Samsung UN40C8000 Schematic

LED-TV

Chassis : N81B

Model : UN40C8000XM

UN46C8000XM UN55C8000XM UN65C8000XM

Manual

SERVICE

TFT-LED TV Contents

1. Precautions

2. Product specications

3. Disassembly and Reassembly

4. Troubleshooting

5. Exploded View & Part List

6. Wiring Diagram

UN40C8000XM / UN46C8000XM UN55C8000XM / UN65C8000XM

Refer to the service manual in the GSPN (see the rear cover) for the more information.

Contents

1. Precautions .............................................................................................................. 1-1

1-1. Safety Precautions ......................................................................................................... 1-1

1-2. Servicing Precautions .....................................................................................................1-2

1-3. Electrostatically Sensitive Devices (ESD) Precautions .................................................. 1-2

1-4. Installation Precautions .................................................................................................. 1-3

2. Product specications ............................................................................................ 2-1

2-1. Feature & Specications ................................................................................................. 2-1

2-2. Spec Comparison to the Old Models .............................................................................. 2-5

2-3. Detail Factory Option ...................................................................................................... 2-6

2-4. Channel Table ................................................................................................................. 2-7

2-5. New Functional Explanation ........................................................................................... 2-9

2-6. Accessories .................................................................................................................. 2-24

3. Disassembly and Reassembly ............................................................................... 3-1

3-1. Disassembly and Reassembly ....................................................................................... 3-1

4. Troubleshooting ...................................................................................................... 4-1

4-1. Troubleshooting .............................................................................................................. 4-1

4-2. Alignments and Adjustments ........................................................................................ 4-32

4-3. Factory Mode Adjustments ........................................................................................... 4-33

4-4. White Balance - Calibration .......................................................................................... 4-49

4-5. Servicing Information .................................................................................................... 4-51

5. Exploded View & Part List ...................................................................................... 5-1

5-1. Exploded View ................................................................................................................ 5-1

5-2. Parts List ......................................................................................................................... 5-2

6. Wiring Diagram ........................................................................................................ 6-1

6-1. Wiring Diagram ............................................................................................................... 6-1

6-2. Connector ....................................................................................................................... 6-2

6-3. Connector Functions ...................................................................................................... 6-4

6-4. Cables ............................................................................................................................ 6-4

GSPN (Global Service Partner Network)

Area Web Site

North America http://service.samsungportal.com

Latin America http://latin.samsungportal.com

CIS http://cis.samsungportal.com

Europe http://europe.samsungportal.com

China http://china.samsungportal.com

Asia http://asia.samsungportal.com

Mideast & Africa http://mea.samsungportal.com

This Service Manual is a property of Samsung Electronics Co.,Ltd.

Any unauthorized use of Manual can be punished under applicable International and/or domestic law.

Printed in Korea P/N: BN82-00978A-00

6. Wiring Diagram

T-CON

SMPS

Woofer

Speaker

Function

Main Board

CN1701

CN2101

CNL801

CNM802

Panel

CN302

CN601

CN301W

CN802S

POWER CORD

Speaker

CN201

Emitter

CON1

CNL803

CNL802

6-1. Wiring Diagram

46" / 55" / 65" 

6. Wiring Diagram

6-1

6-2

6. Wiring Diagram

6-2. Connector

CN2101(to T-CON)

GND

SW_PVCC

FRC_RESET

SDA

SCL

LVDS opt

H-Sync Out

Panel_WP

T_Con Check

GND

RE[4]+

RE[4]-

RE[3]+

RE[3]-

GND

RECLK+

RECLK-

GND

RE[2]+

RE[2]-

RE[1]+

RE[1]-

RE[0]+

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

RE[0]GND RO[4]+ RO[4]RO[3]+ RO[3]GND ROCLK+ ROCLKGND RO[2]+ RO[2]RO[1]+ RO[1]RO[0]+ RO[0]GND GND GND NC Panel_VCC Panel_VCC Panel_VCC Panel_VCC Panel_VCC

CN302(to Speaker)

R+

R-

L+

L-

CN301W(to Woofer)

