Rockwell HF-380 Service and user manual

Page 1

Collins instruction book

HF-380 Transceiver

This instruction book includes:		AC-3805 and AC-3805A Keypads	523-0772588
Description	523-0772523	AC-3809 Interface Adapter	523-0772589
Installation	523-0772524	AC-3810, AC-3811, AC-3812,	523-0770573
Operation	523-0772525	AC-3813, and AC-3814
Theory	523-0772526	Filters
Maintenance	523-0772527	AC-3821, AC-3822, and	523-0772590
Parts List	523-0772528	AC-3823 Transceiver-to-
Diagrams	523-0772529	Coupler RF Cable
Power Amplifier	523-0771739	AC-2801 Rack Mount	523-0769622
Low-Pass Filter	523-0772530	AC-2808 Blower	523-0769661
Receiver-Exciter	523-0771741	AC-2810 and AC-2811	523-0769651
Passband Tuning and	523-0771742	Vertical Antenna
Passband Tuning Option		AC-2812 and AC-2813	523-0769632
Synthesizer	523-0771743	Dipole Antenna
Oscillator	523-0772531	AC-2814 and AC-2815	523-0769641
Control	523-0771745	Long-Wire Antenna
Noise Blanker	523-0771746	AC-2818 Lightning Arrester	523-0769646
Speech Processor	523-0771747	AC-2819 Grounding	523-0769645
Control Interface	523-0771748	AC-2820 Ground Radial	523-0769639
Audio Low-Pass Filter	523-0771761	AC-2821 DC Power Cable	523-0769643
Options		AC-2828 Foot Switch	523-0770747
AC-3801 Noise Blanker	523-0770570	AC-2832 Transceiver-to-	523-0772591
AC-3802 Speech Processor	523-0770571	Coupler Control Cable
AC-3803 Control Interface	523-0770572

Collins Telecommunications Products Division Defense Electronics Operations Rockwell International Cedar Rapids, Iowa 52498

Printed in the United States of America

Page 2

The material in this manual is subject to change. Before attempting any maintenance operation on the equipment covered in this manual, verify that you have a complete and up-to-date publication applicable to your equipment.

Please be advised that completion of the enclosed Automatic Distribution Service Card and return to Rockwell International ensures you of manual revisions and service bulletin modifications to your equipment. Without the return of this card, Rockwell International bears no responsibility to forward this information to you.

We welcome your comments concerning this instruction book. Although every effort has been made to keep it free of errors, some may occur. When reporting a specific problem, please describe it briefly and include the instruction book part number, the paragraph or figure number, and the page number.

Send your comments to: Logistics

Collins Telecommunications Products Division Rockwell International Cedar Rapids, Iowa 52498

ATTN: Quality Control-Support Engineering 120-120

Page 3

introduction

DESIGN FEATURES

The HF-380 Transceiver is an all solid-state transceiver that transmits in SSB or CW from 1.6 to 29.999 99 MHz. The transceiver receives in SSB, CW, or AM modes with frequency coverage from 0.5 to 29.999 99 MHz. Transmit output power is 90 watts pep, minimum, with automatic protective turndown for high average power, excessive vswr, or overtemperature conditions.

The transceiver is designed for fixed-station use with 115/230-V, 50- to 60-Hz power. An accessory power cable is available to permit using a 12- to 15-V dc source for standby or emergency operation.

An associated CU-380 Antenna Coupler provides automatic antenna matching capability for the transceiver to allow operation using an 8-foot whip

(4 to 30 MHz), 16-foot whip (3 to 30 MHz), 32-foot (2 to 30 MHz), and 50- and 100-foot long wire (2 to 30 MHz) antennas.

SERVICE BULLETINS/SERVICE INFORMATION LETTERS

All HF-380 Transceiver service bulletins (SB) and service information letters (SIL) incorporated in this instruction book are listed below. Applicable service bulletins and/or service information letters released after printing, but prior to shipment, of the instruction book are inserted in the front of the instruction book.

Note

Service bulletins are numbered in sequence for the life of the equipment. Service information letters are numbered in sequence starting at 1 for each calendar year.

TPA-2174-017

HF-380 Transceiver

Page 4

introduction 523-0772522

SB/SIL	DESCRIPTION	ISSUE DATE	SB/SIL	DESCRIPTION	ISSUE DATE
SB 1	Allows either a low- or high-impe- dance mic to be used. Mic gain is increased by 18 dB. A greater range of adjustment for VOX is provided. Minimum VOX delay time is decreased to less than 50 ms to allow faster semibreak in CW oper-	8-1-80	SB 8 and Rev 1	Prevents the meter from pegging when AGC is switched on; reduces the popping noise during AGC attack; and changes the rf gain function to allow the AGC thresh- old to be preset. Modifies receiver- exciter A3 (638-6908-002).	12-22-80 Rev 1 10-1-82
	ation. Preemphasis to VOX pream- plification is added to improve SSB VOX operation. Line audio (600-Ω) output level is		SB 9 and Rev 1	Eliminates power amplifier oscilla- tions and adjusts circuit gain. Mod- ifies power amplifier/heat sink assembly A1 (634-8481-003) and power amplifier gianuit cord A1A1	1-2-81 Rev 1 10-1-82
	increased to ensure at least -10- dBm output. Changes are to			(638-6775-001).
	(638-6908-001).		SIL 1- 81	Describes method for providing a mute function for an external receiver	3-1-81
SB 2	Improves transmitter spectral	8-1-80
	purity when operating on a fre- quency ending in 257 kHz (ie, 14 257 kHz). This modification to synthe-		SIL 2- 81	Describes a method of connecting S-line 312B-4 and 312B-5 phone patches to the transceiver.	8-1-81
	sizer A5A1 (638-6916-001, -002) ensures that transmitter spurious output will be within the -50-dB specification limit.		SB 10	Replaces a ROM on control A8 to provide eleven new frequency memories. These memories are addressed with the AC-3803 Con-	10-1-82
SB 3	Eliminates potential frequency war- ble that may occur at certain fre- quencies. Modifies synthesizer variable reference frequency loop A5A2 (638-6920-001) to increase rf input levels to compensate for inte- grated circuits at the low end of their specified parameters.	8-19-80		frequency change of more than 10 kHz or a frequency change made by the key pad will generate a strobe pulse which is detected by the CU-380 Antenna Coupler. The antenna coupler will then tune upon receipt of a key pulse.
			SB 11	Improves audio response of the	3-15-82
SB 4	Eliminates possible tuning dial drive drag when turned in a clock- wise direction or when initially turned on. Replaces optical encoder	8-15-80		receiver by adding an electronic low-pass filter A15 with a 3-kHz cut-off point to reduce high fre- quency noise.
	(229-9702-010).		SB 12	Increases rise and decay time of	10-1-82
SB 5	Eliminates possible resistance tapers on the audio and rf gain (AF RF GAIN) potentiometer. Replaces AF RF GAIN potentiometer R5	9-1-80		CW envelope from 1 ms to 4 ms to eliminate any key clicks that might be generated in straight on-off switching.
	(376-0276-050).		SB 13	Improves the performance of the sutomatic gain control (AGC) by	10-1-82
SB 6	Corrects a transmit hum caused by a ground loop between the front panel and the receiver-exciter cir- cuit card ground plane. Replaces mic jack J2 with a jack that has insulated sleeve contact.	12-15-80		changing AGC time constants. The attack time is lengthened to a nom- inal 12 ms, the fast release time is reduced to a nominal 400 ms, and the slow release hang time is made longer but the discharge time after
SB 7 and Rev 1	Prevents excessive emi (rcvr birdies) and eliminates electronic tuning backlash. Modifies control card A8 (638-6929-001-002) and syn- thesizer compartment.	12-22-80 Rev 8-1-81	SB 14	hand is shortened. Extends the frequency range of the mic preamplifier to ensure proper audio frequency response in trans- mit.	10-1-82

Page 5

SB/SIL DESCRIPTION ISSUE DATE SB 15 The addition of a choke on the directional coupler circuit card 10-1-82

A2A2 provides an antenna static discharge path which reduces the possible loss of directional coupler diodes in the field SB 16 Reduces the synthesizer 500-Hz 10-1-82 sidebands to prevent frequency warble at certain frequencies. SB 17 This modification is necessary if 10-1-82 the transceiver is to be used with the CU-380 Antenna Coupler. This change enables proper operation of the tune function and creates a system key line.
SB 18 Eliminates the 2-ms rf power burst 10-1-82 which occurs when the transceiver is unkeyed. It also increases the delay time to a nominal 20 ms between keying and the transceiver and the start of rf output. This allows more time for an external linear amplifier tr relay to switch into transmit before rf is present.

