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Rockwell international COLLINS AN/PRC-515 Instruction Book

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5 2 3 - 0 7 6 9 1 4 4 - 0 0 1 2 1 1
1 July 1978
Rockwell
International
instruction book
COLLINS
AN/PRC-515
RADIO SET
Collins Telecommunications
Products Division
Electronic Systems Group
Rockwell International
Cedar Rapids, Iowa 52406
Printed in the United States of
America

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  • Page 1 5 2 3 - 0 7 6 9 1 4 4 - 0 0 1 2 1 1 1 July 1978 Rockwell International instruction book COLLINS AN/PRC-515 RADIO SET Collins Telecommunications Products Division Electronic Systems Group Rockwell International Cedar Rapids, Iowa 52406 Printed in the United States of America...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Section Page INTRODUCTION DESCRIPTION Purpose Equipment Supplied Accessory Equipment Equipment Specifications Equipment Description 1.5.1 Receiver-Transmitter Group OR-5007/URC 1.5.2 Storage Battery BB-706/U 1.5.3 Radio Set Harness MT-5167/PRC-515 1.5.4 Antenna AS-5093/PRC-515 1.5.5 Handset H- 5017/GR 1.5.6 Headset- Microphone H-5016/PRC-515 1.5.7 Electrical Power Cable Assembly CX-5229/PRC-515 1.5.8...
  • Page 4 TABLE OF CONTENTS (Cont) Section Page 1.7.4.2.2.3 Mixer A1A2 1-25 1.7.9.2.2.4 Broadband Amplifier AlA3 1-26 1.7.9.2.2.5 Frequency Synthesizer A1A6 1-26 Frequency Standard A1A6A1A1 1-29 Fixed Frequency Divider A1A6A1A2 1-29 Lf Phase-Lock Loop AlA6A1A3 1-30 Frequency Converter AlA6A1A4 1-30 HF Phase-Lock Loop A1A6A2A3, Variable Frequency Divider A1A6A2A2, and Voltage Regulator A1A6A2A1 1-31...
  • Page 5 TABLE OF CONTENTS (Cont) Section Page MAINTENANCE General Second-Line Maintenance 2.2.1 Preventive Maintenance 2.2.2 Inspection 2.2.3 Cleaning 2.2.4 Test Equipment Requirements 2.2.5 Receiver-Transmitter Group Minimum Performance Test 2.2.6 Receiver Transmitter Al Testing/Troubleshooting 2-25 2.2.6.1 Test Equipment Required 2-25 2.2.6.2 Testing/Troubleshooting 2-25 2.2.7 Amplifier-Coupler A3, Testing/Troubleshooting...
  • Page 6 TABLE OF CONTENTS (Cont) Section Page 2.4.2.2 Power Amplifier A3A1 Disassembly 2-234 2.4.2.2.1 Bias/Control A3A4A2 Removal 2-234 2.4.2.2.2 Rf Subassembly A3A4A1 Removal 2-234 2.4.2.3 Amplifier Coupler Cover Removal 2-234 2.4.2.3.1 Removal for Access to Electromechanical Subassemblies 2-234 2.4.2.3.2 Removal for Access to Circuit Boards 2-234 2.4.2.4 Bandswitch A3A5 Removal...

  • Page 7: Parts List

    TABLE OF CONTENTS (Cont) Section Page 2.6.2.1.9 Autotransformer A3A9 Replacement 2-245 2.6.2.1.10 Bandswitch A3A5 Replacement 2-245 2.6.2.1.11 Amplifier Coupler Cover Replacement 2-246 2.6.3 Reassembly of Major Units 2-246 2.6.3.1 Control A2 Replacement 2-246 2.6.3.2 Receiver-Transmitter Al /Amplifier-Coupler A3 Reconnection 2-246 Generator Reassembly 2-246 2.7.1...
  • Page 8 MISSING PAGE...
  • Page 9 MISSING PAGE...
  • Page 10 LIST OF ILUSTRATIONS (Continued) Figure Title Page 3-17 Chassis Part of A1A1 3-100 3-18 Amplifier Coupler AM 5280/URC A3 (3 Sheets) 3-103 3-19 Control Logic A3A2 (2 Sheets) 3-110 3-20 Servo Amplifier A3A1 (4 Sheets) 3-117 3-21 Bias/Control A3A4A2 3-127 3-22 Rf Circuit Card, Part of A3A4A1 3-129...

