[Breaking Down Latest Mobiles] "All-in-one" Is Simply Structured [Panasonic: Part 1]
The P905i (VIERA mobile phone) is the result of an all-out effort by Panasonic Mobile Communications Co Ltd. It is truly an "all-in-one" terminal featuring 1seg (digital terrestrial TV) reception, GSM international roaming, HSDPA, GPS reception and Bluetooth, etc.
It is one of the most popular handsets among the 2007 fall/winter models released from NTT DoCoMo Inc. To begin with, the Nikkei Electronics Breakdown Team took a look inside the P905i.
First, we removed the rear lid and took out the battery pack. The handset contained the P15 Li-ion rechargeable battery with a rated voltage of 3.7V and a rated capacity of 770mAh. Slots for SIM and microSD cards were located above the battery.
A sub-board, camera module, etc appeared when we unscrewed the screws on the rear surface of the chassis on the keyboard side. Speakers, a rod antenna for 1seg reception and a FeliCa antenna, etc, were mounted on the same side as the rear lid.
The two dynamic speakers employed in the handset have a reputation for high quality sound. The board on which the FeliCa antenna was terminated had a "TYCO" logo printed on it, so it was probably manufactured by Tyco Electronics Corp.
A black frame and sub-board were provided so as to surround the camera, which has a resolution of about 5.1 megapixels, for external shots. The microSD card slot on the sub-board was marked with "MXJ," indicating that it is probably a Molex product.
The mainboard and the display part were connected by 40 thin coaxial cables. The cable connector had "IPX" engraved on it, meaning it was likely a product from I-Pex Co Ltd.
Part of the mainboard was covered with a metal shield. Key processors and the transceiver IC seemed to be mounted under the shield.
Another shielded area on the mainboard
- [Breaking Down Latest Mobiles] Panasonic, Hitachi, Sharp, 'All-in-one' Models [Prologue]
- [Breaking Down Latest Mobiles] Memory, Processor PoP-mounted [Panasonic: Part 2]
- [Breaking Down Latest Mobiles] 'Samsung SDI' Printed on FPC [Hitachi: Part 1]
- [Breaking Down Latest Mobiles] ICs on Both Surfaces of Mainboard [Hitachi: Part 2]
- [Breaking Down Latest Mobiles] 4th-gen AQUOS Mobile Phone [Sharp: Part 1]
- [Breaking Down Latest Mobiles] Toshiba's SoC on Mainboard [Sharp: Part 2]