Samsung UN40C8000XM User manual

LED-TV
SERVICEManual
TFT-LED TV Contents
Refer to the service manual in the GSPN (see the rear cover) for the more information.
1. Precautions
2. Product specications
3. Disassembly and Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
Chassis : N81B
Model : UN40C8000XM
UN46C8000XM
UN55C8000XM
UN65C8000XM
UN40C8000XM / UN46C8000XM
UN55C8000XM / UN65C8000XM

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.
© 2010 Samsung Electronics Co.,Ltd.
All rights reserved.
Printed in Korea
P/N: BN82-00978A-00

6-1
6. Wiring Diagram
6. Wiring Diagram
6-1. Wiring Diagram
46" / 55" / 65"
T-CON
SMPS
Woofer
Speaker
Function
Main Board
CN1701 CN2101
CNL801
CNM802
IR
Panel
CN302 CN601
CN301W
CN802S
POWER CORD
Speaker
CN201
Emitter
CON1
CNL803
CNL802

6-2
6. Wiring Diagram
6-2. Connector
CN2101(to T-CON)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
GND
GND
SW_PVCC
FRC_RESET
SDA
SCL
LVDS opt
H-Sync Out
Panel_WP
T_Con Check
NC
NC
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+
ROCLK-
GND
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)
1
2
3
4
R+
R-
L+
L-
CN301W(to Woofer)
1
2
3
4
SW+
SW-
SW+
SW-
CN601
1
2
3
4
5
6
IR
GND
A3.3V
LED_INDICAT
BUZZER
KEY1
7
8
9
10
11
12
KEKY2
NCL
A5V
NC
LED_CTRL
B5V
CN502(to HDMI1)
1
2
3
4
5
6
7
8
9
10
HDMI1_RX2+
DGND
HDMI1_RX2-
HDMI1_RX1+
DGND
HDMI1_RX1-
HDMI1_RX0+
DGND
HDMI1_RX0-
HDMI1_RXCLK+
11
12
13
14
15
16
17
18
19
DGND
HDMI1_RXCLK-
HDMI_CEC
DGND
HDMI1_DDC_SCL
HDMI1_DDC_SDA
DGND
HDMI1_5V
HDMI1_HPD
CN401(to PC_IN)
1
2
3
4
5
6
7
8
PC_RED
PC_GREEN
PC_BLUE
DGND
DGND
DGND
DGND
DGND
9
10
11
12
13
14
15
PC_5V
PC_IDENT
DGND
SDA_DOWN
PC_H_SYNC
PC_V_SYNC
SCL_DOWN
CN1403(to USB1)
1
2
3
4
USB0_VCC
USB0_DM
USB0_DP
DGND
CN1401(to USB2)
1
2
3
4
USB1_VCC
USB1_DM
USB1_DP
DGND

6-3
6. Wiring Diagram
CN503(to HDMI2)
1
2
3
4
5
6
7
8
9
10
HDMI2_RX2+
DGND
HDMI2_RX2-
HDMI2_RX1+
DGND
HDMI2_RX1-
HDMI2_RX0+
DGND
HDMI2_RX0-
HDMI2_RXCLK+
11
12
13
14
15
16
17
18
19
DGND
HDMI2_RXCLK-
HDMI_CEC
DGND
HDMI2_DDC_SCL
HDMI2_DDC_SDA
DGND
HDMI2_5V
HDMI2_HPD
CN504(to HDMI3)
1
2
3
4
5
6
7
8
9
10
HDMI3_RX2+
DGND
HDMI3_RX2-
HDMI3_RX1+
DGND
HDMI3_RX1-
HDMI3_RX0+
DGND
HDMI3_RX0-
HDMI3_RXCLK+
11
12
13
14
15
16
17
18
19
DGND
HDMI3_RXCLK-
HDMI_CEC
DGND
HDMI3_DDC_SCL
HDMI3_DDC_SDA
DGND
HDMI3_5V
HDMI3_HPD
CN501(to HDMI4)
1
2
3
4
5
6
7
8
9
10
HDMI4_RX2+
DGND
HDMI4_RX2-
HDMI4_RX1+
DGND
HDMI4_RX1-
HDMI4_RX0+
DGND
HDMI4_RX0-
HDMI4_RXCLK+
11
12
13
14
15
16
17
18
19
DGND
HDMI4_RXCLK-
HDMI_CEC
DGND
HDMI4_DDC_SCL
HDMI4_DDC_SDA
DGND
HDMI4_5V
HDMI4_HPD
CN201(to CNM802)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NC
NC
DET_5V
NC
PWM
DGND
B5V
NC
B13V
B13V
B13V
DGND
DGND
DGND
B5V
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
B5V
B5V
B5V
DGND
DGND
DGND
DGND
B12VS
B12VS
DGND
DGND
A5V
DGND
A5V
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

