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 UE32EH5300P

Technical description and composition of the SAMSUNG UE32EH5300P TV, panel type and applicable modules. The composition of the modules.
SAMSUNG LED
Model: UE32EH5300P
Chassis / Version: U71A
Panel: DE320BGM-C1
LED backlight: 2011SVS32 3228 FHD 10 Rev1.0 Direct LED
T-CON: V320HJ2-CPE2; CM2801B, CM501, CM601
LED driver (backlight): integrated into PSU; 140V 260mA
PWM LED driver: SLC1012C (FAN7340)
MOSFET LED driver: MDD3752
Power Supply (PSU): BN44-00493B PD32AVF_CHS REV1.1
PWM Power: SSC2S110
MOSFET Power: MDF11N65B
MainBoard: BN41-01812A BN94-05731A
IC MainBoard: SEMS27, DRV612, MTP-7412S, TPS54427, LCX244, LVC245A, WT61P805, AP2119, GL8526, Z1051PI
Tuner: DTOD40FVL084AA BN40-00232A
Appearance
SAMSUNG UE32EH5300P
General repair guidelines for TV LCD LED
In cases where the SAMSUNG UE32EH5300P 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 BN44-00493B power supply module is most likely faulty or missing processor power on the motherboard (a typical defect in some SAMSUNG TVs). When diagnosing and repairing the power supply, first of all, replace the swollen filter capacitors of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module — rectifier diodes and transistors MDF11N65B, PC4A7 SEC1012C in the primary circuit.
Power switches in switching power supplies (SMPS) fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The reason may be a malfunction of the 2S110 PWM controller microcircuit, which can only be checked by replacing it with a new or obviously working one.
If the SAMSUNG UE32EH5300P does not have an image, but there is sound, the backlight LEDs on the DE320BGM-C1 panel or their power converter may malfunction. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
A malfunction in the backlight circuits often occurs due to an open circuit in the power supply circuit of the 2011SVS32 3228 FHD 10 Rev1.0 LED lines. It requires disassembling the panel and checking the LEDs themselves, the soldering of their outputs, as well as the reliability of the connections in the connectors and the soldering of the conclusions of the connectors.
When diagnosing, it is necessary to take into account that it is impossible to check the open in the circuit of the LED lines without disassembling the panels with a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally, a current source.
In cases of attempts to repair the motherboard BN94-05731A, it is necessary to check the operability of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating.
When repairing an MB board, you need to check its components SEMS27, DRV612, MTP-7412S, TPS54427, LCX244, LVC245A, WT61P805, AP2119, GL8526, Z1051PI. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.
Before changing the DTOD40FVL084AA BN40-00232A tuner, if it is not possible to tune to television channels, make sure that there are supply voltages, including varicap power (30-33V), which must be measured on the corresponding tuner terminals.
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 only to professionals with sufficient experience in the field of repair of electronic equipment.


SCHEMATIC MANUAL ------------->  Samsung UE32EH5300 shassis U71A.
UE32EH5****, UE22ES5****, UE37EH5**** UE19ES4****, UE40EH5****, UE46EH5****, UE26EH4****, UE32EH4****

PSU SCHEMATIC  Samsung ------------>  BN44-00493B Power supply

 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 UE32EH5300P device:
Installed matrix (LED panel) DE320BGM-C1.
The matrix control uses the Timing Controller (T-CON) V320HJ2-CPE2 ;.
To power the backlight LEDs, a converter is used, combined with the power supply, controlled by the PLC controller SLC1012C (FAN7340). As power elements of the LED driver, keys of the MDD3752 type are used.
The necessary supply voltages for all nodes of the SAMSUNG UE32EH5300P TV are generated by the BN44-00493B power module or its analogs using SSC2S110 microcircuits and MDF11N65B type power switches.
MainBoard - the main board (motherboard) is a BN41-01812A module, using microchips SEMS27, DRV612, MTP-7412S, TPS54427, LCX244, LVC245A, WT61P805, AP2119, GL8526, Z1051PI and others.
Tuner DTOD40FVL084AA BN40-00232A provides the reception of television programs and tuning to channels.
Information from an alternative source:
SAMSUNG UE32EH5300P / UE32EH5300W
Panel Type (Matrix): DE320BGM-C1
Motherboard: BN94-05731A BN41-01812A / BN94-05559L BN41-01812, SEMS27, DRV612, MTP-7412S, TPS54427, LCX244, LVC245A, WT61P805, AP2119, GL8526, Z1051PI, Tuner: DTODA3240V4040VB40A
T-con: V320HJ2-CPE2, CM2801B, CM501, CM601
PSU: PD32AVF_CHS REV1.1 BN44-00493B, PWM 2S110 SK213 670M & MDF11N65B, MDS1653, PC4A7 SEC1012C, TPI 1100098NDC, TC-130-A, REMOTE: AA59-00585A EEPROM, new menu
Posted By: FRANK at 08:21
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