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Motorola V235, Service Manual

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Motorola V235 Service Manual Download Page 46

46

 

          April 03, 2006

6809495A43-C

Troubleshooting

 V235 GSM

b) Faulty transceiver board 
assembly.

Replace the transceiver board assembly (refer 
to 1c). Verify that the fault has been cleared 
and reassemble the unit with the new 
transceiver board assembly.

5. Telephone transmit audio is weak. 
(usually indicated by called parties 
complaining of difficulty in hearing voice).

a) Microphone connections to the 
transceiver board assembly 
defective.

Gain access to the microphone as described in 
the procedures. Check connections. If 
connector is faulty proceed to c; if the 
connector is not at fault, proceed to b.

b) Microphone defective.

Gain access to microphone. Disconnect and 
substitute a known good microphone. Place a
call and verify improvement in transmit signal 
as heard by called party. If good, reassemble 
with new microphone. If microphone is not at 
fault, reinstall original microphone and proceed 
to c.

c) Transceiver board assembly 
defective.

Replace the transceiver board assembly (refer 
to 1c). Verify that the fault has been cleared 
and reassemble the unit with the new 
transceiver board assembly.

6. Receive audio from earpiece speaker is 
weak or distorted.

a) Connections to or from transceiver 
board assembly defective.

Gain access to the transceiver board assembly 
as described in the procedures. Check flex and 
the flex connector from the flip assembly to the 
transceiver board assembly. If flex is at fault, 
replace flip assembly. If flex connector is at 
fault, proceed to d. If connection is not at fault, 
proceed to b.

b) Flip assembly defective.

Temporarily replace the flip assembly with a 
known good assembly. If fault has been 
cleared, reassemble with the new flip assembly. 
If fault not cleared, proceed to c.

c) Antenna assembly defective.

Check to make sure the antenna is installed 
correctly. If the antenna is installed correctly, 
substitute a known good antenna assembly. If 
this does not clear the fault, reinstall the 
original antenna assembly and proceed to d.

d) Transceiver board assembly 
defective.

Replace the transceiver board assembly (refer 
to 1c). Verify that the fault has been cleared 
and reassemble with the new transceiver board 
assembly.

7. Telephone will not recognize or accept 
SIM.

a) SIM defective.

Check the SIM contacts for dirt. Clean if 
necessary and check if fault has been cleared. 
If the contacts are clean, insert a known good 
SIM into the telephone. Power up the unit and 
confirm that the SIM has been accepted. If the 
fault no longer exists, replace the defective 
SIM. If the SIM is not at fault, proceed to b.

c) Transceiver board assembly 
defective.

Replace the transceiver board assembly (refer 
to 1c). Verify that the fault has been cleared 
and reassemble the unit with the new 
transceiver board assembly.

Table 4. Level 1 and 2 Troubleshooting Chart (Continued)

SYMPTOM

PROBABLE CAUSE

VERIFICATION AND REMEDY

Summary of Contents for V235

Page 1: ...Level 1 and 2 Service Manual 6809495A43 C V235 Digital Wireless Telephone GSM 850 900 1800 1900 MHz GPRS ...

Page 2: ......

Page 3: ...M 22 Removing and Replacing the Antenna 23 Removing and Replacing the Rear Housing 24 Removing and Replacing the Transceiver Board Assembly 26 Removing and Replacing the Keypad Volume Smart and Voice Buttons 29 Removing and Replacing the Microphone 30 Removing and Replacing the Flip Assembly 31 Removing and Replacing the Flip Cover 33 Removing and Replacing the Display Assembly Bracket 34 Removing...

Page 4: ...4 April 03 2006 6809495A43 C Contents V235 GSM Exploded View Diagram 48 Exploded View Parts List 49 Accessories 51 ...

Page 5: ... parts Product Names Product names are listed on the front cover Product names are subject to change without notice Some product names as well as some frequency bands are available only in certain markets Product Changes When electrical mechanical or production changes are incorporated into Motorola products a revision letter is assigned to the chassis or kit affected for example A B or C and so o...

Page 6: ...ve license to use the Motorola product and the Motorola computer programs with the Motorola product About This Service Manual Use of this manual assures proper installation operation and maintenance of Motorola products and equipment It contains all service information required for the equipment described and is current as of the printing date Refer questions about this manual to the nearest Custo...

Page 7: ...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 Motorola High Tech Centers will perform level 4 full component repairs Customer Support Customer support is available through dedicated Call Centers and in country help desks Product Service training is availa...

