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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Monday, 6 January 2020

REPAIR / SERVICING TV SAMSUNG UE32ES6547

Technical description and composition of the SAMSUNG UE32ES6547 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE32ES6547 UE32ES6547U
Chassis / Version: U78A / U79A
Panel: LTJ320HW05-l
LED backlight: Edge LED V1GE-320SM0-R2
T-CON: LSJ320HW02-S BN41-01789A
LED driver (backlight): integrated into PSU
PWM LED driver: SLC5012M
MOSFET LED driver: D3N40, D5N40
Power Supply (PSU): BN44-00517C PD32B1DE_CSM
PWM Power: SSC2S110, PWM SOT23-6
MOSFET Power: MDD1752, D4189
MainBoard: BN41-01807A
IC MainBoard: WT61P805 (Standby), KLM2G1HE3F-B001, K4B2G1646C-HCK0, NTP7412S
Tuner: BN40-00236A DNSD243VH144A
Technical Specifications UE32ES6547
SAMSUNG UE32ES6547
General repair guidelines for TV LCD LED
Possible malfunctions
- The SAMSUNG UE32ES6547 TV does not turn on and does not show any signs of turning on, it does not respond to the control buttons or the remote control.
With such manifestations, in some cases, the BN44-00517C power module is faulty. It is necessary to measure its output voltages, and if they are absent, check the operability of power switches (MDD1752, D4189) of converters and rectifier diodes for a short circuit probability.
In case of breakdowns in the secondary circuits, the converter, as a rule, can emergency work in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
The breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback (OOS) stabilization circuits. PWM controllers (PWM) SSC2S110, PWM SOT23-6, if they do not have visible damage to the case and open fault between the terminals, are usually checked by replacement.
- There is no image, but there is sound and all other functions work. Sometimes when you turn on the image for a second appears and disappears.
Failure is usually in these cases is the backlight matrix (LED-panel). The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
- The indicator blinks or glows constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the BN41-01807A 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 WT61P805 (Standby), KLM2G1HE3F-B001, K4B2G1646C-HCK0, NTP7412S. BGA chip malfunctions are usually easy to detect by warming up.
If the TV works normally from external devices, but does not tune into television channels, the tuner BN40-00236A DNSD243VH144A may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Attention TV owners! Attempts to self-repair SAMSUNG UE32ES6547 are not recommended by the manufacturer and can lead to serious negative consequences!

Service manual and schematic diagram ------------------->  SAMSUNG UE32ES6547 Chassis U78A/U79A.

 The appearance of the MainBoard BN41-01807A is shown in the figure below:
BN41-01807A
BN41-01807A can be used in TVs:
SAMSUNG UE40ES6550S (Panel LTJ400HV05-V), SAMSUNG UE46ES6547U UE46ES6547 (Panel LTJ460HW06-L), SAMSUNG UE40ES7207U (Panel LTJ400HL10-L), SAMSUNG UE46ES6540 UE46ES6540U (Panel LTJ460HW06-L), SAMSUNG UE40ES6750 MXRU (Panel LTJ400HV08-L), SAMSUNG UE32ES6727U UE32ES6727 (Panel LTJ320HW06-L), SAMSUNG UE40ES6757 UE40ES6757M (Panel LTJ400HV08-L), SAMSUNG UE32ES6550 UE32ES6550S (Panel LE320CSM-C1), SAMSUNG UE40ES6540S (Panel LTJ400HV07-L), SAMSUNG UE55ES6760 UE55ES6760SXZG (Panel LTJ550HW10-B), SAMSUNG UE32ES6540 UE32ES6540S (Panel LE320CSM-C1), SAMSUNG UE40ES6727 UE40ES6727U (Panel LTJ400HV08-L), SAMSUNG UE32ES6757M (Panel LE320CSM-C2).
The appearance of the power supply
Main features of the SAMSUNG UE32ES6547 device:
Installed matrix (LED-panel) LTJ320HW05-l.
The matrix control uses the Timing Controller (T-CON) LSJ320HW02-S.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the SLC5012M PWM controller. As power elements of the LED driver, keys of the type D3N40, D5N40 are used.
The necessary supply voltages for all nodes of the SAMSUNG UE32ES6547 TV are generated by the BN44-00517C power module or its analogs using SSC2S110, PWM SOT23-6 microcircuits and power switches of the MDD1752, D4189 type.
MainBoard - the main board (motherboard) is a BN41-01807A module, using microchips WT61P805 (Standby), KLM2G1HE3F-B001, K4B2G1646C-HCK0, NTP7412S and others.
The tuner BN40-00236A DNSD243VH144A provides the reception of television programs and tuning to channels.
Posted By: FRANK at 05:41
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