Page 6

HF-380 Transceiver

Printed in USA

Collins Telecommunications Products Division 523-0772523-001218

description

1 August 1982

Paragraph Page 1. General 1 2. Equipment Supplied 1 3. Associated Equipment 4 4. Accessories 4 5. Options 7 6. Equipment Specifications 8

523-0772523-001218

Page 7

description

1. GENERAL

The HF-380 Transceiver, 622-3580-001, is a fully synthesized, all solid-state transceiver that transmits in SSB or CW from 1.6 to 29.999 99 MHz and receives in SSB, CW or AM modes from 0.5 to 29.999 99 MHz. A phase-locked loop synthesizer tunes in 10-Hz increments either manually or with optional remote keypad control. Split vfo function is standard, as is the digital frequency display driven directly by a microprocessor. A complete line of operating accessories and options are available for use with the transceiver.

Warning

This transceiver, when transmitting into an antenna either directly or through an associated linear power amplifier and/or an antenna coupler, may produce an electromagnetic field near the antenna that is in excess of the Occupational Safety and Health Administration (OSHA) maximum recommended limits.

An optional control interface (AC-3803, 641-7150-001) permits the use of a customer-supplied remote

keypad for controlling the transceiver frequency. An optional speech processor (AC-3802, 642-2438-001) and noise blanker (AC-3801, 641-7105-001) are also available. The speech processor increases the average power level output in voice transmission. The noise blanker quiets the audio output when a noise pulse, such as from automobile ignitions, is received. A complete line of operating accessories is available for use with the transceiver.

Touchup paint is available in 12-oz aerosol spray cans as part number 005-8360-090 for the front-panel earth gray color and 005-8360-100 for the dust cover earth brown color. One-ounce bottles are available as 005-8379-010 for earth gray and 005-8379-020 for earth brown.

For Distributor/Service Agencies, a Spare Modules Kit, part number 642-9630-001, and Spare Parts Kit, part number 642-9629-001, are available to facilitate repair of the KWM-380.

2. EQUIPMENT SUPPLIED

Equipment supplied as part of the transceiver is listed in table 1. Refer to figure 1 for subassembly/ circuit card location.

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description 523-0772523

Figure 1

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Table 1. Equipment Supplied Configuration.

CIRCUIT CARD/SUBASSEMBLY		DESCRIPTION/FUNCTION
TITLE	COLLINS PART NUMBER
Power amplifier A1	634-8481-003	Wideband amplifier that produces 90 watts pep minimum output
Receiver-exciter A3	638-6908-002	The exciter provides 100-milliwatt rf power to power ampli- fier, and the receiver is a double-conversion superheterodyne type.
Chassis A9	641-7103-001	Provides mounting for circuit cards.
Power supply con- trol A9A1	638-6825-001	Contains the +5, +9- and +14-V dc regulators.
+24-V regulator A9A2	638-6275-002	Generates +24 V dc from a +14-V dc input.
Front Panel A10	641-7104-001	All controls for normal operation are located on the front panel of the transceiver.
Display A10A1	638-6931-001	Decodes the frequency data and displays the data on 7-segment displays.
Synthesizer A5	641-7099-002, -003	Develops variable frequencies for injection into receiver- exciter.
Oscillator A7	638-6918-001	Develops 39.6-MHz, 455-kHz, and 454.2-kHz signals for synthesizer and receiver-exciter circuits.
Control A8	638-6929-003, -004, -006	Microprocessor control to develop control signals for trans- ceiver operation.
Passband tuning A4	638-6912-002, -003	Adjusts positions of the received if signal within the pass- band of the selected bandwidth filter.
Passband tuning option A13	638-6914-002	Provides mounts and interface for optional filters.
Low-pass filter A2	641-7132-001	Relay selectable low-pass filters to cover frequencies in amateur radio service bands.
Audio low-pass filter A15	646-5802-001	Electronic audio low-pass filter to reduce high frequency noise.

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3. ASSOCIATED EQUIPMENT

Equipment required to operate the transceiver is listed in table 2. Detailed information on the CU-380

Antenna Coupler is contained in the CU-380 Antenna Coupler instruction book. Detailed information on the optional kits is contained in the kits section of this instruction book.

Table	2.	Associated	Equipment.

EQUIPMENT	ТҮРЕ	FUNCTION	CHARACTERISTICS
Antenna	Various 100-watt capa- bility	Transmits or transmits/ receives	Less than 3:1 vswr
Antenna coupler	CU-380 or equivalent	Automatically matches antenna to pa output	Provides 50-ohms input impedance with 2:1 vswr maximum when tuned
Microphone	Collins SM-280 or equivalent	Keys and modulates transmitter	Low-impedance dynamic cardioid
CW key	Collins AC-2827 or equivalent	Keys transmitter for CW operation	Hand-operated CW key

4. ACCESSORIES

Accessories available for the transceiver are listed in table 3.

Page 11

Table 3. Accessories.

	• ·		·
EQUIPMENT	PART NUMBER	FUNCTION	CHARACTERISTICS
AC-3801 Noise Blanker A11	641-7105-001 (kit) and 641-7146-001 (assembly)	Quiets audio output when a noise pulse, such as from automobile ignitions, is rcceived	Refer to options section.
AC-3802 Speech Pro- cessor A12	642–2438–001 (kit) and 638–6933–001 (circuit card)	Increases the average power level output (talk- power) in SSB transmission	Refer to options section.
AC-3803 Control Interface A14	641-7150-001 (kit) and 638-6910-001 (circuit card)	Allows use of external key- pad for frequency control	Refer to options section.
AC-3805 or AC-3805A Keypad	651-7412-001 651-7412-002	Facilitates the selection, storage and recall of up to 11 transceiver operating frequencies	Refer to options section.
AC-3809 Interface Adapater	651-7700-001	Allows use of external key- pad for frequency control	Refer to options section.
AC-3810 360-Hz CW Filter	642-2439-001	Provides 360-Hz bandwidth for receiver	Refer to options section.
AC-3811 140-Hz CW Filter	642-2440-001	Provides 140-Hz bandwidth for receiver	Refer to options section.
AC-3812 1.7-kHz Narrow Sideband Filter	642-2441-001	Provides 1.7-kHz bandwidth for receiver	Refer to options section.
AC-3813 6.0-kHz AM Filter	642-2442-001	Provides 6.0-kHz bandwidth for receiver	Refer to options section.
AC-3814 3.0-kHz Wide SB/Data Filter	651-7410-001	Provides 3.0-kHz bandwidth for receiver	Refer to options section.
AC-3821, AC-3822, or AC-3823 Transceiver-to- Coupler RF Cable	651-7768-XXX 651-7769-XXX 651-7700-XXX	Used as interconnect between transceiver antenna coupler	Refer to options section.
AC-2801 Rack Mount	622-3537-001	Provides mounting capability for transceiver into standard 483-mm (19- in) rack	Refer to options section.
AC-2808 Blower	622-3547-001	Enables operation at con- tinuous 100-watt power output	Refer to options section.
AC-2810 or AC-2811 Vertical Antenna	622-3553-001 622-3554-001	Transmits or transmits/ receives	Refer to options section.
AC-2812 or AC-2813 Dipole Antenna	622-3555-001 622-3556-001	Used to construct resonant dipole antennas	Refer to options section.
AC-2814 or AC-2815 Long-Wire Antenna	622-3557-001 622-3558-001	Used to make long-wire antennas for use at fre- quencies from 1.6 to 30 MHz	Refer to options section.

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Table 3. Accessories (Cont).


