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 UE46EH5307

Technical description and composition of the SAMSUNG UE46EH5307 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE46EH5307 UE46EH5307K
Chassis / Version: TS01 U71A, U71B
Panel: LTJ460HN05-L
T-CON: LSJ460HN03-S BN41-01797A
LED driver (backlight): integrated into PSU
PWM LED driver: SLC2012M
Power Supply (PSU): BN44-00498A PD46AV1_CSM, PSLF930C04A
PWM Power: PC7011F (PFC), FSFR1700XS, SQD2011K (Stb)
MainBoard: BN41-01812A BN94-06731E
IC MainBoard: CPU: SEMS27; NAND FLASH KLM2G1HE3F-B001; EEPROM: 24C256; Submicom: WT61P805 SAMSUNG UE55ES6100W Mine: BN41-01812A - BN94-05678Z BN40-00239B CPU: SEMS27; NAND FLASH KLM2G1HE3F-B001; EEPROM: 24C256; Submicom: WT61P805 SAMSUNG UE46ES6307U Mine: BN41-01812A B
Tuner: BN40-00239B
Control: IR: BN96-22413H BN41-01840B UE5000
Technical Specifications UE46EH5307
SAMSUNG UE46EH5307
General repair guidelines for TV LCD LED
Possible malfunctions
- SAMSUNG UE46EH5307 TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or flash, the TV does not respond to the control buttons.
Usually with such manifestations, the defect is caused by faulty elements in the main power module BN44-00498A. It is necessary to measure its output voltages and, if they are absent, to check the short circuit probability in the converters power switches and rectifier diodes.
In case of breakdowns of semiconductors in secondary circuits, the converter can usually work abnormally in short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) PC7011F (PFC), FSFR1700XS, SQD2011K (Stb), in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- 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.
As a rule, in such cases there is no display backlight. More often the reason for this is the breakdown of the LEDs, or poor contact in the connectors of the strips, less often the LED driver may be faulty.
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 TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights up constantly or blinks.
Repair or diagnostics of the BN41-01812A 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). Board repair and replacement of CPU chips: SEMS27; NAND FLASH KLM2G1HE3F-B001; EEPROM: 24C256; Submicom: WT61P805 SAMSUNG UE55ES6100W Mine: BN41-01812A - BN94-05678Z BN40-00239B CPU: SEMS27; NAND FLASH KLM2G1HE3F-B001; EEPROM: 24C256; Submicom: WT61P805 SAMSUNG UE46ES6307U Mine: BN41-01812A B are manufactured 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 BN40-00239B, 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
Once again, remind users! Attempts at self-repair of a SAMSUNG UE46EH5307 TV without the appropriate qualifications and necessary experience can lead to its complete non-repairability!


SCHEMATIC SERVICE MANUAL -------------------------->  Samsung UE46EH5300 shassis U71A,U71B.
UE32EH5****, UE22ES5****, UE37EH5**** UE19ES4****, UE40EH5****, UE46EH5****, UE26EH4****, UE32EH4****


 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 UE46EH5307 device:
Installed matrix (LED-panel) LTJ460HN05-L.
The matrix control uses the Timing Controller (T-CON) LSJ460HN03-S.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the SLC2012M PWM controller.
The necessary supply voltages for all nodes of the SAMSUNG UE46EH5307 TV are generated by the BN44-00498A power supply module or its analogs using PC7011F (PFC), FSFR1700XS, SQD2011K (Stb) microcircuits.
MainBoard - the main board (motherboard) is a BN41-01812A module, using CPU chips: SEMS27; NAND FLASH KLM2G1HE3F-B001; EEPROM: 24C256; Submicom: WT61P805 SAMSUNG UE55ES6100W Mine: BN41-01812A - BN94-05678Z BN40-00239B CPU: SEMS27; NAND FLASH KLM2G1HE3F-B001; EEPROM: 24C256; Submicom: WT61P805 SAMSUNG UE46ES6307U Mine: BN41-01812A B and others.
The tuner BN40-00239B provides the reception of television programs and tuning to channels.
Posted By: FRANK at 07:01
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