Technical description and composition of the ROLSEN RL-19E1501T2C TV, panel type and modules used. The composition of the modules.ROLSEN LED
Model: RL-19E1501T2C
Chassis / Version: T.SIS231.T65
Panel: V185BJ1-PE1
LED backlight: 48LED MKN-LED185A-48-A01
LED driver (backlight): MKN5350_V1.5
Power Supply (PSU): Adapter
PWM Power: PWM
MainBoard: T.SIS231.T65
IC MainBoard: W24Q64BSIG
Tuner: SI2T6Q
RL-19E1501T2C Specifications
ROLSEN RL-19E1501T2C
General recommendations for TV LCD LED repair
If the TV does not turn on, no indicator lights are on or blinking, there are no sounds when turned on, not the slightest sign of operability - the most likely problem is the power module. In general, first of all, it is necessary to check the electrolytic capacitors of the filters of the secondary rectifiers and the fuse at the mains input. If it is cut off, then the diodes of the rectifier bridge and the key transistor of the converter, which can be located either on a separate heatsink or integrated with a PWM controller into a common microcircuit, should be checked for a breakdown of PN junctions. Options are possible.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (SMPS) it does not fail by itself without reasons that should be looked for by checking other elements of the primary circuit - electrolytic capacitors, PWM controller PWM, which can be checked only by replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If, when ROLSEN RL-19E1501T2C is turned on, there is no image, or it appears and immediately disappears, but there is sound, most likely there is a malfunction in the V185BJ1-PE1 panel backlight LED circuit, or in the LED driver node - their power converter.
The lack of backlighting often occurs due to an open circuit in the LED circuit. It becomes necessary to disassemble the panel and check the LEDs themselves, as well as the contact connections in the connectors and the ration of the connector pins.
It is impossible to check the LED bars for a break without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light one 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off, or pierced in the K / Z.
In cases of an attempt to repair the T.SIS231.T65 motherboard, it is necessary to check the operability of the linear stabilizers and power converters of its microcircuits and, if possible, update the software (software). BGA chips can sometimes be diagnosed by local heating.
In some cases, it is necessary to check or replace (if necessary) elements of the MB (SSB) board - W24Q64BSIG. In cases where a BGA processor is used, its malfunction is usually detected by the local warm-up method.
If the TV operates normally from external devices, but does not tune into TV channels, the SI2T6Q tuner may be faulty. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the reason for the inoperability of the tuner may be a software failure.
Attention to users! Self-repair of the ROLSEN RL-19E1501T2C TV without proper qualifications and experience can lead to its complete non-repairability!
The appearance of the MainBoard T.SIS231.T65 is shown in the figure below:T.SIS231.T65
T.SIS231.T65 can be used in TVs:
DNS M24DM8 (Panel M236HGE-L20 ReV.C1), DNS 22AE7000 (Panel CX215LEDM), ERISSON 28LEP91 (Panel st2751a01-1), ROLSEN RL-19E1501T2C (Panel V185BJ1-PE1), RUBIN RB-22SE5FT2C (Panel LM215DA-T01), RUBIN RB-22SE9FT2C (Panel M215HTN01.1), SHIVAKI STV-24LEDGR9 (Panel M236HGE-L20 Rev.C1), SHIVAKI STV-24LEDGW9 (Panel M236H3-LA3), SHIVAKI STV-24LED12 (Panel M236HGE-P01), THOMSON T24E09DU-01B (Panel V236BJ1-P03 (C1)).
Main features of the ROLSEN RL-19E1501T2C device:
Installed matrix (LED panel) V185BJ1-PE1.
The MKN5350_V1.5 LED driver is used to power the backlight LEDs.
To power all the internal nodes of the ROLSEN RL-19E1501T2C TV, an external adapter type is used using PWM microcircuits.
MainBoard - the main board (motherboard) is a T.SIS231.T65 module, using W24Q64BSIG microcircuits and others.
The SI2T6Q tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V185BJ1-PE1
Type: a-Si TFT-LCD, CELL
Diagonal size: 18.5 inch
Resolution: 1366x768, WXGA
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 409.8x230.4 mm
Surface: Antiglare (Haze 1%)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 5.0% (with Polarizer)
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit)
Response Time: 9.0 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
ROLSEN RL-19E1501T2C TV with LCD V185BJ1-PE1, 19 "(48 cm) 16: 9. The LED panel of this TV is equipped with edge LED backlighting.It is possible to view images in high quality HD at a resolution of 1366x768 pixels in a graphic resolution of 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM , NTSC Graphic processing and digital signal shaping takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i Supported media file formats: MP3, WMA, MPEG4, Xvid, MKV, JPEG.
Speaker power 6 W (2x3 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, VGA, HDMI, USB. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The power consumed by the TV in operating mode from the mains is 36 W.
Dimensions: with stand 440x314x169 mm, without stand 440x277x52 mm.
TV weight: 2.9 kg.
Attention! The panel V185BJ1-PE1 of the ROLSEN RL-19E1501T2C LED TV is an expensive and unreliable element.
Do not allow any impact 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 unrepairable.