EQUIPMENT	PART NUMBER	FUNCTION	CHARACTERISTICS
AC-2818 Lightning Arrester	622-3561-001	Discharges to ground high- voltage current surges on the inner conductor of attached coax cables	Refer to options section.
AC-2819 Grounding	622-3562-001	Used to make electrical ground to earth	Refer to options section.
AC-2820 Ground Radial	622-3563-001	Used to make electrical ground plane for use with a vertical antenna	Refer to options section.
AC-2821 DC Power Cable	622-3564-001	Enables transceiver emer- gency operation with 12-V battery	Refer to options section.
AC-2827 CW Key	634-8545-001	Keys transmitter for CW operation	Hand-operated CW key.
AC-2828 Foot Switch	634-8546-001	Keys transmitter	Refer to options section.
AC-2829 Standard Head- phones	622-3571-001	Monitors transmit audio	Standard headphones with 600-ohm impedance; has sound-blocking earmuffs
AC-2830 Headphones	622-3572-001	Monitors transmit audio	Lightweight headphones with 500-ohm impedance; has comfort-designed earpieces
AC-2832 Transceiver-to- Coupler Control Cable	651-7638-XXX	Cable for control signals from transceiver to antenna coupler	Refer to options section.
MM-280 Handheld Microphone	020-0260-010	Keys and modulates transmitter	Handheld dynamic omni- directional microphone with low impedance; has push-to-talk switch; color, black
MM-281 Handheld Microphone	020-0260-020	Keys and modulates transmitter	Handheld dynamic micro- phone with low impedance and noise-cancelling characteristics; has push-to-talk switch; color, black
SM-280 Desktop Microphone	020-0261-010	Keys and modulates transmitter	Desktop dynamic micro- phone with low impedance and cardioid sound pattern; has push-to-talk bar; color, black

Page 13

5. OPTIONS

Accessory kits (options) available for the transceiver are listed in table 4. Detailed information of the kits

is contained in the options section of this instruction book.

Table	4.	Kits.

КІТ	PART NUMBER
AC-3801 Noise Blanker	641-7105-001
AC-3802 Speech Processor	642-2438-001
AC-3803 Control Interface	641-7150-001
Key Pads
AC-3805	651-7412-001
AC-3805A	651-7412-002
AC-3809 Interface Adapter	651-7700-001
Filters
AC-3810	642-2439-001
AC-3811	642-2440-001
AC-3812	642-2441-001
AC-3813	642-2442-001
AC-3814	651-7610-001
Transceiver-to-Coupler RF Cable
AC-3821	651-7768-XXX
AC-3822	651-7769-XXX
AC-3823	651-7770-XXX
AC-2801 Rack Mount	622-3537-001
AC-2808 Blower	622-3547-001
Vertical Antenna
AC-2810	622-3553-001
AC-2811	622-3554-001
Dipole Antenna
AC-2812	622-3555-001
AC-2813	622-3556-001
Long-Wire Antenna
AC-2814	622-3557-001
AC-2815	622-3558-001
AC-2818 Lightning Arrester	622-3561-001
AC-2819 Grounding	622-3562-001
AC-2820 Ground Radial	622-3563-001
AC-2821 DC Power Cable	622-3564-001
AC-2828 Foot Switch	634-8546-001
AC-2832 Transceiver-to-Coupler Control Cable	651-7638-XXX

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description 523-0772523

6. EQUIPMENT SPECIFICATIONS

Table 5 lists electrical, environmental, and physical specifications of the transceiver.

Table 5. Equipment Specifications.

CHARACTERISTIC	SPECIFICATION
Physical
Size	394 mm (15.5 in) wide; 190 mm (7.5 in) high, including 25 mm (1 in) feet; 457 mm (18.0 in) deep
Weight	21.8 kg (48 lb), max
Environmental
Operating temperature	0 to 50 °C (32 to 122 °F)
Operating humidity	0 to 90% relative humidity
Operating altitude	0 to 3049 m (0 to 10 000 ft)
Vibration	2 g's, 10 to 33 Hz
Electrical
Primary power	Strappable for: 105, 115, 125/210, 220, 230, 240, 250 V ±5%, 50 to 60 Hz; or 12 to 15 V dc, negative ground: 120 watts max in receive, 600 watts max in transmit
Receiver
Frequency	0.5 to 29.999 99 MHz, tunable in 10-Hz steps
Modes	USB, LSB, AM, and CW
Sensitivity (using "soft" µV measurement)	0.5 μV or better for 10 dB (s+n)/n, 2.0 to 30.0 MHz, SSB and CW; 1.0 μV or better for 1.8 to 2.0 MHz
Selectivity (3-dB bandwidth)	Selectable:
	8 kHz 1.7 kHz 6 kHz 360 Hz 2.1 kHz 140 Hz
	*Optional filters
If and image rejection	Greater than 60 dB
Intermodulation distortion	~50 dB or better for two signals of -10 dB mW each, 20 kHz apart
AGC	Audio output variation not more than 8 dB for 4-µV to 200-mV open circuit rf input variation
Audio output	Not less than 3 W into 4-ohm load, at 1 kHz, at not more than 10% total harmonic distortion
	Line audio output not less than -10 dB mW nominal into 600 ohms
	Frequency response: 300 to 2400 Hz with not more than 5-dB variation

Page 15

Table 5. Equipment Specifications (Cont).

CHARACTERISTIC	SPECIFICATION
Transmitter
Frequency	1.6 to 29.999 99 MHz, tunable in 10-Hz steps
Modes	USB, LSB, and CW (RTTY by AFSK on LSB)
Output power	90 W pep, min (100 W, nominal)
	In CW or RTTY: 50% duty cycle; key down 15 minutes, max. Automatic turndown to 50 W after 10 seconds.
	With optional blower kit installed, power is 100 W average, 50% duty cycle, key down 1 hour max at 25 °C; 30 minutes max at 50 °C for all modes.
Unwanted signal suppression
Carrier	-50 dB or better
Undesired sideband, 1-kHz ref	-55 dB or better
Harmonics (all)	-40 dB or better
Mixer products	-50 dB or better
Third order distortion	25 dB below each tone of 2-tone test
Synthesizer accuracy and stability	Accuracy within +5 Hz after 10 minutes warmup when 39.6-MHz and 455-kHz oscillators are set to within ±3 Hz
	Stability within ±150 Hz over temperature range of 0 to 50 °C (32 to 122 °F) if oscillators set within 10 Hz at 25 °C (77 °F)
Antenna impedance	50 ohms, nonreactive. (Full transmitter power output with vswr of 2:1 or less. Automatic power output turndown with vswr greater than 2:1.)
Audio inputs
Microphone	Low or high impedance, dynamic; 3.3-kilohm nominal impedance
Line	600 ohm, unbalanced; 40-mV input sufficient for full rf power output









Antenna impedance Audio inputs Microphone Line	50 ohms, nonreactive. (Full transmitter power output with vswr of 2:1 or less. Automatic power output turndown with vswr greater than 2:1.) Low or high impedance, dynamic; 3.3-kilohm nominal impedance 600 ohm, unbalanced; 40-mV input sufficient for full rf power output

Page 16

HF-380 Transceiver

Printed in USA

Rockwell International

installation

Collins Telecommunications Products Division

Paragraph

1.	. General
2.	2. Unpacking
3.	Power Tro	ansformer Ins	tallation
4.	Preinstall	ation Check/1	Requirements
4.1 4.2 4.3 4.4 4.4 4.4 4.4 5.	4.1 Operating Location. 4.2 Antennas 4.3 Grounding . 4.4 Primary Power Requirements. 4.4.1 AC Voltage Operation . 4.4.2 DC Voltage Operation . 4.4.3 Transceiver Connectors Signal Parameters . 5. Installation Procedures.
6.	Postinsta	llation Proced	ures	ad O. In. bra

Page 17

installation

1. GENERAL

Because of the uniqueness of each individual radio installation, the installation information for the HF-380 Transceiver found here is limited in scope.

Warning

This transceiver, when transmitting into an antenna either directly or through an associated antenna coupler and/or power amplifier, may produce an electromagnetic field near the antenna that is in excess of the Occupational Safety and Health Administration (OSHA) maximum recommended limits.

