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 9 March 2020

REPAIR / SERVICING TV SONY KDL-46V5610

Technical description and composition of the TV SONY KDL-46V5610, type of panel and applicable modules. The composition of the modules.
SONY
Model: KDL-46V5610
Chassis / Version: EX2L_Coriander
Panel: LTY460HB10
T-CON: FS_HBC2LV2.4
Inverter (backlight): SSB460HB20S
Power Supply (PSU): 1-878-599-11 A-1660-728-A
PWM Power: CXD9969P, MIP2H2, LX1692, BA2901SF
MainBoard: 1-878-942-12 - A-1663-964-B
IC MainBoard: CPU: MC10147F1 410, MB91F313A, NAND Flash: K9F1208UOC, EEPROM: 24C32
Tuner: BTD-HF422T
Control: IR: 1-879-119-11 (A-1671-630-A) & 1-879-367-11 (173075611)
Technical Specifications KDL-46V5610
SONY KDL-46V5610
General recommendations for repairing TV LCD
Possible manifestations of defects
- The SONY KDL-46V5610 TV does not turn on, does not respond to the remote control and buttons on the control panel, does not light up or blink with any indicators.
With such manifestations, a malfunction is most likely to be detected in the 1-878-599-11 power module. In this case, it is necessary to measure the output voltages in the secondary circuits of the converters, and if they are absent, check the health of the power switches and rectifier diodes for a possible breakdown (short circuit).
First of all, it is necessary to check the operability of the standby power converter implemented on the MIP2H2 PWM controller.
It should be remembered that in case of breakdowns of semiconductors in secondary circuits, the converter can usually work normally in emergency short circuit mode. There are no output voltages. And during short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and less often the current sensor at the source of the key.
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, frequency-setting and damping circuits, or elements of OOS (negative feedback) stabilization.
Chips PWM controllers (PWM) CXD9969P, MIP2H2, LX1692, BA2901SF are usually checked by replacing with obviously working ones.
- There is no image, there is sound, it is responding to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply to the inverter, you must ring in its converter power keys for breakdown and secondary windings of transformers for an open.
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 work, and after they are finished, 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 motherboard 1-878-942-12 should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). Board repair and replacement of CPU chips: MC10147F1 410, MB91F313A, NAND Flash: K9F1208UOC, EEPROM: 24C32 are carried out with the necessary equipment, and the corresponding element base. Faults associated with the application of BGA processor soldering technologies can be localized by the heating method.
If there is no reception of television channels, but the TV is working properly from external devices, first of all it is necessary to check the voltage of the BTD-HF422T tuner and update the software. The pulses from the I2C bus must be controlled with 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! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.
Service manual / schematic diagram ------------->  Sony KDL-32/37/40/46/52V5500, KDL-40V5610, KDL-46V5610 CHASSIS EX2L-Coriande

Service manual / schematic diagram ------------->  Sony 1-878-599-11 IP2 Power supply


 The appearance of MainBoard 1-878-942-12 is shown in the figure below:
1-878-942-12
1-878-942-12 can be used on TVs:
SONY KDL-46V5500 (Panel LTY460HB11), SONY KLV-32V550A (Panel LTY320HA03 A06), SONY KLV-40V550A (Panel LTY400HA12), SONY KLV-52V550A (Panel LTY520HB11), SONY KDL-46V5610 (Panel LTY460HB10), SONY KDL-32V5610 (Panel LTY320HA02), SONY KDL-32V5500 (Panel LTY320HA02).
The appearance of the power supply
Main features of the device SONY KDL-46V5610:
Installed matrix (LCD panel) LTY460HB10.
The matrix control uses the Timing Controller (T-CON) FS_HBC2LV2.4.
To power the backlight used inverter SSB460HB20S.
The necessary supply voltages for all nodes of the SONY KDL-46V5610 TV are generated by the power module 1-878-599-11, or its analogs using microcircuits CXD9969P, MIP2H2, LX1692, BA2901SF.
MainBoard - the main board (motherboard) is a module 1-878-942-12, using CPU chips: MC10147F1 410, MB91F313A, NAND Flash: K9F1208UOC, EEPROM: 24C32 and others.
The BTD-HF422T tuner provides TV reception and channel tuning.
Posted By: FRANK at 08:28
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