Motorola Gp328 Gp338 Detailed 6804110j64 F Manual

							GP328/GP338
Portable RadiosDetailed Service Manual6804110J64-F
June, 2002                                                                                              
						

							Computer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semi-
conductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclu-
sive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form, the
copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola
products described in this manual may not be copied or reproduced in any manner without the express written permission
of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant, either directly or by implica-
tion, estoppel or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the
normal non-exclusive royalty-free license to use that arises by operation of law in the sale of a product.                                                                                              
						

							Ó1999, 2000, 2001, 2002 by Motorola, Inc.
Motorola Technology Sdn. Bhd. (Co. No. 455657-H)
Bayan Lepas FIZ Phase III
11900 Penang, Malaysia
Printed in Malaysia
June, 2002                                                                                              
						

							iSAFETY AND GENERAL INFORMATIONInformation and Instructions on RF Energy Exposure and Product SafetyREAD THIS IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION BEFORE
USING YOUR MOTOROLA HANDHELD PORTABLE TWO-WAY RADIOThe information provided in this document supersedes the general safety information contained in user guides
published prior to June 2001. For information regarding radio use in a hazardous atmosphere please refer to the
Factory Mutual (FM) Approval Product Listing Manual or Instruction Card, which is included with radio models
that offer this capability.Compliance with RF Energy Exposure StandardsYour Motorola two-way radio is designed and tested to comply with a number of national and international
standards and guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy.
This radio complies with the IEEE (FCC) and ICNIRP exposure limits for occupational/controlled RF exposure
environment at duty cycles of up to 50% talk-50% listen and should be used for occupational use only. In terms of
measuring RF energy for compliance with the FCC exposure guidelines, your radio radiates measurable RF
energy only while it is transmitting (during talking), not when it is receiving (listening) or in standby mode. Note
that the approved, supplied batteries for this radio are rated for a 5-5-90 duty cycle (5% talk - 5% listen - 90%
standby), even though this radio complies with the FCC occupational exposure limits at duty cycles of up to 50%
talk.
Your Motorola two-way radio complies with the following RF energy exposure standards and guidelines:• United States Federal Communications Commission, Code of Federal Regulations; 47CFR part
2 sub-part J
• American National Standards Institute (ANSI) / Institute of Electrical and Electronic Engineers
(IEEE) C95. 1-1992
• Institute of Electrical and Electronic Engineers (IEEE) C95.1-1999 Edition
• International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998
• Ministry of Health (Canada) Safety Code 6. Limits of Human Exposure to Radio frequency Elec-
tromagnetic Fields in the Frequency Range from 3 kHz to 300 GHz, 1999
• Australian Communications Authority Radiocommunications (Electromagnetic Radiation -
Human Exposure) Standard 2001
• ANATEL, Brazil Regulatory Authority, Resolution 256 (April 11, 2001) “additional requirements
for SMR, cellular and PCS product certification.”Operational Instructions and Training GuidelinesTo ensure optimal performance and compliance with the occupational/controlled environment RF energy
exposure limits in the above standards and guidelines, users should transmit no more than 50% of the time and
always adhere to the following procedures:Transmit and ReceiveTo transmit (talk), push the Push-To-Talk (PTT) button; to receive, release the PTT button.Hand-held Radio OperationHold the radio in a vertical position with the microphone one to two
inches (2.5 to 5 cm) away from the lips.Body-worn OperationAlways place the radio in a Motorola approved clip, holder, holster, case,
or body harness for this product. Use of non-Motorola-approved
accessories may exceed FCC RF exposure guidelines.
If you do not use a Motorola approved body-worn accessory and are not
using the radio in the intended use position in front of the face, then ensure the antenna and the radio are kept
2.5 cm (one inch) from the body when transmitting.2.5to5.0cm
(1 to 2 in.)                                                                                              
						

