Level 2 Service ManualA840, A860Digital Wireless TelephoneCDMA 800/1900 MHz; GSM 900/1800 MHz
10 June 09, 2004 6809485A78-OSpecifications A840Receiver Function SpecificationReceive Sensitivity-116 dBm (AMPS, SINAD, C-MSG weighted)
6809485A78-O June 09, 2004 11Level 2 Service Manual Product OverviewProduct OverviewMotorola A840 mobile telephones feature Code Division Mul
12 June 09, 2004 6809485A78-OProduct Overview A840• Picture Caller ID on External & Internal Display• Digital Camera Features: Photo A
6809485A78-O June 09, 2004 13Level 2 Service Manual General OperationGeneral OperationControls, Indicators, and Input/Output (I/O) Connectors
14 June 09, 2004 6809485A78-OGeneral Operation A840Menu NavigationA840 telephones have a simple icon based GUI. The phone also features au
6809485A78-O June 09, 2004 15Level 2 Service Manual General OperationFigure 2 shows some common icons displayed on the LCD. Alert SettingsIn
16 June 09, 2004 6809485A78-OGeneral Operation A840Battery RemovalRemoving the battery causes the device to shut down immediately and loos
6809485A78-O June 07, 2004 17Level 2 Service Manual Theory of OperationTheory of OperationMSM6300 System OverviewQCT’s MSM6300 solution, p
18 June 07, 2004 Theory of Operation A840to run on a Subscriber Unit Reference (SURF) phone platform, an optional devel-opment platform optimize
June 07, 2004 19Level 2 Service Manual Theory of OperationPM6050 Device DescriptionThe PM6050 device (Figure 2) integrates all wireless ha
20 June 07, 2004 Theory of Operation A840Figure 5. PM6050 Block Diagram
June 07, 2004 21Level 2 Service Manual Theory of OperationRTR00 OverviewThe RTR6300 is a RF transceiver IC, an integral component of QUALC
22 June 07, 2004 Theory of Operation A840Phase-locked loop circuits:• PLL#1 and an on-chip VCO supports cdma2000 TX modes•PLL#2Supports EGSM RX
June 07, 2004 23Level 2 Service Manual Theory of OperationFigure 7. RFR6000 Block DiagramNumerous secondary functions are integrated on-c
24 June 07, 2004 Theory of Operation A840The RFL6000 IC includes two LNA circuits, one optimized for the Cellular band and one for PCS. The LNA
6809485A78-O June 07, 2004 27Level 2 Service Manual Tools and Test EquipmentTools and Test EquipmentThe following table lists tools and te
28 June 07, 2004 6809485A78-ODisassembly A840DisassemblyThe procedures in this section provide instructions for the disassembly of a A840 telep
6809485A78-O June 07, 2004 29Level 2 Service Manual DisassemblyRemoving the Battery Cover1. Ensure the phone is turned off.2. Slide the ba
30 June 07, 2004 6809485A78-ODisassembly A840Removing and Replacing the RUIM (Removable User Information Memory)1. Remove the battery cover as
6809485A78-O June 07, 2004 31Level 2 Service Manual DisassemblyRemoving and Replacing the Battery1. Ensure the phone is turned off.2. Remo
6809485A78-O June 07, 2004 3Level 2 Service Manual ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32 June 07, 2004 6809485A78-ODisassembly A840Removing and Replacing the Antenna1. Remove the battery cover, and battery as described in the pro
6809485A78-O June 07, 2004 33Level 2 Service Manual DisassemblyRemoving and Replacing the Keypad Bezel1. Remove the battery cover, battery
34 June 07, 2004 6809485A78-ODisassembly A840Removing and Replacing the Speaker Cover1. Remove the battery cover, battery, antenna, and keypad
6809485A78-O June 07, 2004 35Level 2 Service Manual DisassemblyRemoving and Replacing the Keyboard Stiffener1. Remove the battery cover, b
36 June 07, 2004 6809485A78-ODisassembly A8405. Lift the keyboard stiffener away from the phone.6. To replace, align the keyboard stiffener to
