HYUNDAI LED
Model: H-LED15V27
Chassis / Version: CV59L-G
Panel: B156XW04 V.5
MainBoard: CV59L-G 7.01.1.CV59LG02R
IC MainBoard: CPU: TSUMV59XU-Z1, Spi Flash: 25Q32BS1G
Technical Specifications H-LED15V27
HYUNDAI H-LED15V27
General repair guidelines for TV LCD LED
Repair of electronic equipment usually begins with its external inspection and diagnosis of the malfunction. In this case, you should examine all the internal components of the HYUNDAI H-LED15V27 TV, as well as the external elements of the housing. Many visible changes in the state of the elements make it possible to determine the further direction of troubleshooting and localization of the defect. If ring cracks are detected in the soldering of the terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
In case of a power supply module malfunction, external manifestations may be different, for example, the HYUNDAI H-LED15V27 does not turn on at all and there is no indication of the control lights on the front panel. With the same symptoms, the stabilizer (converter) of the power supply to the control processor may be faulty. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip can also cause a breakdown of the power switch of the converter.
If there is no image when you turn on the HYUNDAI H-LED15V27, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the backlight LED circuit of the B156XW04 V.5 panel, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
When trying to detect a break in the LED lines, it should be taken into account that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
In cases of attempts to repair the motherboard CV59L-G, 7.01.1.CV59LG02R, it is necessary to check the operability of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
In some cases, they require checking or replacing (if necessary) the elements of the MB board (SSB) - CPU: TSUMV59XU-Z1, Spi Flash: 25Q32BS1G. In cases where the BGA processor is used, its malfunction is usually detected by the local heating method.
Owners and users of the HYUNDAI H-LED15V27 TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!
FIRMWARE FOR SPI FLASH -----------> HYUNDAI H-LED15V27, Main: CV59L-G, 7.01.1.CV59LG02R, Panel: B156XW04 V.5
The appearance of the MainBoard CV59L-G is shown in the figure below:
The MainBoard CV59L-G uses a multifunctional microprocessor type TSUMV59 with an integrated scaler and an external SPI Flash ROM type 25Q32 (4Mb).
It is advisable to begin repairing the motherboard by checking the + 5V voltage converters and the + 1.2V processor core power, as well as the + 3.3V linear voltage regulators and the 1.8V DDRAM processor internal RAM.
In the case of a working display backlight and the absence of an image, it is necessary to check the panel power (depending on the type, + 5V or + 12V), which can be measured directly on the LVDS connector. If, in the presence of all the supply voltages, the TV does not enter the operating mode, does not respond to the Remote Control and the control buttons, the SPI Flash software should be updated.
CV59L-G can be used in TVs:
HYUNDAI H-LED19V20 (Panel M185BGE-L10 Rev.C1), HYUNDAI H-LED24V20 (Panel M236H1-P01), HYUNDAI H-LED15V27 (Panel B156XW04 V.5).
Main features of the HYUNDAI H-LED15V27 device:
Installed matrix (LED-panel) B156XW04 V.5.
The required supply voltage for all nodes of the HYUNDAI H-LED15V27 TV provides a switching power supply.
MainBoard - the main board (motherboard) is a CV59L-G module, using CPU chips: TSUMV59XU-Z1, Spi Flash: 25Q32BS1G and others.
Additional technical information about the panel:
Brand: AUO
Model: B156XW04 V5
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.6 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 344.232x193.536 mm
Shape Style: Flat (PCBA Flat, Depth 3.4 ~ 4.0mm)
Surface: Glare (Haze 0%), Hard coating (3H)
Brightness: 200 cd / m²
Contrast Ratio: 500: 1
Display Colors: 262K (6-bit), CIE1931 45%
Response Time: 2/6 (Tr / Td)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 6-bit), 40 pins
Voltage: 3.3V
HYUNDAI H-LED15V27 TV with B156XW04 LCD, 15 "(38 cm) diagonal size in 16: 9 format. The required screen brightness of 200 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 500: 1. Edge LED backlighting is implemented in the LED-panel of this TV - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
The power of the sound system 4 W (2x2 W) provide two 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, component, VGA, HDMI, USB. An output for connecting headphones is provided. 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, 1360x768.
Overall dimensions: 375x278x120 mm.
TV Weight: 1.6 kg.
Attention! The panel B156XW04 V.5 of the HYUNDAI H-LED15V27 LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.