Samsung UN40C8000 Schematic

LED-TV

Chassis : N81B

Model : UN40C8000XM

UN46C8000XM

UN55C8000XM

UN65C8000XM

SERVICE Manual

TFT-LED TV		Contents

1. Precautions

2. Product specifications

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 specifications.............................................................................................		2-1
2-1. Feature & Specifications.................................................................................................		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.

© 2010 Samsung Electronics Co.,Ltd. All rights reserved.

Printed in Korea

P/N: BN82-00978A-00

6. Wiring Diagram

6. Wiring Diagram

6-1. Wiring Diagram

46" / 55" / 65"

Function IR	r Speake			CNM802 CN802S			Woofer
CORDPOWER	CON					CNL803	CNL802 CNL801	Panel
	- T					SMPS
	CON1
	Speake	CN601	CN302	CN2101	Main	CN201	CN301W CN1701
	r				Board

6-1

6. Wiring Diagram

6-2. Connector

CN2101(to T-CON)

1	GND	27	RE[0]-
2	GND	28	GND
3	SW_PVCC	29	RO[4]+
4	FRC_RESET	30	RO[4]-
5	SDA	31	RO[3]+
6	SCL	32	RO[3]-
7	LVDS opt	33	GND
8	H-Sync Out	34	ROCLK+
9	Panel_WP	35	ROCLK-
10	T_Con Check	36	GND
11	NC	37	RO[2]+
12	NC	38	RO[2]-
13	GND	39	RO[1]+
14	RE[4]+	40	RO[1]-
15	RE[4]-	41	RO[0]+
16	RE[3]+	42	RO[0]-
17	RE[3]-	43	GND
18	GND	44	GND
19	RECLK+	45	GND
20	RECLK-	46	NC
21	GND	47	Panel_VCC
22	RE[2]+	48	Panel_VCC
23	RE[2]-	49	Panel_VCC
24	RE[1]+	50	Panel_VCC
25	RE[1]-	51	Panel_VCC
26	RE[0]+

CN302(to Speaker)

1R+

2R-

3L+

4L-

CN301W(to Woofer)

1SW+

2SW-

3SW+

4SW-

CN601

1	IR	7	KEKY2
2	GND	8	NCL
3	A3.3V	9	A5V
4	LED_INDICAT	10	NC
5	BUZZER	11	LED_CTRL
6	KEY1	12	B5V

CN502(to HDMI1)					CN401(to PC_IN)					CN1403(to USB1)
1	HDMI1_RX2+	11	DGND		1	PC_RED	9	PC_5V		1	USB0_VCC
2	DGND	12	HDMI1_RXCLK-		2	PC_GREEN	10	PC_IDENT		2	USB0_DM
3	HDMI1_RX2-	13	HDMI_CEC		3	PC_BLUE	11	DGND		3	USB0_DP
4	HDMI1_RX1+	14	DGND		4	DGND	12	SDA_DOWN		4	DGND
5	DGND	15	HDMI1_DDC_SCL		5	DGND	13	PC_H_SYNC
6	HDMI1_RX1-	16	HDMI1_DDC_SDA		6	DGND	14	PC_V_SYNC		CN1401(to USB2)
7	HDMI1_RX0+	17	DGND		7	DGND	15	SCL_DOWN
										1	USB1_VCC
8	DGND	18	HDMI1_5V		8	DGND
										2	USB1_DM
9	HDMI1_RX0-	19	HDMI1_HPD
										3	USB1_DP
10	HDMI1_RXCLK+
										4	DGND

6-2

6. Wiring Diagram

CN503(to HDMI2)