SW+

SW-

SW+

SW-

CN601

GND

A3.3V

LED_INDICAT

BUZZER

KEY1

7 8 9 10 11 12

KEKY2 NCL A5V NC LED_CTRL B5V

CN502(to HDMI1)

HDMI1_RX2+

DGND

HDMI1_RX2-

HDMI1_RX1+

DGND

HDMI1_RX1-

HDMI1_RX0+

DGND

HDMI1_RX0-

HDMI1_RXCLK+

DGND

HDMI1_RXCLK-

HDMI_CEC

DGND

HDMI1_DDC_SCL

HDMI1_DDC_SDA

DGND

HDMI1_5V

HDMI1_HPD

CN401(to PC_IN)

PC_RED

PC_GREEN

PC_BLUE

DGND

PC_5V

PC_IDENT

DGND

SDA_DOWN

PC_H_SYNC

PC_V_SYNC

SCL_DOWN

CN1403(to USB1)

USB0_VCC

USB0_DM

USB0_DP

DGND

CN1401(to USB2)

USB1_VCC

USB1_DM

USB1_DP

DGND

6-3

6. Wiring Diagram

CN503(to HDMI2)

HDMI2_RX2+

DGND

HDMI2_RX2-

HDMI2_RX1+

DGND

HDMI2_RX1-

HDMI2_RX0+

DGND

HDMI2_RX0-

HDMI2_RXCLK+

CN504(to HDMI3)

HDMI3_RX2+

DGND

HDMI3_RX2-

HDMI3_RX1+

DGND

HDMI3_RX1-

HDMI3_RX0+

DGND

HDMI3_RX0-

HDMI3_RXCLK+

DGND

HDMI2_RXCLK-

HDMI_CEC

DGND

HDMI2_DDC_SCL

HDMI2_DDC_SDA

DGND

HDMI2_5V

HDMI2_HPD

DGND

HDMI3_RXCLK-

HDMI_CEC

DGND

HDMI3_DDC_SCL

HDMI3_DDC_SDA

DGND

HDMI3_5V

HDMI3_HPD

CN1701

1 SSTT_LEFT 8 DGND

2 SDATA_LEFT 9 DGND

3 VSYNC_IN_LEFT 10 NC

4 DGND 11 NC

5 SEN0_LEFT 12 SCL_D

6 SCLK_LEFT 13 SDA_D

7 SEN1_LEFT 14 SW_RESET_LEFT

CN501(to HDMI4)

HDMI4_RX2+

DGND

HDMI4_RX2-

HDMI4_RX1+

DGND

HDMI4_RX1-

HDMI4_RX0+

DGND

HDMI4_RX0-

HDMI4_RXCLK+

CN201(to CNM802)

DET_5V

PWM

DGND

B5V

B13V

DGND

B5V

DGND

HDMI4_RXCLK-

HDMI_CEC

DGND

HDMI4_DDC_SCL

HDMI4_DDC_SDA

DGND

HDMI4_5V

HDMI4_HPD

B5V

DGND

B12VS

DGND

A5V

DGND

A5V

FRC_M_HSYNC

6. Wiring Diagram

6-3. Connector Functions

Connector Functions

CNM801  CN201

CN2101  T-CON

CNL803  CN1701

Supply power from SMPS to Main Board.

The LVDS signal transfered from Main Board to Panel.

Main Board controls LED Driver for Local Dimming.

6-4. Cables

Use Main-SMPS Main-Tcon Function Assy

Code

Photo

40",46",55" : BN39-01291A

65" : BN39-01375A

46" : BN96-12723Q 55" : BN96-12723R 65" : BN96-14108E

46" : BN96-14056C 55" : BN96-14056D 65" : BN96-15474G

6-4

4. Troubleshooting

4-1. Troubleshooting

Check the various cable connections rst. 1.

• Check to see if there is a burnt or damaged cable.

• Check to see if there is a disconnected or loose cable connection.

• Check to see if the cables are connected according to the connection diagram.

Check the power input to the Main Board.2.

