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 UE46D6530WS

Technical description and composition of the SAMSUNG UE46D6530WS TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE46D6530WS UE46D6530
Chassis / Version: HQ03
Panel: LTJ460HW01-V
LED backlight: BN64-01645A = 2011SVS46-FHD-6.5K-LEFT / RIGHT JVG3-460SMB-R1 (10,11,09)
T-CON: BN41-01743B SH120PMB4SV0.3 LSJ460HW01-S
LED driver (backlight): integrated into PSU
PWM LED driver: SEM5025
MOSFET LED driver: STU432S
Power Supply (PSU): BN44-00427A - PD46B2-BSM
PWM Power: SQD3011K, UCC25600, ICE2PCS06 (PFC)
MOSFET Power: 10NM60N, MDF9N50
MainBoard: BN41-01587E BN94-05105Q / BN94-06106Q
IC MainBoard: SDP1001, SDP1005, SDP94, SIL9489ACTU, K4B2G1646C-HCH9, EPM240T100C4N
Tuner: BN40-00217A
Control: IR: BN96-18099H BN41-01638B; WiFi: WIDT10B BN59-01130A 649E-WIDT10B
Technical Specifications UE46D6530
SAMSUNG UE46D6530WS
General repair guidelines for TV LCD LED
If the UE46D6530WS does not turn on, does not respond to the remote control and the front panel buttons, does not blink light bulbs and does not show any signs of operability, the power supply module BN44-00427A - PD46B2-BSM is probably faulty in this case. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the filters of the secondary rectifiers (if any), you must first check the mains fuse. When it is broken, the power elements of transistors 10NM60N, MDF9N50 and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
The reasons for the breakdown of the power switch in switching 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 PWM controller SQD3011K, UCC25600, ICE2PCS06 (PFC) or broken resistors in her harness.
If, when you turn on the TV, the image appears and immediately disappears, or is missing initially when you turn on, but the sound has other functions that work, there is a high probability of a malfunction of the display backlight LEDs or the LED driver (power converter for the LTJ460HW01-V panel backlight assembly).
In most cases of lack of backlight, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or several LEDs does not work in one line, therefore, they are broken and should be replaced.
To check the health in the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can test each LED individually with a simple Chinese multimeter (powered by 9 volts) in the P-N-junction test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. A zener diode PN junction indirectly indicates a LED-a
If the motherboard BN41-01587E BN94-05105Q / BN94-06106Q is faulty, first of all it is necessary to check all the linear stabilizers and power converters of its chips, and also, if necessary, update the software (software). Sometimes you can check the health of MB only by replacement.
If it is not possible to replace the MB board (SSB), you need to check the health of its elements - SDP1001, SDP1005, SDP94, SIL9489ACTU, K4B2G1646C-HCH9, EPM240T100C4N. Defective components should be replaced.
The malfunction of the tuner BN40-00217A is established after checking the software and all the supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
We recommend the owners of the UE46D6530WS TV for repair only to qualified specialists with experience! Self-repair attempts without the appropriate knowledge and skills 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 UE46D6530WS device:
Installed matrix (LED panel) LTJ460HW01-V.
The matrix control uses the Timing Controller (T-CON) BN41-01743B.
To power the backlight LEDs, a converter is used, combined with the 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 UE46D6530WS TV are generated by the BN44-00427A power supply module or its analogs using SQD3011K, UCC25600, ICE2PCS06 (PFC) microcircuits and power switches of the type 10NM60N, MDF9N50.
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 provides the reception of television programs and tuning to channels.
Posted By: FRANK at 06:29
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