Page 8: ...long with a description of the related major assembly and of the component in question In the U S A to contact Motorola Inc on your TTY call 800 793 7834 Accessories and Aftermarket Division AAD Order replacement parts test equipment and manuals from AAD U S A Outside U S A Phone 800 422 4210 Phone 847 538 8023 FAX 800 622 6210 FAX 847 576 3023 Website http businessonline motorola com EMEA Phone 4...

Page 9: ...ery 46 5 mm x 85 9 mm x 24 7 mm 1 83 inches x 3 38 inches x 0 97 inches Size Volume 82 4 cc 5 02 in3 with battery Weight 103 7 grams 3 78 oz with battery Battery Life with standard 810 mAh Li Ion Battery Talk Time 240 to 480 minutes Standby time 190 to 290 hours All talk and standby times are approximate and depend on network configuration signal strength and features selected Standby times are qu...

Page 10: ...10 April 03 2006 6809495A43 C Specifications V235 GSM Block Length 260 bits Classes Class 1 bits 182 bits Class 2 bits 78 bits Bit Rate with FEC Encoding 22 8 kbps Speech Coding Function Specification ...

Page 11: ...volume buttons and voice button The standard 810 mAh Lithium Ion Li Ion battery fits behind a removable back cover The phone accepts 3V mini subscriber identity module SIM cards which slide into the SIM holder underneath the battery The antenna is a fixed stub type antenna Inexpensive direct connection to a computer or handheld device via USB for data and fax calls and for synchronizing phonebook ...

Page 12: ...rver in standard HTML subsequently filtered to WML or directly in WML if available The information is then passed to the mobile subscriber via the mobile network The V235 microbrowser can be configured for baud idle timeout line type phone number and connection type SIM Application ToolkitTM Class 2 SIM Application Toolkit is a value added service delivery mechanism that allows GSM operators to cu...

Page 13: ...nerate a character Numeric The keypad produces numeric characters only For some text areas this is the only method available for example phone numbers Caller Line Identification Upon receipt of a call the calling party s phone number is compared to the phone book If the number matches a phone book entry that name will be displayed If there is no phone book entry the incoming phone number will be d...

Page 14: ...ptions displayed on the screen The left and right soft keys perform the function shown in the corners of the display The right key will usually select an option whereas the left key will usually exit a function or return to a previous screen The menu key opens the initial menu structure or allows access to a submenu whenever M appears on the display Color Display The V235 wireless phone features a...

Page 15: ...k dependent feature Voice Message Waiting Indicator 1 Appears when a voicemail message is received This is a network dependent feature Battery Level Indicator Shows the amount of charge left in the battery The more segments visible the greater the charge Recharge the battery as soon as possible when the Low Battery warning message appears Clock Shows the current date and time Menu Indicator Indica...

Page 16: ...box Drafts Info Services Voicemail Quick Notes Drafts MMS Templates Browser Msgs Info Services É Tools Calculator Datebook Shortcuts Alarm Clock Dialing Services Q Games Apps á Web Access Browser Web Shortcuts Stored Pages History Go To URL Browser Setup Web Sessions h Multimedia Pictures Sounds C amera Video Camera Videos Ü Voice Records w Settings see next page optional features Feature may appe...

Page 17: ...tion Sync H Call Forward Voice Calls Fax Calls Data Calls Cancel All Forward Status U In Call Setup In Call Timer My Caller ID Talk and Fax Answer Options Call Waiting Z Initial Setup Time and Date 1 Touch Dial Display Timeout Backlight Scroll Language Contrast DTMF Master Reset Master Clear m Phone Status My Tel Numbers Active Line Battery Meter Software Update Other Information S Headset Auto An...

Page 18: ...es or outgoing messages is lost Operation For detailed operating instructions refer to the appropriate User s Guide listed in the Related Publications section toward the end of this manual To ensure proper memory retention turn OFF the phone before removing the battery Immediately replace the old battery with a fresh battery G If the battery is removed while receiving a message the message will be...

Page 19: ...evice 0180386A82 Antistatic Mat Kit includes 66 80387A95 antistatic mat 66 80334B36 ground cord and 42 80385A59 wrist band Provides protection from damage to device caused by electrostatic discharge ESD 6680388B67 Disassembly tool plastic with flat and pointed ends manual opening tool Used during assembly disassembly of device 6680388B01 Tweezers plastic Used during assembly disassembly Digital Mu...

