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-40S5600

Technical description and composition of the SONY KDL-40S5600 TV, panel type and applicable modules. The composition of the modules.
SONY
Model: KDL-40S5600
Chassis / Version: EX2N
Panel: LTY400HA12 A02
T-CON: NP_HAC2LV1.1
Inverter (backlight): SSB400W12S01 Rev0.1 HANSOL
PWM Inverter: 2903
MOSFET Inverter: 2903
Power Supply (PSU): 1-879-646-11 (A1708948A)
PWM Power: CXD9969P (16), MIP2H2 (7), LX1692FIDW
MOSFET Power: K10A60D K8A60D
MainBoard: 1-878-999-11 A (Y2008590B)
IC MainBoard: PNX85433EH / M2 / 2008C, NAND512W3A2CN6F, EDE5116AJBG, M25P10, M24C64TDA9995HL, M24C64, TDA10048HN
Tuner: ENG37E10KF
Control: RM-ED017
Technical Specifications KDL-40S5600
SONY KDL-40S5600
General recommendations for repairing TV LCD
It is reasonable to start the repair of the SONY KDL-40S5600 TV with a careful external inspection before proceeding to the diagnosis of the malfunction. It is advisable to carefully internal and external components. Visible damage to elements can sometimes suggest further directions for finding a defect before starting the necessary measurements. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, it does not make any sounds or any signs of operability when it is turned on, there is a certain chance that the IP1f 1-879-646-11 (A1708948A) power supply module is faulty and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, but this happens much less often. If the mains fuse is broken in the power supply, in most cases a breakdown of the power switch K10A60D K8A60D is detected, which can be integrated with a PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
The reasons for the breakdown of the power switch of the flyback converter of the power supply module can be different, for example, a malfunction of semiconductor cells or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller CXD9969P (16) MIP2H2 (7) or broken resistors in its bundle .
In cases where the Power Factor Corrector (PFC) is used in the power supply, troubleshooting can be a bit more complicated.
Sometimes the SONY KDL-40S5600 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including in the power supply unit (power supply unit).
When repairing the SSB400W12S01 Rev0.1 HANSOL inverter, it is often necessary to turn off the protection for diagnostics, which, for the purpose of fire safety, turns it off in any emergency situation, for example, in the event of a malfunction or uneven wear of the lamps, which makes it difficult to find a defect.
All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
The motherboard 1-878-999-11A (Y2008590B) must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the power supply circuits of the microcircuits are working, a software update may be necessary.
Before replacing the ENG37E10KF tuner, if there is no tuning to the channels, you must first check the supply voltage at its terminals, including the varicap supply (30-33V).
Attention to the owners! Attempts at self-repair of the SONY KDL-40S5600 TV are not recommended by the manufacturer and can lead to serious negative consequences!
Service manual / schematic diagram ------------------>   Sony KDL-32/37/40S5600 chassis EX2N-Peppermint


 The appearance of MainBoard 1-878-999-11 is shown in the figure below:
1-878-999-11
1-878-999-11 can be used in TVs:
SONY KDL-32S5600 (Panel LTY320HA03 A02), SONY KDL-37P5600 (Panel T370HW02 V.B.), SONY KDL-40S5600 (Panel LTY400HA12 A02).
The appearance of the power supply
Main features of the device SONY KDL-40S5600:
Installed matrix (LCD-panel) LTY400HA12 A02.
The matrix control uses the Timing Controller (T-CON) NP_HAC2LV1.1.
The SSB400W12S01 inverter is used to power the backlight lamps, it is controlled by the PWM controller 2903. Type 2903 keys are used as power elements of the inverter.
The necessary supply voltages for all nodes of the SONY KDL-40S5600 TV are generated by the power module 1-879-646-11, or its analogs using microcircuits CXD9969P (16), MIP2H2 (7), LX1692FIDW and power switches of the type K10A60D K8A60D.
MainBoard - the main board (motherboard) is a module 1-878-999-11, using chips PNX85433EH / M2 / 2008C, NAND512W3A2CN6F, EDE5116AJBG, M25P10, M24C64 TDA9995HL, M24C64, TDA10048HN and others.
The ENG37E10KF tuner provides TV reception and channel tuning.
Posted By: FRANK at 06:56
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