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-48W605B

Technical description and composition of the SONY KDL-48W605B TV, panel type and applicable modules. The composition of the modules.
SONY LED
Model: KDL-48W605B
Chassis / Version: RB2G
Panel: LSY480HN01-001
LED backlight: 48FAXH49 48FBXH49 1-889-674-12
LED driver (backlight): 1-889-655-11 (173474411) LD-HM
Power Supply (PSU): ACDP-085N02 Adapter 19.5V, 4.35A
MainBoard: 1-889-202-22 (173457422) BAX L
IC MainBoard: X-Reality PRO CXD4748GB, Nand TC58NVG3SOFTAIO
Tuner: TUS1-889-203-13 (173457513)
Control: IR: 1-889-678-11 (173475611)
Technical Specifications KDL-48W605B
SONY KDL-48W605B
General repair guidelines for TV LCD LED
Possible malfunctions
- The SONY KDL-48W605B TV does not turn on. The control lights do not light or flash. On the remote control and other control buttons does not respond.
With such manifestations, in most cases, the Adapter power module is faulty.
This TV model is equipped with an external adapter type power supply, which the owner can purchase independently, and repairing it may not always be advisable, however, sometimes it makes sense to open it and eliminate simple typical defects typical of IPS. It is necessary to measure the secondary output voltage, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during a short circuit in the 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, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. The PWM chip can also cause a malfunction of the power switch of the converter and is checked by replacement.
- 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
As a rule, in such cases there is no display backlight. The reason can be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
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. 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 an indicator of health. In the event of a LED malfunction, its zener diode will either be cut off or broken into short-circuit.
- 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 1-889-202-22 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, 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 X-Reality PRO chips CXD4748GB, Nand TC58NVG3SOFTAIO and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
If a tuner TUS1-889-203-13 (173457513) is suspected of malfunction, first of all, it is necessary to verify the correctness of the software, as well as the presence of the necessary supply voltage levels and data exchange pulses with the processor via the I2C bus at the corresponding tuner pins.
Attention! For users and owners of KDL-48W605B TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-repairability of the device.

 Service manual / schematic diagram ------------->  Sony CHASSIS RB2G 

FOR MODELS
KDL-40W580B, KDL-48W580B, KDL-60W600B, KDL-40W590B, KDL-48W585B, KDL-60W605B, KDL-40W600B, KDL-48W590B, KDL-60W607B, KDL-40W605B, KDL-48W600B, KDL-60W608B, KDL-40W607B, KDL-48W605B, KDL-60W610B, KDL-40W608B, KDL-48W607B, KDL-60W630B, KDL-48W608B, KDL-60WM15B, KDL-48WM15B
1. Service Manual 47 pages of 2014 FOR  the models ----------------------> KDL-40W580B, KDL-48W580B, KDL-60W600B, KDL-40W590B, KDL-48W585B, KDL-60W605B, KDL-40W600B, KDL-48W590B, KDL-60W60760, , KDL-48W600B, KDL-60W608B, KDL-40W607B, KDL-48W605B, KDL-60W610B, KDL-40W608B, KDL-48W607B, KDL-60W630B, KDL-48W608B, KDL-60W15.
2. Service Manual 47 pages of 2014 FOR  the models ----------------------> KDL-40W580B, KDL-48W580B, KDL-60W600B, KDL-40W590B, KDL-48W585B, KDL-60W605B, KDL-40W600B, KDL-48W590B, KDL-60W60760, , KDL-48W600B, KDL-60W608B, KDL-40W607B, KDL-48W605B, KDL-60W610B, KDL-40W608B, KDL-48W607B, KDL-60W630B, KDL-48W608B, KDL-60W15.
3. Service Manual 30 pages of 2014 FOR  the models ---------------------->  KDL-32W700B, KDL-40W607B, KDL-40W580B, KDL-40W609B, KDL-40W700C, KDL-48W730C, KDL-40W590B, KDL-42W700B, KDL-42W800B, KDL-42W800B KDL-40W600B KDL-48W590B KDL-40W600B KDL-48W600B KDL-40W605B KDL-48W605B KDL-48W607B KDL-48W609B KDL-48W700C -50W805B, KDL-32W700C, KDL-55W700B, KDL-55W790B, KDL-55W800B, KDL-55W807B, KDL-55W950B, KDL-55W955B, KDL-55W957B, KDL-60W605B60 KL6060BB 60DB6060B60 60B60 60B60 KL 60 KDL-60W840B KDL-60W850B KDL-60W855B KDL-60W857B KDL-65W950B KDL-65W955B KDL-70W830B KDL-70W840B -43W780C, KDL-42W815B, KDL-42W817B, KDL-42W828B, KDL-48WM15B, KDL-60WM15B, KDL-55X830B, XBR-85X955B, KDL-65X830B, XBR-85X958B, XBR-49XB8BB, XBR-49BX50BB, XBR-85XBB-49BB , XBR-55X800B, XBR-55X850B, XBR-55X855B, XBR-55X900B, XBR-55X905B, XBR-65X800B, XBR-65X850B, XBR-65X855B, XBR-65X857B, XBR-65X90B, XBR-65X90B, XBR-65X90B, XBR-65X90B, XBR-65X90B, XBR-65X90B, BR-65X950B, XBR-65X955B, XBR-70X850B, XBR-70X855B, XBR-79X900B, XBR-79X905B, XBR-79X907B, XBR-85X950B, XBR-85X955B, KD-49X8500B, KD-49X8500B, KD-49X8500B, KD-49X8500B, KD 55X8500B, KD-75S9000B, KD-79X9000B, KD-85X9500B, KD-65S9000B, KD-65X8500B, KD-49X8500B, KD-55X8000B, KD-55X8500B, KD-55X9200B, KD-65X8500B, KD-65X8500B, KD-65X8500B, KD-65X8500B, KD-65X8500B, KD KD-65S9000B, KD-65X9500B, KD-65S9000B, KD-65X9500B, KD-65X8000B, KD-70X8500B, KD-70X8500B, KD-75S9000B, KD-79X9000B, KD-85X9500B, KD-49X550B, 55D850DB 55X9005B, KD-65S9005B, KD-65X8505B, KD-65X9005B, KD-65X9505B, KD-70X8505B, KD-75S9005B, KD-79X9005B, KD-85X9505B.



 The appearance of MainBoard 1-889-202-22 is shown in the figure below:
1-889-202-22
1-889-202-22 can be used in TVs:
SONY KDL-42W817B (Panel T420HVJ02.1), SONY KDL-42W706B KDL-42W706W (Panel T420HVF06.1), SONY KDL-40W605B (Panel NS4S400DND01 4-528-221-02), SONY KDL-42W705B (Panel T420HVF06.0 xxxxG), SONY KDL-50W817B (Panel T500HVF04.1), SONY KDL-42W828B (Panel T420HVJ02.0), SONY KDL-48W605B (Panel LSY480HN01-001), SONY KDL-32W706B (Panel T320HVF04.1 ).
The appearance of the power supply
Main features of the device SONY KDL-48W605B:
Installed matrix (LED panel) LSY480HN01-001.
The LED driver 1-889-655-11 is used to power the backlight LEDs.
An external source of the ACDP-085N02 Adapter 19.5V, 4.35A type is used to power all internal components of the SONY KDL-48W605B TV.
MainBoard - the main board (motherboard) is a 1-889-202-22 module, using X-Reality PRO CXD4748GB, Nand TC58NVG3SOFTAIO, and others.
The tuner TUS1-889-203-13 (173457513) provides the reception of television programs and tuning to channels.
Posted By: FRANK at 09:12
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