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, 10 January 2020

REPAIR / SERVICING TV SAMSUNG UE40F6330AK

Technical description and composition of the SAMSUNG UE40F6330AK TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE40F6330AK UE40F6330
Chassis / Version: WH07
Panel: CY-HF400CSLV5V
T-CON: BN41-02069A 2013_TCON_FOX_FT3
LED driver (backlight): integrated into PSU
PWM LED driver: SLC2013M
Power Supply (PSU): BN44-00622B L42X1Q_DHS
PWM Power: FSFR1800HS, SPC7011F (PFC = FA5695N), SQD3011K (STR3A161HD)
MainBoard: BN41-01958B BN94-07097A
IC MainBoard: SEMS30, K4B2G1646E, KLM4G1FE3B, 25Q40, 25Q40, WT61P807, TAS5745
Tuner: BN40-00262B
Technical Specifications UE40F6330
SAMSUNG UE40F6330AK
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG UE40F6330AK TV does not turn on and does not show any signs of operability at all. There is no reaction to the remote control and control buttons from the front panel.
Sometimes, with such manifestations, the defect is caused by faulty elements in the main power module BN44-00622B. Then it is necessary to measure its output voltage and, if they are absent, it is necessary to check the serviceability of power switches and rectifier diodes of the converters for the presence of a possible short circuit.
In case of any breakdown of semiconductors in the secondary circuits, the converter, as a rule, can normally work in emergency short circuit mode. The output voltages are absent or very low. And with a short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually 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 FSFR1800HS, SPC7011F (PFC = FA5695N), SQD3011K (STR3A161HD), in the absence of visible damage or open faults between the terminals, are checked by replacing them with new ones, or obviously working.
- There is no image, there is sound, there is a reaction to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
As a rule, in such cases there is no display backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
To detect a break in the LED lines without disassembling the panel, a current source is required. It is impossible to open transitions connected in series with a simple multimeter; voltage of several tens of volts is necessary.
- 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 BN41-01958B 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). The board is repaired and replaced with the SEMS30, K4B2G1646E, KLM4G1FE3B, 25Q40, 25Q40, WT61P807, TAS5745 microcircuits with the necessary equipment and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
Before replacing the tuner BN40-00262B, 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 must remember that attempts to self-repair a SAMSUNG UE40F6330AK TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!

The appearance of the MainBoard BN41-01958B is shown in the figure below:
BN41-01958B
BN41-01958B can be used in TVs:
SAMSUNG UE39F5500 UE39F5500AK (Panel HF390BGM-C1), SAMSUNG UE32F5300AK (Panel HF320BGA-B1), SAMSUNG UE40F6200AK (Panel CY-HF400BGLV2V), SAMSUNG UE32F4500AK (Panel HF32AGH-R1), SAMSUNG UE42F5300AK (Panel CY-HF420BGAV1V), SAMSUNG UE46F6500 AK (Panel CY-HF400CSLV1V), SAMSUNG UE46F6330AK UE46F6330 (Panel CY-HF460CSLV2V), SAMSUNG UE32F6330 AK (Panel CY-HF320CSLV1V), SAMSUNG UE40F6330AK UE40F6330 (Panel CY-HF400CSLV5V), SAMSUNG UE40F6510AB UE40F6510 (Panel CY-GF400CSLV2V), SAMSUNG UE55F6400AK UE55F6400 (Panel CY-HF550CSLV1V), SAMSUNG UE40F6540AB (Panel CY-GF400CSLV3V), SAMSUNG UE40F6500 UE40F6500SS (Panel CY-GF400CSLV1H), SAMSUNG UE46F6650 UE46F6650AB (Panel CY-GF460CSLV1V), SAMSUNG UE46F6510 UE46F6510AB (Panel CY-GF460CSLV2V), SAMSUNG UE50F6330 UE50F6330AK (Panel HF500CSA-B1).
The appearance of the power supply
Main features of the SAMSUNG UE40F6330AK device:
Installed matrix (LED panel) CY-HF400CSLV5V.
The matrix control uses the Timing Controller (T-CON) BN41-02069A.
To power the backlight LEDs, a converter is used, combined with the power supply, controlled by the SLC2013M PWM controller.
The necessary supply voltages for all nodes of the SAMSUNG UE40F6330AK TV are generated by the BN44-00622B power module or its analogs using the FSFR1800HS, SPC7011F (PFC = FA5695N), SQD3011K (STR3A161HD) microcircuits.
MainBoard - the main board (motherboard) is a BN41-01958B module, using chips SEMS30, K4B2G1646E, KLM4G1FE3B, 25Q40, 25Q40, WT61P807, TAS5745 and others.
The tuner BN40-00262B provides the reception of television programs and tuning to channels.

Posted By: FRANK at 07:11
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