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Related Manuals for Motorola HTN9005 Series
Summary of Contents for Motorola HTN9005 Series
- Page 1 Multi-Unit Chargers Professional Radio...
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Page 2: Table Of Contents
CONTENTS Important Safety Instructions ..........1 Introduction ................3 General Description ..............7 Circuit Description ..............9 Troubleshooting ..............13 Exploded View ...............19 Component location/Schematics/Parts List .......20... -
Page 3: Important Safety Instructions
1. To reduce risk of injury, charge only the rechargeable Motorola authorised batteries listed in Table 1. Other batteries may explode, causing personal injury and damage. 2. Use of accessories not recommended by Motorola may result in risk of fire, WARNING electric shock, or injury. - Page 4 RECHARGEABLE BATTERY DISPOSAL OR RECYCLING Motorola is concerned about the environment and fully endorses and encourages the recycling or safe disposal of rechargeable batteries. Legislation exists in many countries regarding the collection, transportation and classification of spent batteries. Contact should be made with the relevant Government departments such as Environment or Waste Management Agencies for specific local requirements.
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Page 5: Introduction
In instances where the product is covered under a "return for replacement" or "return for repair" warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This is to ensure that the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty. - Page 6 Division (AAD). If no part number is assigned, the part is not normally available from Motorola. If the part number is appended with an asterisk, the part is serviceable by Motorola Depot only. If a parts list is not included, this generally means that no user-serviceable parts are available for that kit or assembly.
- Page 7 Technical Support Motorola Product Services is available to assist the dealer/distributors in resolving any malfunctions which may be encountered. UK/Ireland - Richard Russell Telephone: +44 (0) 1256 488 082 Fax: +44 01256 488 080 Email: BRR001@email.mot.com Central/East Europe - Siggy Punzenberger...
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Page 9: General Description
GENERAL DESCRIPTION The MDHTN3004/ MDHTN3005 Multi-Unit Battery Chargers are accessory items for Motorola Professional Radios using rechargeable nickel cadmium (Ni-Cd), nickel-metal-hydride (NiMH), and/or lithium-ion (Li-Ion) batteries. The MDHTN3004/ MDHTN3005 Multi-Unit Battery Charger kit comprise the following items listed in Table 1 Table 1. - Page 10 SPECIFICATIONS Table 3 lists multi-unit battery charger specifications. Table 3. Specifications Multi-Unit Charger Specification Input Voltage between 90 and 265Vac; 50/60Hz Size 44.7cm x 30.5cm x 13.5cm (17.6in. x 12in. x 5.3in.) Weight 3.93 Kg (8.65lbs.) Rapid Charge Rate 1200 mA Hours ±15% per pocket Operating Temperature Range 0°C - 50°C Rapid-Charge Temperature Window...
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Page 11: Circuit Description
12.5Vdc is routed through fuse F1, and applied to the circuitry as V_IN. The dc power supply is a non- repairable unit. Refer to the electrical parts list for the replacement Motorola part number. Other dc power in the circuitry is produced by: •... - Page 12 Precision Reference A +2.5v reference is derived from a precision voltage regulator, Zener diode (U1). This reference provides the accuracy required for Lithium battery charge control. It is measured by the microcontroller (U2), via the multiplexer (MUX) X0 and X5 inputs at U4 pins 13 and 5 respectively. Microcontroller (µC) The microcontroller (µC), module U2 queries the battery EPROM to determine the type of battery to be charged.
- Page 13 and the input to the op-amp is now equal to the value of only the amplifier offset error, Vos. The software algorithm operates on the A/D values read and stored in the steps above and corrects the current feedback signal. The microcomputer (U2 pins 4 and 12) now commands the Current Control D/A integrator (U5A) to increase or decrease the current, thereby bringing it to the corrected value.