Page 20: ...are vulnerable to damage from electrostatic discharge ESD Ensure adequate static protection is in place when handling shipping and servicing the internal components of this equipment G Avoid stressing the plastic in any way to avoid damage to either the plastic or internal components E All batteries can cause property damage and or bodily injury such as burns if a conductive materialsuch as jewelr...

Page 21: ...f the battery near the antenna into the battery compartment 8 Insert the bottom end of the battery housing into the base of the phone 9 Slide the battery cover onto the phone and snap it into place 050474o Figure 2 Removing the battery E There is a danger of explosion if the Lithium Ion battery is replaced incorrectly Replace only with the same type of battery or equivalent as recommended by the b...

Page 22: ... Slide the SIM out of its compartment as shown in Figure 3 3 Lift the SIM out of the phone 4 To replace slide the SIM into the holder ensuring the keyed corner of the SIM aligns with the notch molded into the holder 5 The SIM latch snaps into place when the SIM is fully inserted into the holder 6 Replace the battery and battery door as described in the procedures 050475o Figure 3 Removing the SIM ...

Page 23: ...ntenna counterclockwise until loose See Figure 4 4 When the antenna threads are completely disengaged pull the antenna straight out of the phone to remove 5 To replace insert the threaded end of the antenna carefully into the housing and after ensuring the threads are properly engaged rotate clockwise Tighten firmly by hand 6 Replace the SIM battery and battery cover as described in the procedures...

Page 24: ...in the screws for reassembly See Figure 5 4 Release the two housing latches by inserting the pointed end of the plastic disassembly tool into the openings on the rear housing G This product contains static sensitive devices Use anti static handling procedures to prevent electrostatic discharge ESD and component damage G In addition to 4 screws the rear housing assembly is fastened with plastic lat...

Page 25: ...rear chassis assembly down until the 2 housing catches engage with the corresponding openings on the rear chassis assembly Press the housings together until the catches snap into place 7 Replace the 4 transceiver screws and tighten to a final torque setting of 16 Ncm or 1 5 inch pounds Do not over tighten 8 Replace the antenna SIM battery and battery cover as described in the procedures 050479o Fi...

Page 26: ...he plastic tweezers to lift the transceiver board gasket away from the transceiver board see Figure 7 G This product contains static sensitive devices Use anti static handling procedures to prevent electrostatic discharge ESD and component damage 050480o Figure 7 Removing the Gasket From the Transceiver Board G The flexible printed cable FPC flex is easily damaged Exercise extreme care when handli...

Page 27: ...embly 3 Carefully work the flat end of the disassembly tool under the flex connector and remove the connector from the transceiver board See Figure 8 050477o Figure 8 Disconnecting the Flex from the Transceiver Board Flex Connector Transceiver Board Disassembly Tool ...

Page 28: ... its mating connector on the transceiver board and press firmly until it snaps into place 7 Replace the rear housing antenna SIM battery and battery cover as described in the procedures 050482o Figure 9 Removing the transceiver PC board assembly Be sure the volume smart buttons and voice button are correctly positioned in relation to the corresponding switches on the transceiver board Verify opera...

Page 29: ...To replace remove any protective covering to expose the keypad adhesive 4 Carefully set the keypad volume smart buttons and voice button assembly onto the metal switchdome assembly Ensure the volume smart key keypads will contact the switchdome assembly on the transceiver board when installed 5 Insert the keypad into the front housing ensuring the keys align properly with the openings in the front...

Page 30: ...one out of the front housing as shown in Figure 11 3 To replace insert the microphone into its place in the front housing Ensure that the elastomeric connector is facing upward Press the microphone firmly into place 4 Replace the transceiver board assembly display flex connector rear housing assembly antenna SIM battery and battery cover as described in the procedures 040248o Figure 11 Removing th...

Page 31: ...ve battery cover battery SIM antenna rear housing and transceiver board assembly as described in the procedures 2 Flex the right side of the front housing assembly to allow the flip assembly hinge to separate from the knuckle see Figure 12 050485o Figure 12 Removing the Flip Assembly Knuckle Front Housing Flip Assembly ...

Page 32: ... Insert the left side of the flip assembly into the left knuckle on the front housing 6 Carefully bend the right knuckle on the front housing to insert the flip hinge into the right knuckle Ensure that the flip opens and closes easily 7 Replace the transceiver board assembly rear housing antenna SIM battery and battery cover as described in the procedures G The flexible printed cable FPC flex is e...

