REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Friday, 17 January 2020

REPAIR / SERVICING TV SAMSUNG UE46D6510WS

Technical description and composition of the SAMSUNG UE46D6510WS TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE46D6510WS UE46D6510
Chassis / Version: H304
Panel: LTJ460HW02-L
T-CON: SH120PMB4SV0.3
LED driver (backlight): with integrated PSU
PWM LED driver: SEM5025
MOSFET LED driver: STU432S
Power Supply (PSU): BN44-00427A PD46B2_BSM
PWM Power: ICE2PCS06 (PFC), SQD3011K, UCC25600,
MOSFET Power: MDF9N50, 10NM60N
MainBoard: BN41-01587E
IC MainBoard: SDP1001, SDP1005, SDP94, SIL9489ACTU, K4B2G1646C-HCH9, EPM240T100C4N
Tuner: BN40-00217A DNSS243VH142A
Technical Specifications UE46D6510
SAMSUNG UE46D6510WS
General repair guidelines for TV LCD LED
Possible manifestations of defects
- SAMSUNG UE46D6510WS TV does not turn on. There are no signs of operability. The indicators on the front panel do not shine and do not blink, and the remote control and control buttons do not respond.
Typically, with such manifestations, the defect is caused by faulty elements in the BN44-00427A module. It is necessary to measure the secondary output voltage, and in case of their absence, check the serviceability of the power switches (MDF9N50, 10NM60N) of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during a short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. PWM ICE2PCS06 (PFC), SQD3011K, UCC25600 can also be the cause of a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, there is sound, it responds to the remote control. Or the image may appear for a second when turned on and immediately disappears.
In such cases, the most likely malfunction of the LED backlight elements. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the LED line for breaks 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, as a rule, light up a single 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 broken into short-circuit.
- The TV does not turn on, the indicator signals standby or working mode, or blinks.
Repair or diagnostics of the BN41-01587E motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, you should update or replace the software (software). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements SDP1001, SDP1005, SDP94, SIL9489ACTU, K4B2G1646C-HCH9, EPM240T100C4N. BGA chip malfunctions are usually easy to detect by warming up.
Before replacing the tuner BN40-00217A DNSS243VH142A, if there is no tuning for 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
Attention TV owners! Attempts at self-repair of SAMSUNG UE46D6510WS are not recommended by the manufacturer and can lead to serious negative consequences!


The appearance of the MainBoard BN41-01587E is shown in the figure below:
BN41-01587E
BN41-01587E can be used in TVs:
SAMSUNG UE40D6510 UE40D6510WS (Panel LD400CSC-C2), SAMSUNG UE55D6100SW (Panel LTJ550HW04-L), SAMSUNG UE46D6530WS UE46D6530 (Panel LTJ460HW01-V), SAMSUNG 32D6510 32D6510WS (Panel LD320CSC-C2), SAMSUNG UE40D6530 UE40D6530WS (Panel LTJ400HV01-V), SAMSUNG UE46D6510WS UE46D6510 (Panel LTJ460HW02-L), SAMSUNG UE32D6510WS UE32D6510 (Panel LD320CSC-C2), SAMSUNG UE40D6500 UE40D6500VS (Panel LTJ400HV01-J).
The appearance of the power supply
Main features of the SAMSUNG UE46D6510WS device:
Installed matrix (LED-panel) LTJ460HW02-L.
The matrix control uses the Timing Controller (T-CON) SH120PMB4SV0.3.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the SEM5025 PWM controller. As power elements of the LED driver, keys of the STU432S type are used.
The necessary supply voltages for all nodes of the SAMSUNG UE46D6510WS TV are generated by the BN44-00427A power supply module or its analogs using ICE2PCS06 (PFC), SQD3011K, UCC25600 microcircuits, and power switches of the MDF9N50, 10NM60N type.
MainBoard - the main board (motherboard) is a module BN41-01587E, using microchips SDP1001, SDP1005, SDP94, SIL9489ACTU, K4B2G1646C-HCH9, EPM240T100C4N and others.
The tuner BN40-00217A DNSS243VH142A provides the reception of television programs and tuning to channels.


Posted By: FRANK at 06:27
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