2. UNPACKING

The transceiver may be shipped in two separate cartons, depending on the shipping carrier's requirements. One contains the power transformer, the other contains the transceiver. After carefully unpacking the cartons, check to be sure no shipping damage is evident. Should any damage be apparent, save the cartons and notify the delivery carrier immediately to file claim for damage.

3. POWER TRANSFORMER INSTALLATION

If the power transformer has been shipped separately, it can be quickly installed in five steps. A 9.53mm (3/8-in) open-end wrench, #12 (3/8-in) nutdriver, and a Phillips screwdriver are the only tools needed. Refer to figure 1.

a. Using the screwdriver, remove four screws from the bottom of the transceiver (near the rubber feet at each corner), set transceiver on its side with speaker up, and slide the dust cover off over the heat sink.
b. Remove the front one of the two Phillips-head screws securing the front panel braces to the sides of the chassis and tilt the panel forward.
c. Turn the transformer so terminals 1 through 8 face the front panel. With the nutdriver, remove the four hexposts and lockwashers from the chassis mounting studs in the right front corner of the chassis and set the transformer over the studs.
d. Using the wrench and nutdriver, secure the transformer to the studs with the four lockwashers and hexposts.
e. Electrically connect the transformer to the transceiver with the two attached polarized connectors. Reattach the front panel, then replace the dust cover. Be careful when replacing the dust cover to avoid pinching or dislodging cables.

Power Transformer Installation Figure 1

Page 18

4. PREINSTALLATION CHECK/REQUIRE-MENTS

4.1 Operating Location

The normal operating location should be chosen so the transceiver is away from heat vents and normal airflow around it is unobstructed. Do not lay objects on top or against the sides. It is especially important that the heat sink have a free flow of air about it. An automatic turndown circuit will reduce the rf output power if the heat sink overheats. This is for selfprotection of the power amplifier output stages.

The AC-2808 Blower Kit is available for attaching to the heat sink. This blower supplies cooling air to permit normal operation in close quarters or high-duty cycle operation.

4.2 Antennas

The antenna is one of the most important parts in the performance of any radio communications system. System performance is directly related to the efficiency of the antenna. Because each individual installation has unique characteristics, various types of antennas, their characteristics, and installation information cannot be covered in this manual. A number of excellent reference works on antennas are available.

The transceiver is designed to operate into a nonreactive rf load of 50 ohms. Impedance mismatches producing vswr's lower than 2:1 are acceptable. For vswr's 2:1 or greater, the transceiver power amplifier output is automatically reduced in proportion to the reflected power.

The associated CU-380 Antenna Coupler provides the capability for the transceiver to operate with antennas that present impedance mismatches of greater than 2:1 vswr over all frequencies.

4.3 Grounding

The importance of a good ground system cannot be overemphasized. All units of the system should have ground interconnections through heavy wire (#12 AWG or larger) or ground strap (6-mm (1/4-in) wide or larger) between ground lugs. Use as short a length of ground wire or braid as practical between units or external ground.

4.4 Primary Power Requirements

The transceiver will operate from 50- to 60-Hz ac voltages and 12 to 15 volts dc for back-up emergency power.

4.4.1 AC Voltage Operation

The transceiver will operate from various 50- to 60-Hz voltages, depending on internal strapping connections. As shipped from the factory, the transceiver is strapped for 115-V operation.

Determine the average ac voltage at the primary power outlet where the transceiver is to be used. If the primary power is other than 115 V ac, remove the chassis dust cover and locate the protective cover plate near the left rear corner as viewed with chassis upside down.

Warning

Do not attempt to change voltage strapping while primary power is applied. Electrical shock will occur. Disconnect the primary power cable from the power source or the transceiver first.

Remove the cover plate and refer to table 1 to make the connections indicated for the voltage nearest the primary power output voltage. If the outlet voltage is approximately halfway between two voltages listed, strap terminal board TB1 for the lower voltage.

Figure 2 illustrates terminal board TB1 correctly strapped for 105- or 240-V ac primary power outlet voltage.

WIRE		PRIMARY POWER OUTLET VOLTAGE
	105	105 115 125 210 220 230 240 250
		TERMINAL BOARD TB1 TERMINALS
BIACK	7	7	7	6	6	5	5	4
YELLOW	3	2	1	3	2	2	1	1
RED	6	5	4	3	2	2	1	1

Page 19

TB1 Strapping for 105 Volts or 240 Volts Figure 2

4.4.2 DC Voltage Operation

The transceiver will also accept 12 to 15 volts dc for backup emergency power. The primary power connector must be strapped as shown in figure 3. Power requirements are nominally 3 A in receive and 20 A in transmit.

4.4.3 Transceiver Connectors Signal Parameters

Table 2 lists the signal parameters for all front and rear connectors except the primary and rf power. Refer to figure 4 for connectors location.

TPA-1654-011

Power Connector Strapping for AC or DC Operation Figure 3

Page 20

Table 2. Connectors With Signal Parameters.


ITEM	FUNCTION
Front panel
PHONES (mates with PJ-055)	Output jack for low-impedance (4- to 8-Ω) headphones. Con- necting phones inhibits speaker and SPKR (on rear panel) outputs.
	Tip receiver audio; 4- to 8-Ω impedance, up to 3-W output
	Barrel ground
MIC (mates with PJ-068)	Input jack for high- or low-impedance, dynamic microphone. Jack is also wired for ptt signal.
	Tip ptt line; ground to transmit
	Ring microphone audio; high- or low-impedance input, approx 5 mV in for full-power output
	Barrel common ground
Rear panel
Antenna (mates with PL-259)	Rf connector (type S0-239 with Teflon insert) for coaxial cable connection to antenna linear amplifier, or antenna coupler
Fuse	Primary power fuse (8 A for 110 V, 4 A for 220 V)
J1	Primary power connector
Ground	Stud for earth-ground connection
AUD IN (J2) (mates with phono plug)	Input for 600-ohm, unbalanced line audio: 40-mV input produces 100-W rf output
ALC (J3) (mates with phono plug)	Negative ALC input signal from external power amplifier
ANT RLY (J4) (mates with phono plug)	Receive contacts of internal antenna transfer
	Caution
	Do not connect linear amplifier control to J4. Damage to the receiver may result. External receiver may be connected to J4.
	(Jumpered to RCV IN (J8) if separate receive antenna not used. Cut internal jumper if separate antenna used.)
XVTR OUT (J5) (mates with phono plug)	Exciter output signal for use with transmitting converter. Level adjusted by MIC/CARRIER control. Approximately 200-mW (100-mW, min) output from exciter into 50-ohm load. (To obtain output, connect this line to dc ground through a 1-mH rf choke.)
AUD OUT (J6) (mates with phono plug)	Output for 600-ohm, unbalanced line audio; -10 dB mW at AGC threshold. Level is independent of audio gain control.
AMP CTL (J7) (mates with phono plug)	Relay contacts for tr-switching external power amplifier. Normally open relay contacts; contacts grounded in trans- mit. 2 A. 28 V dc or 0.75 A. 115 V ac capacity

Page 21

ITEM	FUNCTION
RCV IN (J8) (mates with phono plug)	Receiver front end signal input. Bypasses antenna transfer relay and transmit low-pass filters. (Jumpered to ANT RLY (J4) if separate receive antenna not used. Cut internal jumper if separate antenna used.)
PTT (J9) (mates with phono plug)	Push-to-talk switch input. Ground to command transmit operation. (Line is connected to +5 V through 10-k ^Ω resistor.)
KEY (J10) (mates with PJ-055)	CW key input. (Line is connected to +5 V through 10-k? resistor.)
	Tip keying line; ground to transmit
	Barrel ground
SPKR (J11) (mates with PJ-055)	Output for 4- to 8-ohm speaker. Disconnects internal speaker when external speaker connected. (Inhibited when headphones connected to PHONES jack on front panel.)
	Tip receiver audio; 4- to 8-12 impedance, up to 4-W output
	Barrel ground

Table 2. Connectors With Signal Parameters (Cont).