Check the internal patterns from the SVC option. 3. FBE : Factory mode(INFO - MENU - MUTE POWER ON when TV is "standby on") -> SVC -> Test Pattern -> FBE Pattern Sel "FBE pattern is created by Main IC(Valencia)

Case1: FBE pattern is ok , then change the T-con Board. Case2: FBE pattern is NG , change the main Board.

SMPS BOARD

T-CON

MAIN BOARD

4-1

4-2

4. Troubleshooting

Simple ow chart of malfunction 

Does the TV turn on?

Check the Power Cord

Yes

is any sound of TV

when RF signal

connected?

Yes

Can you see anything

on the screen?

Yes

Check LVDS cable connected

Check LVDS

cable connected.

If necessary replace the

T-con board.

Can you see

OSD menu running on

the screen?

to Main Board.

If necessary,

replace the Main Board

Change the main board.

Yes

Can you see Digital

Channel broadcast ?

Replace the Main Board

A5V appear at

the pin 4 of CN1001?

Yes

B13V appear at the

pin 13,15,17 of

CN1001?

Yes

Please, contact Tech

support

Check 18p cable.

If necessary, replace the

SMPS board.

Change the main board.

4-3

4. Troubleshooting

4-4

4. Troubleshooting

Troubleshooting about new functions 

Problem

AllShare (General)•

I see no device connected to AllShare.

I tried to play a video from my cell phone using the Connected Home function on the Samsung TV but the video would not display on the TV.

A video that can be played on my cell phone cannot be played on my TV.

I cannot resume playback of a video using Connected Home.

When I play a video through Connected Home, I get intermittent picture loss.

Possible Solution

To use a device connected to AllShare, the device must be connected to PC • Share Manager which is the DLNA server for MediaPlay and to a cell phone that has the Connected Home or Screen Share function which are found on Samsung Smartphones.

Check that the PC Share Manager is enabled, the Samsung TV is set to allow • connections and the ScreenShare function on the connected cell phone is enabled.

To use the cell phone’s Connected Home function, check that the shared folder is • set and the Share mode is ‘On.’

When a video is transmitted from Connected Home to a TV for the rst time, the • settings screen that allows transfer to a TV is displayed.

Check that the transfer was not set to be rejected on this settings screen. If you • have set the cell phone to ‘Blocked’ in the ‘Media’ options of the AllShare settings, please change the setting to ‘Unblocked’ and retry.

Please check the resolution and display format provided by MediaPlay of the TV.•

The resuming function is not supported for a video played on a cell phone.•

An 801.11b/g bandwidth network is used between a cell phone and a sharing • device. There may be frequent buffering for HD quality videos, this also depends on the condition of the wireless connection.

Please optimize your wireless Internet environment settings (avoid using wireless • Internet or bluetooth altogether if possible) or lower the picture quality of the video.

AllShare (Notication)•

Can all devices with the DLNA function be recognized through Notication?

Can I use all the services related to DLNA?

The notication screen that appears after a device connects disappears within a few seconds. How can I access this connected device again?

AllShare (ScreenShare Client)•

I cannot nd the RUIS on my cell phone.

Only Samsung software and devices with the DLNA server function can be • recognized through Notication.

Presently, you can only use the services related to ScreenShare and MediaPlay. • We will launch a new DLNA service in the future.

The DLNA Notication is only displayed when a device is rst connected to a TV. • To access the device again, please use the AllShare menu.

Check that the cell phone is connected to the wireless sharing device correctly.1. Check that the DTV is connected either using a network cable or wirelessly to the 2.

wireless sharing device correctly. Conrm the IP address and subnet mask to ensure that the cell phone and DTV 3.

are connected to the same network. Check that the RUIS on the cell phone is enabled.4. If the RUIS on the cell phone is enabled, please disable it and then enable it again.5.

4-5

4. Troubleshooting

Problem

AllShare (ScreenShare Server)•

I cannot nd the remote control service provided by the ScreenShare Server from the ScreenShare Client.

The DTV did not update after pressing buttons on the remote control that uses the remote control service on the ScreenShare

Client.

Possible Solution

Check that the ScreenShare Client device is correctly connected to the network of 1. the sharing device that the DTV is connected to.

