Motorola V8160 User manual

CDMA V8160
ServiceManual
Level III
DIGITALWIRELESSTELEPHONE
™
series

CDMA V8160

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CDMA V8160

5© 2000 Motorola, Inc.
CONTENTS
V8160
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
MajorDifferences ST Refresh &ST800 ST7760. . ....5
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Overall System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Foreward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ReplacementParts Ordering. . . . . . . . . . . . . . .9
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
General SafetyInformation . . . . . . . . . . . . . .10
Portable Operation. . . . . . . . . . . . . . . . . . . . . .10
Mobil Operation. . . . . . . . . . . . . . . . . . . . . . . .19
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Overall Concept. . . . . . . . . . . . . . . . . . . . . . . .11
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Service Area. . . . . . . . . . . . . . . . . . . . . . . . . . .12
Theory ofOperation . . . . . . . . . . . . . . . . . . . . .13
Reciever Circuitary. . . . . . . . . . . . . . . . . . . . .13
Transmitter Circuitry. . . . . . . . . . . . . . . . . . . .13
Transmit Power Control Circuitary. . . . . . . . .13
Recieve AudioAmps Mode. . . . . . . . . . . . . . .13
Recieve AudioCDMAMode . . . . . . . . . . . . .14
Transmit Audio Amps Mode. . . . . . . . . . . . . .14
Transmit Audio CDMA Mode. . . . . . . . . . . . .14
RF Block Diagrams. . . . . . . . . . . . . . . . . . . . .15
AudioLogic SideBlock Diagram. . . . . . . . . .16
Reverse Audio Functionality block diagram. .17
Forward Audio Functionality . . . . . . . . . . . . .18
Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Test Mode Testmenu. . . . . . . . . . . . . . . . . . .19
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . .19
Status Display Level. . . . . . . . . . . . . . . . . . . . 19
ServicingLevel. . . . . . . . . . . . . . . . . . . . . . . . 19
CDMASpecific Feautres . . . . . . . . . . . . . . . . 19
Test Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Markov Calls. . . . . . . . . . . . . . . . . . . . . . . . . . 20
Service Option 2. . . . . . . . . . . . . . . . . . . . . . . 20
Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Handset Commands. . . . . . . . . . . . . . . . . . . . 21
Tests and Adjustments . . . . . . . . . . . . . . . . . . . 39
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . 39
Test interface. . . . . . . . . . . . . . . . . . . . . . . . . . 39
Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . 39
Keypad ButtonFunctions. . . . . . . . . . . . . . . . 41
TXOutput Power Adjustments (centerOfBand)41
Maximum Deviation Adjust. . . . . . . . . . . . . . 42
MicrophoneDeviation Adjust. . . . . . . . . . . . . 42
DTMF Adjust . . . . . . . . . . . . . . . . . . . . . . . . . 43
SAT DeviationAdjust. . . . . . . . . . . . . . . . . . . 43
Data DeviationAdjust. . . . . . . . . . . . . . . . . . . 43
RX Discriminator Adjust . . . . . . . . . . . . . . . . 43
Amps Call Processing. . . . . . . . . . . . . . . . . . . 44
CDMACall Processing. . . . . . . . . . . . . . . . . . 44
Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . 46
Recommended Tools . . . . . . . . . . . . . . . . . . . 46
DisassemblyProcedure. . . . . . . . . . . . . . . . . . 46
Assembly Procedure. . . . . . . . . . . . . . . . . . . . 46
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 53
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . 53
Troubleshootingand Repair . . . . . . . . . . . . . . 49

V8160
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . .57
See the Schematics / Parts section for a detailed
view and print only parts list.

7© 2000 Motorola, Inc.
PREFACE
V8160
V8160
Logic Changes
•The biggest change from ST7760 is a new IC called Casper (U1100). Casper is the 338CPU,
DSP, and CRIB ASIC in one package.However, it is identical in architecture to ST7760.
Hence, any lines that interface those chips together on ST7760 are all internal tothe IC now.
Obviously,any lines thatinterface withtherestoftheboard (CIA, GCAP, 3WB, Memory,
and RF) are still external.
•Aux_Battery is eliminated; thishas reduced the complexityof the battery circuitry. Thereare
onlytwo powersources now:’BATT+" and’EXT_B+’.
•The memory devices are larger.Consequently, the SRAM has an additional line running to it.
TheFlash’s Chip Selectschemeis slightlydifferent thanST7760 because of anewmemor map.
•Flash: 8Mb & 16 Mb on ST7760 to 16 Mb and32Mb on ST7860 - FDITechnology also
contains EEProm-256 kb.
•SRAM:1Mb on ST7760 to2Mb on ST7860
•An External B+ Disconnect Circuit has been added (it isidentical to AMPS V3620). If the
voltageonExt_B+rises above6.75V,avoltagedetector disconnects Ext_B+from therest of
theboard. Thisis forovervoltageprotection.
•A new headset jack is being used to commonize 800 CDMA with ST7762 and ST7867. How-
ever, the detection scheme is slightly different than ST7760 .
•Thedisplayis holographicfilms (similar to Iridium) and EL backlit displays.
MechanicalChanges
•Since there will be no Aux_Batt support in V8160, there is no need for external Aux. Batt.
contacts on the rear housing. Much ofthe housing remains the same as V3682(GSM) or
V3620 (analog)phones.
Preface