Page 22

TPA-5254-017

Transceiver Connectors Figure 4

Page 23

5. INSTALLATION PROCEDURES

Perform the procedures in paragraphs 2 through 4. Figures 5 and 6 show typical hookups for the transceiver and transceiver with typical 1-kW linear power amplifier. Refer to table 2, the appropriate typical hookup, and the outline and mounting dimensions diagram, and connect the components. Installation kit, part number 641-7181, provides the connectors to mate with the transceiver and fuses for input voltage lines and for the power supply control A9A1 +14-V dc outputs. Figure 7 is the outline and mounting dimensions diagram.

For phone patch interconnections, 600-Ω audio input (J2), ptt (J9), and 4- to 8-Ω speaker output (J11) connectors are available on the transceiver rear panel.

Refer to the phone patch manufacturer's instructions for interconnect information.

Connect the transceiver ground lug on the rear to a good earth or water-pipe ground.

Before using a water-pipe ground, check to make sure that no plastic, rubber, or other such insulating sections will interrupt the electrical continuity to ground. Install a jumper around any insulating sections found. Use heavy copper wire or ground braid and metal pipe clamps.

6. POSTINSTALLATION PROCEDURES

Perform operating procedures as outlined in the operation section.

Transceiver and Linear Power Amplifier Installation Connections Figure 6

Page 24

NOTES:

(1) DIMENSIONS ARE MILLIMETRES [INCHES].

(2) WEIGHT: 21.8 ± 0.5 kg [48.0±1.0 LB].

(3) DENOTES CENTER OF GRAVITY.

(4) CONNECTOR CHART

REF DES	CHASSIS SCREENING	COMPANY PART NO	VENDOR NAME	VENDOR PART N
A9 J1	J1	365-0068-020	TRW CINCH	P-40
A14J3	REMOTE CONTROL	371-0386-080	ITT CANNON	DBU-3
A9 J2	AUD IN	360-0148-000	SWITCHCRAFT	350
A9J3	ALC	360-0148-000	SWITCHCRAFT	350
A9 J4	ANT RLY	360-0148-000	SWITCHCRAFT	350
A9.J5	XVTR OUT	360-0148-000	SWITCHCRAFT	350
A9J6	AUD OUT	360-0148-000	SWITCHCRAFT	350
A9J7	AMP CTL	360-0148-000	SWITCHCRAFT	350
A9J8	RCV IN	360-0148-000	SWITCHCRAFT	350
EL CA	PTT	360-0148-000	SWITCHCRAFT	350
A9J10	KEY	358-0014-000	QPL	M641
A9J11	SPKR	360-0136-000	SWITCHCRAFT	13E
A10J2	MIC	358~1050~000	QPL	M641,
A10J1	PHONES	360-0136-000	SWITCHCRAFT	13E
A1 J4	NONE	357-9005-000	AMPHENOL	83-7

Page 25

VENDOR NAME	VENDOR PART NO	COMPANY MATING PART NO	VENDOR NAME	VENDOR PART NO
TRW CINCH	P-406-AB	365-0068-010	TRW CINCH	S-406-CCT
ITT CANNON	DBU-25SBF	371-0170-000	TRW CINCH	DBM-25P
SWITCHCRAFT	350 IFP	361-0062-000	SWITCHCRAFT	350 IMC
SWITCHCRAFT	350 IFP	361-0062-000	SWITCHCRAFT	350 IMC
SWITCHCRAFT	350 IFP	361-0062-000	SWITCHCRAFT	350 IMC
SWITCHCRAFT	350 IFP	361-0062-000	SWITCHCRAFT	350 IMC
SWITCHCRAFT	350 IFP	361-0062-000	SWITCHCRAFT	350 IMC
SWITCHCRAFT	350 IFP	361-0062-000	SWITCHCRAFT	350 IMC
SWITCHCRAFT	350 IFP	361-0062-000	SWITCHCRAFT	350 IMC
SWITCHCRAFT	350 IFP	361-0062-000	SWITCHCRAFT	350 IMC
QPL.	M641/12-1	361-0018-000	QPL .	PJ-055B
SWITCHCRAFT	13E	361-1040-000	MALLORY	75
QPL	M641/5-1	361-0001-000	QPL	PJ-068	í
SWIICHCRAFT	13E	361-1040-000	MALLORY	75
AMPHENOL	83-798	357-9014-000	AMPHENOL	83-822

TPA-5305-014

Transceiver Outline and Mounting Dimensions Figure 7

Page 26

HF-380 Transceiver

Printed in USA

llins Telecommunications Products Division

Paragraph

1. General
2. Controls and Indicators
3. Operating Procedures
3.1 Preoperational Check
3.2 Frequency Selection
3.3 Function Selection
3.4 Gain Controls
3.5 Selectivity
3.6 MIC/CARRIER Control
3.7 Operations
3.7.1 CW Operation
3.7.2 SSB Operation
3.7.3 RTTY Operation
3.7.4 AM Operation (Receive Only)

operation

Page 27

operation

1. GENERAL

Operation of the HF-380 Transceiver is controlled by the front-panel controls and indicators. Connectors (jacks) on the front panel and rear panel provide necessry interface for transceiver operation.

When the optional AC-3803 Control Interface is installed, a remote key pad control may be used for keying in, storing, and recalling up to 11 frequencies.

2. CONTROLS AND INDICATORS

The functions of the controls and indicators on the transceiver front panel are described in table 1. Figure 1 illustrates the location of the controls and indicators.

TPA-5253-017

Controls and Indicators Figure 1

Page 28

Table 1. Controls and Indicators.

	F	r
INDEX NO	CONTROL OR INDICATOR	FUNCTION
1	Meter	In receive, indicates relative signal strength in "S" units. (Rf input of 100 µV "hard" (50 µV "soft") gives S9 indication.) In transmit, indicates signal selected by METER switch.
2	Function switches	Selects related function when switch is in position.
	мох	Manually-operated receive-to-transmit switching. Places transceiver in transmit when pressed in.
	vox	Voice-operated receive-to-transmit switching. Ptt switching also operable.
	NB	Noise blanker.
	PROC	Speech processor
	AGC	Automatic gain control (Switch must be in in position to enable AGC function.)
	SLOW	Selects slow AGC action in in position; fast AGC when out. (AGC switch must be in in position for fast/slow action to be enabled.)
3	VOX DELAY	Adjustments for transmit-to-receive switching time delay.
	CW	Delay between last key-up action and receive mode
	SSB	Delay between last microphone VOX input and receive mode
4	VOX GAIN	Adjusts levels at which receive-to-transmit switching occurs.
	VOX	Voice or line audio input signals
	ANT1	Speaker-to-microphone signals
5	Frequency readout	Displays frequency in 10-Hz increments.
6	Frequency control switches	Selects frequency increments selected by tuning knob. Continuous tuning for any increment with roll-around at end limits.
		1-MHz increments
	SYNC	Loads displayed frequency in nonselected vfo register to synchronize both vfo frequencies.
	LOCK	Dial lock prevents tuning knob from changing frequency when rotated. Release by pressing in any increment switch.
		1-kHz increments
	(left)	100-Hz increments
	(right)	10-Hz increments
7	Frequency tuning knob	Frequency selection control (Provides 200 increments per revolution for all except MHz steps at 10 increments per revolution.) Works in conjunction with switches above knob.

Page 29

Table 1. Controls and Indicators (Cont).