							iiAntennas & BatteriesUse only Motorola approved supplied antenna or Motorola approved replacement antenna.Unauthorized antennas, modifications, or attachments could damage the radio and may violate FCC regulations.Use only Motorola approved supplied batteries or Motorola approved replacement batteries.Use of non-Motorola-approved antennas or batteries may exceed FCC RF exposure guidelines.Approved AccessoriesFor a list of approved Motorola accessories please contact your dealer, or local Motorola representative.ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY
FacilitiesTo avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility where
posted notices instruct you to do so. Hospitals or health care facilities may be using equipment that is sensitive to
external RF energy.AircraftWhen instructed to do so, turn off your radio when on board an aircraft. Any use of a radio must be in accordance
with applicable regulations per airline crew instructions.Medical Devices• PacemakersThe Advanced Medical Technology Association (AdvaMed) recommends that a minimum separation of 6 inches
(15 centimeters) be maintained between a handheld wireless radio and a pacemaker. These recommendations
are consistent with those of the U.S. Food and Drug Administration.
Persons with pacemakers should:• ALWAYS keep the radio more than 6 inches (15 centimeters) from their pacemaker when the
radio is turned ON.
• not carry the radio in the breast pocket.
• use the ear opposite the pacemaker to minimize the potential for interference.
• turn the radio OFF immediately if you have any reason to suspect that interference is taking
place.
• Hearing AidsSome digital wireless radios may interfere with some hearing aids. In the event of such interference, you may
want to consult your hearing aid manufacturer to discuss alternatives.• Other Medical DevicesIf you use any other personal medical device, consult the manufacturer of your device to determine if it is
adequately shielded from RF energy. Your physician may be able to assist you in obtaining this information.Driver SafetyCheck the laws and regulations on the use of radios in the area where you drive. Always obey them.
When using your radio while driving, please:• Give full attention to driving and to the road.
• Use hands-free operation, if available.
• Pull off the road and park before making or answering a call if driving conditions so require.NOTENearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately 
shielded, designed, or otherwise configured for electromagnetic compatibility.                                                                                              
						

							iiiOPERATIONAL WARNINGS
For Vehicles With an Air BagDo not place a portable radio in the area over an air bag or in the air bag deployment area. Air
bags inflate with great force. If a portable radio is placed in the air bag deployment area and the
air bag inflates, the radio may be propelled with great force and cause serious injury to
occupants of the vehicle.Potentially Explosive AtmospheresTurn off your radio prior to entering any area with a potentially explosive atmosphere, unless it is a radio type
especially qualified for use in such areas as “Intrinsically Safe” (for example, Factory Mutual, CSA, UL, or
CENELEC). Do not remove, install, or charge batteries in such areas. Sparks in a potentially explosive
atmosphere can cause an explosion or fire resulting in bodily injury or even death.Blasting Caps and AreasTo avoid possible interference with blasting operations, turn off your radio when you are near electrical blasting
caps, in a blasting area, or in areas posted: “Turn off two-way radio.” Obey all signs and instructions.OPERATIONAL CAUTIONS
AntennasDo not use any portable radio that has a damaged antenna. If a damaged antenna comes into
contact with your skin, a minor burn can result.BatteriesAll batteries can cause property damage and/or bodily injury such as burns if a conductive material such as
jewelry, keys, or beaded chains touch exposed terminals. The conductive material may complete an electrical
circuit (short circuit) and become quite hot. Exercise care in handling any charged battery, particularly when
placing it inside a pocket, purse, or other container with metal objects.NOTEThe areas with potentially explosive atmospheres referred to above include fueling areas
such as below decks on boats, fuel or chemical transfer or storage facilities, and areas
where the air contains chemicals or particles, such as grain, dust or metal powders. Areas
with potentially explosive atmospheres are often but not always posted.!W A R N I N G!!C a u t i o n                                                                                              
						

