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V820
Motorola V820 Manuals
Manuals and User Guides for Motorola V820. We have
1
Motorola V820 manual available for free PDF download: Service Manual
Motorola V820 Service Manual (47 pages)
digital wireless telephone
Brand:
Motorola
| Category:
Telephone
| Size: 2.66 MB
Table of Contents
Table of Contents
3
Product Description
5
Introduction to 810
5
CDMA Dual Band-Tri-Mode
5
Non Qualcomm IC's
6
CDMA-PCS 1900Mhz Band
7
CDMA Dual Band Trimode Phone
7
Performance Specification
7
Channel Number
7
Brief IC Functional Description
8
Specifications
9
CDMA 800Mhz Channel Numberin
9
Foreward
12
Scope of Manual
12
Replacement Parts Ordering
12
Serivce
12
Genaral Safety Information
13
Portable Operation
13
Mobile Operation
13
Cellular Overview
14
Overall Concept
14
Hypothetical Cell System
15
Operation
15
Service Area
15
PCS System
15
Circuit Description & Theory of Operation
16
Receiver
16
Block Diagram
17
Transmitter
18
Systhesizer
18
Control Logic Circuitry
19
Overview
19
Baseband Processor IC
19
Pm6000
20
Flash/Psram Memory
20
Accessory Interface
20
Battery Interface
21
Power Distribution
21
Audio Control Circuitry
21
Audio Lineup
21
Sidetone (DSP)
22
Transmit Path Audio
22
MSM Block Diagram
23
A/D Converter and Filtering
23
TX Volume Control
23
Headset Microphone Path
23
External Microphone Path
23
Receive Audio Path
24
RX FIR Filter
24
Codec RX Gain
24
Ear Speaker Path
24
Headset Speaker Path
24
External Speaker Path
25
MIDI Alert Interface
25
MMI Alert Interface
25
Keypad Interface
25
Flip Open/Close Detection
26
Display Module Interface
26
Camera
26
Leds
26
Disassembly Procedure
30
Remove Main Board
30
Remove Keypad
30
Remove Flip Assembly
31
Remove Flip Hinge
31
Remove Flip Assembly
32
Remove Rubber Bumper
32
Remove Flip Screws
33
Remove Flip Cover
33
Remove Bracket Sub LCD
34
Remove Camera Connector
34
Remove Camera Assembly
35
Remove Vibrator
35
Display Disassembly
36
Main Display Connector
36
Product Support Tools
39
Gate 24
40
Troubleshooting
41
Exploded View Diagram
46
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