INDEX NO	CONTROL OR INDICATOR	FUNCTION
8	POWER switch	Controls primary power input.
9	VFO	Selects frequency-storage register.
	А	A register. Transmit and receive on same frequency.
	В	B register. Transmit and receive on same frequency.
	RA-TB	Receive on A register frequency, transmit on B register frequency.
	RB-TA	Receive on B register frequency, transmit on A register frequency.
10	SPOT	In CW mode only, enables 800-Hz tone to which received CW tone is matched to spot transmitted frequency to exact received frequency.
11	SELECTIVITY	Controls selectivity of receiver.
	PBT (small knob)	Passband tuning. Used to selecte USB, LSB, or CW during receive mode. Continuously varies position of passband (bandwidth selected by BW control) within 8-kHz passband of first if filter.
	BW (large knob)	Selects filter bandwidth.
	8.0	8.0-kHz filter (for AM, also selects optional 6-kHz AM filter if installed).
	2.2	2.2-kHz filter (for normal SSB)
	OPT 1, 2, 3	Three positions for optional filters.
12	MODE	Selects mode of transmit operation.
	CW	Continuous wave
	USB	Upper sideband Receive sideband
	LSB	Lower sideband ) of PBT control.
	AM RCV	Amplitude modulation, in receive only. Transmitter does not operate in AM mode.
13	GAIN	Adjusts gain of receiver circuits.
	AF (small knob)	Af amplifier gain
	RF (large knob)	Rf amplifier gain
14	PHONES (mates with PJ-055)	Output jack for low-impedance (4- to 8-Ω) headphones. Con- necting phones inhibits speaker and SPKR:(on rear panel) outputs. Tipreceiver audio; 4- to 8-Ω impedance, up to 3-W output Barrelground

Page 30

INDEX NO	CONTROL OR INDICATOR	FUNCTION
15	MIC (mates with PJ-068)	Input jack for low or high impedance, dynamic microphone Jack is also wired for ptt signal. Tipptt line; ground to transmit
		Ring microphone audio; 3.3-kΩ nominal input impedance, approximately 5 mV in for full power output
		Barrel-common ground
16	METER (switch)	Selects signal applied to meter during transmit.
	ALC	Transmitter automatic level control voltage
	VC	Collector voltage for final amplifier stage
	PF	Forward rf power sampled at amplifier output
	PR	Reflected rf power sampled at amplifier output
17	MIC/CARRIER	In sideband operation, adjusts microphone amplifier gain. In CW operation, adjusts rf carrier level.

Table 1. Controls and Indicators (Cont).

3. OPERATING PROCEDURES

3.1 Preoperational Check

a. Check that all interconnect cables are properly connected to the transceiver.
b. If the blower kit is installed, ensure blower intake is unobstructed.

3.2 Frequency Selection

The large tuning knob and row of switches immediately above it control transceiver frequency selection. When power is applied to the transceiver, the frequency is automatically set to 15.000 00 MHz. Frequency data is not retained in the vfo registers when power is turned off.

There is no need for bandswitch since selection of the MHz tuning increment permits tuning from 0 to 29 MHz in three turns of the knob. This rate is effective for the MHz digits only. Selecting other increments automatically switches the tuning rate to 200 steps per turn. For example, selecting the 100-Hz increment gives 20 kHz per revolution of the tuning knob.

When a switch is depressed to select a frequency increment to be changed, that and all higher increments will change as the tuning knob rotates. For

example, if the 100-Hz increment is selected, the 10-Hz digit remains where last set. Rotating the tuning knob clockwise causes the 100-Hz digits to increment up through 9, index the 1-kHz digit by one, and roll around to 0 to continue incrementing toward 9 again. Counterclockwise rotation causes the frequency to decrement in a similar fashion.

Once a chosen frequency is selected, pressing the LOCK switch to the in position electronically disables the tuning knob operation. In LOCK, rotation of the tuning knob has no effect on the frequency. To restore tuning control of the knob, press any tuning increment switch to return the LOCK switch to the out position.

The SYNC switch is momentary and when depressed, will load the displayed frequency value from the operating vfo register into the register that is not being displayed. For example, if using register B, depressing SYNC will lead the same frequency into register A. The frequency in register B can then be changed without affecting the stored value in register A.

The A and B vfo registers may contain any two frequencies. Split-frequency operation is achieved by selecting RA-TB or RB-TA. With RA-TB chosen, the transceiver will receive on the frequency in the A

Page 31

register and transmit on the frequency in the B register. The frequency display shows the receive frequency when receiving and the transmit frequency when transmitting.

The vfo registers can be set up for split-frequency operation on any two frequencies, even within separate bands.

In CW operation, the SPOT switch enables an 800-Hz tone that is applied to the receiver audio output. By tuning the received signal so the CW audio frequency matches the 800-Hz SPOT frequency, the receiver frequency will be matched with the transmitted frequency.

3.3 Function Selection

Depressing the MOX or VOX switch selects manualor voice-operated keying, respectively. The rear panel PTT jack (J9), when grounded, will key the transmitter regardless of MOX or VOX selection.

When pressed to the in position, the MOX switch keeps the transceiver continuously keyed. For normal transmit-receive operation, the MOX switch must be out. With MOX and VOX both out, the transceiver is keyed with the microphone ptt switch. Selecting VOX enables voice keying in sideband or CW keying in CW.

The AGC function can be enabled by depressing the AGC switch. The out position inhibits AGC operation. Release time of the AGC is controlled by the SLOW switch. The in position selects a slow release time. This is normally used in SSB operation. Fast AGC release, the switch out position, is more useful for CW reception.

The optional noise blanker and speech processor circuits, when installed, are selected by depressing the respective NB or PROC switch to the in position. The noise blanker reduces or eliminates pulse-type noise, such as from automobile ignition systems, from the receiver audio output. The speech processor increases the ratio of average to peak power in the rf output signal. This increases talk power and may be desired in DX operation.

The DELAY controls adjust the time the transceiver is held in the transmit mode after the voice input or CW keying signal is removed. Clockwise adjustment

of either control increases the delay between the last input of automatic transmit-to-receive switching. Independently set these controls as desired for the preferred delay times.

3.4 Gain Controls

The GAIN controls adjust the sensitivity to microphone input signals from the operator (VOX) or from the receiver speaker (ANTI-VOX). Set the VOX GAIN so the normal voice level used during transmitting keeps the receiver keyed. A level too high may cause background noises to key the transmitter while a level too low will require a loud voice input to the microphone for keying. In CW, advance VOX GAIN until an rf output is obtained when the transceiver is keyed in the VOX mode. Set the ANTI-VOX GAIN to the minimum gain (ccw) level that prevents the microphone pickup of the speaker output from tripping the VOX circuit.

3.5 Selectivity

The large (rear) BW switch controls the receive bandwidth by selecting any one of the installed filters. Filter installation information is given in the maintenance section. The 6-kHz AM filter (AC-8313) is particularly recommended for critical AM listening.

The small (front) PBT control positions the passband of the selected filter within the 8-kHz passband of the receiver first if and is used to select the desired sideband in receive. For RTTY, position the pointer near LSB (left-most position); and for USB, between OPT 2 and OPT 3.

Note

The MODE switch does not determine which sideband is received. It only selects the desired transmit passband.

The PBT control can shift the position of the receive selectivity by adjusting the passband above or below the normal frequency position. In either USB or LSB, rotating the control toward the vertical (OPT 1) position lowers the audio frequency passband. This produces a lower audio tone. Figure 2 illustrates this. Figure 3 illustrates how the passband can be tuned away from an interfering signal to put the signal outside the passband and eliminate the interference.

Page 32

TPA-1665-011

Filter Passband Positioning with PBT Control Figure 2

3.6 MIC/CARRIER Control

The MIC/CARRIER control adjusts the audio modulation level or the CW carrier level to control the rf output power. For voice operation, set the METER switch to ALC. Key the transmitter and speak into the microphone or say "Ahhhh" in a normal operating-voice level while adjusting the MIC/CARRIER control until the meter indicates S5 to S9 on the Sunit scale. A more counterclockwise position of the control will give less than this full-power output setting.

DO NOT EXCEED S9 ALC indication or distortion may be generated. Normal power output is 100 watts pep. In voice operation, this will produce an average power output of 15 to 25 watts on an average power

wattmeter. Speech processing will increase this average by several dB.

For CW operation, set the METER switch to ALC. Key the transmitter and adjust the MIC/CARRIER control clockwise until the meter indicates S5 to S9. A more counterclockwise position of the control will give less than this full-power setting.

