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PRC-PS-MS

1-1

CHAPTER 1

INTRODUCTION

1.1

 PRC-PS

The PRC-PS is a combination power supply and dual battery charger designed 
to power the PRC1099A transceiver, charge the BB-LA6 lead-calcium battery 
inside the transceiver and charge an additional BB-LA6 simultaneously. The 
PRC-PS can use a 50 or 60 Hz 110 VAC or 220 VAC (internally strapped) or a 
20 Vdc to 30 Vdc power source.

The PRC-PS includes the following features:

•

12.5 Vdc power supply with two battery charging capacity

•

3-level charging circuitry

•

AC or DC power source

•

Front panel status LEDs for each charging station

•

Front panel reset button

•

Full short circuit protection

Содержание PRC-PS

Страница 1: ...PRC PS Power Supply Battery Charger Operator Technical Manual Manual Part No PRC PS MS Release Date November 2006 Revision D ...

Страница 2: ...Datron World Communications Inc 995 Joshua Way Suite A Vista CA 92081 U S A Phone 760 597 1500 Fax 760 597 1510 E Mail customerservice dtwc com www dtwc com ...

Страница 3: ...PRC PS MS i Change Description Date of Revision Revision Letter Description of Changes Pages Affected 11 06 D Update format and overall content All ...

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Страница 5: ...o demonstrate that a remedy has been implemented If the user fails to perform the agreement will be terminated by further written notice from Datron Upon termination the user shall immediately return all original Software documentation and any copies of each to Datron This Software is licensed AS IS and Datron provides a war ranty that covers the media upon which the Software is embed ded for a pe...

Страница 6: ...of equipment 3 Date of installation Parts returned without this information will not be replaced In the event of a dispute over the age of the replacement part components date coded over 24 months previously will be considered out of warranty Remedies Buyer s sole remedies and the entire liability of Datron are set forth above In no event will Datron be liable to Buyer or any other person for any ...

Страница 7: ... States 4 3 4 3 Status LEDs 4 3 4 4 DC Power Supply 4 4 Figure 4 2 Power Supply Output Voltage and Current Chart 4 4 Chapter 5 Maintenance 5 1 Functional Test 5 1 Figure 5 1 Charger Output Check Setup 5 2 Figure 5 2 DC Current Check Setup 5 3 Figure 5 3 J1 Pin Assignments 5 4 5 2 Troubleshooting 5 6 Table 5 1 Troubleshooting Index 5 6 Figure 5 4 PRC PS Mainframe Schematic Diagram 994004 Rev K 5 13...

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Страница 9: ...ceiver and charge an additional BB LA6 simultaneously The PRC PS can use a 50 or 60 Hz 110 VAC or 220 VAC internally strapped or a 20 Vdc to 30 Vdc power source The PRC PS includes the following features 12 5 Vdc power supply with two battery charging capacity 3 level charging circuitry AC or DC power source Front panel status LEDs for each charging station Front panel reset button Full short circ...

Страница 10: ...Bulk charging rate 1 1A C 5 Bulk to overcharge transition voltage 14 0 Vdc Overcharge terminate current 110 mA C 50 Float charge voltage 13 3 Vdc Float to bulk transition voltage 12 0 Vdc Temperature coefficient on voltage levels 12 mV per C Current drain on battery 5 µA max with power off Nominal charge time 6 hrs with 80 discharged battery Mechanical Weight 4 6 kg 10 lbs Size HWD 10 cm x 24 cm x...

Страница 11: ...oltage 12 Vdc Max instantaneous output current 30A at 20 C Max continuous output current 7A at 20 C Internal resistance 0 02 ohms max fully charged Percent of original capacity versus storage time 90 after 3 months 80 after 6 months 60 after 12 months Mechanical Weight 2 5 kg 5 5 lbs Size HWD 9 4 cm x 24 2 cm x 5 8 cm 3 7 in x 9 5 in x 2 3 in Characteristic Description Mechanical Weight 0 23 kg 0 ...

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Страница 13: ...C PS can be configured for 110 VAC or 220 VAC by opening the case and changing the connections on the power transformer A label on the case indicates to what voltage level the transformer is set however it is prudent to visually inspect the power transformer to verify what input voltage it is configured to accept Refer to the Power Transformer Connections figure on page 2 3 CAUTION Always remember...

Страница 14: ... of the case the connections on the power transformer behind the regulator circuit board 5 If the transformer is configured for 110 VAC and you need it to be 220 VAC desolder terminals 3 4 5 and 6 Remove the jumper wires between terminal 2 and terminal 3 and the jumper between terminal 5 and terminal 6 Refer to the Power Transformer Connections figure on page 2 3 6 Install one of the jumpers betwe...