6-4
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
65" : BN39-01375A
46" : BN96-12723Q
55" : BN96-12723R
65" : BN96-14108E
46" : BN96-14056C
55" : BN96-14056D
65" : BN96-15474G
Photo

4-1
4. Troubleshooting
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
MAIN BOARD
T-CON

4-2
4. Troubleshooting
Simple ow chart of malfunction
Yes
No
No
Does the TV turn on?
Can you see anything
on the screen?
Yes
Can you see
OSD menu running on
the screen?
Check LVDS cable connected
to Main Board.
If necessary,
replace the Main Board
Yes
Can you see Digital
Channel broadcast ?
No
Replace the Main Board
Check the Power Cord
Yes
No
No
is any sound of TV
when RF signal
connected?
Yes
A5V appear at
the pin 4 of CN1001?
Yes
Check LVDS
cable connected.
If necessary replace the
T-con board.
No
Change the main board.
No Check 18p cable.
If necessary, replace the
SMPS board.
Yes
B13V appear at the
pin 13,15,17 of
CN1001?
No
Change the main board.
Please, contact Tech
support

4-3
4. Troubleshooting

4-4
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 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.
A video that can be played on my cell phone
cannot be played on my TV.
Please check the resolution and display format provided by MediaPlay of the 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
Home, I get intermittent picture loss.
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?
Only Samsung software and devices with the DLNA server function can be •
recognized through Notication.
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 notication screen that appears after
a device connects disappears within a few
seconds.
How can I access this connected device
again?
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.
AllShare (ScreenShare Client)•
I cannot nd the RUIS on my cell phone.
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
Possible Solution
AllShare (ScreenShare Server)•
I cannot nd the remote control service
provided by the ScreenShare Server from the
ScreenShare Client.
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."
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.

4-6
4. Troubleshooting
Problem
Possible Solution
Network Setup•
How do I setup the network? Click the [Menu] button and open [Setup] to select [Network].•
Congure 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.
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.)
cannot connect to a wireless network. 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).
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.
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.)
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.)
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.
Select [Menu] •  [Setup]  [Network] and check if SWL is Off.
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 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
Possible Solution
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.
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.)
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.
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.)
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).

4-8
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.-
Major
checkpoints
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.-
Caution Make sure to disconnect the power before working on the PD board.
Diagnostics
Does proper Main DC B18VS, B5V,
B13V appear at the PIN 3, PIN 5,
PIN13 of CN 1001 ?
Does proper DC A3.3V appear at
the pin3 of IC1014? Change the IC1014 or the Main Assy.
No
Yes
Does proper DC B3.3V appear at
the pin8 of IC206, B9V appear at
3pin of IC1003?
No
Yes
When power on, check the sound of
relay on?
Yes
No check a connection power cable.
P/N : BN96-12845B
Does proper Stand-By DC A5V appear
at the PIN 4 of CN1001?
No Change the Main Power assembly.
Yes
No
Yes
Change the IC1008, IC1003 or
the Main Assy.
Does proper Valencia core
3.3V,1.1V appear at C7001,C7022?
No
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.
No
Yes

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
Check the PC source-
Check the IC7001(Valencia)-
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.
Diagnostics
Change the PC cable.
Change the main PCB assembly.
No
Yes
Does the digital data appear at
output of IC6001?
No
Yes
No video
Yes
Check the PC source and check the
connection of DSUB?
No Input an analog PC signal.
Check the connected cable.
Yes
Change the IC6001 or
the main PCB assembly.
Check the LVDS cable?
Replace the LCD panel?
Please, contact Tech support.
No
Does the signal appear at pin 14, 16, 12,
6, 1(R,G,B,H,V) of CN3011?
1
2

4-11
4. Troubleshooting
Location (Main) - TOP
Location (Main) - BOTTOM

4-12
4. Troubleshooting
WAVEFORMS
1PC Input (V-Sync, H-Sync)
2LVDS Out (CLK + / -)

4-13
4. Troubleshooting
4-1-3. No Video (HDMI - Digital Signal)
Symptom Audio is normal but no picture is displayed on the screen.-
Major
checkpoints
Check the HDMI source-
Check the IC7001(Valencia)-
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.
Diagnostics
Change the HDMI cable.
Change the main PCB assembly.
No
Yes
Does the digital data appear at output of
IC3013_CH pin80~87(HDMI output)?
No
Yes
No video
Yes
Check the HDMI source and
check the connection of HDMI cable?
No Input an HDMI signal.
Check the connected cable.
Yes
Change the IC3013 or
the main PCB assembly.
Yes
Check the LVDS cable?
Check the T-con board?
Replace the LCD panel?
Please, contact Tech support.
No
Does the signal appear at
IC3013_CH pin1~6, 99, 100(HDMI1),
pin8~15(HDMI2), pin17~24(HDMI3),
pin26~33(HDMI4)?
Does the digital data appear at
pin 15~81 of CN9301?
No
Change the IC7001 or
the main PCB assembly.
3
4
5