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!

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Wednesday 5 August 2020

REPAIRING / SERVICING TV SUPRA STV-LC32510WL

Technical description and composition of the SUPRA STV-LC32510WL TV, panel type and modules used. The composition of the modules.
SUPRA LED
Model: STV-LC32510WL
Chassis / Version: V1L11
Panel: HK315WLEDM // HK315LEDM
T-CON: HV320WX2-201 // LC320EXJ-SEE
LED driver (backlight): integrated into PSU
PWM LED driver: OB3362RP
MOSFET LED driver: AOD4454
Power Supply (PSU): HKC-PL05 REV 1.0 // HKL-320201
PWM Power: NE1101B
MainBoard: T.MS18VG.72 T.VST59.A5 // CV59SH-J // TP.VST59S.PB702
IC MainBoard: CPU: TSUMV59XE, TPA3110LD2, Flash Winbond: 25Q32
Tuner: CDT-3NP5I1-10
STV-LC32510WL Specifications
SUPRA STV-LC32510WL
General recommendations for TV LCD LED repair
One of the most popular models, produced in different assembly versions - V1L11, V1M01, V2M11, V2M12, V2N02, V2N04, V2N05, V2N09 and others.
The main boards (MainBoard) T.MS18VG.72 T.VST59.A5 or CV59SH-J, as well as mono chassis TP.VST59S.PB702 were used.
LCD panels were used mainly with a direct matrix Direct LED, for example, HV320WX2-201, ST3151A05-8, ST3151A04-7, but there were versions with an edge (Edge) LC320EXN-SEE1.
The backlight was mounted in housings HK315WLEDM-BH28H, HK315WLEDM-EH6GH, HK315WLEDM-EH5AH, HK315LEDM-BHA7H, HK315LEDM-OHI1H and others.
If STV-LC32510WL does not turn on, the power module may be faulty. Repair of HKC-PL05 or HKL-320201 units is usually simple and there is no need to consider it in detail in this article.
When the SUPRA STV-LC32510WL TV does not have an image, but there is sound, or the image appears and immediately disappears, there is a high probability of a panel backlight malfunction, more often it is an open circuit in the LED circuit.
Usually, it becomes necessary to disassemble the panel to check the health of the LEDs, as well as the contact connections in the connectors and solders.
To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter; a voltage of several tens of volts is required.
Replacing LEDs or strings with a subsequent reduction in current is a common practice for modern LED TVs with Direct LED backlighting and is detailed in many repair forums.
Repair or diagnostics of the T.MS18VG.72 motherboard, in case of its malfunction, should start with checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software).
In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - CPU: TSUMV59XE, Flash Winbond 25Q32 which may need to be replaced with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its pins with the board (indicated by local heating).
Remember! Attempts to self-repair the SUPRA STV-LC32510WL TV by users without appropriate qualifications and the necessary experience can lead to serious negative consequences!

 DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   SUPRA STV-LC32510WL, Main: T.MS18VG.72, Panel: HK315WLEDM 

 model SUPRA STV-LC32510WL Ver. V2M11, V2M12, Main: CV59SH-J.
Panel: HK315WLEDM-HHZ4H or LC320EXN, T-CON: 19100209 MDK336V-0W.
Power: HKL-320201 6003010132.

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   SUPRA STV-LC32510WL V2M12, Main: CV59SH-J, Panel: HK315WLEDM-HHZ4H or LC320EXN 


 DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   SUPRA STV-LC32510WL, V2N09 Main: TP.VST59S.PB702, Panel: HK315LEDM-OHI1H



To reduce the backlight current in LED drivers with OB3362RP (TSOP16) controller, increase the total resistance of the resistors from pin 5 (ISET) to the case. The maximum current in each of the four channels (in milliamperes) for the resistor Rset (in kilo-ohms) is determined from the ratio 3000 * 1.2V / Rset.
https://1.bp.blogspot.com/-ZHd1Kf7AzcY/Xylr58ymirI/AAAAAAABDAc/JFdpt7OM1tMOsFMUbW7sDdzOq3hBjNHiACK4BGAYYCw/s1600/CV59SH-J_DCE.jpgAdditional MainBoard Repair
The MainBoard CV59SH-J is shown in the figure below:
CV59SH-J
External view of the power supply
Main features of SUPRA STV-LC32510WL device:
Installed matrix (LED panel) HK315WLEDM or HK315LEDM.
Matrix control uses the HV320WX2-201 Timing Controller (T-CON).
A converter combined with a power supply is used to power the backlight LEDs, and is controlled by the OB3362RP PWM controller. The keys of the AOD4454 type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the SUPRA STV-LC32510WL TV is carried out by the HKC-PL05 power module, or its analogs using NE1101B microcircuits.
MainBoard - the main board (motherboard) is a T.MS18VG.72 module, using CPU chips: TSUMV59XE, TPA3110LD2, Flash Winbond: 25Q32 and others.

The CDT-3NP5I1-10 tuner provides reception of television programs and tuning to channels.
LED TV SUPRA STV-LC32510WL with LCD HK315WLEDM, 32 "(81 cm) 16: 9. depending on the illumination of the areas in the scene.This model uses an LED-panel with an edge arrangement of backlighting LEDs - Edge LED.It is possible to view broadcasts and films and images in high quality HD at a resolution of 1366x768 pixels in the standard graphic resolution 720p (HD Ready). high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC Graphic processing and digital signal shaping occurs in 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards Supported multimedia file formats: MP3, MKV, JPEG.
Speaker power 12 W (2x6 W) is provided by two speakers. The NICAM STEREO audio processing system is used.

External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, VGA, HDMI x3, USB. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV in operating mode from the network is 60 watts.
Overall dimensions: 738x495x209 mm.
TV weight: 6.6 kg.
Attention! The HK315WLEDM panel of the SUPRA STV-LC32510WL LED TV is an expensive and unreliable element.
Do not allow any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV non-repairable.

Posted By: FRANK at 05:35
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