Available on a contract basis, Motorola Inc. offers comprehensive maintenance and installation programs that enable customers to meet requirements for reliable, continuous communications. To learn more about the wide range of Motorola service programs, contact your local Motorola products representative or the nearest Customer Service Manager. Product Identification Motorola products are identified by the model number on the housing.
The Motorola products described in this manual may include Motorola computer programs stored in semiconductor memories or other media that are copyrighted with all rights reserved worldwide to Motorola. Laws in the United States and other countries preserve for Motorola, Inc. certain exclusive rights to the copyrighted...
Customer’s original units will be repaired but not refurbished as standard. Appointed Motorola Service Hubs will perform warranty and non-warranty field service for level 2 (assemblies) and level 3 (limited PCB component). The Motorola High Tech Centers will perform level 4 (full component) repairs.
When ordering crystals or channel elements, specify the Motorola part number, description, crystal frequency, and operating frequency desired. When the Motorola part number of a component is not known, use the product model number or other related major assembly along with a description of the related major assembly and of the component in question.
Level 1 and 2 Service Manual Specifications Specifications General Function Specification 880-915 MHz Tx (with EGSM) Frequency Range GSM 925-960 MHZ Rx 1710-1785 MHz Tx Frequency Range DCS 1805-1880 MHz Rx 1850.2-1909.8 MHz Tx Frequency Range PCS 1930.2-1989.8 MHz Rx Channel Spacing 200 kHz Channels...
Product Overview Product Family 0C81 Product Overview Motorola A388c telephones are global system for mobile communications (GSM) general packet radio service (GPRS) wireless application protocol (WAP)-enabled mobile phones with full-featured personal information manager (PIM) functionality. The A388c incorporates a large task-based touch screen display user interface (UI) featuring handwriting recognition for email and short message service (SMS) text messaging.
Page 11
Level 1 and 2 Service Manual Product Overview • WAP 1.2.1 compliant • 65K TFT Color touch screen liquid crystal display (LCD) • Downloadable wallpaper, themes, screensavers and ring tones • 7MB memory for user data • J2ME ® • VibraCall vibrating alert •...
Page 12
Product Overview Product Family 0C81 ➧ When the user receives a call while in browser mode, the browser will pause and allow the user to resume after completing the call. Caller Line Identification Upon receipt of a call, the calling party’s phone number is compared to the phone book.
Level 1 and 2 Service Manual General Operation General Operation Controls, Indicators, and Input/Output (I/O) Connections The A388c telephone’s controls are located on the front of the device (see Figure 1). Controls on the front of the phone include a Power ON/OFF button, Home Key, and a Up /Down key Soft Menu key on the left and right side.
Page 14
General Operation Product Family 0C81 Menu Navigation A388c telephones are equipped with a new user-friendly interface that employs 4 main menus. See Figure 2. Select each menu by tapping its tab on the right hand side of the screen. Each menu contains up to six function icons that make up a function group.
Page 15
Level 1 and 2 Service Manual General Operation Figure 3 shows some common icons displayed on the LCD. Figure 3. A388c Icon Indicators Table 1. Icon Indicators and Description Icon Description Signal Strength Indicator. Shows the strength of the phone’s connection with the network.
General Operation Product Family 0C81 Alert Settings A388c telephones include up to 32 preset alert tones and vibrations that can be applied to all alert events at the same time. ➧ Pressing either volume key will mute the alert. Battery Function Battery Gauge The telephone displays a battery level indicator icon in the idle screen to indicate the battery charge level.
GSM / DCS Test SIM Card Used to enable manual test mode 1. To order in North America, contact Motorola Aftermarket and Accessories Division (AAD) at (847) 538-8000; Internationally, AAD can be reached by calling +1 847 5388023 or faxing +1 847 5763023.
Disassembly Product Family 0C81 Disassembly The procedures in this section provide instructions for the disassembly of a A388c telephone. Tools and equipment used for the phone are listed in Table 2, preceding. Many of the integrated devices used in this equipment are vulnerable to damage from electrostatic discharge (ESD).
Page 19
Level 1 and 2 Service Manual Disassembly While holding the battery latch open, lift the end of the battery and remove it completely. See Figures 5-2 and 5-3. BATTERY BATTERY LATCH BATTERY CONTACTS BATTERY COMPARTMENT 011639-o Figure 5. Removing the battery There is a danger of explosion if the Lithium Ion battery is replaced incorrectly.
