Array C Array A

Array B Array B

Array C

Array B

Array A

Array B

Array C

Array B

Array A Array C

Refer to marked letter on LED Circuit Board

Array A

Attachment. Repair guide for LED Array

Service Bulletin Page 19 of 19 Bulletin No. GLZ201600071

This service is for Pickup and Delivery Service Only Repair Flow

Preparation for replace “LED Array”

Recommendations

LED Array Information

- 32” : LED Type : A / B (2bar/1bar)

01

Separate the board (Main/Power/T-CON)

02

Disassemble the module

- 49”,50”,55” : LED Type : A / B/ C (each 8bar)

03

Detach the LED Bar from BLU

Environment

04

Attach the new LED Bar on BLU

05

Assemble the module

06

Assemble the board (Main/Power/T-CON)

07

Clean up the module

- 39”,42”,47” : LED Type : A / B (each 4bar) - 49”,50”,55” : LED Type : A / B (each 5bar) - 60” : LED Type : A / B (each 6bar)

① Room with less dust ② Work place approximatly 15'x15' Flat, soft area to lay panel and sheets. Tool ① Gloves, Apron, Oversleeve ② Compressor for module * If needed, purchase locally. Be sure to obtain a moisture trap.