3.7 Operations

Adjustments of the transceiver controls will vary with individual operators. The following setups give initial control settings for each mode of operation. After setting up the transceiver, the controls may be adjusted as desired during operation. If a linear power amplifier or antenna coupler is used with the transceiver, tune the amplifier or antenna coupler by using the CW MODE of the transceiver. Since the CW key line is closed circuit, a key is not necessary. If a key is used, it must be closed in VOX or MOX. Simply depress VOX or MOX for transmit enable.

The rf input to the amplifier/coupler is controlled with the MIC/CARRIER control. This control should be slowly adjusted from minimum power (full counterclockwise position) upward to an output level adequate for tuning the amplifier/coupler. There is a short lag between control adjustment and rf output level change. Use caution to not overdrive the power amplifier. For RTTY operation, the modem output (to the transceiver line audio input, J2) must be AFSK; FSK will not work.

3.7.1 CW Operation

a. Set the POWER switch to ON.
b. Set the MODE switch to CW position.
c. Set the VFO switch to A or B positions.
d. Adjust RF and AF GAIN controls to desired levels.
e. Set the SELECTIVITY BW switch to desired bandwidth position.
f. Set the SELECTIVITY PBT control to midrange (vertical position).
g. Select unused frequency near desired operating frequency.
h. Set METER switch to ALC position.
i. Key transceiver and adjust MIC/CARRIER switch for S5 to S9 ALC indication on meter.

Note

VOX GAIN must be set to high enough level to trigger the VOX circuit.

Page 33

j. Release the key and tune to operating frequency.

3.7.2 SSB Operation

a. Set the POWER switch to ON.
b. Set the MODE switch to LSB or USB, as desired for band of operation.
c. Set the VFO switch to A or B position.
d. Adjust RF and AF GAIN controls to desired levels.
e. Set the SELECTIVITY BW switch to 2.2 position (2.2-kHz bandwidth).
f. Set the SELECTIVITY PBT control to between 8.0 and 2.2 (for LSB) or OPT 2 and OPT 3 (for USB).
g. Select unused frequency near desired operating frequency.
h. Set METER switch to ALC position.
i. Depress the VOX function pushbutton if ptt operation is not desired.
j. Key transceiver and speak into microphone while adjusting MIC/CARRIER control to power output level desired (normally to level where meter indicates S5 to S9 on S-unit scale). Do not exceed S9.
k. Unkey and tune to operating frequency.

3.7.3 RTTY Operation

a. Ensure microphone is disconnected from transceiver.
b. Connect AFSK RTTY signal to AUD IN.
c. Set the POWER switch to ON.
d. Set the MODE switch to LSB position.
e. Set VFO switch to A or B position.
f. Adjust RF and AF GAIN controls to desired levels.

g. Select desired bandwidth filter for receive using SELECTIVITY BW switch. (Transmit automatically selects 2.2-kHz filter).
h. Set SELECTIVITY PBT control to second index mark to left of top center.
i. Set METER switch to ALC position.
j. Select unused frequency near desired operating frequency.
k. Depress the MOX function pushbutton (transceiver keys).
1. Adjust MIC/CARRIER control to ALC indication between S5 to S9.
m. Depress MOX function pushbutton to release key (unkeyed position).

Note

VOX may be used if AFSK modem mutes tone during receive.

n. Tune to operating frequency.

3.7.4 AM Operation (Receive Only)

a. Set the POWER switch to ON.
b. Set the MODE switch to AM position.
c. Set the VFO switch to A or B position.
d. Adjust RF and AF GAIN controls to desired levels.
e. Set the SELECTIVITY BW switch to 8.0 (8.0-kHz bandwidth). The operational AC-8313 6-kHz filter is recommended for optimum AM reception.
f. Set the SELECTIVITY PBT control to midrange (vertical position).
g. Tune to desired frequency.

Page 34

Rockwell International

HF-380 Transceiver

Printed in USA

bilins Telecommunications Products Division 523-0772526-001218 1 August 1982

F-380 Trans

Paragraph

1. Gen	erai
2. The	2 ~ 2				•
	·
2.1 Ove	erall Unit System	·		•
2.2.1 T	ransmit		••••••	•
2.2.2 R 2.3 Fre	quency Generation	•	•	•	••••••
2.4 Pov	ver Supply		••••••	λ.	•••••
2.4.1 P	4-V Regulator	••••••••••• • ••••••••	•	•	·
2.4.3 +	5- and +9-V Regulators				•••••
2.4.4 +2 2.5 Dis	play Card A10A1		•	•	·

Page

Page 35

theory

1. GENERAL

This section contains information describing the operating principles of the HF-380 Transceiver on a functional level. Operating principles of the plug-in circuit cards/subassemblies are described only to the level necessary to make the overall description meaningful. Specific operating principles of the circuit cards/subassemblies are presented in the individual circuit card instruction sections of this instruction book.

2. THEORY

2.1 Overall Unit

The transceiver is a double-conversion superhetrodyne receiver and single-sideband transmitter.

The transceiver operates on either sideband for voice transmission. CW transmission is generated by keying a carrier oscillator. For RTTY transmission, an external AFSK modem is required to generate audio signals for modulation on LSB. The receiver has a product detector for SSB and an envelope detector for AM reception. Transmission by AM is not possible with the transceiver. Figure 1 is a simplified block diagram of the transceiver.

Rf frequencies for the receiver-exciter circuits are synthesized by a 3-loop phase-locked loop synthesizer that is tunable in 10-Hz steps. A controltemperature oven oscillator develops the 39.6-MHz and 4.55-MHz signals for use in the synthesizer and receiver-exciter, while a standard crystal oscillator develops the 454.2-kHz signal used in the receiverexciter. The 4.55-MHz output is divided by 10 to get

() NOISE BLANKER AND SPEECH PROCESSOR ARE INDIVIDUAL OPTIONS.

TPA-2177-013

Transceiver, Simplified Block Diagram Figure 1

Page 36

the 455-kHz output. Inputs from the front-panel frequency-selection controls are applied to a microprocessor. The microprocessor outputs are frequency data to the synthesizer, control signals to the lowpass filter assembly and receiver-exciter, and operating frequency data to the front-panel frequency display.

Receiver selectivity is controlled by switch-selectable bandwidth filters and a variable if circuit. The filters and variable if circuit make up the passband tuning (PBT) subassembly. An optional noise blanker, connected into the receiver circuit just before the second receiver mixer, blanks ignition-noise-type pulses from the received signal. An optional speech processor, connected into the exciter circuit after the microphone preamplifier, compresses audio signal peaks to permit using higher average power level audio signals for modulating the exciter.

The exciter output is applied to the power amplifier. The power amplifier is a broadband type that does not require tuning. From the foward and reflected power analogs, the power amplifier develops an ALC signal that is applied to the exciter. This ALC signal controls the exciter gain to prevent overdriving the power amplifier. A thermistor-controlled circuit keeps the power amplifier output reduced to a safe level if overheating occurs.

The power amplifier output is applied through a tr relay, to the low-pass filter assembly. (In receive, the tr relay directs the receive signals to the receiver circuits.) A control signal from the microprocessor automatically selects the appropriate low-pass filter for the frequency of transmission. If the receive frequency is in a different band from the transmit frequency, the microprocessor automatically switches the appropriate filters in and out of the rf path as the transceiver is switched from receive to transmit and back. A directional coupler measures the forward and reflected rf power signals. The results are coupled back to the power amplifier ALC circuits. An ALC signal from an external linear power amplifier may also be applied to the transceiver power amplifier for ALC control of the exciter

All power for the circuits is developed from the power supply. The supply operates from 115 or 230 volts (nominal), 50 to 60 Hz; or from 12 to 15 V dc for standby or emergency operation. A thermal switch, located on the power amplifier heat sink, turns off the power supply output if heat from the series-pass power transistors or power amplifier output transistor becomes excessive.

2.2 RF System (Refer to figure 2)

2.2.1 Transmit

The transmit rf signal path starts at microphone preamplifier U500A. The audio input to U500A is either through J24 (microphone) or J21 (line audio). The third input to U500A is from sidetone generator U903A/U905G. The sidetone signal, normally generated during CW keying, is nominally an 800-Hz tone. If a fault occurs during transceiver tuning or if the phase-locked loop in the synthesizer fails to lock on, the 800-Hz sidetone is turned on and off at a 10-Hz rate, resulting in a rapid beeping audio output from the transceiver.