Страница 15: ...ce must provide 20 Vdc to 30 Vdc and be capable of supplying 9A A 24V vehicle battery is a typical DC power source The front panel DC INPUT connector is wired according to the figure below CAUTION Do not operate the PRC PS when connected to both an AC and DC power source Figure 2 2 Power Transformer Connections 110 3 VAC AC FUSE A 220 1 5 VAC AC FUSE A 1 2 3 4 5 6 7 8 SWITCH AC PLUG 1 2 3 4 5 6 SW...

Страница 16: ...rmal operation 2 2 3 DC Output Power The PRC PS is designed to provide 12 Vdc to the PRC1099A transceiver to power the radio and charge a BB LA6 attached to the radio through the front panel J1 connector It can also charge an additional BB LA6 lead calcium through the rear power connector J4 ...

Страница 17: ... power the PRC1099A and charge the BB LA6 installed in the PRC1099A The SET POWER connector J1 interfaces with the PRC1099A through the C991608 cable INTERNAL Charging Station Charges a BB LA6 attached to the back of the PRC PS Speaker Provides audio for the PRC1099A in receive mode AC FUSE F1 1 5A 250 VAC fuse 3A 115 VAC fuse DC FUSE F2 10A 250 Vdc fuse AC INPUT Voltage Connector J3 Accepts the 3...

Страница 18: ... connector to the PRC1099A accessory ACC connector 4 Install an additional BB LA6 battery to the rear of the PRC PS 5 Turn the front panel POWER switch to ON 6 Push the front panel RESET button to start charging on one or both charging stations 7 Observe the front panel status LEDs for the charging stations in use The yellow CHARGING LED should be lit For other LED indications refer to the Status ...

Страница 19: ... is fully charged Remove battery The battery may be left connected to the charger Table 3 1 Status LED Indications continued LED Meaning Required Action Figure 3 2 Charging Configuration PRC PS BB LA6 to 115 230 Vac source to 24 Vdc source C991609 C991608 J4 J1 J2 J3 PRC1099A BB LA6 ...

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Страница 21: ...tely 75 C The thermostat switch is wired in series with the DC fuse F2 so that if the chassis temperature exceeds 75 C the PRC PS turns off until it cools down below 75 C A transient absorbing diode D1 located at the DC fuse provides protection against large spikes If D1 detects a transient greater than 32 Vdc it goes into a short mode pulling the raw DC supply line to ground which causes the DC f...

Страница 22: ...he Q3 emitter provides current limiting and current sensing that allows the charger IC to maintain the charge current at 1 1A Capacitor C18 provides filtering for the Q3 internal driver Pin 5 is the supply input and pin 6 is ground Diode D5 prevents the BB LA6 from discharging when the PRC PS is turned off The bulk charge state continues until the BB LA6 voltage reaches a preset level 14 0 Vdc det...

Страница 23: ...y to the display board where it drives the FAULT LED through current limiting resistor R2 It also drives the base of Q1 that shunts voltage away from diodes D1 and D2 when it is conducting preventing the CHARGING and READY LEDs from lighting 4 3 2 Charge LED The state level output pin 10 drives the inverting input to operational amplifier U2 The non inverting input is fixed at 1 3 Vdc Pin 10 is at...

Страница 24: ...d potential Resistors R11 and R12 bias U1B to provide a stage gain of 3 setting the output to about 14 0 Vdc This output drives the Darlington pass transistor array formed by Q1 Q8 Q7 Q6 and Q5 Emitter resistors R33 through R36 ensure each transistor conducts an equal portion of the current Series resistor R6 acts as a current sensor for the output current path When the voltage dropped across R6 e...

Страница 25: ...30 000 µF to 150 000 µF 25 Vdc Resistor 6 8 ohms 10W Resistor 1 5 ohms 50W Resistor 2 2 ohms 50W Resistor 82 ohms 50W DC VOM high impedance input DC Ammeter 3A scale minimum Clip jumpers Heat gun or blow torch 1 kHz audio source 0 5 Vpp output minimum 5 1 2 Test Procedure The following checks use the electrolytic capacitor to simulate a BB LA6 battery Charging Circuit Check 1 Set up the PRC PS usi...

Страница 26: ... a DC ammeter and 6 8 ohm and 2 2 ohm resistors in series and connect them across the capacitor Refer to the DC Current Check Setup figure on page 5 3 2 Measure the DC current It should be 1 1A 0 1A The CHARGING LED for the INTERNAL charging station should be lit when the ammeter and resistors are connected 3 Disconnect the ammeter and resistors The READY LED should light up after a few seconds Fi...