1	HDMI2_RX2+	11	DGND
2	DGND	12	HDMI2_RXCLK-
3	HDMI2_RX2-	13	HDMI_CEC
4	HDMI2_RX1+	14	DGND
5	DGND	15	HDMI2_DDC_SCL
6	HDMI2_RX1-	16	HDMI2_DDC_SDA
7	HDMI2_RX0+	17	DGND
8	DGND	18	HDMI2_5V
9	HDMI2_RX0-	19	HDMI2_HPD
10	HDMI2_RXCLK+
CN504(to HDMI3)
1	HDMI3_RX2+	11	DGND
2	DGND	12	HDMI3_RXCLK-
3	HDMI3_RX2-	13	HDMI_CEC
4	HDMI3_RX1+	14	DGND
5	DGND	15	HDMI3_DDC_SCL
6	HDMI3_RX1-	16	HDMI3_DDC_SDA
7	HDMI3_RX0+	17	DGND
8	DGND	18	HDMI3_5V
9	HDMI3_RX0-	19	HDMI3_HPD
10	HDMI3_RXCLK+
CN501(to HDMI4)
1	HDMI4_RX2+	11	DGND
2	DGND	12	HDMI4_RXCLK-
3	HDMI4_RX2-	13	HDMI_CEC
4	HDMI4_RX1+	14	DGND
5	DGND	15	HDMI4_DDC_SCL
6	HDMI4_RX1-	16	HDMI4_DDC_SDA
7	HDMI4_RX0+	17	DGND
8	DGND	18	HDMI4_5V
9	HDMI4_RX0-	19	HDMI4_HPD
10	HDMI4_RXCLK+
CN201(to CNM802)
1	NC	16	B5V
2	NC	17	B5V
3	DET_5V	18	B5V
4	NC	19	DGND
5	PWM	20	DGND
6	DGND	21	DGND
7	B5V	22	DGND
8	NC	23	B12VS
9	B13V	24	B12VS
10	B13V	25	DGND
11	B13V	26	DGND
12	DGND	27	A5V
13	DGND	28	DGND
14	DGND	29	A5V
15	B5V	30	FRC_M_HSYNC

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

6-3

6. Wiring Diagram

6-3. Connector Functions

Connector	Functions
CNM801  CN201	Supply power from SMPS to Main Board.
CN2101  T-CON	The LVDS signal transfered from Main Board to Panel.
CNL803  CN1701	Main Board controls LED Driver for Local Dimming.

6-4. Cables

	Use	Main-SMPS	Main-Tcon	Function Assy
	Code	40",46",55" : BN39-01291A	46" : BN96-12723Q	46" : BN96-14056C
			55" : BN96-12723R	55" : BN96-14056D
		65" : BN39-01375A
			65" : BN96-14108E	65" : BN96-15474G

Photo

6-4

4. Troubleshooting

4. Troubleshooting

4-1. Troubleshooting

1.Check the various cable connections first.

•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.

2.Check the power input to the Main Board.

3.Check the internal patterns from the SVC option.

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

MAIN BOARD

T-CON

4-1

4. Troubleshooting

Simple flow chart of malfunction

Does the TV turn on?	Yes
No

Can you see anything	Yes
on the screen?
No

	Can you see	Yes
	OSD menu running on
	the screen?
	No

Can you see Digital

Check LVDS cable connected Channel broadcast ? Check the Power Cord to Main Board.

If necessary, replace the Main Board

No

Yes

Replace the Main Board

is any sound of TV when RF signal connected?

No

A5V appear at the pin 4 of CN1001?

Yes

B13V appear at the pin 13,15,17 of CN1001?

Yes

Please, contact Tech support

	Yes	Check LVDS	No
		cable connected.			Change the main board.
		If necessary replace the
		T-con board.

No		Check 18p cable.
		If necessary, replace the
		SMPS board.

No

Change the main board.

4-2

4. Troubleshooting

4-3

4. Troubleshooting

Troubleshooting about new functions

Problem

Possible Solution

• AllShare (General)

I see no device connected to AllShare.

•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.’

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.

•When a video is transmitted from Connected Home to a TV for the first 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.

A video that can be played on my cell phone	• Please check the resolution and display format provided by MediaPlay of the TV.
cannot be played on my TV.

I cannot resume playback of a video using Connected Home.

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

When I play a video through Connected	•	An 801.11b/g bandwidth network is used between a cell phone and a sharing
Home, I get intermittent picture loss.		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 (Notification)

Can all devices with the DLNA function be recognized through Notification?

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

Can I use all the services related to DLNA?

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

The notification screen that appears after a device connects disappears within a few seconds.

How can I access this connected device again?

•The DLNA Notification is only displayed when a device is first connected to a TV. To access the device again, please use the AllShare menu.

• AllShare (ScreenShare Client)

I cannot find the RUIS on my cell phone. 1. Check that the cell phone is connected to the wireless sharing device correctly.

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

3.Confirm the IP address and subnet mask to ensure that the cell phone and DTV are connected to the same network.

4.Check that the RUIS on the cell phone is enabled.

5.If the RUIS on the cell phone is enabled, please disable it and then enable it again.

4-4

4. Troubleshooting

Problem

Possible Solution

• AllShare (ScreenShare Server)

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

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

2.Run network test in the network setup menu and confirm that MAC Address, IP

Address, Subnet, Gateway, DNS Server and Gateway Ping each shows a success message.