Page 33: ...d pry down flip cover to the bottom to release the flip cover see Figure 14 3 Slide the flip cover down to the bottom and lift the cover away from the flip assembly 4 To replace align the flip cover to the flip assembly 5 Carefully press the flip cover onto the flip assembly until all latches are fully engaged 6 Replace the flip assembly transceiver board assembly rear housing antenna SIM battery ...

Page 34: ...ssembly 4 Carefully lift the display bracket up and away from the display assembly 5 To replace align the display bracket over the display assembly 6 Carefully and gently lower the display bracket onto the display assembly Press the display bracket into place so that all the latches are attached to the display assembly 7 Insert and tighten the four T6 screws to a torque setting of 16 Ncm 8 Replace...

Page 35: ...ard assembly flip assembly cover and flip display bracket as described in the procedures 2 Use the plastic tweezers to remove the camera assembly snubber from the flip assembly see Figure 16 Set the snubber aside for reassembly G The flexible printed cable FPC flex is easily damaged Exercise extreme care when handling 050480o Figure 16 Camera Assembly Snubber Removal Camera Assembly Snubber ...

Page 36: ...y and flex out of the display assembly 5 To replace carefully press the camera assembly into its slot in the flip display assembly 6 Insert the end of the camera assembly flex cable into its slot in the ZIF connector on the flip display assembly Avoid damage to the flex cable 050491o Figure 17 Camera Assembly Flex Connector Removal 050492o Figure 18 Camera Assembly Removal ...

Page 37: ...06 37 Level 1 and 2 Service Manual Disassembly 7 Replace the flip display assembly flip assembly cover flip assembly transceiver board assembly rear housing antenna SIM battery and battery cover as described in the procedures ...

Page 38: ...housing and transceiver board assembly flip assembly cover flip display bracket and camera module as described in the procedures 2 Use the disassembly tool to unseat the display flex connector see Figure 19 G The flexible printed cable FPC flex is easily damaged Exercise extreme care when handling 050491o Figure 19 Display Flex Connector Removal ...

Page 39: ... to unseat the display module flex connector see Figure 20 4 Turn the display module printed circuit board over and use the plastic tweezers to lift away the display module from the flip see Figure 21 050495o Figure 20 Camera Assembly Flex Connector Removal 050496o Figure 21 Display Module Removal ...

Page 40: ... the slot in the flip hinge 5 Remove the adhesive backing from the motor vibrator and flex 6 Align the motor vibrator to its location in the flip assembly 7 Gently but firmly press the motor vibrator and flex into it s pocket until properly seated in the flip assembly 8 Replace the camera assembly display assembly flip assembly cover flip assembly transceiver board rear housing antenna SIM battery...

Page 41: ... such as menu and stored memory such as phone books or even just program a unit with basic user information such as language selection V235 telephones use TrueSync synchronization software to effect a personality transfer Identification Each Motorola GSM device is labeled with a variety of identifying numbers The following information describes the current identifying labels Mechanical Serial Numb...

Page 42: ...n mobile station types or individual units The full IMEI structure is listed in Table 2 Where TAC Type Allocation Code formerly known as Type Approval Code NN Reporting body identifier XXXXXX Type Identifier ZZZZZZ Individual unit serial number A Phase 1 0 Phase 2 check digit defined as a function of all other IMEI digits Other label number configurations present are TRANSCEIVER NUMBER Identifies ...

Page 43: ...he phone as described in the procedures 4 Insert the test SIM into the SIM slot 5 Replace the battery as described in the procedures 6 Press to turn the phone ON Manual Test Mode Commands Table 3 Manual Test Commands Key Sequence Test Function Name Remarks Menu 048263 Enter manual test mode End Key Exit manual test mode 54 Suspend Required for all Test Mode Operations 0 0 0 Select tone 0 0 0 1 Sel...

Page 44: ... Boom Spk RX unmute TX unmute 10 0 3 Set band GSM 900 10 0 4 Set band DCS 1800 10 0 5 10 0 6 Set dual band GSM 900 1800 10 1 0 Read band 3 GSM 4 DCS 5 PCS 6 GSM DCS 18 0 Initialize non volatile memory Master Reset 18 1 Initialize non volatile memory Master Clear 55 2 001 Test Display All pixels ON 55 2 000 Test Display All pixels OFF 55 2 002 Test Display Checkerboard pattern A 55 2 003 Test Displ...