Страница 27: ...ng 2 Release the RESET button when the capacitor voltage is between 6 Vdc and 10 Vdc The CHARGING LED should light up Overcharge Voltage Check 1 Measure the DC voltage across the 82 ohm resistor It should be 14 0 Vdc 0 2 Vdc Undervoltage Protection Circuit Check 1 Connect the 2 2 ohm resistor across the capacitor 2 Observe that the FAULT LED lights up after a few seconds Figure 5 2 DC Current Chec...

Страница 28: ...ss pins A and E on the C991608 cable connector 2 Measure the DC voltage at these pins The DC voltage should be 12 5 Vdc 0 Vdc 3 Disconnect the 2 2 ohm resistor and connect the 1 5 ohm resistor in series with the DC ammeter to pins A and E on the C991608 cable connector The DC current should be 6A 0 3A 4 Remove the 1 5 ohm resistor and reconnect the ammeter across pins A and E on the C991608 cable ...

Страница 29: ...thermostat trips back on Audio Circuit Check 1 Use an AC voltmeter to monitor the AC voltage across the speaker pins P and A on the SET POWER connector 2 Turn the front panel AUDIO GAIN control to the SPKR OFF position 3 Adjust the 1 kHz audio source for 0 5 Vpp and apply the audio signal to pins A and P on the SET POWER connector J1 4 Slowly turn the AUDIO GAIN control clockwise until the AC volt...

Страница 30: ...he Current Source section on page 5 6 DC Current Check section on page 5 2 step 2 Refer to the Bulk Charging Current Regulation section on page 5 7 DC Current Check section on page 5 2 step 3 Refer to the Current Source section on page 5 6 DC Output Check section on page 5 3 Refer to the Float Charge Voltage section on page 5 8 Reset Circuit Check section on page 5 3 Refer to the Reset Function se...

Страница 31: ... lit replace the IC 7 The CHARGING LED should now be lit If more than one LED is lit refer to the Status LEDs section on page 5 10 8 On the pass transistor Q3 measure the voltage from the emitter to the base If it is between 0 6 Vdc to 1 0 Vdc skip to step 9 If the voltage is below 0 6 Vdc replace the IC If the voltage is above 1 0 Vdc replace the transistor 9 Using an ohmmeter or a diode checker ...

Страница 32: ...p inspect the RESET switch and associated wiring Overcharge Voltage This section assumes a failure in the Overcharge Voltage Check section on page 5 3 if the overcharge voltage is not set at 14 0 Vdc Turn the PRC PS on for the following checks 1 R19 20 k ohms R22 100 k ohms and R18 330 k ohms are 1 resistors that set the overcharge voltage Turn the PRC PS off remove the AC power cable and measure ...

Страница 33: ...ing an external DC power source check all internal and external wiring and connections 4 Check rectifier bridge BR1 by measuring the resistance across each of the four internal diodes If the forward resistance is less than 10 ohms and the reverse resistance is very high mega ohms the diode is okay if it is not replace the diode 5 On rectifier bridge BR1 measure the resistance from the terminal to ...

Страница 34: ...ross the bias diodes and series 10 k ohms resistor R17 4 If the READY LED does not light up properly skip to step 8 5 If the FAULT LED lights up at the same time as other LEDs replace the transistor Q1 on the display board and go back to step 3 CHARGE LED Failure 1 If the CHARGING LED does not light up properly measure the op amp output voltage during the bulk charge or overcharge states If it is ...

Страница 35: ...dc but the power supply output power J1 connector pins A and E is not 12 5V measure the collector to base and emitter to base resistance of the pass transistors Q1 Q5 through Q8 It may be necessary to lift the legs of these transistors to get accurate measurements Replace any defective transistors Audio Amplifier Output This section assumes there is no audio output at the speaker 1 Measure the DC ...

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Страница 37: ... 220 VAC WIRING T1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 15 U3 UC3906N Q3 TIP2955 D5 1N5400 R23 0 22 1W C19 2 2uF 50V C17 0 1uF C18 0 22uF R21 100K R20 100K R19 20K 1 C20 0 1uF R22 100K 1 R18 330K 1 7 5 6 U2B LM358N D3 D4 C21 2 2uF R17 10K 1 2 J2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 15 U4 UC3906N Q4 TIP2955 D8 1N5400 R30 0 22 1W C24 2 2uF 50V C22 0 1uF C23 0 22uF R28 100K R27 100K R26 20K 1 C25 0 1uF...

