Motorola V975 Service Manual

Motorola Confidential Proprietary
V975/V980Theory of Operation
3-2
Draft 1.0
• Dedicated camera key
• Accepts removable TransFlash memory (16,
32 64, 128, or 256MB) modules
• Talk time: up to 215 minutes (WCDMA, CS)
• Standby time: up to 260 hours
• Video clip playback
• 2MB user memory-V980
• 8MB user memory-V975
Front End Module
GSM receive signals from the antenna are fed into the
FEM (Front End Module) through an antenna match-
ing network and RF connector (N001). The WCDMA
receive signal is directly tapped into the antenna match-
ing network. This WCDMA receive configuration al-
lows the mobile transceiver to receive WCDMA and
GSM signals simultaneously, facilitating the ability to
handover from a GSM network to UMTS network and
vise-versa.
WCDMA and GSM (all bands) transmit signals are
passed through the FEM and fed into the antenna for
transmission. If N001 is used, all WCDMA and GSM
signals are fed into N001. Also, the internal antenna
path will be in an open state when N001 is used.
U002
FEM
N001
FL002
8
16
18
20
11
An tenn a
15
GSM
DCS
PCS
13
4532
Figure 3-2. RF Top
Front End Module

Motorola V975 Specifications

General

Brand	Motorola
Model	V975
Category	Cell Phone
Language	English