3.In the network setup menu, check that the ScreenShare Client and ScreenShare

Server are on the same subnet.

-You can confirm 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 first 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 first 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.

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

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

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

Client.

•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.

4-5

4. Troubleshooting

Problem

Possible Solution

• Network Setup

How do I setup the network?

•Click the [Menu] button and open [Setup] to select [Network].

Configure wired or wireless network settings.

For details, please refer to the IB.

How do I check the network status?

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

•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.

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

1.Check that the network cable is connected to the TV correctly.

2.If the TV is connected correctly, check whether the IP address is automatic or manual.

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

Internet service provider.

4.If the IP is manual, check if the IP address is entered correctly.

(Here, the user should confirm if the manual IP address entered in is valid.)

cannot connect to a wireless network.

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

2.Search surrounding sharing devices to see if there is a sharing device with the 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.

3.If the IP address is set to automatic and you cannot connect to the sharing 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.)

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

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

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

2.Check if the user pressed the PBC button on the sharing device.

3.If there is another sharing device with WPS running nearby, a connection cannot be made. Please retry after 2 minutes.

4.Reset the sharing device and retry.

5.If the sharing device of the user is not Wi-Fi certified, it may not be able to connect using WPS.

The auto-configuring sharing device cannot be connected to automatically through a wireless dongle.

(Here, the user’s sharing device must support auto-configuration.)

1.Check if the sharing device of the user supports auto configuration.

(For a list of sharing devices, refer to the IB or website.)

2.If the sharing device of the user supports auto configuration, place the sharing 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.)

Although the TV is placed close to the AP	• Select [Menu]  [Setup]  [Network] and check if SWL is Off.
and the dongle is inserted into the TV, the
sharing device cannot be connected to using
auto-configuration.

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-configuration and a message that it is connecting is displayed only.

•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.

4-6

4. Troubleshooting

Problem

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-configuration and a message that it is connecting is displayed only.

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 find the sharing device. (May not be found in a search depending on the settings of the wireless connection.)

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

•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.

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

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

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

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

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

4-7

4. Troubleshooting

4-1-1. No Power

	Symptom	-- 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:
	Major	-- Check the internal cable connection status inside the unit.
	checkpoints	-- Check the fuses of each part.
		-- Check the output voltage of PD.
		-- Replace the Main Board.
	Caution	Make sure to disconnect the power before working on the PD board.

				No		check a connection power cable.
	When power on, check the sound of
	relay on?					P/N : BN96-12845B
		Yes
	Does proper Stand-By DC A5V appear			No		Change the Main Power assembly.
	at the PIN 4 of CN1001?
		Yes
	Does proper Main DC B18VS, B5V,			No
Diagnostics	B13V appear at the PIN 3, PIN 5,
	PIN13 of CN1001?
		Yes
	Does proper DC A3.3V appear at			No		Change the IC1014 or the Main Assy.
	the pin3 of IC1014?
		Yes
	Does proper DC B3.3V appear at			No		Change the IC1008, IC1003 or
	the pin8 of IC206, B9V appear at					the Main Assy.
	3pin of IC1003?
		Yes
				No		Change the IC1011, IC1005 or
	Does proper Valencia core
						the Main Assy.
	3.3V,1.1V appear at C7001,C7022?
		Yes
				No		Check a other function(No picture part).
	A power is supplied to panel
	appear at C9320?					Replace a LCD Panel.

4-8

4. Troubleshooting

Location (Main) - TOP

Location (Main) - BOTTOM

4-9

4. Troubleshooting

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

	Symptom	--	Audio is normal but no picture is displayed on the screen.
	Major	--	Check the PC source
		--	Check the IC7001(Valencia)
	checkpoints
		--	This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
	Caution	Make sure to disconnect the power before working on the PD board.

	No video
		Yes
					Input an analog PC signal.
	Check the PC source and check the		No
	connection of DSUB?				Check the connected cable.
		Yes
1	Does the signal appear at pin 14, 16, 12,		No		Change the PC cable.
	6, 1(R,G,B,H,V) of CN3011?				Change the main PCB assembly.
Diagnostics		Yes
2	Does the digital data appear at		No		Change the IC6001 or
	output of IC6001?				the main PCB assembly.
		Yes
	Check the LVDS cable?		No		Please, contact Tech support.
	Replace the LCD panel?

4-10

4. Troubleshooting

Location (Main) - TOP

Location (Main) - BOTTOM

4-11