RevoxB150 power amplifier power board disassembly and maintenance method?

The power strip of the power amplifier is removed and repaired, which means that you can first disassemble his screws as a whole, and then you can use the multimeter for measurement and maintenance.

Regarding the method of disassembling and repairing the power strip of the power amplifier you asked, it is recommended that you ask for a circuit diagram through the merchant's customer service and then repair it, or go directly to the repair office designated by the brand and let the after-sales personnel deal with it.

The power motherboard is an internal part, and when you open the inside of the machine, there will be screws.

This power amplifier power board is still relatively simple to disassemble and repair, just follow the regular instructions to operate.

The method of disassembling and repairing the power board of the power amplifier you mentioned should first be dynamic power supply, and then measure the quality of the components, find out the faulty components, and then plug in the power supply again after replacing them.

After this kind of power strip is disassembled, it is necessary to find the damaged place first, and then it can be removed.

If you don't know how to get this, don't do it yourself, you have to make a lot of money as soon as possible.

If you don't know how to disassemble and repair it, try to find some special after-sales service, and then let them replace it directly.

There are many ways to disassemble and repair the power board of this model, you can consult the maintenance department.

In this regard, it is necessary to find the specific cause of his failure, only in this way can it, in general, professional tools are required.

Household electricity copy

The safety standards are divided into five categories: Class 0, Class 01, Class 1, Class 2 and Class 3

Class 0: This type of electrical appliance only requires the live part to be isolated from the shell, and there is no grounding requirement. This type of appliance is mainly used in places that people can't reach, such as rectifiers for fluorescent lamps.

Class 01: This kind of electrical appliance has industrial insulation, with grounding endpoints can be grounded or not grounded, used in a dry environment (indoor with wooden floors), can be ungrounded, otherwise it should be grounded, such as electric soldering irons, etc.

Category 1: There is working insulation, with ground end and ground wire, and it is specified that it must be grounded or zeroed. The grounding wire must be made of yellow-green copper core wire, and the contact with the electric cathode should not be large ohms.

Category 2: This type of electrical appliance adopts double insulation or reinforced insulation, and there is no grounding requirement. In addition to working insulation, there is also independent protective insulation or effective electrical isolation. This type of electrical appliance has a high degree of safety and can be used for appliances that come into contact with the human body.

Category 3: All kinds of electrical appliances that use safe voltage (below 50 volts), such as razors, electric blankets and other electrical appliances. In environments where it is not safe to ground and is not dry, it is necessary to use products with safe voltages.

Category 1 home appliances: TV, refrigerator, washing machine, air conditioner; Class 2: ***, audio, tape recorder, etc.

The main distinction is in the input.

Copy. Class II electrical appliances only have two inputs, and BAI does not have additional grounding pins. This requires that DU electrical appliances must be insulated.

dao。It should also be marked on the label"back"Mark. It does not rely solely on basic insulation, which can pose a risk of electric shock to humans or animals if the primary insulation fails.

Therefore, on the basis of basic insulation, the second class of electrical appliances should be supplemented with supplementary insulation, which is to strengthen the insulation. In this way, even if the basic insulation fails, there is a layer of insulator protection. Therefore, compared with the first class, the safety requirements of the second class are more stringent.

For example, the insulation withstand voltage and leakage current are higher than the first class.

Class I appliances are a bit higher in terms of safety than Class II.

The power board provides a variety of voltage outputs, the computer version processes the data according to the program, and the control board receives the control signal of the computer board to control the specific circuit on/off.