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RCH-20  
 

 

JOTRON electronics a.s. 

 

 

 

 

RCH-20

  

Charger for Tron TR20 GMDSS /PLUS

  

  

Technical Handbook 

 
 

Dec.2001 

 
 

Summary of Contents for RCH-20

Page 1: ...RCH 20 JOTRON electronics a s RCH 20 Charger for Tron TR20 GMDSS PLUS Technical Handbook Dec 2001 ...

Page 2: ...RCH 20 AMENDMENT RECORD AMDT INCORP BY DATE PAGE S AMDT INCORP BY DATE PAGE S 1 21 2 22 3 23 4 24 5 25 6 26 7 27 8 28 9 29 10 30 11 31 12 32 13 33 14 34 15 35 16 36 17 37 18 38 19 39 20 40 ...

Page 3: ...ntegrated circuits Observe handling precautions to avoid static discharges which may damage these devices JOTRON electronics a s reserves the right to make changes without further notice to any products or modules described herein to improve reliability function or design JOTRON electronic a s does not assume any liability arising out of the application or use of the described product ...

Page 4: ...TIONAL DESCRIPTION 3 1 Precautions and Warnings 3 1 Batteries 3 1 Connectors and cables 3 1 Storage and safe handling 3 1 4 OPERATING INSTRUCTIONS 4 1 Operation 4 1 Notes on charging 4 1 5 TECHNICAL DESCRIPTION 5 1 Introduction 5 1 Main board 80011 5 1 6 MAINTENANCE 6 1 7 DIAGRAMS 7 1 8 PARTS LISTS 8 1 ...

Page 5: ...ron TR20 PLUS handheld VHF radios It is a dual slot intelligent rapid charger with microprocessor control It will fully charge an empty battery pack in less than 4 hours It is designed to operate from 12 24 VDC or 115 230VAC with an external adapter It is equipped with mounting holes for wall mounting or mounting on a table or shelf ...

Page 6: ... max 115 230VAC with external mains adapter Current consumption 600mA 12VDC Charging current 450 500mA Rapid charge Trickle charge approx 10mA Charge termination method V t and timeout Charging time 4 hours on a fully discharged NiMH battery X 80059 Operating temperature range 0 to 40 C Size 155mm wide x 69mm height x 83mm depth Weight Approx 300g ...

Page 7: ...n fire explosion and severe burn hazard Avoid charging batteries below 0 C or above 40 C Connectors and cables When handling connectors and cables notice the following warnings Do not force plugs in place as this may damage the pins in the plugs Storage and safe handling Storage temperature range is from 30 C to 70 C and operating temperature is from 0 C to 40 C Cleaning of the equipment can be do...

Page 8: ...pter When using DC supply the DC cable 80084 should be used The connector is a standard 5 5mm AC adaptor type To prevent problems with wrong polarity the RCH 20 is designed to be independent of the power supply polarity The charger has two LED indicators one for each battery They have the following functions Flashing orange No battery detected Flashing red Battery detected trickle charging Continu...

Page 9: ...urrent consumption of the radio may confuse the charger to terminate before full charge is reached If the battery has been totally discharged below the Tron TR20 switch off threshold or stored for a long time the charger may terminate before full charge is reached In this case do as follows o Insert the battery and charge for a few minutes o Discharge the battery by inserting it into the radio and...

Page 10: ...resistors R32 R36 This voltage is amplified by IC2A and fed to one of the A D inputs of IC1 The reading from this A D input is used to correct the duty cycle of the PWM output and hence adjust the charging current Voltage measurement circuit IC2B and IC2C are used as voltage amplifiers The offset voltage supplied from IC2D is used to give the amplifiers a 0 5V output which is feed to one of the A ...

Page 11: ... to terminate the charging if no other termination occurs within approx 4 5 hours When there is no battery or a fully charge battery is placed in the slot the charger will send short charging pulses to each slot This is used to detect whether a battery is present in each slot as well as supplying trickle charge to fully charged batteries The trickle charge is approx 10mA on average Status of the c...

Page 12: ...RCH 20 6 1 6 MAINTENANCE No maintenance is necessary ...

Page 13: ...an Main board part 1 KP 80011 1 2 Place plan Main board part 2 KP 80011 2 2 NOTE The place plan drawings show the maximum configuration for a printed circuit board For components actually fitted on a printed circuit board please refer to the parts list for that board ...

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Page 17: ...RCH 20 8 1 8 PARTS LISTS Part list Complete Charger BOM 99920 Part list Main Board BOM 80011 ...

Page 18: ... RCH 20 10 80357 LABEL FOR PACKINGBOX LADER TR 20 11 80061 Etikett til RCH 20 batteri lader Fascal 805 Orange Sort txt 2 99886 BATTERILADER BUNNDEL Cycoloy C2100 HF Sort 3 99887 Spring 3 0 x 2 4 x10mm BeCu 4 99888 KONTAKTPINNE I LADER RCH 20 5 99889 LYSLEDER I LADER RCH 20 6 99916 Hjelpesnepp lader Cycoloy C2100 HF Sort 7 99883 BATTERILADER TOPPDEL Cycoloy C2100 HF Sort 8 99890 PT SCREW SENKH KB30...

Page 19: ...RS340T3 D007 80055 PIC16F73 I SO Microchip PIC 16F73 I SO IC001 99262 TS914 Quad R R CMOS OpAmp 2 7 16Volt SO14 40 to 125 C IC002 99644 Voltage regulator 5 V SOT223 National LM340MP 5 0 IC003 80032 DC Power Jack Ø 5 5 ø 2 0 mm LD 0202 Lih Sheng LD 0202 J001 99807 TERM STRIP 2 54mm 2x3pin l 11mm Samtec TSW103 07TD J002 99124 INDUCTOR POWER 100uH 1 2A SMD PULSE P0752 104T L001 99124 INDUCTOR POWER 1...

Page 20: ...902 R021 93284 CR 0805 15k 1 ROHM MCR10 EZH F 1502 R022 93292 CR 0805 33k 1 ROHM MCR10 EZH F 3302 R023 93280 CR 0805 10k 1 ROHM MCR10 EZH F 1002 R024 93280 CR 0805 10k 1 ROHM MCR10 EZH F 1002 R025 93280 CR 0805 10k 1 ROHM MCR10 EZH F 1002 R026 93280 CR 0805 10k 1 ROHM MCR10 EZH F 1002 R027 93280 CR 0805 10k 1 ROHM MCR10 EZH F 1002 R028 93280 CR 0805 10k 1 ROHM MCR10 EZH F 1002 R029 93304 CR 0805 1...

Page 21: ...RCH 20 CONTACT JOTRON JOTRON electronics a s P O box 54 N 3280 Tjodalyng NORWAY Telephone switchboard 47 33 13 97 00 Fax 47 33 12 67 80 Email salesair jotron com WWW http www jotron com ...

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