After dinner, I went back to my room as usual, continued to operate the computer, and designed the circuit diagram with the upgraded CAD software.

In addition to subwoofer speakers, Duan Yun also plans to design another set of car radios to become a new product in his factory.

Although in terms of technical difficulty, car radios are far inferior to car gearboxes, but in fact, if you want to make a car radio with excellent performance, you also need to solve a lot of technical thresholds.

Because unlike home radios, the radio on the car is always in motion, and the direction is constantly changing, so how to keep the signal from distortion is a very difficult problem.

Another point is that because some trucks are always in a bumpy state when driving on mountain roads, how to keep the radio in such harsh conditions, the electronic components are not damaged, and can still work normally, which is also a problem that needs to be considered when designing car radios.

Duan Yun bought a second-hand car radio from a large automobile factory before, and through the analysis of the internal originals, he has mastered the design level and basic structure of the car radio in this era.

Duan Yun skillfully tapped the keyboard, and a new circuit diagram was quickly designed, and through the printer, it quickly became a complete drawing.

Duan Yun plans to go to the factory tomorrow with this drawing, let the workers make the circuit board according to this drawing, and then carry out a series of follow-up test work, first install it in his own 212 jeep, and then make improvements after a period of trial.

"Xiaoyun!" suddenly shouted her mother, who was watching TV in the big house at this time.

"Mom, what's the matter?" Duan Yun put the drawings on the table, got up and walked quickly to his mother's room.

"This is your factory's advertisement, right?" said to Duan Yun with her mother, Gao Xiuzhi, pointing to the TV screen.

"Huh?" Duan Yun was stunned for a moment when he heard this, and then looked at the TV screen.

Sure enough, on the TV screen at this time, with a burst of rhythmic rock music accompaniment, Cui Jian danced the wind and space, writing dynamically, and the background was a row of various models of stereos printed with the "Tianyin" trademark.

Although Cui Jian is a rock musician, but influenced by European and American pop music in that era, he is also a master of dance, Cui Jian's space steps in the advertisement are not inferior to Michael Jackson, and the leather jacket he wears printed with the red star logo looks very eye-catching, with this magical dance step, it is indeed very trendy.

Even though Duan Yun had seen Cui Jian's rehearsal before, he still felt that his dance was very magical at this time, and people couldn't help but feel a little like dancing along.

The time of the advertisement was only 30 seconds, and when the slogan "Tianyin subwoofer, the strongest voice of the times" sounded at the end of the screen, Duan Yun had an indescribable feeling in his heart.

Although it is not known whether their factory's advertisements can surpass the classic advertisements of Yanwu tape recorders, there is no doubt that their advertisements are significantly more entertaining and eye-catching than the hard advertisements shot by other manufacturers.

"Xiaoyun, you didn't shoot this advertisement well, why did you find a little hooligan to be an actor, wearing bells and whistles, I don't feel like a good person. Gao Xiuzhi was obviously not very happy with this advertisement.

"Mom, they are famous singers in Beijing, why do you say that they are little hooligans?" Duan Yun said with some tears and laughter when he heard this.

"Anyway, I can't see it, if I want me to say that Qingyan should be allowed to shoot this advertisement, Qingyan's girl is beautiful, no worse than those stars on TV, even if he is allowed to go up and sing a song, he is better than this little rascal......" Gao Xiuzhi said with a pout.

"Hahaha!" Duan Yun laughed when he heard this, and said, "Okay, let Qingyan go up and sing next time I shoot an advertisement." ”

Duan Yun also knew that her mother saw Cheng Qingyan as pleasing to her eyes, so she didn't bother to argue with her, she just had to follow her words.

Although her mother has always been in the name of the legal representative of Tianyin Electronics Factory, in fact, Gao Xiuzhi is not interested in the electronics factory opened by her son, because in her opinion, her son has made enough money, and she only thinks that her son can marry Cheng Qingyan into the door as soon as possible, and she can hold her grandson as soon as possible.

After Duan Yun returned to the house again, he lay directly on the bed with his head on his back.

Now that the advertisement of the audio electronics factory has been broadcast on CCTV today, Duan Yun is also very satisfied with this advertisement, but it is still unknown how many orders it can bring after the advertisement is broadcast.

In fact, Duan Yun didn't expect his set of advertisements to have the phenomenal advertising effect of Yan Wu tape recorder, as long as he could earn back 600,000 advertising fees, and had funds to maintain the normal operation of their factory next year, it would be better if he could earn a little more, and it didn't matter if he made a little less.

Duan Yun's prospect for the future of the electronics factory is to occupy the domestic speaker electronics market with the two fist products of subwoofer speakers and car recorders, and will continue to upgrade the technical content of the products, sell their subwoofer speakers and car recorders to foreign markets, and make money from foreigners, which is Duan Yun's ultimate goal.

But sometimes strength is not enough to do business, he also needs timing and luck, life is actually a gamble sometimes, and only a few lucky people can reach the peak of life......

......

On the morning of the second day, Duan Yun came to the factory as usual, and just when he entered the office to change his clothes and prepare to go to the workshop to inspect, the phone on the desk suddenly rang.

"May I ask who you are?" Duan Yun asked after picking up the phone.

"Is it Tianyin Electronics Factory......" The voice on the other end of the microphone was a little small, and some noise of electricity could be faintly heard.

In these years, long-distance calls need to be transferred, and sometimes the signal is not very good, which is also unavoidable.

"Yes, this is Tianyin Electronics Factory?" Duan Yun replied.

"That's right, I saw your advertisement on TV yesterday, and I don't know what the quality and price of your factory's speakers are, so I want to go over and take a look......"

"Welcome, welcome!" Duan Yun's eyes lit up when he heard this, and then said: "Our factory welcomes merchants from all over the country to visit and negotiate with the factory at any time, when will you come?"

"It's hard to buy train tickets now...... Can you do it after the New Year?" asked the man on the other end of the phone.

"Of course it's no problem, it's okay like this, you leave your name and the time you came, and I'll be ready to receive you in advance." Duan Yun said.

In fact, Duan Yun also knows that at present, the railway has entered the Spring Festival stage, and the passenger traffic across the country is quite large, and it is very difficult to buy a train ticket.

And if these merchants come later, then Duan Yun's audition room will definitely be completed, which is just right for Duan Yun to promote audio products......