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 30 December 2019

REPAIR / SERVICING TV SAMSUNG UE32J5500AU

Technical description and composition of the SAMSUNG UE32J5500AU TV, panel type and applicable modules. The composition of the modules.
SAMSUNG
Model: UE32J5500AU
Panel: T320HVF05.5
T-CON: T320HVN05.4; AUO-12309
Inverter (backlight): integrated into PSU
Power Supply (PSU): BN44-00701A L32S1P_EDY
PWM Power: SSC1S311A
MOSFET Power: 11N65
MainBoard: BN41-02353B
IC MainBoard: SDP1415 Hawk-MF, 25Q40CL, 24C512
Tuner: BN40-00318A
Technical Specifications UE32J5500AU
SAMSUNG UE32J5500AU
General repair guidelines for TV LCD
Possible manifestations of defects
- The SAMSUNG UE32J5500AU TV does not turn on and does not show any signs of operability at all. There is no reaction to the remote control and control buttons from the front panel.
With such manifestations, a malfunction is most likely to be detected in the BN44-00701A power supply module. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches and rectifier diodes in the converters for a short circuit.
In case of breakdowns of the diodes in the secondary circuits, the converter can operate in emergency short circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually 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) IC_Power, in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, there is sound, there is a reaction to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
These manifestations can be triggered by a power supply module, or by inverter defects, as well as a distortion of the currents in the lamps due to their uneven wear. If all the electrolytic capacitors of the filter according to the inverter power supply are serviceable, you should make sure that the lamps are in good working condition, then you need to check the converter keys and the secondary windings of the transformers.
If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during operations, and after their completion, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the BN41-02353B 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 some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - SDP1415 Hawk-MF, 25Q40CL, 24C512 with new or obviously good ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
The malfunction of the tuner BN40-00318A is established after checking the software and all the supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Attention TV owners! Attempts to self-repair SAMSUNG UE32J5500AU are not recommended by the manufacturer and can lead to serious negative consequences!

MainBoard BN41-02353B view is shown in the figure below:
BN41-02353B
BN41-02353B can be used in TVs:
SAMSUNG UE40J6390 (Panel CY-GH040CSLV1V), SAMSUNG UE40J5530AU UE40J5530 (Panel CY-GJ040BGSV5V), SAMSUNG UE40J5500AU (Panel CY-GJ040BGSV5V), SAMSUNG UE40J5550 UE40J5550AU (Panel CY-GJ040BGSV1V), SAMSUNG UE40J6330AU (Panel CY-GH040CSLVFV), SAMSUNG UE32J6300 UE32J6300AU (Panel CY-GH032CSLV5V), SAMSUNG UE48J6200AU (Panel CY-GH048CSLVAV), SAMSUNG UE48J5510AU (Panel CY-GJ048BGLV3V), SAMSUNG UE32J6500AU UE32J6500 (Panel CY-WJ032CGLV2V), SAMSUNG UE40J5520AU UE40J5520 (Panel CY-GJ040BGSV5V), SAMSUNG UE43J5500 UE43J5500AU (Panel T430HVF01.0), SAMSUNG UE40J6200AU UE40J6200 (Panel CY-GH040CSLV8V), SAMSUNG UE32J5550AU UE32J5550 (Panel CY-GJ032BGAB3V), SAMSUNG UE32J5500AU (Panel T320HVF05.5), SAMSUNG UE40J6590 UE40J6590AU (Panel CY-WJ040CGLV1V), SAMSUNG UE40J5510AU (Panel CY- GJ040BGSV3V).
Main features of the SAMSUNG UE32J5500AU device:
Installed matrix (LCD-panel) T320HVF05.5.
The matrix control uses the Timing Controller (T-CON) T320HVN05.4 ;.
To power the backlight, a converter is used, combined with the power supply.
The necessary supply voltages for all nodes of the SAMSUNG UE32J5500AU TV are generated by the BN44-00701A power module or its analogs using SSC1S311A microcircuits and 11N65 type power switches.
MainBoard - the main board (motherboard) is a BN41-02353B module, using SDP1415 Hawk-MF, 25Q40CL, 24C512 chips, and others.
The tuner BN40-00318A provides the reception of television programs and tuning to channels.
Posted By: FRANK at 06:41
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