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 !

Thursday, 28 March 2019

SANYO LCE32FX LED TV – HISENSE MSD309PX – SERVICE MODE – SOFTWARE UPDATE – POWER SCHEMATIC

SANYO LCE32FX LED TV – HISENSE MSD309PX – Service Mode – Software Update – Power  Schematic

SANYO LCE32FX LED TV [PAL - NTSC]– HISENSE MSD309PX [PAL - NTSC]  – Service Mode – Software Update – Power and Back-light Inverter Circuit Diagram - SMPS voltage outputs
USED ICS - NCP1271 SMPS CONTROLLER – OZ9902 BACK-LIGHT INVERTER CONTROLLER
HOW TO ENTER FACTORY (SERVICE) MODE
With factory RC (remote control)
1. Press “M” button and enter factory mode.
2. Press “Menu” button and enter factory OSD menu.
3. Press “CH+”/“CH-” button select the function menu, press “VOL+”/“VOL-” enter the selected function menu. Press “VOL+”/“VOL-” button adjust values in the menu.
4. Press “M” button to exit factory mode in the factory OSD menu. When TV outgoing factory, user cannot enter factory OSD menu with Factory Remote
Note: In the “Factory Menu”, item “Function”>”TOFAC” ,you can select “M” or “U”, default is “U”.
> M-Means you can enter factory mode with factory RC or user RC.
>> U-Means you can enter factory mode only with user’s RC. 2. Mode “M” is only used for factory production.
With user’s RC
Power on the TV.
1. Press “Menu” button and call up User OSD Menu.
2. Select“ Sound” Menu > “Balance” item.
3. Press number key 1> 9 > 6 > 9 in sequence when “Balance” item is focused.
If necessary, re-do number keys.
4. Factory OSD appears.
Press the standby button then AC turn off and restart the TV, which can exit factory OSD menu.
Software can update with USB device
1. Copy the “*.BIN” file such as “MERGE.BIN” to the root directory of a USB disk.
2. Insert the USB disk into the USB slot of the TV SET.
3. Press “Menu” button and call up User OSD Menu, choose "Channel">”Software Update(USB)” item.
4. Press “OK”, it will show a confirm message box, Press [◀] button to select “yes” in the confirm message box, to start automatic update.
5. Then it will update the software automatically, don’t power off during the updating process.
6. After the software is successfully upgraded, TV SET will restart automatically.
Note: 1. In some TV SET, ”Software Update(USB)” item maybe in “OPTION” menu. 2.After updating, you must confirm the software version in the “Factory Menu” and you'd better do " UnProtected Clear" in the “Factory Menu”.
POWER [SMPS] BOARD SCHEMATIC
The Power board have 5V&12V output. Other voltages are converted from 5V & 12V.
a Vcc-Panel is converted by N1 from 12V，5V-Tuner converted by N21 from 12V supplies to tuner.
b 3.3Vstb is converted from 5V-stb by N2, It’s standby power supply for main IC (N7), Keyboard, Remote board ,Flash（ N11） and HDMI CEC.
c 12V supplies for Amplifier（ N17 R2A15120FA） .
d 5VAIN supplies for main IC , Headphone and USB
e 3.3VA is converted by N4 from 5VAIN, It supplies for N39(main IC)， N8(HDCP),N9(EEPROM).
f 2.5VA is converted by N5 form 5VAIN.
g 1.32V is converted by N3 from 5VAIN.
h 1.8VA is converted by N6 from 5VAIN.
i 3.3V_Demod is converted by N18 from 5VAIN, 1.2V_Demod is converted by N19 from 3.3V_Demod.


Board 1 (Panel has not 120HZ refurbish ratio)
Board 2 (Panel has 120HZ refurbish ratio)
[Image is reference only. Different models refer to the actual units to determine the boards.]
Click on the Pictures to Zoom In
Posted By: FRANK at 06:37
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