Technical description and composition of the SAMSUNG UE55C6000RW TV, panel type and applicable modules. The composition of the modules.SAMSUNG LED
Model: UE55C6000RW UE55C6000
Chassis / Version: N96A
Panel: LTF550HJ03
LED backlight: LJ64-02386A LJ64-02391A
T-CON: S120APM4C4LV0.4
LED driver (backlight): integrated into PSU
PWM LED driver: HV9963
MOSFET LED driver: SDT03N04
Power Supply (PSU): BN44-00359A PD55AF1E_ZSM
PWM Power: SEM3040, ICE3BR1765J
MOSFET Power: STF13NM60
MainBoard: BN41-01444C BN94-04122T
IC MainBoard: CPU: SDP92, DRAM: K4T1G164QF; NAND Flash: KFG8GH6U4M-AIB6 (BGA)
Tuner: BN40-00172A
Technical Specifications UE55C6000
SAMSUNG UE55C6000RW
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG UE55C6000RW TV does not turn on, does not respond to the remote control and the control panel buttons, does not light up or blink indicators.
With such manifestations, the BN44-00359A power supply module sometimes fails. It is necessary to measure its output voltages and, if they are absent, check the power switches (STF13NM60) and rectifier diodes for the probability of a short circuit in the converters. First of all, you should check the operability of the standby mode node assembled on the ICE3BR1765J PWM controller with a built-in power switch in the DIP-8 package.
In case of breakdowns of diodes in the secondary circuits, the converter can usually operate in emergency short circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, as a rule, the mains fuse and / or current sensor at the source of the key breaks.
Mos-Fet power switches, used in switching power supplies, sometimes fail due to a malfunction of any other elements that can put it out of operation in key mode, or create an excess of the maximum permissible parameters of the switch. These can be elements supplying the PWM controller, frequency-setting or damping circuits, or negative feedback elements in the stabilization circuit. PWM controllers SEM3040, ICE3BR1765J, in the absence of visible damage or explicit short-circuit between the terminals, are checked by replacing with new ones, or obviously working.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
In such cases, the most likely malfunction of the LED backlight elements. The reason can be both in the power of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It is impossible to check the line of series-connected LEDs without a special current source, and for this purpose it is not safe to use any voltage sources above 12V for them. Then it remains only to open the panel and check each LED separately. Usually, Chinese 9V-powered multimeters light up a single 3-volt LED, if you connect the probes in the forward direction, the red probe to the anode, and the black to the cathode. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the BN41-01444C 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). When repairing an MB board, you need to check its CPU components: SDP92, DRAM: K4T1G164QF; NAND Flash: KFG8GH6U4M-AIB6 (BGA). Defective items should be replaced. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
Before replacing the tuner BN40-00172A, if there is no tuning to the channels, you must 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 a SAMSUNG UE55C6000RW TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
Service manua ------------->l SAMSUNG UE55C6000 Chassis N96A (Model: UE**C600*R*, UE**C650*U*, UE**C6700US).
PSU SCHEMATIC -----------------> BN44-00359A
The appearance of the MainBoard BN41-01444C is shown in the figure below:BN41-01444C
BN41-01444C can be used in TVs:
SAMSUNG UE40C6510UW (Panel T400FBE2-DB), SAMSUNG UE32C6510UW (Panel LTF320HF02), SAMSUNG UE55C6000RW UE55C6000 (Panel LTF550HJ03), SAMSUNG UE40C6000 UE40C6000RW05 (Panel)
The appearance of the power supply
Main features of the SAMSUNG UE55C6000RW device:
Installed matrix (LED-panel) LTF550HJ03.
The matrix control uses the Timing Controller (T-CON) S120APM4C4LV0.4.
To power the backlight LEDs, a converter is used, combined with the power supply, controlled by the HV9963 PWM controller. As power elements of the LED driver, keys of the type SDT03N04 are used.
The necessary supply voltages for all nodes of the SAMSUNG UE55C6000RW television are generated by the BN44-00359A power module or its analogs using SEM3040, ICE3BR1765J microcircuits and power switches of the STF13NM60 type.
MainBoard - the main board (motherboard) is a BN41-01444C module, using CPU chips: SDP92, DRAM: K4T1G164QF; NAND Flash: KFG8GH6U4M-AIB6 (BGA) and others.
The tuner BN40-00172A provides the reception of television programs and tuning to channels.