  • Page 11: List Of Ilustrations

    LIST OF ILUSTRATIONS Figure Title Page 4-21 Discriminator A3A6, Schematic Diagram 4-51 4-22 Tuning Capacitor A3A7, Schematic Diagram 4-53 4-23 Tuning Coil A3A8, Schematic Diagram 4-55 4-24 Autotransformer A3A9, Schematic Diagram 4-57 4-25 Handset H-5017 /PRC-515, Schematic Diagram 4-59 4-26 Headset-Microphone H-5046/PRC-515, Schematic Diagram 4-61 4-27...

  • Page 12: List Of Tables

    LIST OF TABLES Table Page Equipment Supplied Accessory Equipment Frequency Bands 1-48 Receiver-Transmitter Group Second-Line Replaceable Items Receiver-Transmitter Group Second-Line Maintenance Test Equipment Required Generator, Second-Line Maintenance Test Equipment Required Receiver-Transmitter Group Minimum Performance Test Receiver-Transmitter Al, Testing/Troubleshooting 2-26 Amplifier-Coupler A3 Testing/Troubleshooting 2-48 Generator Second-Line Replaceable Items 2-62...
  • Page 13 INTRODUCTION This manual contains second and third line maintenance instructions for Radio Set AN/PRC515, It includes a description of the equipment, maintenance procedures, illustrated parts list, and schematics. Throughout the manual, common names are used for nomenclatured items of Radio Set AN/PRC-515 and several nomenclatured accessory items.

  • Page 15: Description

    SECTION 1 DESCRIPTION 1.1 PURPOSE Radio Set AN/PRC-515 (figure 1-1) is a backpack, single-sideband, high-frequency receiver-transmitter that provides tactical voice and CW communications in the 2, 0000- to 29. 9999- MHz frequency range with a channel spacing of 100 Hz. 1.2 EQUIPMENT SUPPLIED Equipment supplied as part of Radio Set AN/PRC-515, is shown in figure 1-2, and is listed in table 1- 1.3 ACCESSORY EQUIPMENT...
  • Page 16 RECEIVER-TRANSMITTER CONTROL C-5310/URC RADIO RECEIVER- TRANSMITTER RT-5047/URC AMPLIFIER-COUPLER AM-5280/URC RADIO SET HARNESS MT-5167/PRC-515 STORAGE BATTERY BB-706/U ANTENNA AS 5093/PRC-515 HEADSET-MICROPHONE H-5016/PRC-515 HANDSET H-5017/GR ELECTRICAL POWER CABLE ASSEMBLY CX-5229 /PRC-515 /PA-0797417 Figure 1-2. Equipment Supplied...
  • Page 17 BATTERY CHARGER PP-5267/U DIRECT CURRENT GENERATOR G-5002/PRC-515 TELEGRAPH KEY KY-5033/PRC-515 ANTENNA AS-5094/PRC-515 ANTENNA / COUNTERPOISE AS 5095/PRC-515 TPA-0298417 Figure 1-3: Accessory Equipment...
  • Page 18 COLLINS NOMENCLATURE: PART NUMBER Radio Receiver-Transmitter RT-5047/URC 622-2148-002 Receiver-Transmitter Control C-5310/URC 622-2553-003 Amplifier-Coupler AM-5280/URC 622-2149-001 Storage Battery BB-706/U 629-5703-001 Radio Set Harness MT-5167/PRC-515 629-3425-002 Antenna AS-5093/PRC-515 629-5702-001 Handset H-5017/GR 637-1952-001 Headset-Microphone H-5016/PRC-515 635-5148-001 Electrical Power Cable Assembly CX-5229/PRC-515 629-3428-001 These items make up Receiver-Transmitter Group OR-5007/URC (Collins part number 622-1407-002).

  • Page 19: Equipment Specifications

    EQUIPMENT SPECIFICATIONS Frequency range 2 to 29.9999 MHz in 0.1-kHz increments Modes Upper sideband (USB), amplitude modulation Equivalent (AM), and continuous wave (CW). Power output 20 watts (high power) or 2 watts (low power) nomi- nal peak envelope or average power into 50 ohms with 1.3:1 vswr.

