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, 22 April 2020

REPAIR / SERVICING TV ELENBERG CTV-1515

Technical description and composition of the ELENBERG CTV-1515 TV, panel type and applicable modules. The composition of the modules.
ELENBERG
Model: CTV-1515
Panel: HT150X02
Inverter (backlight): BB21457D 3835C V1.0
PWM Inverter: BIT3193 // BIT3713
MOSFET Inverter: AP4511GM
Trans Inverter: NIA19LES018
Power Supply (PSU): 2956C ver2.0
PWM Power: FSCM0765R
MOSFET Power: FDS9435 AP1513
Mainboard: 3671C
IC MainBoard: FLIY8125-LF 24C32AN W39L040A TDA1517P, MSP3415G 4052 AT49BV040B AP4511 FLY8125-LF
Tuner: MPE05-1-E M09WPP-1P-E
Control: RC42C (IRC-123E, Code 111)
Technical Specifications CTV-1515
ELENBERG CTV-1515
General recommendations for repairing TV LCD
Possible manifestations of defects
- The ELENBERG CTV-1515 TV does not turn on, does not respond to the remote control and buttons on the control panel, and does not blink with any indicators.
In most of these cases, the 2956C main switching power supply is faulty. It is necessary to measure its secondary output voltages, and if they are absent, check the operability of the power switches (FDS9435 AP1513) of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the elements of the primary circuit, the main fuse usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. PWM chip FSCM0765R can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, you must ring in its converter power keys for breakdown and secondary windings of transformers for an open.
If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after they are finished, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the 3671C motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Verification or replacement of elements FLIY8125-LF 24C32AN W39L040A TDA1517P, MSP3415G 4052 AT49BV040B AP4511 FLY8125-LF requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
Before replacing the tuner MPE05-1-E M09WPP-1P-E, if there is no tuning for the channels, first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
TV users and owners need to remember that attempts to self-repair an ELENBERG CTV-1515 TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!

 SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    ELENBERG CTV-1515



 Main features of the ELENBERG CTV-1515 device:
Installed matrix (LCD panel) HT150X02.
The BB21457D inverter is used to power the backlight lamps, it is controlled by the BIT3193 // BIT3713 PWM controller. The transformer NIA19LES018 is installed in the inverter converter. As power elements of the inverter, keys of the type AP4511GM are used.
The necessary supply voltages for all nodes of the ELENBERG CTV-1515 TV are generated by the 2956C power supply module or its analogs using FSCM0765R microcircuits and power switches of the FDS9435 AP1513 type.
MainBoard - the main board (motherboard) is a 3671C module using FLIY8125-LF 24C32AN W39L040A TDA1517P microchips, MSP3415G 4052 AT49BV040B AP4511 FLY8125-LF and others.
Tuner MPE05-1-E M09WPP-1P-E provides the reception of television programs and tuning to channels.
Information from an alternative source:
Elenberg CTV-1515
Motherboard: 3671C, CPU - FLY8125-LF, Memory - 24C32AN, Sound - TDA1517P, Stereo - MSP3415G B8 V3, Tuner - M09WPP-1P-E, Other ICs - W39L040AP70Z
Invertor: 3835C
PSU: 2956C, SMPS - FSCM0765R, Other ICs - 4511GM, BIT3713
Remote control: - RC42C (IRC-123E, code 111)
Additional technical information about the panel:
Brand: BOE
Model: HT150X02-100
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.0 inch
Resolution: 1024x768, XGA
Display Mode: TN, Normally White, Transmissive
Active Area: 304.128x228.096 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 500: 1
Display Colors: 16.2M (6-bit + FRC), CIE1931 60%
Response Time: 2/6 (Tr / Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 20 pins
Voltage: 3.3V
ELENBERG CTV-1515 TV with an LCD display, diagonal size 15 "4: 3 format. The brightness of the screen 250 cd / m² is provided by backlighting with CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 450: 1. The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation takes place in the standards 480i, 480p, 576i, 576p. Stereo sound is realized by two built-in speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, S-Video, component, VGA. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
Overall dimensions: With a support 803x630x280 mm, Without a support 695x494x129 mm.
Attention! The LCD TV screen ELENBERG CTV-1515 is its most expensive and most fragile component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!
Posted By: FRANK at 06:55
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