Run network test in the network setup menu and conrm that MAC Address, IP 2. Address, Subnet, Gateway, DNS Server and Gateway Ping each shows a success message.

In the network setup menu, check that the ScreenShare Client and ScreenShare 3. Server are on the same subnet.

- You can conrm they are on the same subnet by checking the IP address, subnet mask and gateway address of the TV and ScreenShare Client as follows:

- If the IP address of the DTV is 10.88.83.4 and the subnet mask is 255.255.255.0, the rst six digits of the ScreenShare Client’s IP address must be the same (10.88.83) as that of the DTV, and the subnet mask and gateway address must be the same as the DTV.

- If the IP address of the DTV is 10.88.83.4 and the subnet mask is 255.255.0.0, the rst four digits of the ScreenShare Client’s IP address must be the same (10.88) as that of the DTV, and the subnet mask and gateway address must be the same as the DTV.

Move from the Allshare screen to the Setup screen, and open the Setup menu to 4. check if the ScreenShare Client is connected to the same ScreenShare Server as the TV name shown in the Setup options.

Move from the Allshare screen to the Setup screen, and open ScreenShare to 5. check that the device, ScreenShare Client, is found on the list at the right side and is set to "Allowed."

Check that the TV is turned on. • You cannot turn on the TV using the remote control service (on the ScreenShare) when the TV is turned off.

4-6

4. Troubleshooting

Problem

Network Setup•

How do I setup the network?

How do I check the network status?

In a network test over a wired connection, the second items which include the IP address, subnet, gateway and DNS server fail.

In a network test over a wired connection, the third item, gateway ping fails.

cannot connect to a wireless network.

Possible Solution

Click the [Menu] button and open [Setup] to select [Network]. • Congure wired or wireless network settings. For details, please refer to the IB.

Select [Menu] •  [Setup]  [Network] and run [Network Test] to see test results and

check the network status.

If the IP address, subnet mask and gateway address were typed in manually, • check that valid values were entered. (For example, 0.0.0.0 is not valid for an IP address, subnet mask or gateway address.) If the IP address the user entered in is invalid, change it to a valid IP address.

Check that the network cable is connected to the TV correctly.1. If the TV is connected correctly, check whether the IP address is automatic or 2.

manual. If the IP is automatic and connected to a sharing device, check the settings of the 3.

sharing device (AP) that is using a cable connection, or consult the corresponding Internet service provider.

If the IP is manual, check if the IP address is entered correctly. 4. (Here, the user should conrm if the manual IP address entered in is valid.)

If an encryption key must be entered in to connect to a sharing device, please 1. check that the correct password set for the sharing device is entered.

Search surrounding sharing devices to see if there is a sharing device with the 2. same SSID by selecting [Wireless Network Setup] and [Select Network]. If there is a sharing device with the same SSID, try to connect to this device.

If the IP address is set to automatic and you cannot connect to the sharing 3. device using option 1 or 2, check the settings of the sharing device to see if the DHCP server function on the sharing device is enabled. If disabled, activate the function. (For details on how to set up the sharing device, see the manual for the corresponding sharing device.)

If you still cannot connect to the sharing device after conrming options 1, 2 and 3, 4. reset the sharing device and try again.

When using a wireless network, the user’s wireless sharing device cannot connect to the PBC (WPS).

The auto-conguring sharing device cannot be connected to automatically through a wireless dongle. (Here, the user’s sharing device must support auto-conguration.)

Although the TV is placed close to the AP and the dongle is inserted into the TV, the sharing device cannot be connected to using auto-conguration.

Although the TV is placed close to the AP and the dongle is inserted into the TV, the sharing device cannot be connected to using auto-conguration and a message that it is connecting is displayed only.

Check if the sharing device of the user supports WPS. 1. (Refer to the manual of the sharing device.)

Check if the user pressed the PBC button on the sharing device.2. If there is another sharing device with WPS running nearby, a connection cannot 3.

be made. Please retry after 2 minutes. Reset the sharing device and retry.4. If the sharing device of the user is not Wi-Fi certied, it may not be able to connect 5.

using WPS.