  • Page 20: Equipment Description

    1.5 EQUIPMENT DESCRIPTION 1.5.1 Receiver-Transmitter Group OR-5007/URC Receiver-Transmitter Group OR-5007/URC is a compact lightweight receiver-transmitter consisting of three units: Radio Receiver-Transmitter RT-5047/URC, Receiver-Transmitter Control C-5310/URC, and Amplifier-coupler AM-5280/URC. When mechanically latched together, these units are electrically connected through mating connectors. All operating controls are located under a hinged cover on the control.

  • Page 21: Telegraph Key Ky-5033/Prc-515

    Charging rates arc indicated by lamps; green for normal operation and red for high charging rate. 1.5.10 Telegraph Key KY-5033/PRC-515 Teleegraph Key KY-5033/141C-515 is adjustable in tension and gap and connects to the control by means of a 0. 9-metre (3-foot) flexible cord and connector. The telegraph key can be attached to the operator's thigh with a strap.

  • Page 22: Antenna Options

    1.6.5 Antenna Options In dry or rocky terrain of low electrical conductivity, the antenna counterpoise provides a ground plane for the whip antenna. The four braided wires of the antenna counterpoise are laid out on the ground, and the feedline connector is plugged into the coaxial BNC connector on the amplifier-coupler. For extended communications ranges, the whip antenna is replaced with the dipole antenna.
  • Page 23 Figure 1-4. Radio Set AN/PRC-515, Block Diagram...
  • Page 24 Figure 1-5. Receiver-Transmitter Group or OR-5007/URC, Block Diagram On CW operation, the CW key line is filtered in the control and applied to if/af amplifier A1A5 in the radio receiver-transmitter. A CW keying circuit in A1A5 applies a keyed 2-kHz signal to the input of the balanced modulator.

  • Page 25: Tuning Functional Theory

    The output of mixer A1A2 is amplified to approximately 250 mW by broadband amplifier A1A3 and applied to power amplifier A3A4. Power amplifier A3A4 amplifies the output to 2 watts or 20 watts depending upon the setting of the POWER/PUISSANCE switch on the control. The output of power amplifier A3A 1 is fed through bandswitch A3A5, discriminator A3A6, capacitor A3A7, tuning coil A3A8, and autotransformer A3A9 to the antenna.

  • Page 26: Radio Receiver-Transmitter Al, Rt-5047/Urc

    network connected to each of the signal lines. The control provides OFF control for the receiver- transmitter group through mechanical linkage of a switch contact to the wiper shrift of potentiometer A2R1. When A2R1 is rotated to the maximum counterclockwise (cow) position, detent occurs (switch contact opens) and the +25.2-V dc (SW) voltage is removed from A2P1-36 and -49.

  • Page 28: Mixer A1A2

    Figure 1-7. Broadband Amplifier (Receive or Transmit), Simplified Schematic Diagram 1.7.4.2.1.2 Mixer AlA2 Refer to figure 1-8 of this section and figures 4-1 and 4-2 of the schematic section. The receive rf (AM or USB) is routed by chassis wiring from broadband amplifier A1A3 to A1A1J2/A1A2P1-14. The control inputs supplied to AlA2 are XMT and RCV logic, and the AGC/ALC DRIVE from A1A5.

  • Page 29: If/Af A1A5A1

    Figure 1-8. Mixer (Receive or Transmit), Simplified Schematic Diagram When the receive rf input signals are below AGC threshold, the electron flow is through inductors L3 and L16, bypassing diodes CR1 and CR7. As the rf input signal increases, the AGC/ALC DRIVE voltage at P1-9 decreases, permitting conduction by diodes CR1 and CR7.

  • Page 30: Usb Receive

    Figure 1-9. If/Af (A1A5A1) Receive, Functional Block Diagram proportionate to the received signal level. The dc voltage output of transistor Q6 is also supplied to A1A2 from P1-13 (AGC DRIVE). The presence of RCV•AM logic at the control element of switch U3B switches the AM receive audio to the output element or the switch.