6809485A78-O June 07, 2004 37Level 2 Service Manual Disassembly3. Use the T6 driver to remove the two flip assembly screws. Set the screws
38 June 07, 2004 6809485A78-ODisassembly A8405. Turn the transceiver board and rear assembly over and lift the transceiver board away from the
6809485A78-O June 07, 2004 39Level 2 Service Manual DisassemblyRemoving and Replacing the Flip Display Lens1. Remove the battery cover, ba
40 June 07, 2004 6809485A78-ODisassembly A840Removing and Replacing the Flip Assembly Sleeve 1. Remove the battery cover, battery, antenna, key
6809485A78-O June 07, 2004 41Level 2 Service Manual DisassemblyRemoving and Replacing the Flip Knuckle1. Remove the battery cover, battery
4 June 07, 2004 6809485A78-OContents A840
42 June 07, 2004 6809485A78-ODisassembly A840Removing the Display Bezel1. Remove the battery cover, battery, antenna, keypad bezel, speaker cov
6809485A78-O June 07, 2004 43Level 2 Service Manual DisassemblyRemoving the Display Module1. Remove the battery cover, battery, antenna, k
44 June 07, 2004 6809485A78-ODisassembly A840Removing and Replacing the Keypad 1. Remove the antenna, battery cover, battery, rear housing asse
6809485A78-O June 07, 2004 45Level 2 Service Manual DisassemblyRemoving the Motor/Vibrator Assembly1. Remove the battery cover, battery, a
46 June 07, 2004 6809485A78-ODisassembly A840
6809485A78-O June 07, 2004 47Level 2 Service Manual Phone IdentificationPhone IdentificationPersonality TransferA personality transfer is
48 June 07, 2004 6809485A78-OTroubleshooting A840TroubleshootingTable 2. Level 1 and 2 Troubleshooting Chart Symptom Probable Cause Verificati
6809485A78-O June 07, 2004 49Level 2 Service Manual Troubleshootingb) Microphone defective.Gain access to microphone. Disconnect and subst
50 June 07, 2004 6809485A78-OTroubleshooting A840Programming: Software Upgrade and FlexingContact your local technical support engineer for inf
6809485A78-O June 07, 2004 51Level 2 Service Manual TroubleshootingExploded View DiagramFigure 28. Exploded View32456789101112131416151819
6809485A78-O June 09, 2004 5Level 2 Service Manual IntroductionIntroductionMotorola® Inc. maintains a worldwide organization that is dedicate
52 June 07, 2004 6809485A78-OTroubleshooting A840Exploded View Parts List Table 3. Exploded View Parts List Item NumberMotorola Part NumberDes
6809485A78-O June 07, 2004 53Level 2 Service Manual TroubleshootingAccessoriesTable 4. Accessories Description Part NumberPower SolutionsB
54 June 07, 2004 6809485A78-OTroubleshooting A840
6809485A78-O June 04, 2004 Index-1Level 2 Service Manual IndexAalert settings 15antenna, removing and replacing 32Bbatterycharge indicator 15fu
Index-2 June 04, 2004 6809485A78-OIndex A840motor/vibrator 45speaker cover 34replacement partsordering 8replacingantenna 32battery 31battery co
MOTOROLA, the Stylized M Logo, and all other trademarks indicated as such herein are trademarks of Motorola, Inc.® Reg. U.S. Pat. & Tm. Off.© 2004
6 June 09, 2004 6809485A78-OIntroduction A840Computer Program CopyrightsThe Motorola products described in this manual may include Motorola
6809485A78-O June 09, 2004 7Level 2 Service Manual IntroductionConventionsThe following special characters and typefaces are used in this man
8 June 09, 2004 6809485A78-OIntroduction A840Parts ReplacementWhen ordering replacement parts or equipment, include the Motorola part numbe
6809485A78-O June 09, 2004 9Level 2 Service Manual SpecificationsSpecifications General Function Specification Frequency Range 1900 MHz PC
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