Disassembly Product Family 0C81 Removing and Replacing the Subscriber Identity Module (SIM) Remove the battery as described in the procedures. Slide the SIM holder in the direction of the arrow (Figure 6-1) to unlock and rotate (Figure 6-2) to open. Carefully slide the SIM from its holder as shown in Figure 6-3.
Level 1 and 2 Service Manual Disassembly Removing and Replacing the Antenna Remove the battery as described in the procedures. By hand, rotate the antenna counterclockwise until loose as shown in Figure 7-1. 011641-o Figure 7. Removing the antenna When the antenna threads are completely disengaged, pull the antenna straight out of the phone housing to remove.
Page 22
Disassembly Product Family 0C81 Using the flat end of the disassembly tool, remove the 2 housing screw plugs (Figure 22, “Exploded view diagram,” on page 41, Item 21). Using a Torx driver with a T-6 bit, remove the 4 screws from the rear housing. See Figure 8A.
Level 1 and 2 Service Manual Disassembly Replace both housing screw plugs. Replace the antenna, SIM, and battery as described in the procedures. Removing and Replacing the Real Time Clock (RTC) Battery Remove the battery, SIM, antenna, and rear housing as described in the procedures MAIN BOARD DISASSEMBLY TOOL...
Disassembly Product Family 0C81 Removing and Replacing the Alert Gasket Remove the battery, SIM, antenna, and rear housing as described in the procedures. Using the plastic tweezers, grasp the alert gasket and pull completely out of the housing as shown in Figure 10. ALERT GASKET PLASTIC REAR HOUSING...
Level 1 and 2 Service Manual Disassembly Removing and Replacing the Light Guide Remove the battery, SIM, antenna, and rear housing as described in the procedures. Using the pointed end of the disassembly tool from inside the rear housing, firmly push the light guide straight out of the housing as shown in Figure 11-1, then remove completely (Figure 11-2).
Disassembly Product Family 0C81 Removing and Replacing the Battery Latch Remove the battery, SIM, antenna, and rear housing as described in the procedures. Using the disassembly tool inside the rear housing, disengage both of the battery latch catches as shown in Figure 12-1. BATTERY LATCH CATCH REAR HOUSING...
Level 1 and 2 Service Manual Disassembly Removing and Replacing the Main Board This product contains static-sensitive devices. Use anti-static handling procedures to prevent electrostatic discharge (ESD) and component damage. Remove the battery, SIM, antenna, and rear housing as described in the procedures The flexible printed cable (FPC or flex) is easily damaged.
Page 28
Disassembly Product Family 0C81 PLASTIC TWEEZERS FLEX MAIN BOARD 011648-o Figure 14. Disconnecting the flex from the main board Lift the transceiver board assembly completely from the front housing as shown in Figure 15. MAIN BOARD FRONT HOUSING 011649-o Figure 15. Removing the main board To replace, insert the transceiver board assembly into the front housing with the flex connector on top.
Level 1 and 2 Service Manual Disassembly Replace the rear housing, antenna, SIM, and battery as described in the procedures. Removing and Replacing the Microphone Remove the battery, SIM, antenna, rear housing, and main board as described in the procedures PLASTIC MICROPHONE TWEEZERS...
Disassembly Product Family 0C81 Removing and Replacing the Keypad and Buttons Remove the battery, SIM, antenna, rear housing, and main board as described in the procedures Using the plastic tweezers, lift the volume button, voice button, and keypad from the front housing as shown in Figure 17. VOICE BUTTON PLASTIC TWEEZERS...
Level 1 and 2 Service Manual Disassembly Removing and Replacing the Touch Screen Display Assembly This product contains static-sensitive devices. Use anti-static handling procedures to prevent electrostatic discharge (ESD) and component damage. Remove the battery, SIM, antenna, rear housing, main board, external keys, and buttons as described in the procedures TOUCH SCREEN DISPLAY ASSEMBLY...
Disassembly Product Family 0C81 Removing and Replacing the Flip Assembly Remove the battery, SIM, antenna, rear housing, main board, external keys, buttons, and touch screen display assembly as described in the procedures After releasing the hinge assembly in the following step, DO NOT attempt to completely separate the flip assembly from the front housing until you have safely routed the speaker leads through the opening in the front housing.
