REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Monday 11 March 2019

SAMSUNG PN42B450B1DXZA - PN50B450B1DXZA SERVICE MODE

SAMSUNG PN42B450B1DXZA - PN50B450B1DXZA SERVICE MODE


Service Instruction
Before performing service
1. Check if the measurement and test equipment is working properly.
2. Secure sufficient work space for disassembling the product.
3. Prepare a soft pad for disassembling the product.
 Service adjustment item after replacement of Board
<If adjustment equipment is available>
1.PDP Option of Factory Mode → set the Factory Data Type item as the suitable value of relevant model.
2. Adjust Calibration of Factory Mode for each mode.
3. Adjust White Balance of Factory Mode.
<If adjustment equipment is not available>
4.Write down the value of HDMI White Balance of Factory Mode before replacing Board.
5. PDP Option of Factory Mode → set the Factory Data Type item as the suitable value of relevant model.
6. Set the value of HDMI White Balance with the value written down before.
How to Access Service Mode
POWER OFF > MUTE > 1 > 8 > 2 > POWER ON
To Exit:
POWER OFF > POWER ON
3. Settings when entering Factory mode
- Sharp Screen (Dynamic), Color Tone (Cool1), Factory (Dynamic CE Off), DNIe(Off)
4. Adjustment Procedures
- Channel ▲ ▼ Key : Select an item.
- Volume right arrow left arrow Key : Adjust the value up or down.
- MENU Key : Save the changes to the EEPROM and return to the higher-level mode.
- Using the Numeric (0~9) keys, you can select a channel.
- Using the SOURCE key, you can switch AV modes.
The version of the firmware displayed at the bottom of the screen may differ and the firmware is subject to change for the improvement of product functions.
If you have adjusted the settings in Service Mode, you have to reset the product.
If you exit Service Mode without reset, DNIe vlaue keeps Off regardless of setting up the user.
Method of Color Calibration (AV)
1) Apply the NTSC Lattice (N0. 3) pattern signal to the AV IN 1 port
2) Press the Source key to switch to "AV1" mode
3) Enter Service mode
4) Select the "Calibration" menu
5) Select the "AV Calibration" menu.
6) In "AV Calibration Off" status, press the "▶" key to perform Calibration.
7) When Calibration is complete, it returns to the high-level menu.
8) You can see the change of the "AV Calibration" status from Failure to Success.
Method of Color Calibration (Component)
1) Apply the 720p Lattice (N0. 6) pattern signal to the Component IN 1 port
2) Press the Source key to switch to "Component1" mode
3) Enter Service mode
4) Select the "Calibration" menu
5) Select the "Comp Calibration" menu.
6) In "Comp Calibration Off" status, press the "▶" key to perform Calibration.
7) When Calibration is complete, it returns to the high-level menu.
8) You can see the change of the "Comp Calibration" status from Failure to Success.
 Method of Color Calibration (PC)
1) Apply the VESA XGA Lattice (N0. 21) pattern signal to the PC IN port
2) Press the Source key to switch to "PC" mode
3) Enter Service mode
4) Select the "Calibration" menu
5) Select the "PC Calibration" menu.
6) In "PC Calibration Off" status, press the "▶" key to perform Calibration.
7) When Calibration is complete, it returns to the high-level menu.
8) You can see the change of the "PC Calibration" status from Failure to Success.
 Method of Color Calibration (HDMI)
1) Apply the 720p Lattice (N0. 6) pattern signal to the HDMI1/DVI IN port
2) Press the Source key to switch to "HDMI1" mode
3) Enter Service mode
4) Select the "Calibration" menu
5) Select the "HDMI Calibration" menu.
6) In "HDMI Calibration Off" status, press the "▶" key to perform Calibration.
7) When Calibration is complete, it returns to the high-level menu.
8) You can see the change of the "HDMI Calibration" status from Failure to Success.
White Balance
Adjust spec.
1. Source : HDMI
2. Setting Mode : 1280*720@60Hz
3. Pattern : Pattern #92
4. Use Equipment : MIK-7256 (MSPG925L)
5. Work order
a . Connect HDMI (DVI) output terminal of MIK-7256 (MSPG925L) to the HDMI input in main set
b.Set the input to HDMI mode
c. Enter the White Balance menu of service mode
d. Contact CA-210 sensor to glass filter
e. Adjust the low light
- Adjust Sub-Bright (LBE) to set the 'Y' value
- Adjust R-Offset ('x') and B-Offset ('y') to the color coordinates.
# Do not adjust G-Offset data
f. Adjust the high light.
- Adjust Sub-Contrast (LBE) to set the 'Y' value
- Adjust R-Gain ('x') and B-Gain ('y') to the color coordinates.
# Do not adjust the G-gain data
USB Download Method
1. Copy the Upgrade Files into the path "T-CRLAUSC" in USB flash driver.
2. USB Download
1 Insert the USB Memory Stick to the USB port in Stand-by mode.
2 Turn the power on.
3 Press "MENU" and find "SW Upgrade" in Menu "SETUP".
4 Select the "SW Upgrade" from the menu.
5 Select "USB" from the menu.
6 The banner OSD "Scaning for USB..." is displayed.
7 The banner OSD "Upgrade version **** to version ****" is displayed.
Select "Yes".
8 The banner OSD "Upgrade version **** to version ****" is displayed.
It takes about 30 sec.
(Warning: Don't remove USB flash driver during upgrade.)
9 The banner OSD "Upgrade is completed" is displayed when the upgrade is
completed.
10 Remove the USB flash driver from PDP TV and check the program version.
Posted By: FRANK at 04:44
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