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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Tuesday, 7 January 2020

REPAIR / SERVICING TV SAMSUNG UE32H6350

Technical description and composition of the SAMSUNG UE32H6350 TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE32H6350 UE32H6350AK
Chassis / Version: TH01
Panel: CY-GH032CSLV2V
LED backlight: D4GE-320DC1-R1 [12/13/19]
LED driver (backlight): integrated into PSU
PWM LED driver: PIC16F753, 7014X
MOSFET LED driver: MDD7N25, FDD6N25
Power Supply (PSU): BN44-00707A L32X1T_EHS
PWM Power: SPC7011F, FA6A01
MOSFET Power: 10N60M2, KF7N50
MainBoard: BN41-02156A
IC MainBoard: SEMS31, 25Q40CL, S24C512, NTP7414
Tuner: BN40-00288A
Control: WIFI WIDT30Q BN59-01174A
Technical Specifications UE32H6350
SAMSUNG UE32H6350
General repair guidelines for TV LCD LED
Possible manifestations of defects
- The SAMSUNG UE32H6350 TV does not turn on, does not respond to the remote control and the control panel buttons, does not light up or blink indicators.
In such cases, the fault should be sought first in the BN44-00707A power supply module. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches (10N60M2, KF7N50) and rectifier diodes of the converters 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 Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM microcircuits (PWM) SPC7011F, FA6A01 are usually checked by replacing with new ones, or obviously working.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn on and immediately disappears
The most likely in these cases is a malfunction of the LED backlight. The reason for this may be a break in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to check the line of series-connected LEDs without a special current source, and for this purpose it is not safe to use any voltage sources above 12V for them. Then it remains only to open the panel and check each LED separately. Usually, Chinese 9V-powered multimeters light up a single 3-volt LED, if you connect the probes in the forward direction, the red probe to the anode, and the black to the cathode. In dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as a health indicator. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the BN41-02156A 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). In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its chips SEMS31, 25Q40CL, S24C512, NTP7414 and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
Before changing the tuner BN40-00288A, if it is not possible to tune to television channels, you should make sure that there are supply voltages that must 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
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair to professionals with sufficient experience in the repair of electronic equipment.


The appearance of the MainBoard BN41-02156A is shown in the figure below:
BN41-02156A
BN41-02156A can be used in TVs:
SAMSUNG UE40H6200 UE40H6200AK (Panel CY-GH040CSLV1V), SAMSUNG UE32H5500 UE32H5500AK (Panel GH032BGA-B2), SAMSUNG UE40H5500 UE40H5500AK (Panel CY-GH040BGLV2V), SAMSUNG UE32H6200AK (Panel CY-GH032CSLV1V), SAMSUNG UE40H6350 (Panel CY-GH040CSLV2V), SAMSUNG UE32H6410AU UE32H6410 (Panel CY-GH032CSLV4V), SAMSUNG UE40H6400AK UE40H6400 (Panel CY-SH040CSL V2H), SAMSUNG UE48H6200 UE48H6200AK (Panel CY-GH048CSLV1V), SAMSUNG UE48H6230AK UE48H6230 (Panel CY-GH048CSLV1V), SAMSUNG UE48H6400AK UE48H6400 (Panel CY-GH048CSLV2V), SAMSUNG UE48H6410AU UE48H6410 (Panel CY-GH048CSLV4V), SAMSUNG UE48H6240AK UE48H6240 (Panel CY-GH048CSLV1V), SAMSUNG UE32H4500AK UE32H4500 (Panel CY-HH032AGLV2V), SAMSUNG UE40H6410 UE40H6410AU (Panel CY-GH040CSLV4V), SAMSUNG UE40H6500 UE40H6500AT (Panel CY-GH040CSLV1V), SAMSUNG UE32H6230 UE32H6230AK (Panel T320HVF05.2), SAMSUNG UE32H4510 UE32H4510AK (Panel HH032AGH-R3 BN96-31086F), SAMSUNG UE32H6350 UE32H6350AK (Panel CY-GH032CSLV2V), SAMSUNG UE40H6230 UE40H6230AK (Panel CY-GH048CSLV1V).
The appearance of the power supply
Main features of the SAMSUNG UE32H6350 device:
Installed matrix (LED panel) CY-GH032CSLV2V.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by a PIC16F753, 7014X PWM controller. As power elements of the LED driver, keys of the type MDD7N25, FDD6N25 are used.
The necessary supply voltages for all nodes of the SAMSUNG UE32H6350 TV are generated by the power module BN44-00707A, or its analogs using microcircuits SPC7011F, FA6A01 and power switches of the type 10N60M2, KF7N50.
MainBoard - the main board (motherboard) is a BN41-02156A module, using microchips SEMS31, 25Q40CL, S24C512, NTP7414 and others.
The tuner BN40-00288A provides the reception of television programs and tuning to channels.
Posted By: FRANK at 07:39
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