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, 7 March 2020

REPAIR / SERVICING TV SONY KDL-40V5610

Technical description and composition of the SONY KDL-40V5610 TV, panel type and applicable modules. The composition of the modules.
SONY
Model: KDL-40V5610
Chassis / Version: EX2L_CORIANDER
Panel: LTY400HA12
Power Supply (PSU): IP1 board A1660720B
PWM Power: CXD9969P (PWM Resonant), MIP2H2 (Standby)
MainBoard: 1-878-942-22 BA Board 187894222 A-1663-964-B
IC MainBoard: MC10147F1 410, MB91F313A, NAND Flash K9F1208UOC, EEPROM 24c32
Tuner: 8-597-700-01
Control: RM-ED016
Technical Specifications KDL-40V5610
SONY KDL-40V5610
General recommendations for repairing TV LCD
SONY KDL-40V5610 TV, like any other, it is advisable to start repairing it by inspecting the internal and external visible physical visual changes. It often happens that some damage to elements or connections will help determine the correct direction of troubleshooting and localization of the defect. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
Malfunctions of the IP1 A1660720B power supply module can be expressed in different ways, for example, the SONY KDL-40V5610 does not turn on at all and the control lamps on its front panel do not light up and do not blink, there are no signs of operability. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and, in the event of a break, the cause should be sought in the power semiconductor elements of the pulsed flyback converter of the main PSU. First of all, it is necessary to check the diodes of the bridge of the rectifier of the mains voltage and the power switch of the converter, which can be installed separately on the radiator, or integrated with a PWM controller.
Power switches in flyback converters 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 cause may be a malfunction of the PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
In cases where the Power Factor Corrector (PFC) is used in the power supply, troubleshooting can be a bit more complicated.

If the SONY KDL-40V5610 does not have an image, there is sound and the channels are switched, there is a possibility of a malfunction of the display backlight, or their power converter - inverter. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the inverter itself, including in the secondary rectifier of the main PSU.
Often attempts to repair the inverter are hampered by the fact that the fault diagnosis is complicated by the operation of its protection, which is designed to turn off the inverter in emergency conditions - when the lamps are depressurized, breaks or short circuits in high-voltage connections and other emergency situations. Lock protection to localize the defect is popular among repairmen.
In such cases, special care should be taken during diagnostics, and after completion of all repair work, it is necessary to restore the circuit and the inverter protection for further safe operation of the TV.
Repairing or diagnosing a BA Board motherboard should begin by checking the power conditioners. If necessary, you should update the software (software).
Attention to the owners! Attempts at self-repair of the SONY KDL-40V5610 TV are not recommended by the manufacturer and can lead to serious negative consequences!
Service manual / schematic diagram --------------->   Sony KDL-32/37/40/46/52V5500, KDL-40V5610, KDL-46V5610 CHASSIS EX2L-Coriander


 The appearance of MainBoard 1-878-942-22 is shown in the figure below:
1-878-942-22
1-878-942-22 can be used in televisions:
SONY KDL-32W5500 (Panel T315XW02 V.1), SONY KDL-37V5500 (Panel T370HW02 V.B.), SONY KDL-40V5610 (Panel LTY400HA12), SONY KDL-40W5500 (Panel LTY400HF05), SONY KDL-40WE5 (Panel LTY400HF02 102), SONY KDL-46W5500 (Panel LTY460HF05), SONY KLV-46V550A (Panel T460HW03 V.2), SONY KDL-46W5740 (Panel LTY460HF05).
The appearance of the power supply
Main features of the device SONY KDL-40V5610:
Installed matrix (LCD-panel) LTY400HA12.
The necessary supply voltages for all nodes of the SONY KDL-40V5610 TV are generated by the IP1 power supply module or its analogs using CXD9969P (PWM Resonant), MIP2H2 (Standby) microcircuits.
MainBoard - the main board (motherboard) is a module 1-878-942-22, using microchips MC10147F1 410, MB91F313A, NAND Flash K9F1208UOC, EEPROM 24c32 and others.
The tuner 8-597-700-01 provides reception of television programs and tuning to channels.
Posted By: FRANK at 07:44
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