- Page 14 approximately 8.4 VDC, or if the battery current exceeds a predetermined value, two transistors will open the charging circuit, preventing a potentially hazardous condition. If the: • temperature rise of the battery exceeds a defined rate, or • if the battery voltage reaches or exceeds the defined cut-off voltage, or •...
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Page 15: Troubleshooting
1. Remove the battery from the charger, and: a. make sure that it is a Motorola authorised battery listed in Table1. Other batteries may not charge. b. remove power from the battery charger and, using a clean dry cloth, clean the gold metal, charging con- tacts of the battery and charger. - Page 16 Test Procedures All connections made for resistance and voltage measurements are referenced to Battery- (BATT-1). Table 5. Test Procedures Setup Pass Record Test Procedure Requirements Data VBATT Thermistor EPROM Power Measure current through I DRAIN: I DRAIN ‹0.5 mA. 9.8V 0.33V Connected Off VBATT and record as...
- Page 17 Table 5. Test Procedures Measure current into VBATT Green LED On; I I BAT: after sufficient delay; verify BAT = 1250mA ± I Source: High Current 8.7V 1.98V Connected On status of the LED. 15% into VBATT; Accuracy I Source = ‹850mA.
- Page 18 Battery Charger Problems and Possible Cause Table 6 lists several problems that could occur with the multi-unit battery charger. Each of the problems corresponds with a corresponding test procedure described in Table 5. Table 6. Problems/Possible Causes of Failure Related Problem Test Possible Cause of Failure...
- Page 19 Each of these topics provides information vital to the successful operation and maintenance of your multi-unit battery charger. Preventive Maintenance The HTN9005 Series Multi-Unit Battery Chargers do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended. Inspection Check that the external surfaces of the multi-unit battery charger are clean, and that the power supply fan and charger pocket LEDs are functional.
- Page 20 When damaged parts are replaced, identical parts should be used. If the identical replacement component is not locally available, check the parts list for the proper Motorola part number and order the component from the nearest Motorola Communications Parts office listed in the Piece Parts Availability section (refer to Page 3).
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Page 21: Exploded View
EXPLODED VIEW Item Motorola Item Motorola Description Description Part Number Part Number 3385889L01 LABEL, Motorola 1485979L01 INSULATOR 1505277L02 HOUSING, Top 7505413001 BUMPER, Rubber (5) 4205722C02 CLIP, Fastener (3 req’d) 1485888L01 INSULATOR 1585887L01 HOUSING, Pocket 0705466Q01 BRACKET, Cover 3385890L01 LABEL, Warning (6 req’d) 0705169L01 BRACKET, Mounting (3 req’d) -
Page 22: Component Location/Schematics/Parts List
COMPONENT LOCATION DIAGRAM VIEWED FROM SIDE 1 (Reference Symbols Pocket One) LED ON SIDE 2 OF BOARD FL0830503O... - Page 23 TP12 TP10 100pF TP80 TP14 BAT-1 100pF +VLED U5 E 0.1uF 1000uF 0.1uF 100pF TP20 TP21 TP22 BAT-1 +2.5V 0.1uF 0.1uF BATTERY - J4:4 +2.5V LINK_3 18.7K 0.1uF 0.1uF TP23 TP17 8.87K THERMISTOR TP18 J4:2 .0033uF 100k BAT-1 2.21k 48.7K TP30 BAT-1 TP19...
- Page 24 2 through 6) may or may not be placed on the printed C139 C181 C223 2113741M69 0.1µF±10%; 50V R153 R212 R271 R330 0662057T75 circuit board. These components have no function in the HTN9005 Series C101 C143 C185 C227 2104296T01 0.1µF; 25V R147 R206 R265 R324 0662057A25 Multi-Unit Battery Charger application.
- Page 25 © 2000 by Motorola, Ltd. Basingstoke, Hampshire RG22 4PD United Kingdom and Motorola are marks of Motorola, Inc. Printed in EU 09/00. All Rights Reserved 6864110B42...