Страница 38: ...16 C14 R6 R35 R31 R34 J7 R36 D1 C15 R1 1 1 1 1 J5 D9 K1 C10 C9 1 1 1 1 R17 C16 C21 J4 U2 R24 C20 C26 C18 R23 U3 D7 D6 D3 D4 D5 R18 R19 R20 R25 R26 R27 C17 C19 R22 R21 Q7 Q3 Q4 Q5 Q6 Q8 Q1 R30 C23 U4 J1 J2 C25 D2 C5 C27 C30 C28 J3 C22 C24 D8 R7 R8 R4 C8 C6 VOLTAGE U1 R28 R29 R37 R39 R38 R33 R11 R12 CURRENT R3 R2 738105 REV F C2 C32 ...

Страница 39: ... 254224 CAP 0 22MF 100V MYLAR C19 230020 CAP 2 2MF ELECT C20 275104 CAP 0 1UF X7R 50V 10 0 1LS C21 241020 CAP 2 2MF DIP TANTALUM C22 275104 CAP 0 1UF X7R 50V 10 0 1LS C23 254224 CAP 0 22MF 100V MYLAR C24 230020 CAP 2 2MF ELECT C25 275104 CAP 0 1UF X7R 50V 10 0 1LS C26 241020 CAP 2 2MF DIP TANTALUM C27 241047 CAP 0 47MF 35V DIP TANT C28 241020 CAP 2 2MF DIP TANTALUM C29 275104 CAP 0 1UF X7R 50V 10 ...

Страница 40: ...ATCH SEALED DS1E Q1 310098 XISTOR NPN MJE200 TO126 R1 137332 RES 3 3K 1 2W 2 FILM R11 124472 RES 4 7K 1 4W 5 CARBON FILM R12 124103 RES 10K 1 4W 5 CARBON FILM R13 134039 RES 3 9 OHM 1 2W 5 FILM R14 124470 RES 47 OHM 1 4W 5 CARBON FILM R15 124821 RES 820 OHM 1 4W 5 CF R16 124150 RES 15 OHM 1 4W 5 CARBON FILM R17 124103 RES 10K 1 4W 5 CARBON FILM R18 127334 RES 330K 1 4W 1 FILM MTL R19 127203 RES 20...

Страница 41: ...CARBON FILM R38 113754 RES 750K 1 8W 5 CARBON FILM R39 113153 RES 15K 1 8W 5 CARBON FILM R4 170223 RES 5K TRIMMER R6 161005 RES 0 05 OHM 3W POWER R7 124472 RES 4 7K 1 4W 5 CARBON FILM R8 170345 RES 1K TRIM SIDE ADJ U1 330081 IC LIN LM358N DIP8 OP AMP U2 330081 IC LIN LM358N DIP8 OP AMP U3 330325 IC UC3906N U4 330325 IC UC3906N U5 330043 IC TDA2002 H TO220 XQ1 812406 SCREW PAN PHIL 4 40X3 8 XQ1 821...

Страница 42: ...5 Maintenance PRC PS MS 5 19 Figure 5 6 Display Board Component Locations 738106 Rev A 7 3 8 10 6 R E V A ...

Страница 43: ...E 1N4148 1N4150 DO 35 D4 320002 DIODE 1N4148 1N4150 DO 35 D5 320002 DIODE 1N4148 1N4150 DO 35 D6 320002 DIODE 1N4148 1N4150 DO 35 D7 320415 LED RED D8 320417 LED YELLOW D9 320416 LED GREEN J1 610103 HEADER MLX 6PIN 100 Q1 310057 XISTOR NPN PN2222A TO92 Q2 310057 XISTOR NPN PN2222A TO92 R1 137272 RES 2 7K 1 2W 5 FILM R2 124103 RES 10K 1 4W 5 CARBON FILM R3 134182 RES 1 8K 1 2W 5 CARBON FILM R4 1241...

Страница 44: ...ERRITE SHIELD 43 MAT J1 610089 CONN CHAS 14P U318 U J2 610106 CONN MLX 2PIN SHELL 100 W LK J2 613097 CONN CHAS 2P MS3102A10SL 4S J3 610106 CONN MLX 2PIN SHELL 100 W LK J3 610401 RECEPTACLE 3 PIN AC J5 610176 CONN MLX 3PIN SHELL 156 J6 610179 CONN MLX 4PIN SHELL 156 J7 610106 CONN MLX 2PIN SHELL 100 W LK J8 610512 CONNECTOR SMB PLUG RT AGL L1 490302 BEAD FERRITE SHIELD 43 MAT R1 124104 RES 100K 1 4...

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