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, 3 January 2020

REPAIR / SERVICING TV SAMSUNG UE32ES5500

Technical description and composition of the SAMSUNG UE32ES5500 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE32ES5500 UE32ES5500W
Chassis / Version: U78A
Panel: LE320BGM-C1
LED backlight: Edge Led 7032 6V 180mA
T-CON: V320HJ2-CPE2; CM2801B, CM501, CM601
LED driver (backlight): integrated into PSU; 135V, 240mA
PWM LED driver: SLC2012M
MOSFET LED driver: MDD5N40
Power Supply (PSU): BN44-00501A
PWM Power: 2S110
MOSFET Power: 13NM60N
MainBoard: BN41-01812A
IC MainBoard: CPU: SEMS27; NAND FLASH KLM2G1HE3F-B001; EEPROM: 24C256; SDRAM K4B2G1646C-HCK0
Tuner: BN40-00232A TDOD40FVL084AA
Control: AA59-00582A
Technical Specifications UE32ES5500
SAMSUNG UE32ES5500
General repair guidelines for TV LCD LED
SAMSUNG UE32ES5500 W TV, like many other electronic devices, it is advisable to start repairing by inspecting all external and internal elements. Often, based on certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain circuit elements even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
In cases when the SAMSUNG UE32ES5500 TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turning on, the BN44-00501A power supply module is most likely faulty or missing standby power. First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is broken in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
The breakdown of the power switch of the pulse converter is often triggered by other elements, for example, in the stabilization or control circuits of this switch, as well as by the damper elements in its drain and TPI winding.
If the SAMSUNG UE32ES5500 does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction in the backlight LED circuit of the LE320BGM-C1 panel, or their power converter - LED driver. Sometimes, when turned on, the image appears and immediately disappears. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the backlight unit.
In case of breaks in the LED circuit, a complete disassembly of the panel is required, the LEDs are checked for breakage, as well as the reliability of the connections in the connectors and the rations of the terminals.
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 LED will light up slightly.
Diagnosis and repair of the BN41-01812 A motherboard usually begins with a test of the performance of the stabilizers and power converters of the module chips. In some cases, a software update is required.
Board repair and replacement of CPU chips: SEMS27; NAND FLASH KLM2G1HE3F-B001; EEPROM: 24C256; SDRAM K4B2G1646C-HCK0 are produced 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.
Malfunction of the tuner BN40-00232A TDOD40FVL084AA is established after checking the software and all supply voltages at its terminals.
Once again, remind users! Attempts to self-repair a SAMSUNG UE32ES5500 TV without the appropriate qualifications and experience can lead to its complete non-repairability!


SCHEMATICS ------------>  SAMSUNG Chassis U78A/U78B Model: UE26EH45***, UE22ES54***, UE**EH53***,UE**ES55***, UE**ES57***, UE**ES58***, UE**EH5450W.


PSU SCHEMATIC ---------->  Power supply BN44-00501A

  The appearance of the MainBoard BN41-01812A is shown in the figure below:
BN41-01812A
BN41-01812A can be used in TVs:
SAMSUNG UE32EH5300P (Panel DE320BGM-C1 ), SAMSUNG UE40ES6307U (Panel LTJ400HV05-L), SAMSUNG UE40ES5537K (Panel CY-LE400BGSV1L), SAMSUNG UE32ES5557K (Panel LE320BGM-C1), SAMSUNG UE40EH5307K (Panel LTJ400HM08-L), SAMSUNG UE37ES6307U (Panel LE370CSA-C1), SAMSUNG UE32ES5500 UE32ES5500W (Panel LE320BGM-C1), SAMSUNG UE32ES5530W UE32ES5530 (Panel LE320BGM-C1), SAMSUNG UE32ES5507K UE32ES5507V (Panel LE320BGM-C1), SAMSUNG UE32ES5537K (Panel LE320BGM-C1), SAMSUNG UE40ES5530W UE40ES5530 (Panel CY-LE400BGSV1L), SAMSUNG UE40ES6100W (Panel LTJ400HV05-L), SAMSUNG UE32EH5300W UE32EH5300 (Panel DE320BGM-C1), SAMSUNG UE32EH5307K UE32EH5307 (Panel DE320BGM-C1), SAMSUNG UE55ES6100W (Panel LTJ550HW08-L), SAMSUNG UE46ES6307U (Panel LTJ460HW05-L), SAMSUNG UE40EH5300W (Panel LTJ-400HM08-L), SAMSUNG UE46ES6100W UE46ES6100 (Panel LTJ460HW05-L), SAMSUNG UE37ES6100W (Panel LE370CSA-C1), SAMSUNG UE50ES5700 UE50ES5700SXZG (Panel LE500BGA-B2), SAMSUNG UE40ES5507K UE40ES5507 (Panel LE400BGA-B1), SAMSUNG UE46EH5300 UE46EH5300W (Panel LTJ460HN05-L), SAMSUNG UE32ES6307 UE32ES6307U (Panel LE320CSM-C1), SAMSUNG UE50ES5507K UE50ES5507 (Panel LE500BGA-B2), SAMSUNG UE40ES5557K UE40ES5557 (Panel LE400BGA-B1), SAMSUNG UE46ES6200 (Panel LTJ460HW05-C), SAMSUNG UE32ES6100 UE32ES6100W (Panel LE320CSM-C1), SAMSUNG UE40ES5500 UE40ES5500W (Panel LTJ400HM09-L), SAMSUNG UE32ES5550 UE32ES5550W (Panel LE320BGM-C1).
The appearance of the power supply
Main features of the SAMSUNG UE32ES5500 device:
Installed matrix (LED panel) LE320BGM-C1.
The matrix control uses the Timing Controller (T-CON) V320HJ2-CPE2 ;.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the SLC2012M PWM controller. As power elements of the LED driver, keys of the MDD5N40 type are used.
The necessary supply voltages for all nodes of the SAMSUNG UE32ES5500 TV are generated by the BN44-00501A power module, or its analogs using 2S110 microcircuits and 13NM60N type power switches.
MainBoard - the main board (motherboard) is a BN41-01812A module, using CPU chips: SEMS27; NAND FLASH KLM2G1HE3F-B001; EEPROM: 24C256; SDRAM K4B2G1646C-HCK0 and others.
The tuner BN40-00232A TDOD40FVL084AA provides the reception of television programs and tuning to channels.
Posted By: FRANK at 08:49
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