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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Saturday 18 January 2020

REPAIR / SERVICING TV SAMSUNG UE46H6233

Technical description and composition of the SAMSUNG UE46H6233 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE46H6233 UE46H6233AK
Chassis / Version: Ver: TS01
Panel: CY-DF460CSLV1V
LED backlight: LUMENS D3GE-460SMB-R1 (05.13.02), LUMENS D3GE-460SMA-R2 (07.13.10)
T-CON: BN41-02069, LSF460HJQ
LED driver (backlight): integrated into PSU
PWM LED driver: SEM4011
Power Supply (PSU): BN44-00766A L46HV1_ESM
PWM Power: PWM
MainBoard: BN41-02241A BN94-08018G
IC MainBoard: SPI Flash: 25Q40CL; EEPROM: ATMLH 416 2EC; SOUND: TAS5747PHPR
Tuner: DNTQ403IL286A BN40-00287A
Control: IR: UE6030 BN41-01899c BN96-23838a, WiFi: WIDT30Q BN59-01174A
Technical Specifications UE46H6233
SAMSUNG UE46H6233
General repair guidelines for TV LCD LED
In the absence of any signs of operability, when the SAMSUNG UE46H6233 does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the TV BN44-00766A L46HV1_ESM power module. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is checked by replacing it with a known good one.
If there is no image when you turn on the SAMSUNG UE46H6233, or it appears and immediately disappears, but there is sound, most likely there is a malfunction in the backlight LED circuit of the CY-DF460CSLV1V panel, or in the LED node of the driver-converter of their power supply.
A malfunction in the backlight circuits often occurs due to a break in the power supply lines of the LED lines. It is necessary to disassemble the panel and check the LEDs themselves, the soldering of their conclusions, as well as the reliability of the connections in the connectors and the soldering of the conclusions of the connectors.
When trying to identify a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update the software (software).
Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing elements of SPI Flash: 25Q40CL; EEPROM: ATMLH 416 2EC; SOUND: TAS5747PHPR requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can be diagnosed by warming up.
Before changing the tuner DNTQ403IL286A BN40-00287A, if it is not possible to tune to television channels, make sure that there are supply voltages that need to be measured at the corresponding terminals of the tuner and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Remember! Attempts to self-repair by users of the SAMSUNG UE46H6233 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!



The appearance of the MainBoard BN41-02241A is shown in the figure below:
BN41-02241A
BN41-02241A can be used in TVs:
SAMSUNG UE40H5303 UE40H5303AK (Panel CY-DF400BGLV1V), SAMSUNG UE40H6203 UE40H6203AK (Panel CY-DF400CSLV3V), SAMSUNG UE46H6233 UE46H6233AK (Panel CY-DF460CSLV1V), SAMSUNG UE46H5303AK (Panel CY-DF460BGLV1V), SAMSUNG UE55H6203AK UE55H6203 (Panel CY-DF550CSLV1V), SAMSUNG UE32H5303AK UE32H5303 (Panel CY-DF320BGLV1V LSF320HN02-A01), SAMSUNG UE46H6203AK UE46H6203 (Panel CY-DF460CSLV1V).
The appearance of the power supply
Main features of the SAMSUNG UE46H6233 device:
Installed matrix (LED panel) CY-DF460CSLV1V.
The matrix control uses the Timing Controller (T-CON) BN41-02069.
To power the backlight LEDs, a converter is used, combined with a power supply, controlled by the SEM4011 PWM controller.
The formation of the necessary supply voltages for all nodes of the SAMSUNG UE46H6233 TV is carried out by the BN44-00766A power module, or its analogs using PWM chips.
MainBoard - the main board (motherboard) is a BN41-02241A module, using SPI Flash chips: 25Q40CL; EEPROM: ATMLH 416 2EC; SOUND: TAS5747PHPR and others.
The tuner DNTQ403IL286A BN40-00287A provides the reception of television programs and tuning to channels.
Posted By: FRANK at 06:50
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