Technical description and composition of the IZUMI TLE15H311B TV, type of panel and applicable modules. The composition of the modules.IZUMI LED
Model: TLE15H311B
Panel: LP154WE3-TLB1 // LP154WP4-TLA1
LED driver (backlight): HQ-LED12A
PWM LED driver: 9001 (16),
MOSFET LED driver: 4946 (8),
Power Supply (PSU): FJ-SW1202000E 12v 2a adapt // SQS48W12P-01 12v 4a
PWM Power: SM8013C,
MOSFET Power: SVD4N65F
MainBoard: T.VST26.12B 11244 1AL3158-000002995 // T.VST29.A3B
IC MainBoard: TSUMV26KE-LF, YD1517E (18), MP14620N, ISSI 016, 250800VS16, 25Q80BV, 24C32
Tuner: ET-6T1E-EF108WR3
Control: IZUMI TLE19H300B
Technical Specifications TLE15H311B
IZUMI TLE15H311B
General repair guidelines for TV LCD LED
IZUMI TLE15H311B TV, as well as many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a significant clue in the assumptions about the causes and consequences of the malfunction.
In cases when the IZUMI TLE15H311B TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turning on, the FJ-SW1202000E 12v 2a power supply module is most likely to be faulty adapt // SQS48W12P-01 12v 4a or there is no processor power on the motherboard (a typical defect of some IZUMI TVs). Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
The reasons for the breakdown of the power switch in pulsed power supplies (IIPS) can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the SM8013C PWM controller, or broken resistors in its bundle.
In cases where the IZUMI TLE15H311B TV has lost an image, and the sound is there and all other functions are operational, there is a possibility of a malfunction of the LED driver (converter for powering the backlight LEDs of the panel LP154WE3-TLB1, LP154WP4-TLA1). When you turn on the TV, the image may appear briefly and disappear immediately. It must be borne in mind that with such manifestations the LEDs themselves also fail.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
Motherboard KB-6160 MS-1E198407 LP154WE3-TLB1, 1AL3158-000002995, tun ET-6T1E-EF108WR3 must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
If it is not possible to replace the MB board (SSB), you need to check the health of its elements - TSUMV26KE-LF, YD1517E (18), MP14620N, ISSI 016, 250800VS16, 25Q80BV, 24C32. Defective components should be replaced.
Attention to users! Self-repair of the IZUMI TLE15H311B TV without the appropriate qualifications and experience can lead to its complete non-repairability!
FIRMWARE FOR SPI FLASH -----------> IZUMI TLE15H311B , Main: T.VST26.12B 11244, Panel: LP154WE3-TLB1
The appearance of MainBoard T.VST26.12B is shown in the figure below:T.VST26.12B
Main features of the IZUMI TLE15H311B device:
The matrix (LED panel) LP154WE3-TLB1 or LP154WP4-TLA1 is installed.
To power the backlight LEDs, the HQ-LED12A LED driver is used, controlled by the 9001 (16) PWM controller. As power elements of the LED driver, keys of type 4946 (8), are used.
The necessary supply voltages for all nodes of the IZUMI TLE15H311B TV are generated by the FJ-SW1202000E power module or its analogs using SM8013C microchips and power switches of the SVD4N65F type.
MainBoard - the main board (motherboard) is a T.VST26.12B module, using TSUMV26KE-LF, YD1517E (18), MP14620N, ISSI 016, 250800VS16, 25Q80BV, 24C32 and others.
The ET-6T1E-EF108WR3 tuner provides TV reception and channel tuning.
Information from an alternative source:
IZUMI TLE15H311B
Panel Type (Matrix): LP154WP4-TLA1,
Motherboard: 1AL3158-000002995, CPU - TSUMV26KE-LF, U2- MP14620N, U3- Winbond 25Q80BVSIG, U4 - U6-LM117B, U20-432A-2GLI (24C32), U32-2GL,
LED Driver: HQ-LED12, PWM: HQ9001
PSU: External, 12V, 2A
Remote control: TLE19H300B
Additional technical information about the panel:
Brand: LG Display
Model: LP154WE3-TLB1 3 Compatible model
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.4 inch
Resolution: 1680x1050, WSXGA +
Display Mode: TN, Normally White, Transmissive
Active Area: 331.34x207.09 mm
Shape Style: Flat (PCBA Flat, Depth 3.4 ~ 4.0mm)
Surface: Antiglare
Brightness: 300 cd / m²
Display Colors: 262K (6-bit)
Response Time: 16 (Tr + Td)
Frequency: 60Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (2 ch, 6-bit), 40 pins
Voltage: 3.3V