Introduction of Pioneer Electric Appliance Company:
Pioneer electric appliance group co., ltd was established in 1993. Located in Binhai Development Zone, Cixi, Ningbo, which is known as the hometown of small household appliances in Hangzhou. Its company mainly produces three series of products: heaters, water dispensers and electric fans. The company has a professional R&D small household appliances team and a professional production and quality management team. Our company takes honesty, innovation, persistence and gratitude as its core values and strives for first-class everywhere. Thanks to the company's efforts, we have made great achievements and won many titles such as "National Inspection-free Products" and "China understands products". According to the statistics of China National Business Information Center, since 2002, the heater of Pioneer Electric has been ranked first in the domestic market for nine consecutive years and entered the top three in global sales.
Introduction of Pioneer Electrical Products:
The difference between Pioneer electric fan and other electric fans lies in that it adopts advanced high-efficiency and energy-saving aluminum nuclear power machine, has a number of patented scientific research technologies, and adopts the design of five blades. The biggest feature is the original colorful double-edged, giving you the coolest feeling; Pioneer heater has more than ten years of production experience, and has a number of international invention patents, with an annual output of more than 10000 sets, which sell well overseas.
Xianfeng electric after-sales service:
Its after-sales commitment is that consumers can enjoy one-year warranty service with invoices from the time of purchase. Products with quality problems within seven days of purchase can be returned unconditionally, and those with quality problems within 15 days can only be returned. The products are maintained free of charge during the warranty period, and the corresponding fees are charged according to relevant regulations outside the warranty period.
Maintenance of Common Faults in Xianfeng Audio
Pioneer) GR-777 audio equalizer R channel distortion, sound tearing.
Through the comparative inspection of the left and right channels, monitor the relevant key points of the two channels with high-resistance headphones, and judge that the motherboard (the big board below the rear of the fuselage) is faulty. Then, by comparing the two channels, it is found that the resistance of pin IC3 12(LC7522)(2) of R channel is only about 4K. Compared with the normal L-channel IC3 1 1(2) pin, the resistance value is about 13K. After disconnecting pin (2) of IC3 13 from pin (2) of IC312, the resistance value returned to 14K, and the sound returned to normal, because there was no LC at hand.
Trouble: Pioneer DVL-909 can't read the CD.
Analysis and treatment: when the machine is powered on, the machine enters and exits the box normally, but the disk is not read. Open the lid and find that the laser head has no focusing and tracking action. When moving by hand, the laser head slides back and forth normally, and there is no obstacle, indicating that the fault is not in the mechanical part, but probably in the circuit. It is found that the laser head will move back and forth when the power is turned on, and the objective lens of the laser head will move up immediately, but it will not fall back. After loading the CD, observe that the laser head does not move. Digital multimeter is used to measure the output voltage of focus drive module. Usually, in the standby state, the focusing and tracking circuit should not have voltage output. Looking forward along the train of thought, it is found that the input of the focused signal amplification integrated block LA9425 is normal, but the output is abnormal, and it is suspected that the integrated block LA9425 is damaged. After switching to the new LA9425, everything is normal. Troubleshooting.
In contrast, when you buy and choose electrical appliances, Bian Xiao suggested that you first consider choosing those big brands with good reputation, such as Midea, Gree and Pioneer Electric Appliances. But if you are unfamiliar with a certain brand, you can also search the company's evaluation and reputation online, so that the things you buy back will make people feel the most reliable and satisfied. After the above explanation by Tuba Rabbit Bian Xiao, do you have a deeper understanding of Pioneer Electric's after-sales service?