SAMSUNG LE40R86BD SERVICE MODE AND TROUBLE SHOOTING

SAMSUNG LE40R86BD SERVICE MODE AND TROUBLE SHOOTING

SAMSUNG LE40R86BD 

SERVICE MODE AND TROUBLE SHOOTING 

Entering Factory Mode

To enter to service mode press the remote keys in the following sequence

Power OFF > INFO >  MENU > MUTE > Power ON

If you have Factory remote – control

PICTURE ON > DISPLAY > FACTORY
- The buttons are active in the service mode.
1. Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left Arrow Right, Menu, Enter, Number Key(0-9)
2. Function - Control Key : Power, CH +, CH -, VOL +, VOL -, Menu, TV/VIDEO(Enter)

White Balance - Calibration
If picture color is wrong, do calibration first.
Equipment : CA210, Patten : chess pattern
Execute calibration in Factory Mode
Source AV : PAL composite, Component : 1280*720/60Hz
PC : 1024*768/60Hz

White Balance - Adjustment
If picture color is wrong, check White Balance condition.
Equipment : CA210, Patten : Flat W/B Pattern
Adjust W/B in Factory Mode
Sub brightness and R/G/B Offset controls low light region
Sub contrast and R/G/B Gain controls high light region
Source AV : PAL composite, Component : 1280*720/60Hz
HDMI[DVI] : 1280*720/60Hz

[ Test Pattern : MIK K-7256 PAttern #92 ]
*Color temperature
1500K +/-500, -6 ~-20 MPCD
*Color coordinate
H/L : 267/263 +/- 2 35.0 Ft +/- 2.0Ft
L/L : 270/260 +/- 3 1.5 Ft +/- 0.2Ft

Conditions for Measurement
1. On the basis of toshiba ABL pattern : High Light level (57 IRE)
- INPUT SIGNAL GENERATOR : MSPG-925LTH
* Mode NO 2 : 744X484@60 Hz
NO 6 : 1280X720@60 Hz
NO 21 : 1024X768@60 Hz
* Pattern NO 36 : 16 Color Pattern
NO 16 : Toshiba ABL Pattern
2. Optical measuring device : CA210 (FL)
Please use the MSPG-925 LTH generator for model LE26M51B/LE32M51B/LE40M51B/LE46M51B.
Method of Adjustment
1. Adjust the white balance of AV, Component and DVI Modes.
(AV Component)
a) Set the input to the mode in which the adjustment will be made
(RF DTV PC DVI).
* Input signal - VIDEO Mode : Model #2 (744*484 Mode), Pattern #16
- DTV,DVI Mode : Model #6 (1280*720 Mode), Pattern #16
- HDMI Mode: Model #6(1280*720 Mode), Pattern #16
b) Enter factory color control, confirm the data.

c) Adjust the low light. (Refer to table 1, 2 in adjustment position by mode)
- Adjust sub - Brightness to set the 'Y' value.
- Adjust red offset ('x') and blue offset ('y') to the color coordinates

* Do not adjust green offset data.
d) Adjust the high light.
- Adjust red gain ('x') and blue gain ('y') to the color coordinates.
* Do not adjust the green gain and sub-contrast (Y) data.

d) Adjust the high light.
- Adjust red gain ('x') and blue gain ('y') to the color coordinates.
* Do not adjust the green gain and sub-contrast (Y) data.

Software Upgrade
How to Update Flash ROM
1. Install the Flash Downloader
ConnectSet(Service Jack)and Jig Cable to execute Program Update.

2. Flash Downloader program update
-Before Turning on the set,Click "connect"which is under of OSD Screen!
-Turn on the Set.

Troubleshooting

No Power

Check a connection a power cable. >  LAMP off, power indicator LED red color?

Does proper DC 13V appear at JP845? > Change a Assy PCB Power.

Does proper DC A3.3V, A5V appear at C854, C1166_LCD? > Check a IC1112, Q1103. Change a main PCB ass'y.

Does proper DC 5V, 3.3V, 1.2V appear at C1153, C1178, C1170? > Check a IC1111, IC1102, IC1113. Change a main PCB ass'y

A power is supplied to set? > Check a other function. (No picture part) Replace a lcd panel.

TIP: How to drive the circuit by force when LCD panel Lamp is faulty.
- It is available to drive the circuit when the pin of 2 in Main_Power_control CN1101 connect the pin of 4

No Video (Analog PC)

Check a PC source and check the connection of DSUB cable?  > Input a analog PC signal and connected cable(DPMS).
Does the signal appear at C2078,C2077,C2079(R, G, B) of IC2001? > PC cable. Change a PC cable. Change a main PCB ass'y.
Does the digital data appear at the output of LVDS (RA2008~2013)? > Check a IC2001 Change a main PCB ass'y.

Check a LVDS cable? > Replace a lcd panel? Please, Call to Samsung Co. LTD.

No Video (Digital-HDMI)

Check the connection of HDMI cable?  > Input a HDMI cable.

Does the digital data appear at R1333_UX-R1340_UX? > Check a a IC1405 Change a main PCB ass'y.
Does the digital data appear at output of IC4001 LVDS(RA2008~2013)? >  Check a IC1405 Change a main PCB ass'y.

Check a LVDS cable? > Replace lcd panel? Please, Call to Samsung Co. LTD.

No Picture (Tuner_CVBS)

Power Indicator is off. Lamp on, no picure. > Connect the RF cable and check RF signal.
Dose the signal appear at R2207? >  Check a B+ voltage (#3 of Tuner) 5V, change a main PCB ass'y
Does the signal appear at C2085 of IC2001?  > Change a main PCB ass'y.
Does the digital data appear at output of RA2008~2013? >  Check a IC4001. Change a main PCB ass'y.
Check a LVDS cable? > Replacea lcd panel? Please, Call to Samsung Co. LTD.
No Sound

Connect a sound cable. control a volume. > Picture is display, no sound.

Does the signal appear at Pin #10, #12, #13, #9 (I2S_CLK, I2S_SCLK, I2S_LRCLK, I2S_DATA) of IC1202? >  Check a connection harness and headphone jack./Side AV Check Sound Processor IC1202 (SGTV5810).

Check the DC 12V of IC1203? >  Check a B12V Line. Change a main PCB ass'y.

Does the signal appear at Pin #47 or 48, #53 or 54(CH1_L, R Sound) And Pin #36 or 37, #30 or 31 (CH2_L, R Sound) of IC1203? >  Change a main PCB ass'y

Replace the speaker ass'y?