Reborn Tokyo Golden Age.

Chapter 324
If you want to come up with something at the explanation meeting at the end of the month, you must have dry goods.

Where does Baichuan Electric's dry goods come from? Of course it is SIC.

"Brother Nakajima, are you sure there is no problem?"

Bai Chuanfeng carefully held the machine in his hand, with a suspicious expression on his face.

"Cough~" Heitaro Nakajima said a little uncertainly, "It should be fine, if it's just for a press conference, it's probably not bad."

should?After Bai Chuanfeng heard what he said, his face became more cloudy and uncertain.

This is something to be displayed at the public offering briefing, and it must not be out of the basket.

Bai Chuanfeng decided to actually try the performance of this prototype, so he supported the machine with one hand, and pressed the switch with the other hand.

Swipe, a line of crescent white "KITA" logo pops up on the bright black LCD screen. The bright white display effect makes the black machine look mysterious and technological.

After waiting patiently for two seconds, as the interface was loaded, bursts of music came from the speaker on the table soon.

Well, yes, the sound is clear and clear, much better than tape machines.

Especially the clean voice, there is no background noise at all.

The rustling of tapes and vinyl backgrounds is noise by comparison.

Sure enough, the advantages of digital music over analog music are too great, and this is the mainstream of future audio technology development.

That's right, what Bai Chuanfeng is holding in his hand at the moment is the portable CD player of Bai Chuan Electric.

After nearly a year of tossing, the huge and bulky desktop CD player before has been successfully slimmed down.

The size is similar to the size defined by Bai Chuanfeng last year, slightly larger than a CD case, and the thickness is about the height of 4 CDs stacked up.

To be honest, from the perspective of future generations, it is still not frivolous enough, but too thick.

But in this day and age, miniaturizing a desktop CD player to this extent is already a black technology.

However, the reason why Shirakawa Electric can miniaturize the portable CD player to this extent is actually suspected of "cheating".

Why do you say that?Just look at the other battery box that Bai Chuanfeng is holding in his hand.

This portable CD player is powered solely by an external battery box.

The working mode of the CD player is completely different from that of the tape drive. It needs the laser head to irradiate light waves to read the information on the disc surface, and also needs the high-speed rotation of the motor to drive the disc to rotate.

In addition, the DAC chip inside the machine decodes the information at the same time, and restores it to sound waves to output sound through the power amplifier system.

There is no doubt that its power consumption and rated current requirements are much higher than that of tape drives, and ordinary AA dry batteries can't move them at all.

So in order to solve the power supply problem, Heitaro Nakajima and the others could only install the No. 2 battery with a larger capacity.

As we all know, the No. 2 battery is too thick compared to the No. 5 battery, and it is slightly thinner than the No. 1 battery in the flashlight we used when we were young.

The portable CD player of Shirakawa Electric needs at least 4 AA batteries to work normally, and only in this way can the machine retain enough battery life.

It is too difficult to integrate four thick No. 2 batteries into the interior of the portable CD player.

If you insist on doing this, the current portable CD player will have to be bigger.

Bai Chuanfeng looked at the thick CD player in his hand and shook his head.If that's the case, the so-called portable is just a title.

So the best choice is to separate the electromechanical, and make an external battery box for the CD player, which looks much smaller.

Although there is an extra battery box like a power bank, it is still portable.

Look, Bai Chuanfeng took it for two steps, there was no problem at all.

And considering the use scenario, Baichuan Electric also reserved a 110V mains power interface for this portable CD player when designing.

That is to say, it can also be used when plugged in at home. If you take it out, you will rely on the battery in the battery box.

Although it looks sloppy, it is still much more advanced than Sony's desktops.

Satisfied, Bai Chuanfeng turned the CD player in his hand, tsk, it still looks good.

"Hey~" Suddenly the speaker on the desk stopped, and there was no more music coming from it.

Heitaro Nakajima next to "Uh" was embarrassed, and Hiroshi Ogawa who was a little behind was blushing.

Bai Chuanfeng was stunned for a moment, then quietly put the CD player in his hand, and the moving music sounded again.

"Brother, the current model still needs to be improved, needs to be improved~" Heitaro Nakajima flushed with embarrassment.

After all, the current CD players are too fragile, and there is almost no shock resistance.If you move a little bit, maybe you will go on strike and quit.

Bai Chuanfeng shook his head, "There is still a little time, let's see if we can improve it, at least we must persist until the end of the briefing session."

"Hay, we have been continuously improving." Heitaro Nakajima also had difficulties.

Because according to expectations, Baichuan Electric's portable CD player was originally planned to be launched in October or November.

But in order to catch up with this press conference, the time was abruptly advanced by three or four months.

The time is already tight, and now it has been greatly compressed, and some small bugs are inevitable.

In fact, Bai Chuanfeng is not going to release a new model in July.

He wants to take out a finished machine to show the outside world first, as for the real launch, it will be launched to the market in October or November according to the original plan.

But now even the production line of CD players has not been built, and the only way to get a finished machine is to rub it by hand in the laboratory.