							iv                                                                                              
						

							vTable of ContentsSection 1Introduction1.0 Scope of Manual .................................................................................................. 1-1
2.0 Warranty and Service Support............................................................................. 1-1
2.1 Warranty Period ............................................................................................. 1-1
2.2 After Warranty Period ..................................................................................... 1-1
2.3 Piece Parts ..................................................................................................... 1-2
2.4 Technical Support .......................................................................................... 1-2Section 2Service Aids1.0 Recommended Test Tools................................................................................... 2-1Section 3Power Up Self-Test1.0 Error Codes ......................................................................................................... 3-1Section 4Controller Information1.0 Overview .............................................................................................................. 4-1
2.0 Radio Power Distribution ..................................................................................... 4-1
3.0 Controller Board................................................................................................... 4-2
3.1 General........................................................................................................... 4-2
3.2 Digital Architecture ......................................................................................... 4-3
3.3 Controller Schematics (330-400MHz for 8485726Z01, 403-470MHz for
8480450Z03 & 450-527MHz for 8485641Z02)............................................... 4-5
Complete Controller Schematic Diagram ............................................................... 4-5
Controller ASFIC/ON_OFF Schematic Diagram .................................................... 4-6
Controller Micro Processor Schematic Diagram .................................................... 4-7
Controller Memory Schematic Diagram ................................................................. 4-8
Controller Audio Power Amplifier Schematic Diagram ........................................... 4-9
Controller Interface Schematic Diagram .............................................................. 4-10
3.4 Controller Schematics (330-400MHz for 8485726Z04, 403-470MHz for
8480450Z13 & 450-527MHz for 8485641Z06)............................................. 4-11
Complete Controller Schematic Diagram ............................................................. 4-11
Controller ASFIC/ON_OFF Schematic Diagram .................................................. 4-12
Controller Micro Processor Schematic Diagram .................................................. 4-13
Controller Memory Schematic Diagram ............................................................... 4-14
Controller Audio Power Amplifier Schematic Diagram ......................................... 4-15
Controller Interface Schematic Diagram .............................................................. 4-16
3.5 Controller Schematics (136-174MHz for 8486062B09 & 8486062B12) ....... 4-17
Complete Controller Schematic Diagram ............................................................. 4-17                                                                                              
						

							viController ASFIC/ON_OFF Schematic Diagram ...................................................4-18
Controller Micro Processor Schematic Diagram ...................................................4-19
Controller Memory Schematic Diagram ................................................................4-20
Controller Audio Power Amplifier Schematic Diagram..........................................4-21
Controller Interface Schematic Diagram ...............................................................4-22
3.6 Controller Schematics (136-174MHz) for PCB 8486062B16........................4-23
Complete Controller Schematic Diagram..............................................................4-23
Controller ASFIC/ON_OFF Schematic Diagram ...................................................4-24
Controller Micro Processor Schematic Diagram ...................................................4-25
Controller Memory Schematic Diagram ................................................................4-26
Controller Audio Power Amplifier Schematic Diagram..........................................4-27
Controller Interface Schematic Diagram ...............................................................4-28
3.7 Controller Schematics (29-42/35-50MHz) ....................................................4-29
Controller Hierarchical Diagram ............................................................................4-29
Complete Controller Schematic Diagram..............................................................4-30
Controller ASFIC/ON_OFF Schematic Diagram ...................................................4-31
Controller Microprocessor Schematic Diagram ...................................................4-32
Controller Interface and Memory Schematic Diagram ..........................................4-33
Controller Audio Power Amplifier Schematic Diagram..........................................4-34Section 5Keypad Board Information1.0 Theory of Operation .............................................................................................5-1
2.0 Troubleshooting Chart..........................................................................................5-2
3.0 Parts List (Keypad Basic) .....................................................................................5-3
4.0 Keypad Board And Schematic Diagram...............................................................5-5
Keypad Board Top and Bottom View (PCB No. 8480574Z05) ...............................5-5
Keypad Board Schematic Diagram .........................................................................5-6Section 6AModel Chart and Test Specifications (403-470 Mhz)1.0 Model Chart....................................................................................................... 6A-1
2.0 Specifications .................................................................................................... 6A-3
3.0 Transmitter ........................................................................................................ 6A-4
3.1 General ........................................................................................................ 6A-4
4.0 Receiver ............................................................................................................ 6A-6
4.1 Receiver Front-End...................................................................................... 6A-6
4.2 Receiver Back-End ...................................................................................... 6A-7
4.3 Automatic Gain Control Circuit .................................................................... 6A-8
5.0 Frequency Generation Circuitry ........................................................................ 6A-9
5.1 Synthesizer ................................................................................................ 6A-10
5.2 VCO - Voltage Controlled Oscillator .......................................................... 6A-11
6.0 Notes For All Schematics and Circuit Boards ................................................. 6A-13
7.0 Circuit Board/Schematic Diagrams and Parts List .......................................... 6A-15
UHF (403-470MHz) Main Board Top Side PCB No. 8480450Z03..................... 6A-15
UHF (403-470MHz) Main Board Bottom Side PCB No. 8480450Z03 ............... 6A-16