  • Page 31: Transmitter Theory

    operation. The if output of transistor Q24 is sent to AGC/AM audio detector, transistor Q25. Also, the if signal at the emitter of Q24 is coupled to transistor Q28 of the SSB detector, which is comprised of transistors Q26, Q27, and Q28. The SSB detector is switched on during USB mode by RCW•AM logic (P2-12) which is applied to the base of transistor Q27.
  • Page 32 Figure 1-10. Logic / Tx A1A5A2, Logic Tables 1-19...
  • Page 33 Figure 1-11. If/Af A1A5A1 (Transmit), Simplified Schematic Diagram The if output from FL2 is amplified by transistor Q3 and coupled to P1-2 (IF OUT). If AM is selected at control A2, carrier reinsert gate, transistor Q4 and diode CR1, are gated on by logic from P2-27. This allows the 5-MHz carrier to be added to the SSB output of if amplifier Q3, producing an AM equivalent (AM) signal to P1-2.

  • Page 36: Mixer A1A2

    ALC. Refer to figure 1-14 of this section and figure 4-5 of the schematic section. During transmit operation, the ALC stages of A1A5A1 are enabled by XMT logic from P2-32 to switch transistor Q11. When transmitting, negative ALC voltage from amplifier-coupler A3 is applied from P1-31 to the emitter of transistor Q17.

  • Page 37: Broadband Amplifier Ala3

    the gate-to-drain capacity of FET's Q5 and Q6. The if output of the down conversion mixer is coupled through low-pass filter inductors L1 and L2 and capacitors C1 and C2, to P1-14 (XMT RF) by transformer T3, diode CR4, and capacitor C4. If the if output is too high (as noted in ALC discussion), the ALC / AGC DRIVE at P1-9 decreases, permitting diodes CR1 and CR7 to conduct, reducing the rf output.
  • Page 39 change at the control causes the bcd logic change to switch on the variable divider. This initiates the loop action necessary to achieve digital phase lock on the new frequency by the frequency/phase discriminator and inhibit the transmit (XMT INH) functions during frequency acquisition (rechannel cycle). When digital phase-lock occurs, vco control is transferred back to the sample and hold phase detector and the variable divider is switched off.
  • Page 40 output. The 50-kHz output is divided by 2 by U4A to provide a 25-kHz frequency to the variable divider subassembly. The 20-kHz output is applied to divider U5B and divided by 10 to produce a 2-kHz output. This is coupled by capacitor C2 to P1-5. The 2-kHz output from divider U5B is also applied to 2:1 divider U4B and to 10:1 divider U5A, and converted to 100 Hz for application to LFPLL AlA6A1A3.
  • Page 41 (1.0-1.0999 MHz), representing the vco frequency, is developed in the following manner. The 111.0-111.0999-MHz vco output is applied to buffer Q6 and coupled by C36 to gate G2 of mixer Q5. The 10-MHz input from the frequency standard is applied to amplifier-buffer Q3 and coupled by C26 to X11 multiplier Q4 which provides the 110-MHz input to gate G1 of mixer Q5.
  • Page 42 on this pin forward biases series control switch Q2 of A1A6A2A2 thereby enabling the logic 1 and +5 V dc function. These two functions are enabled as long as control transistor Q2 is held on by the 5 V dc CONTROL signal from A1A6A2A1. When a LOCK (LOCK=0) pulse occurs on connector pin A1A6A2A1P2-3, the 5 V dc CONTROL line is disabled and Q2 ceases conduction.
  • Page 43 The +14- and +11.5-volt dc outputs are distributed to the various frequency synthesizer subassemblies as shown on the voltage regulator schematic diagram, figure 4-11. 1.7.4.2.2.6 Power Supply A1A4 Refer to figure 1-16 and 1-33 of this section and figure 4-4, schematics section. Power supply A1A4 provides regulated +13 volts and +5.2 volts dc outputs from a +25.2-volt dc source (battery).

  • Page 44: Amplifier-Coupler A3, Am-5280/Urc

    The +5.2-volt dc regulator network is comprised of series switch 'Q8, controlcircuits Q9 and Q10, comparator Q11 and Q12, and reference voltage regulator VR4. Th.soperation of the +6.2 V dc regulator is similar to the operation of the +13 V dc regulator.. Transistors Q13 and Q14 provide overcurrent protection for the regulator.
  • Page 45 Figure 1-17. Amplifier-Coupler A3, AM-5280/URC, Block Diagram 1-35...

  • Page 46: Bandswitch A3A5

    Power amplifier ALC (automatic level control) is derived by sampling the rf drive supplied to discriminator A3A6. The resulting dc signal from the alc detector on the discriminator is fed to an op-amp on servo amplifier A3A1. The op-amp produces 0 VDC when the output of the rf amplifier is 1/2 dB or less below 20 watts and approximately -8 V dc with an rf output +1/2 dB above 20 watts.