V8160
Specifications
Overall System: AMPS.
Table 1:
Function Specification
Frequency Range 824.04 - 848.97 MHz Tx,
Channels 1 to 799, f Tx = 0.03 * N+ 825 MHz
Channels 990 to 1023, f Tx = 0.03(N—1023) + 825 MHz
869.04 - 893.97 MHz Rx
Channels 1 to 799 is f Rx = 0.03 * N+ 870 MHz
Channels 990 to 1023, f Rx = 0.03(N—1023) + 870 MHz
Channel Spacing 30 KHz
Channels 832
Duplex spacing 45 MHz(amps)
Frequency Stability +/- 2.5 ppm (Amps)
Operating Voltage 3.6 - 4.8 VDC
Display 96 X 32 LCD
RF Power Output 0.6 watts - 28.0 dBM into 50 ohms (AMPS, nominal)
0.25 watts - 24.0 dBM into 50 ohms (CDMA, nominal)
Input/Output Impe-
dence 50 ohms (nominal)
Spurious / Harmonic
Emissions Complies with Title 47, Part 22 of the code of Federal Regulations.
Audio Distortion Less than 5% at
Hum and Noise(C-
MSG) 32 dBm below +/- 8kHz deviation(transmit and recieve)
Modulation F3: + 12 kHz for 100% at 1 kHz, AMPS (wide)
1M25D1W (1.25 MHz bandwidth) CDMA
Transmit Audio
Response 6 dBm/octave pre-emphasis
Transmit Audio sensi-
tivity (AMPS)
+ 2.9 kHz deviation (nom.) @ 97 dBm SPL input @ 1 kHz
Transmit Duty Cycle full, 1/2, 1/4, 1/8 rate (CDMA Mode)
CDMA Transmit
Waveform
Quality(Rho)
0.94
Reciever Sensitivity -116 dBm (AMPS, SINAD, C-MSG weighted)
-104 dBm (CDMA, 0.5% Static FER)

Preface
Specifications subject to change without notice.
Alternate Channel
Desense Protection -60 db@+/- 60kHz (Amps)
Table 2: Environmental
Function Specification
Temprature Range Operational -30 o C to +60 o C (-22 o F to +140 o F)
Storage -55 o C to +85 o C (-67 o F to +185 o F)
Thermal Shock -40 o C to +85 o C (-40 o F to +185 o F)
meets Mil. Std. 810C
Shock Exceeds EIA Standards RS152B (Section 15) and IS-19
Drop Exceeds EIA Standards RS316B and IS-19
Humidity 95% Relative Humidity; meets EIA Standard IS-19
Vibration Exceeds EIA Standards RS316B and IS-19
Salt Fog Salt Solution fog at 35 o C (95 o F), tested for 48 hours
Dust 140 mesh blown silica flour test, tested for 5 hours
Notes: •EIA (Electronic Industries Association) Standard RS152B states the
minimum stan-dards for Land Mobile Communications, FM or PM
transmitters 25-470 MHz.
•EIA IS-19 states the recommended standards for 800 MHz cellular subscriber
units.
•EIA Standard RS316B states the standards for portable land mobile
communications.
•U.S. Military Standard 810D establishes uniform environmental test methods
for deter-mining the resistance of equipment to the effects of natural and
induced environments peculiar to military operations.
•TIA/EIA/IS-98 Recommended Minimum Performance Standards for Dual-
Mode Wide band Spread spectrum Cellular Mobile Stations.
Table 1:
Function Specification

V8160
Performance Specifications General
Table 3:
Function Specification
Frequency Range 1850 to 1910 MHz(tx), 1930 to 1990(RX)
RF Channel Bandwidth 1.25 MHz
Channels 1200(48 Channels-25 Calls on each channel)
Duplex Spacing 80 MHz
Frequency Stability Center Frequency* +/- 8.5 X10-8
+/- 150 Hz of incoming RX CDMA signal.
Operation Voltage +3.6 V nominal (3.0 -4.2 V DC)
RF Power output 0.20 Watts - 23 dBm into 50 ohms (CDMA , nominal)
input/output impedence 50 ohms(nominal)
Spurious /Harmonic emissions Complies with title 47, Part 22 of the code of federal regulations.
Vocoders 8kbps, 13kbps, EVRC
Transmit Time Error +/- 1 US
Modulation Type 1M25D1W(1.25MHz bandwith), OQPSK, G7W(CDMA)
Transmit Duty Cycle Variable- full, 1/2, 1/4, 1/8 rate(CDMA Mode)
CDMA Transmit Waveform Quality(rho) 0.94
Recieve Sensitivity -104dBm(CDMA, 0.5% Static FER, 8kbps Vocoder)
Display 96 X 32 LCD