Page 33
Level 1 and 2 Service Manual Disassembly Using the pointed tweezers through the flip housing slot, depress the hinge assembly to release the flip assembly from the front housing knuckle. See Figure 19-1. Tilt and slightly separate the flip assembly (Figures 19-2 and 19-3) from the front housing.
The Mechanical Serial Number (MSN) is an individual unit identity number and remains with the unit throughout the life of the unit. The MSN can be used to log and track a unit on Motorola's Service Center Database. The MSN is divided into 4 sections as shown in Figure 20.
Page 35
Level 1 and 2 Service Manual SIM Cards and Identification International Mobile Station Equipment Identity (IMEI) The International Mobile station Equipment Identity (IMEI) number is an individual number unique to the PCB and is stored within the unit's memory. The following diagram illustrates the various parts of this number.
Product Family 0C81 Troubleshooting Manual Test Mode Motorola A388c telephones are equipped with a manual test mode capability. This allows service personnel to verify functionality and perform fault isolation by entering keypad commands. To enter the manual test command mode, a GSM / DCS test SIM must be used.
Level 1 and 2 Service Manual Troubleshooting Table 3. Test Commands (Continued) Test Command Test Function/Name Disable sidetone Show service indicator LED (0 - Off, 1 - Red, 2 - Green, 3 - Amber) (flip must be closed) Initialize non-volatile memory Display security code 58xxxxxx# Modify security code...
Page 38
Troubleshooting Product Family 0C81 Table 4. Product Family 0C45 Telephone: Level 1 and 2 Troubleshooting Chart (Continued) SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY b) Touch screen display assembly Remove the touch screen display assembly as defective. described in the procedures. Temporarily reassemble unit with a known good touch screen display assembly and verify proper operation.
Page 39
Level 1 and 2 Service Manual Troubleshooting Table 4. Product Family 0C45 Telephone: Level 1 and 2 Troubleshooting Chart (Continued) SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY b) Connections between touch screen Refer to remedy 3a and 3b. If fault has not been display assembly and main board cleared, proceed to c.
Part Number Charts The following charts are provided as a reference for the parts associated with A388c telephones. Related Publications Motorola 388 Wireless Phone User Guide, Simple Chinese 9804586R01 Motorola 388 Wireless Phone User Guide, Traditional Chinese 9804586R02 Motorola 388 Wireless Phone User Guide, English...
Troubleshooting Product Family 0C81 Exploded View Parts List Table 5. Exploded View Parts List Motorola Motorola Item Part Number Part Number Description Number (North America & (EMEA) Latin America) See Table 5 See Table 5 Flip assembly 0164059E01 0164057E01 Front housing assembly...
Level 1 and 2 Service Manual Troubleshooting Model-dependent Part Numbers Table 6. Model-dependent Part Numbers Model Item 92570XYESA Part Description SA04090A SA04091A SA0499A SA0500A Number Onyx Blue Nickel Onyx Blue Nickel Onyx Blue Nickel Flip assembly 0164060E01 0164060E02 0164060E02 0164060E02 0164060E02 0164060E02 Main board CHLF4290AA CHLF4290AA CHLF4290AB CHLF4290AB CHLF4290AC CHLF4290AC Rear housing assembly...
Page 44
Troubleshooting Product Family 0C81 March 21, 2003 6809462A54...
1 and 2 Index Level 1 and 2 Service Manual Index 0C81 6809462A54 alert settings 14 keypad, removing and replacing 28 antenna, removing and replacing 19 light guide, removing and replacing 22, 23, 24 battery liquid crystal display (LCD) 12 function 14 gauge 14 removing 16...
Page 46
Level 1 and 2 Service Manual Index replacing antenna 19 battery 16 flip assembly 30 keypad 28 light guide 22, 23, 24 microphone 27 revisions service manual 5 serial number mechanical 32 service manual about 4 revisions 5 scope 4 service policy 5 customer support 6 out of box failure 5...
Page 48
MOTOROLA, the Stylized M Logo, and all other trademarks indicated as such herein are trademarks of Motorola, Inc. ® Reg. U.S. Pat. & Tm. Off. TrueSync is a trademark of Starfish, Inc., a wholly owned independent subsidiary of Motorola, Inc.