  • Page 47: A3A6A2

    Figure 1-18. Loading Discriminator, Part of A3A6A1 and A3A6A2, Simplified Schematic Diagram When the impedance of the rf circuit is 50 ohms, there is no error signal developed. When the rf circuit impedance is greater than 50 ohms, the error signal is positive. When the rf circuit impedance is less than 50 ohms, the error signal is negative.
  • Page 48 a negative error signal output. When the rf circuit impedance is greater than 50 ohm, the inverse is true, and a positive error signal is developed. Phasing Discriminator, A3A6A3 and par of A3A6A1. Refer to figure 1-19. The phasing discriminator in amplifier-coupler A3 develops a dc error signal that is proportional to the phase shift between the rf voltage and the rf current.
  • Page 49 When the antenna is resistive, line current iL, and line voltage eL are in phase. The magnitude of the resultant voltage across circuit number 1 (e4) is equal to the magnitude of the resultant voltage across circuit number 2 (e5), therefore, the error signal is zero (vector diagram (1) of figure 1-19). When the antenna is capacitive, the vector addition of induced voltage e2 and sampled voltage e6 causes resultant voltage e4 to increase in magnitude.
  • Page 50 The secondary of transformer T2 is loaded with a low value of resistance, R7, to result in a secondary voltage (e ) 180 out of phase with primary current. The line voltage is sampled by the voltage divider C15 and C1 and appears at the junction of CR2 and L2. The sampled portion of the °...

  • Page 51: Rf Tuning Network

    The secondary of transformer T1 is loaded with a low value resistor, R8, to result in a secondary voltage (e2) in phase with the line current iL. The line voltage is sampled, with no phase shift, by voltage divider C14 and C6. C14 is factory adjusted to create a sampled voltage (at junction of CR4 and R3) equal to the induced voltage on T1 when the vswr is 1.0 to 1;...
  • Page 52 Figure 1-22. Rf Tuning Network, Simplified Schematic Diagram Figure 1-23 shows how L1, C1, and capacitance (A3A9C1 through C5 aid C7) are used to tune the antenna at one example frequency. Figure 1-24 shows the tuning procedure using the 8-foot whip antenna below 8.0 MHz.
  • Page 53 Figure 1-23. Tuning Procedure when C2 is required 1-43...
  • Page 54 Figure 1-24. Tuning Procedure when T1 is used 1-44...
  • Page 55 Figure 1-25. Whip Antenna Reactance Variation reduction 1-45...

  • Page 56: Control Logic A3A2

    S1A is mechanically connected to B1. S1A may rotate until the contact going to CR4 becomes open at maximum capacitance. When the contact opens, the voltage to B1 is removed and B1 stops. Switch S1B rotates while B1 is running. A ground established through S1B from A3A7P1-2, applies a gound at A3A7P1-5 to tell control logic A3A2 when C1 is maximum.
  • Page 57 Figure 1-26. Frequency Band Logic, Simplified Schematic Diagram 1-47...

  • Page 58: Tune Logic

    CONN FREQ FREQ BAND RANGE 2.0 to 2.39 MHz P2-13 2.4 to 2.9 MHz P2-9 3.0 to 3.9 MHz P2-10 4.0 to 5.9 MHz P2-25 6.0 to 7.9 MHz P2-11 8.0 to 11.9 MHz P2-28 12.0 to 15.9 MHz P2-26 16.0 to 23.9 MHz P2-20 24.0 to 29.9 MHz...
  • Page 59 Figure 1-27. Tuning Sequence Flow Diagram 1-49...

