Technical description and composition of the ROLSEN RL-32L1003 TV, panel type and modules used. The composition of the modules.ROLSEN LED
Model: RL-32L1003
Chassis / Version: RSAG7.820
Panel: HE315CH-B12, BE315DH-IPS12
T-CON: RSAG7.820.4574 verA N9 1.8V TPS65161A HLE-2632WB,
LED driver (backlight): HLE-2632WB TU25C109-1 C1
PWM LED driver: OZ7942GH
MOSFET LED driver: K3342
Power Supply (PSU): RSAG7.820.2317 / ROH
PWM Power: NCP1271
MOSFET Power: BP30B16
MainBoard: HFT2-8C6 / V116H roh, RSAG7.820.4568 / ROH VerA, LEDN32K16A
IC MainBoard: MP1482DS (8), Z1021I (8)
Control: ER-31607R
RL-32L1003 Specifications
ROLSEN RL-32L1003
General recommendations for TV LCD LED repair
ROLSEN RL-32L1003, like other TVs, it is advisable to start repairing with a careful examination of the external and internal elements and modules. Often, based on external signs and the nature of damage to elements, it becomes possible to draw some conclusions and determine a further algorithm for searching for a defect before taking the necessary measurements at control points. Charred paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering on the leads of heating elements or transformers can often suggest the causes of a defect and possible consequences.
In the case when the RL-32L1003 does not turn on, does not respond to the remote control and front panel buttons, does not blink lights and does not show any signs of operability, the RSAG7.820.2317 / ROH power supply module is probably faulty in this case. If it is working properly with such manifestations, it is necessary to check the processor power regulator (converter) on the motherboard.When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the secondary rectifier filter and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module - rectifier diodes and BP30B16 transistors in the primary circuit.
As a rule, switches in switching power supplies (SMPS) are quite reliable and rarely fail without reasons that should be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM microcircuit is checked by replacing it with a known good one.
If the ROLSEN RL-32L1003 TV has no picture, but there is sound, a malfunction is likely in the LED backlight circuits of the HE315CH-B12, BE315DH-IPS12 panel. It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for an overestimated ESR.
In most cases of lack of backlighting, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or more LEDs do not work in one line, then they are broken and should be replaced.
It should be remembered that it is not possible to determine an open circuit in the LED lines without disassembling the panels using 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.
If the motherboard HFT2-8C6 / V116H roh, RSAG7.820.4568 / ROH VerA, LEDN32K16A is faulty, first of all it is necessary to check all linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes it is possible to check the serviceability of MB only by replacement.
Complicated repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements MP1482DS (8), Z1021I (8). Malfunctions in BGA chips are usually easy to detect by warm-up.
Attention to users! Self-repair of the ROLSEN RL-32L1003 TV without proper qualifications and experience can lead to its complete non-repairability!
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> ROLSEN RL-32L1003, Main Board: RSAG7.820.4568/ROH VER.A Spi Flash: MX25L1608D, Tuner: HFT2-8C6/V116H/ROH, T-Con: RSAG7.820.4574/ROH VER.A, Power+Inverter: RSAG7.820.2317/ROH
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> ROLSEN RL-32L1003, Main Board: AS-MST6M182VG-LE1, SPI Flash: MX25Q32BVSIG, Panel: HV320WXC-300
Installed matrix (LED panel) HE315CH-B12, BE315DH-IPS12.
Matrix control uses the Timing Controller (T-CON) RSAG7.820.4574.
To power the backlight LEDs, the HLE-2632WB LED driver is used, controlled by the OZ7942GH PWM controller. K3342 keys are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-32L1003 TV is carried out by the RSAG7.820.2317 power module, or its analogs using NCP1271 microcircuits and BP30B16 type power switches.
MainBoard - the main board (motherboard) is an HFT2-8C6 module, using MP1482DS (8), Z1021I (8) and others.
Additional technical information about the panel:
Brand: Hisense
Model: HE315CH-B12
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 17%), Hard coating (2H)
Brightness: 360 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 91%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LIPS)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
ROLSEN RL-32L1003 TV with LCD HE315CH-B12, 32 "(81 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, 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 x3, component, SCART, RGB, VGA, HDMI x2, 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.
The power consumed by the TV in operating mode from the network is 60 watts.
Dimensions: with stand 772x560x220 mm, without stand 772x510x46 mm.
TV weight: with stand: 9.2 kg, without stand: 8.7 kg.
Attention! The panel HE315CH-B12, BE315DH-IPS12 of the ROLSEN RL-32L1003 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 unrepairable.