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While we were having a difficult time disassembling the Kindle 2, the rear cover of the Kindle was removed. Looking down the inside of the Kindle, the engineer said, “The cost must be very high. It’s really filled with components.” In fact, with a number of parts crammed in the small space, it gave us the impression of “a heap of parts.”
Looking at it more carefully, there was another substrate mounted on a part of the main board. It was an SD memory card slot. This is the only “two-structured” and thick part of the main board. In fact, the back side of the Kindle slopes along this part, making it look “distorted.”
“I think they designed the chassis after designing the board,” the engineer said.
In the mean time, the back cover of the Kindle 2 was taken off after some struggles.
We finally took off the back cover of the Kindle 2, sometime after removing the back cover of the Kindle.
“Oh, this is very tidy,” said the engineer who participated in the teardown. “They completely revamped the design.”
The exposed main boards of the new and old Kindles were clearly different from each other. While the old one was crammed with components, there was no double that the new one had much fewer parts and was well organized.
To analyze the main boards in detail, we removed them from the front covers of the chassis and looked at the back sides of the boards. The back side of the new Kindle’s main board was mounted with no part. In contrast, many components, including Samsung Electronics Co Ltd’s 256-Mbyte NAND flash memory, were found on the back of the old Kindle’s main board, reinforcing the impression that the old model is complicated and the new model is simple.
