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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Monday 13 April 2020

REPAIR / SERVICING TV ERISSON 15LS01

Technical description and composition of the ERISSON 15LS01 TV, panel type and applicable modules. The composition of the modules.
ERISSON
Model: 15LS01
Chassis / Version: 8M32A, 8T84
Panel: SVA150XG04TB
Inverter (backlight): PCB-DA207B 533U-012590-00
PWM Inverter: TL5001C
MOSFET Inverter: P61AF, D1802 (3), 9435GM (8)
Trans Inverter: SED TNA-DA104
Power Supply (PSU): Adapter AD055S + 12V, 4A
MainBoard: 5800-A8T84E-01
IC MainBoard: 25P20 BD3888FS TDA9681TS TDA15521E / N1C80 HEF4052BT LM317M 4953P TDA1308, DC-DC 1501-50
Tuner: TDQ-6F6 / N126CVA
Control: Erisson fits PHILIPS
Specifications 15LS01
ERISSON 15LS01
General recommendations for repairing TV LCD
Possible malfunctions
- ERISSON 15LS01 does not turn on and does not show any signs of operability at all. Does not blink indicators and does not respond to control buttons.
Failure in such cases should begin to look in the adapter power supply circuits.
This model of TV is equipped with an external power adapter adapter type 12V, 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 its output voltages, and in case of their absence, check the operability of the power switches of the converters and rectifier diodes for the probability of a short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work abnormally in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency-setting or damping circuits, as well as in Negative Stabilization Feedback. PWM microcircuits are usually checked by replacement with new ones, or obviously working.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn it on and immediately disappears
These manifestations can be triggered by a power module, or by defects in the inverter, as well as a distortion of the currents in the lamps due to their uneven wear. If all the electrolytic capacitors of the filter according to the inverter power supply are serviceable, you should make sure that the lamps are working, then you need to check the converter keys and the secondary windings of the transformers.
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 PA20154 motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software).
Before changing the tuner TDQ-6F6 / W126D, if it is not possible to tune to television channels, make sure that there are supply voltages that need to be measured on the corresponding terminals of the tuner and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope
Once again, remind users! Attempts to repair the TV ERISSON 15LS01 on its own without the appropriate qualifications and necessary experience can lead to its complete unrepairability!



Main features of the ERISSON 15LS01 device:
Installed matrix (LCD panel) SVA150XG04TB.
To power the backlight, the inverter PCB-DA207B is used, it is controlled by the PWM controller TL5001C. A transformer SED TNA-DA104 is installed in the inverter converter. As power elements of the inverter, keys of the type P61AF, D1802 (3), 9435GM (8) are used.
To power all internal components of the ERISSON 15LS01 TV, an external adapter type AD055S + 12V, 4A is used.
MainBoard - the main board (motherboard) is a module 5800-A8T84E-01, using 25P20 BD3888FS TDA9681TS TDA15521E / N1C80 HEF4052BT LM317M 4953P TDA1308, DC-DC 1501-50 and others.
The TDQ-6F6 / N126CVA tuner provides TV reception and channel tuning.
Information from an alternative source:
LCD TV ERISSON 15LS01
Panel Type (Matrix): SVA150XG04TB
Motherboard :, 7002, 7003 - P15V / 330Q, 7004 - TDA15521E / N1C80, 7016 - HEF4052BT, 7090, 7094 - 17-33L, 7077 - LM317M, 7098, 7099 - 1517AW, 7102 - 24C32AN, 7104 - 39VF020 / 70- 4C-NHE, 7118 - 4953P, 7200 - TDA1308, 8361 - 1501-50 / 0620GL, Tuner - TDQ-6F6 / N126CVA, SAW - K7257M & KK9650M
Invertor :, U1 - TL5001C, U2 - P61AF, Trans: SED DA104 0607 B GP
PSU: - external, + 12V, 4A TV scheme
Additional technical information about the panel:
Brand: SVA-NEC
Model: SVA150XG04TB
Type: a-Si TFT-LCD, Panel
Diagonal size: 15.0 inch
Resolution:1024x768, XGA
Display Mode: TN, Normally White, Transmissive
Active Area: 304.128x228.096 mm
Brightness: 250 cd / m²
Contrast Ratio: 450: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 60%
Response Time: 3/9 (Tr / Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 20 pins
Voltage: 3.3V


 Trademark: ERISSON, Model: 15LS01.
Shortly from the TV: LCD, diagonal 15 ".
The composition uses the MainBoard 5800-A8T84E-01 and the LCD panel (matrix) SVA150XG04TB.
Power supply unit external Adapter AD055S + 12V, 4A.
TV ERISSON 15LS01 with LCD SVA150XG04TB, diagonal size 15 "4: 3 format. The brightness of the screen is 350 cd / m² backlight fluorescent lamps CCFL (EEFL). Contrast, as the ratio of maximum brightness to minimum, is 400: 1. Input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC .. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p.
The power of the speaker system of sound 5 W (2x2.5 W) provide two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), component, SCART, VGA. An output for connecting headphones is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
The power consumed by the TV in the operating mode from the network is 40 watts.
Overall dimensions: 460x355x156 mm.
TV Weight: 3.7 kg.
Attention! The SVA150XG04TB panel of an ERISSON 15LS01 LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!
Posted By: FRANK at 05:58
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