Check if the sharing device of the user supports auto conguration. 1. (For a list of sharing devices, refer to the IB or website.)

If the sharing device of the user supports auto conguration, place the sharing 2. device as close as possible to the wireless dongle on the TV and try to re-establish the connection. (Must be placed close to the TV to establish a connection.)

Select [Menu] •  [Setup]  [Network] and check if SWL is Off.

Check if the AP is not turned off during connection. • If the AP is turned off, the TV will try to re-establish a connection for 2 minutes.

4-7

4. Troubleshooting

Problem

In a network test over a wireless connection, the second items which include the IP address, subnet, gateway and DNS server fail.

In a network test over a wireless connection, the third item, gateway ping fails.

In a network test over a wireless connection, the fourth item, Internet service test fails.

Possible Solution

If Samsung Wireless Link is On, a 5G-bandwidth wireless sharing device may not • be found in a search (restriction).

If Samsung Wireless Link is Off or the product does not have the Samsung • Wireless Link function, please retry searching to nd the sharing device. (May not be found in a search depending on the settings of the wireless connection.)

If the IP address, subnet mask and gateway were typed in manually, check that • valid values were entered. (For example, 0.0.0.0 is not valid for an IP address, subnet mask or gateway address.)

If the IP address the user entered in is invalid, change it to a valid IP address.•

If the IP address is automatic and connected to a sharing device, check the 1. settings of the sharing device (AP) that is using a cable connection, or consult the corresponding Internet service provider.

If the IP address is manual, check that the IP address is entered in correctly. 2. (Here, the user should conrm if the manual IP entered in is valid.)

Please consult the corresponding Internet service provider (an Internet network • service provider the user has subscribed to such as KT).

4-8

4. Troubleshooting

4-1-1. No Power

Symptom

Major

checkpoints

Caution Make sure to disconnect the power before working on the PD board.

The PD board relay does not work when connecting the power cord. The units appears to be dead. -

The PD relay does not work when connecting the power cord if the cables are improperly connected or the Main Board or PD is not functioning. In this case, check the following:

Check the internal cable connection status inside the unit. Check the fuses of each part. Check the output voltage of PD. Replace the Main Board. -

Diagnostics

When power on, check the sound of

relay on?

Yes

Does proper Stand-By DC A5V appear

at the PIN 4 of CN1001?

Yes

Does proper Main DC B18VS, B5V,

B13V appear at the PIN 3, PIN 5,

PIN13 of CN

Does proper DC A3.3V appear at

the pin3 of IC1014?

Does proper DC B3.3V appear at

the pin8 of IC206, B9V appear at

3pin of IC1003?

Does proper Valencia core

3.3V,1.1V appear at C7001,C7022?

Yes

1001

check a connection power cable.

P/N : BN96-12845B

Change the Main Power assembly.

Change the IC1014 or the Main Assy.

Change the IC1008, IC1003 or

the Main Assy.

Change the IC1011, IC1005 or

the Main Assy.

A power is supplied to panel

appear at C9320?

Check a other function(No picture part).

Replace a LCD Panel.

4-9

4. Troubleshooting

Location (Main) - TOP

Location (Main) - BOTTOM

4-10

4. Troubleshooting

4-1-2. No Video (Analog PC signal)

Symptom Audio is normal but no picture is displayed on the screen. -

Major

checkpoints

Caution Make sure to disconnect the power before working on the PD board.

Check the PC source Check the IC7001(Valencia) This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. -

No video

Yes

Check the PC source and check the

connection of DSUB?

Yes

Input an analog PC signal.

Check the connected cable.

Diagnostics

Does the signal appear at pin 14, 16, 12,

6, 1(R,G,B,H,V) of CN3011?

Yes

Does the digital data appear at

output of IC6001?

Yes

Check the LVDS cable?

Replace the LCD panel?

Change the PC cable.

Change the main PCB assembly.

Change the IC6001 or

the main PCB assembly.

Please, contact Tech support.

4-11

4. Troubleshooting

Location (Main) - TOP

Location (Main) - BOTTOM

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