And this kind of handmade laboratory product, you don't need to think about it, there are always small problems.

But for the sake of this briefing, that's the only way to go.After all, most of the time, the plan cannot keep up with the rapid changes.

"How about our cost?" Putting down the CD player in his hand, Bai Chuanfeng began to care about another issue.

"Because the large-scale production has not yet been formally carried out, the specific cost details will be calculated now with errors.

But..." Nakajima Heitaro paused, "But judging from the current situation, the cost may not be optimistic. "

Bai Chuanfeng frowned, the so-called not being optimistic must have caused a lot of pressure on profitability.

"Tell me in detail, where the cost is problematic."

With his consent, Heitaro Nakajima immediately took a half-finished CD player from the table.

"Brother Bai Chuan, look, because many internal mechanisms are made of metal parts to resist earthquakes.

Their cost is much higher than that of ordinary plastics, and considering the problem of anti-interference, all internal compartments use copper sheets as the base material for signal shielding. "

Through the opened back cover, Bai Chuanfeng can clearly see the inside of the case, and there are many small modules wrapped in golden copper sheets.

Because the CD player works on the principle of digital signals, it is different from the tape player and is easily interfered by the outside world or even adjacent circuits.

In order to ensure the purity of the tone, each modular circuit can only be shielded separately.

The most common shielding method in electronic products is to use copper as a closed protection.

But seeing this scene, Bai Chuanfeng shook his head. "Brother Nakajima, this is too extravagant."

"Eh?" Nakajima Heitaro looked at him with some confusion, not understanding where the so-called luxury was.

"Copper is a precious metal. Although the signal shielding effect is very good, it can't be used in this way."

Bai Chuanfeng had to lament that people who make products in this era are still too honest, and everyone is a stacker.

"If it's just for anti-interference and signal shielding, we can use copper foil."

"Copper foil paper?!" Heitaro Nakajima seemed to have discovered a new continent with his shocked eyes as if he had been struck by lightning.

"Of course." Bai Chuanfeng nodded without hesitation, "Taking a step back, even aluminum is more cost-effective than copper.

Even more boldly, the copper foil is not used, and the aluminum foil is used directly. "

"This... this..." Heitaro Nakajima was dumbfounded.

Can you still play like this?
Heitaro Nakajima, who has been making products honestly, never thought of cutting corners like this?

In fact, not only him, most of Neon's brand materials are very conscientious.

Otherwise, how can the service life starting from 20 or 30 years be guaranteed?
Design is one aspect, but materials account for a greater reason.

Before today, no one has ever told Heitaro Nakajima that costs can be saved in this way.

After all, the design style has been formed for so many years, and everyone is used to it and takes it for granted.

In this era, neon brands basically attach great importance to the reputation of their products, and never thought of tampering with materials.

So it is conceivable that Nakajima Heitaro at this moment, after hearing Bai Chuanfeng's method of reducing costs, suffered a great shock in his heart.

"Brother Shirakawa, is this really okay?" Heitaro Nakajima could not hide his worry in his eyes.

The method is a good method, and the effect is absolutely immediate, but Nakajima Heitaro feels that his conscience is a bit difficult.

"Brother Nakajima..." Bai Chuanfeng looked at him helplessly, "From your professional point of view, do copper foil and aluminum foil have the ability to shield electromagnetic signals?"

"Of course, but the effect will be greatly reduced..."

Bai Chuanfeng interrupted his unfounded worries with a wave of his hand, "Brother Nakajima, what we are making is a portable CD player.

The so-called portable is actually simplified on the basis of the desktop, which means that its performance is weaker than that of the desktop in some respects.

It is no problem to use copper sheet as the shielding substrate and put it on the desktop.But portable CD players can't, because their positioning is different.

The price of desktops is as high as 20 yen, which is destined to be a luxury among music players.

It should be enough to spend on luxury goods, but the portable CD player is different. Its audience is young people with average spending power.

For them, the cool shape and the sound quality obviously better than the tape machine are enough.

The most important thing is that the price must be low enough so that our CD player can become a mass consumer product. "

Nakajima Heitaro was very troubled after listening to Bai Chuanfeng's discussion.

He knew that from the perspective of the club, Bai Chuanfeng was right.But as a designer, he really wants his work to be perfect.

But cost is the first factor in determining the product after all, Heitaro Nakajima sighed, he knew how to choose.

"Let's try it like this." Bai Chuanfeng patted the senior on the shoulder.

It's still rare, and the means of shielding electromagnetic signals in later generations are basically realized by metal foil.

It would be too extravagant to use ten copper pieces like now.

"Oh, by the way, the internal mechanism is also the same. If you can replace it with plastic, use plastic. As for the shockproof or next-generation products, we will think about it."

Hearing this sentence, Heitaro Nakajima, who was already a little tangled, gave a wry smile.

Still not dark enough.

No wonder others can become the founders of listed companies, but they still bury their heads in the laboratory.

(End of this chapter)