Repair of digital TV set-top box. ORIEL firmware Download ORIEL firmware file

The fleet of analog TVs is rather reluctant to give way to digital equipment, gradually taking “second” places - in the kitchen, in offices, workshops, garages, etc. At the same time, DVB-T2 set-top boxes and decoders are being transferred. We have already managed to evaluate the advantages of the latter, while some owners also appreciated the disadvantages - the rather low reliability of these devices. As a rule, one of the weakest points of this kind of equipment is a switching power supply - most cases of failures are associated precisely with a malfunction of the power supply, and a PSU failure can lead to such serious consequences that it will be impossible to repair the device. And yet, using the example of two set-top boxes for receiving digital TV, the possibility of repairing them independently will be considered here. The first device is TVK 3101. When turned on, the image had strong distortions, periodically completely disappeared. A few days later, the set-top box began to turn off a few seconds after the manufacturer's logo appeared on the screen.

The second device is the Oriel 740 prefix. This device did not respond to commands from the remote control, the indicator barely noticeably glowed red.

After opening the cases of the set-top boxes, it turned out that in both cases the electrolytic capacitors of the secondary power filters were swollen.

It should be borne in mind that when working with the attachment, special care should be taken - the primary power supply rectifier of the PSU converts an alternating voltage of 220 volts into a constant value of about 300 volts, and this potential remains at the terminals of high-voltage electrolytic capacitors for some time after power is removed - up to several tens of seconds . In the pictures, they are located between the pulse transformers and the plugs of the power cords. Before working with the device board, these capacitors must be short-circuited through a resistor with a resistance of 51-62 kOhm.

Both faulty capacitors turned out to be almost the same - 1000 uF, 10 V. The picture shows one of them. The fact that its cover is barely deformed in appearance should not give you the slightest confidence that the part is in good condition - even if some part of the container is preserved, such a part will have an increased leakage current, which is unacceptable. When replacing, you should select capacitors with the same operating voltage or with a slightly higher one, as in the picture - instead of a 10-volt part, a 16-volt part is shown, and with the same dimensions. Of course, defective parts should be replaced with new ones, not used ones - otherwise the repair will have to be repeated soon.

After the replacement, turn on the set-top box - the indicator lights up brightly, the device responds to the commands of the remote control, the image is stable. But the repair is not over yet...

Traces of flux remained on the board - solder paste, rosin ... High-frequency currents can quite easily pass through such a coating wherever they please. As a result, we can get an unstable image, noise, etc. over time. trouble. Therefore, carefully wash the board with a cotton swab moistened with alcohol or acetone. After such cleaning, wipe the board with a dry cotton swab

We install the board in place, check - it works.

Now we assemble the prefix completely and once again check the performance.

Similarly, we check the second device - the device is working normally, the repair is completed.

In conclusion, I will add that the quality of the power supply of the antenna amplifier also greatly affects the operation of the set-top box. So, with insufficient capacity of the filtering capacitor, signal loss is possible - there have been cases of complete loss of the channels of the second multiplex. To recognize a malfunction of the antenna PSU, it is enough to replace it with a DC source with a voltage of 9-12 volts (for example, a Krona-type battery or a battery from a computer uninterruptible power supply). If the reception quality improves, then you should replace the antenna power supply with a known good one.

oriel750 — packaging, general view

The receiver is designed to view digital TV in the dvb t2 standard

Bright packaging, made of cardboard.

Oriel 750 Receiver Overview - Factory Information

The receiver is made in China, by order of a Russian company.

All information about the manufacturer is on the box.

oriel750 - kit, device, remote control, manual

The package includes:

1. apparatus.

3. batteries.

4. operation manual.

5. packing.

oriel750 - general view

1.The body is made of plastic.

2. The device is not large.

3. For comparison, we will show an apparatus with a box of matches.

oriel750 - rear view

The device has the following connectors for connection:

1. RF input - for connecting an antenna.

2. RF output - for connecting a second device.

3. HDMI output.

4. tulips.

5. mains plug.

oriel750 - device + remote control

There is a USB port on the front panel.

through it you can connect an external drive with which:

1. You can listen to music.

2. You can watch movies.

3. record music and movies.

4. watch photo.

oriel750 - remote control

using the remote control you can:

1. switch channels.

2. change the volume.

3. turn off the console.

4. record TV programs.

5. use additional services.

oriel750 - connect to tv

The wiring diagram is very simple and clear.

You can find it on our connection diagram.

oriel750 troubleshooting

main faults:

1.Not glow indication. (check if there is electricity in the outlet, check if the plug is connected to the outlet)

2. No sound. (check cord, check volume)

3. No response to the remote control. (check the batteries, check if there is any obstruction in front of the IR sensor)

4. No signal. (check if the antenna is connected)

oriel750 - specifications

frequency range that the tuner is capable of receiving: 174-230 MHz, 470-862 MHz

signal level 15-70 dbm

mains voltage - 220-240 V, 50-60 Hz

power consumption - 8 watts.

Updating the software (firmware) of your equipment is performed only in cases where there are any problems, or the update will add useful functions to the device. It is not recommended to flash devices without the need, because. during the firmware update process, there is a possibility of equipment failure. If you are not sure that you can handle the firmware update yourself, we recommend that you contact the appropriate service center with qualified specialists.

Download ORIEL firmware file:

Oriel 810 Receiver Firmware File - (version 3.4) This update only applies to receivers with serial numbers 81111200001 to 81111205050 and 81120100001 to 81120106060. .
Oriel 820 receiver firmware file - (version 1.0 from 08/01/2012). This update only applies to receivers with serial numbers 82120100001 to 82120105280. .
Oriel 710 receiver firmware file - (version 1.3.5). This update only applies to receivers with serial numbers 710121000001 to 710130211200.
Oriel 720 receiver firmware file - (version 1.3.5). This update only applies to receivers with serial numbers 720121000001 to 720130202200.
Oriel 910 receiver firmware file - .
Oriel 920 receiver firmware file - .

Official website of the manufacturer:

You can check the availability of newer software on the official website of the manufacturer -
Questions about ORIEL brand equipment, you can ask through.

How to update the firmware:

Proceed as described in the user manual. If this information is not in the manual, then contact the technical support of your equipment.

Useful links:

In order to unzip the firmware file, you may need an archiver program. One of the most popular is .

Manufacturers:

You can add the latest software for your equipment by writing to us via .