Manual.pdf

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Acer
D65
ACER D65
Service Menual
<Lever 1,2 Repair>
st
1 Draft
10/15/99
Contents
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Preface… … … … … … … … … … … … 2
Theory of Operation… … … … … … .5
Download & Testing… … … … … ...11
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Acer
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D65
Disassembly… … … … … … … ..… … 17
Troubleshooting… … … … … … … … 22
Replacement Parts… … … … … … … 25
Service Manual Feedback Form… .28
Preface
Specifications
Table 1: Radio Frequency
Radio Frequency (900 MHz)
Frequency Range
Channel Spacing
Number of Channels
Modulation
Duplex Spacing
Frequency Stability
Power Output
Output Impedance
Spurious Emission
Receiver Level
Radio Frequency (1800 MHz)
Frequency Range
TX 890-915 MHz; RX 935-960 MHz
200 KHz
124 Carriers x 8 (TDMA)
GMSK
45 MHz
+/- 0.1 ppm (Uplink TX)
33 dBM Class 4 (2 W peak)
50 Ohm
-36 dBm up to 1 GHz (< -30 dBm > 1 GHz)
< 107 dBM (Wireless)
TX 1710-1785 MHz; RX 1805-1880 MHz
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Peripherals, Inc.
Acer
Channel Spacing
Number of Channels
Modulation
Duplex Spacing
Frequency Stability
Power Output
Output Impedance
Spurious Emission
Receiver Level
Temperature Range
D65
200 KHz
374 Carriers x 8 (TDMA)
GMSK
95 MHz
+/- 0.1 ppm (Uplink TX)
30 dBM – 0 dBM
50 Ohm
-36 dBm up to 1 GHz (< -30 dBm > 1 GHz)
Compatible with phase 2 feature
< -106 dBM (Wireless)
-20 to +55 °C
Table 2: Voltage Operation
Voltage Operation
Li-ion Battery
Ni-MH Battery
DC 2.7-4.2 V
DC 3.3-4.2 V
Table 3: Power Consumption
Power Consumption
Working Current Average
Standby Current
Talking Time*
Standby Time*
DTX / DTR
Handset Appearance
Dimensions
Volume
Handset Weight
112 x 46 x 18 mm
88 c.c.
80 g
< 200 mAH
< 6 mAH
> 3 hours (With Li-ion 600 mAH)
> 100 hours (With Li-ion 600 mAH)
Yes
Table 4: Appearance
Table 5: Basic Services
Tele Service
Telephony (Speech)
Emergency Call
Short Message Service
Delivery Report
Short Message Service MT/MO
Cell Broadcast
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Peripherals, Inc.
Acer
Bearer Service
Data circuit duplex asynchronous up to
14400 bit/sec
D65
Scope of Manual
This manual is intended for use by experienced technicians familiar with similar types of
equipment. It is intended primarily to support electrical and mechanical repairs. Repairs not
covered in the scope of this manual should be forwarded to Motorola’ regional Cellular
s
Subscriber Support Centers.
Theory of Operation
PART I. BASEBAND
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Peripherals, Inc.
Acer
D65
B A S E B A N D B L O C K D IA G R A M
POLE-STAR
VTCXO
13Mbz
A F C
VEGA
DSP
TAF
SIM
CARD
PLL
R
I
F
R A D IO d a ta
APC
A U D IO d a ta
THERMAL
SENSOR
SIM
LEAD
S
P
I
LEAD
S
P
VOICE
BATERY
MANAGERMENT
DATA
ADAPTOR
FUNCTION
DATA
R
2
5
1
A
XIO
API
S
P
TIMING
SS
SYSTEM
S IM U L A T O R
TDMA
A
w in d o w c o n trol
C
T
S
P
TIMER
MCU
BUZZER
I/O
ARM7
INTH
T
P
U
A G C /A F C
volume
S
P
T
S
P
U WIRE
Vbat
Toc
MEMORY I/F
PLL F1
A rc Fcn
HF
PLL F
RX
LCD
PLL F
TX
RF
E2PROM
SRAM
FLASH
EXTERAL
MCU
GSM System Description
General Cellular Concept
The cellular systems are used to provide radiotelephone service in the frequency range 890-
960 MHz. A cellular system provides higher call handling capacity and system availability
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