  • Page 60: Bandswitch Step

    present, transistor switch Q2 applies a ground to A3A2P1-11. This ground actuates keyline relays in power amplifier A3A4 to pass the rf to bandswitch A3A5. In tune, the following signals are used to control the tune cycle: Servo amplifier enable enables servos and allows elements Cl and L1 to tune Tune-in-progress (TIP) signal places power amplifier in a tune mode...
  • Page 62 U21B is fed back to U21C to reset the bandswitch flip-flop. In standby the radio may receive but transmission is inhibited. The tuning elements are still in their previously tuned positions unless the radio is in the RCV only mode. In the RCV only mode the tuning coil and capacitor are homed to maximum, however, the RCV only mode is used only during testing with Radio Test Set AN/PRM-501.
  • Page 63 Figure 1-29. C1 Max Forcing Logic, Simplified Schematic Diagram Figure 1-30. L1 Max Forcing Logic, Simplified Schematic Diagrams Refer to figure 1-31. When the following logic conditions are appropriately set, L1 Min forcing logic is applied to the servo amplifier forcing L1 toward minimum position: frequency below 12 MHz (12 to 29.9 MHz), L1 Position, L1 Max, C1 Max and (operate or tune).
  • Page 64 Figure 1-31. L1 Min Forcing Logic, Simplified Schematic Diagram Positive phasing sense logic from servo amplifier A3A1 applies a logic 1 to U10B. The logic 0 output of U10B is inverted by U13D (L1 Min Force) and U19A (L1 Max Force) and resets the L1 forcing flip-flops, disabling the forcing logic and allowing the servos to control the tuning.

  • Page 65: Servo Amplifier A3A1

    1.7.4.3.1.6 Servo Amplifier A3A1 Refer to figure 4-17, schematics section. The servo amplifier is a dc amplifier capable of operation from a battery supply voltage of 22 to 30 V dc. The servo amplifier receives loading and phasing error voltages, forward and reflected power logic from discriminator A3A6 and forcing logic from logic control A3A2.
  • Page 66 Figure 1-32. Forward Power to Vswr Comparison and Servo Enable, Simplified Schematic Diagram ALC and Sidetone. In the tune mode (tune step 3) the detected ALC voltage from the discriminator controls the ALC output voltage from U5B. The cathodes of CR3 and CR1 are grounded by TIP. This disables the bias supplied through R37 and enables Q17.

  • Page 67: Receive Theory

    1.7.4.3.2 Receive Theory The following paragraphs contain a description of the rf signal path from the antenna to radio receiver- transmitter Al. For more detail on any particular module, card, or subassembly refer to the description of the transmit path, paragraph 1.7.4.3.1. When using a dipole antenna, the received rf is coupled through autotransformer A3A9 wafer switch section S1C, and through its associated capacitive network to the antenna switch.
  • Page 68 Figure 1-33. Receiver – Transmitter Group OR-5007/URC, DC Power Distribution Diagram 1-59...
  • Page 69 The +25-volt voltage is distributed to A3A1, A3A2 and A3A5, and is connected to the O section of A2R1 through connectors A3J1/A1A1P1-24, -30 and A1A1J1/A2P1-24, 30. When the receiver-transmitter group is turned on at the control, the +25.2 volts dc becomes +25.2 V DC (SW) which is applied to A2P1/A1A1JI/-36, -49 for distribution (figure 1-33).
  • Page 70 Missing Section II...
  • Page 71 Missing Section II...
  • Page 72 Missing Section III...
  • Page 73 Missing Section III...
  • Page 74 SECTION IV SCHEMATICS 4.1 GENERAL Schematic diagrams are included for Receiver-Transmitter Group OR-5007/URC, Handset H-5017/PRC- 515, Handset-Microphone H-5016/PRC-515, Electrical Power Cable Assembly CX-5229/PRC-515, and Direct Current Generator G-5002/PRC-515. The schematic diagram titles and figure numbers are: FIGURE TITLE Chassis A1A1, Schematic Diagram Mixer A1A2, Schematic Diagram Broadband Amplifier A1A3, Schematic Diagram Power Supply A1A4, Schematic Diagram...

  • Page 75: Direct Current Generator G-5002/Prc-515

    FIGURE TITLE 4-20 Bandswitch A3A5, Schematic Diagram 4-21 Discriminator A3A6, Schematic Diagram 4-22 Tuning Capacitor A3A7, Schematic Diagram 4-23 Tuning Coil A3A8, Schematic Diagram 4-24 Autotransformer A3A9, Schematic Diagram 4-25 Handset H-5017/PRC-515, Schematic Diagram 4-26 Headset-Microphone H-5016/PRC-515, Schematic Diagram 4-27 Electrical Power Cable Assembly CX-5229/PRC-5I5, Schematic Diagram 4-28 Direct Current Generator G-5002/PRC-515, Schematic Diagram...

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