Page 45: ...defective Check to make sure that the antenna pin is properly connected to the transceiver board assembly If connected properly substitute a known good antenna If the fault is still present proceed to b b Transceiver board assembly defective Replace the transceiver board assembly refer to 1c Verify that the fault has been cleared and reassemble the unit with the new transceiver board assembly 3 Di...

Page 46: ...e flex connector from the flip assembly to the transceiver board assembly If flex is at fault replace flip assembly If flex connector is at fault proceed to d If connection is not at fault proceed to b b Flip assembly defective Temporarily replace the flip assembly with a known good assembly If fault has been cleared reassemble with the new flip assembly If fault not cleared proceed to c c Antenna...

Page 47: ...atteries in the rear pocket of the desktop charger Check LED display for the charging indications If these are charging properly then the internal charger is at fault Replace the transceiver board assembly refer to 1c Verify that the fault has been cleared and reassemble the unit with the new transceiver board assembly 11 Real Time Clock resetting when standard battery is removed Lithium button ce...

Page 48: ...pril 03 2006 6809495A43 C Troubleshooting V235 GSM Exploded View Diagram 051918o Figure 24 Exploded View Diagram 2 5 1 6 8 9 11 12 14 15 16 17 18 19 3 4 7 10 13 34 33 32 31 30 29 29 27 26 25 24 23 22 21 20 ...

Page 49: ...171191A01 Flex assembly 14 7288988Y01 Main display assembly 15 0170388D02 Speaker 16 0170388B02 Flip housing assembly Silver 17 6171204A02 Lens main display 18 1371145A03 Escutcheon TIM Silver 19 1571134A02 Front housing assembly Silver 20 AAHN5648A AAHN5675A Battery door Silver PF4 Battery door Silver PF5 21 SNN5766A Battery 22 0571205A02 RF grommet Silver 23 0370303A04 Screw rear housing M1 6x4 ...

Page 50: ...se contact EMEA at 49 461 803 1404 E There is a danger of explosion if the Lithium Ion battery pack is replaced incorrectly Replace only with the same type of battery or equivalent as recommended by the battery manufacturer Dispose of used batteries according to the manufacturer s instructions ...

Page 51: ...748 Headset Mono Customizable Universal SYN9350 Headset One Touch 4 Color Customizable Universal SYN9749 Consumer Personalization Carry Case Licensee Lanyard Silver CHYN4546 Lanyard Silver AAYN4402 In Vehicle Solutions Self Install Car Kit Smart Drive Motorola SYN1134 Self Install Car Kit Smart Drive Motorola SYN1137 Smart Cable EMU Motorola SYN1003 Vehicle Power Adapter EMU VC700 SYN0847 Power So...

Page 52: ...SPN5189 Travel Charger EMU Mid Rate Switcher INDIA SPN5194 Travel Charger EMU Mid Rate Switcher MEXICO SPN5186 Travel Charger EMU Mid Rate Switcher PRC SPN5188 Travel Charger EMU Mid Rate Switcher TWN SPN5216 Travel Charger EMU Mid Rate Switcher UK HK SPN5190 Travel Charger EMU Mid Rate Switcher US ENG SPN5185 Travel Charger EMU Rapid Switcher Argentina SPN5197 Travel Charger EMU Rapid Switcher BR...

Page 53: ...cess Protocol WAP 12 features product 11 flip assembly removing and replacing 31 flip cover removing and replacing 33 I identification 41 international mobile station equipment identity 42 mechanical serial number 41 product 5 IMEI 42 in use indicator 15 indicators alert setting 15 battery level 15 in use 15 menu 15 message waiting 15 roam 15 signal strength 15 voice message waiting 15 Introductio...

Page 54: ...bly 26 volume smart buttons 29 roam indicator 15 S serial number mechanical 41 service manual about 6 revisions 7 scope 6 service policy 7 customer support 7 out of box failure 7 product support 7 service procedure ordering replacement parts 8 shut down upon battery removal 18 signal strength indicator 15 SIM Application Toolkit 12 SIM card 41 personality transfer 41 replacing 22 SIM removing and ...

Page 55: ......

Page 56: ...ated as such herein are trademarks of Motorola Inc Reg U S Pat Tm Off 2005 2006 Motorola Inc All rights reserved Personal Communications Sector Sawgrass International Concourse 789 International Parkway Mailstop S2C Sunrise FL 33325 6222 6809495A43 6809495A43 C ...

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