The output of U500A is applied to the VOX circuit and to MIC/CARRIER potentiometer R6B. The audio tapped from R6B, amplified by amplifier U500A, is applied to balance modulator U501. The audio input to U501 modulates the 455-kHz signal in sideband mode. R513 (carrier balance) is adjusted for minimum rf carrier output from the exciter with no audio input. If the operating mode selected is CW, the 455-kHz signal is not applied to U501, therefore, no output is produced.

In the sideband mode, the balanced modulator output is a double sideband signal applied to amplifier Q500. The amplifier output is applied, through forward-biased CR508 (in sideband), to the passband tuning assembly through rf switch (CR119 and CR120). If the transceiver is operating in CW, the SSB logic signal is not aplied to CR508, and +5-V CW select is applied to CR509 through switch Q503.

Absence of the SSB logic signal keeps any output from Q500 being applied to other circuits. The +5-V CW logic signal forward biases CR509 to permit the output of Q503 to be applied to the passband tuning assembly.

The audio modulated 455-kHz input to passband tuning assembly A4 is automatically positioned to the proper location within the filter passband of the mode selected by a mode-selected preset voltage. The filtered output of A4 is switches to first transmit mixer U103 through CR119. The 455-kHz signal is mixed with a 39.6-MHz input from oscillator A7. The resultant 39.145-MHz output of U103 is applied to transmit if amplifier Q104. Amplifier Q104 is the ALC and carrier level control point for the transmit signal. In sideband, the internal ALC from power

Page 37

Page 38

RF System, Functional Block Diagram Figure 2 (Sheet 1 of 2)

Page 39

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TPA-4543-024

RF System, Functional Block Diagram Figure 2 (Sheet 2)

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amplifier A1A1 or external ALC from an external nower amplifier controls the output level of Q104. In CW the output of Q104 is level-controlled by the front panel MIC/CARRIER control R6B. The output of Q104 is applied to crystal filter FL1A/B through diode CR113. The crystal filter has an 8-kHz passband centered on 39.145 MHz. The crystal-controlled output of FL1A/B, applied through forward-biased CR112, is amplified by Q101 to compensate for the filter insertion loss. The output of Q101 switched through CR109 is applied to second transmit mixer U100.The 39.145-MHz input to U100 is mixed with a variable local oscillator input from synthesizer A5. This variable local oscillator input (39.645- to 69.145-MHz, depending upon the selected operating frequency of the transceiver) results in a difference frequency output that is the operating frequency of the transceiver.

The output of U100 is diode-switched to broadband amplifier, Q202 and Q204. The broadband amplifier develops approximately 23 dB of gain for a maximum exciter output of 100-mW rf. Relay K200 is normally deenergized, thereby directing the exciter output to power amplifier A1A1.

When the exciter output is used to drive a transverter, the transceiver rear panel J5 connector is connected to ground through a 1-mH rf choke. With the connector grounded for dc but not for rf, relay K200 energizes.

The 100-mW rf signal is applied to predriver Q1 in power amplifier A1A1. Power amplifier A1A1 produces an rf output of 90 watts pep minimum from a 100-milliwatt nominal input. The amplifier is protected from high vswr. excessive output power, and thermal overheating by an ALC circuit. ALC amplifier U101A inputs are from average power amplifier U81A, which monitors the forward power detected by directional coupler A2A2: reflected power amplifier U81C, which monitors the reflected power detected by directional coupler A2A2; current sense amplifier U101D, which monitors the output of drivers Q41A/Q41B; and ALC thermal limiting amplifier, which monitors a thermistor detecting temperature from the heatsink. The ALC output from U101A is applied to receiver-exciter A3 at J16-6. This signal controls the level of the transmit if signal, thereby controlling the exciter output. If a malfunction occurs and the exciter output increases beyond normal, the U101A output increases. When the U101A output reaches approximately +3.2 volts.

transistors Q3 and Q4 conduct, lowering the output of predriver Q1. This provides fail-safe operation for the transceiver.

The rf output coupled from transformer T4 is applied to tr relay A2A2K1. When in transmit, the relay is energized, thereby applying the transmit rf signal to one of five control card-selected low-pass filters in low-pass filter A2A1 or one of four control card selected filters in the low-pass filter A2A3. The filtered rf signal is routed through the directional coupler to A2J2 for application to an antenna.

2.2.2 Receive

The receiver rf signal path starts at jack A2J2, or at RCV IN jack J8 if a separate antenna is used for receive. The ANT RLY jack J4 provides for connecting the receive input to another receiver.

Note

Refer to installation section for receive connection information.

LC filter TB1 provides first image rejection for the received signal, and also provides filtering so the local oscillator signal will not feed through to the antenna.

The high-pass filters consist of a 0.5- to 1.6-MHz rolloff filter that attenuates signals in the 0.5- to 1.6-MHz broadcast band and three selectable high-pass filters selected depending on band of operation. The filtered rf receive input is applied to an automatic gain control circuit to control rf signal strength.

The receive rf signal is applied to first receive mixer U100 through rf switch CR107. The receive rf is mixed with the variable injection frequency (39.645 to 69.145 MHz) to generate the first if frequency of 39.145 MHz. The first if is diode-switched through CR109 to amplifier Q100. Amplifier Q100 provides approximately 14 dB of gain. This amplified if is diode-switched through CR111 to crystal filter FL1A/B. The filtered if is applied to receive if amplifier Q102. Amplifier Q102 provides approximately 24 dB of gain when the input is below the AGC 2 threshold level. The amplified if from Q102 is applied to second receive mixer, U101, directly or through optional noise blanker A11.

The noise blanker reduces spike-type noise in the if signal.

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The second receive mixer, U101, mixes the 39.145 MHz if with a fixed local oscillator frequency (39.6 MHz) to produce the 455-kHz if signal. The 455-kHz if signal is diode-switched through rf switch CR115 to passband tuning assembly A4 and passband tuning option A13.

The SELECTIVITY BW front panel switch is used to select any one of the installed filters for the receive bandwidth. The SELECTIVITY PBT front panel control positions the passband of the selected filter within the 8-kHz passband of the receiver first if, and is used to select the desired sideband in receive.

The receive output of A4 and A13 is diode-switched through CR120 to receive if amplifier U700. Pin diode CR700, controlled by AGC 3 voltage is at the input of U700 for gain control. The AGC 1 input also provides control of the if input. The output of U700 is split, with a portion going to product detector U701, for SSB/CW modes, and a portion being applied to AGC amplifier Q700, for AM mode.

The AGC amplifier output is applied to Q400 for generation of the AGC signal, and to AM detector Q701 and Q702 for detection of the received audio. If AM mode is selected, switch U600B is closed, resulting in the AM receive audio being applied to audio preamplifier U601A. Product detector U701 receives a 455kHz bfo input in sideband or a 454.2-kHz bfo input in CW. The product detector output is an audio signal corresponding to the received sideband or CW signal. The audio output is switched through switch U600D in sideband or U600C in CW. In sideband, the audio is applied directly to audio preamplifier U601A, and in CW the audio is filtered by U601C before it is applied through U600A to audio preamplifier U601A. The output of U601A is present at the AUDIO OUT line. goes through audio LPF module, and is applied to front panel AF GAIN control R5B. The AF GAIN control potentiometer adjusts the audio signal to amplifier U602A. Amplifier U602A drives the speaker or headphones.

When in CW mode, a sidetone signal is generated, filtered by U601D, and then amplified, resulting in an approximate 800-Hz tone when the key is down.

2.3 Frequency Generation (Refer to figure 3)

Oscillator A7, synthesizer A5, and control A8 constitute the frequency generation circuits within the transceiver. Oscillator A7 contains a controltemperature oven oscillator which develops the 39.6-MHz and 4.55-MHz signals, and a standard crystal

oscillator to generate the 454.2-kHz signal. Only the 39.6-MHz output is adjustable over a limited frequency range. The 4.55-MHz output is divided by 10 to get the 455-kHz output.

Synthesizer A5 consists of three phase-locked loops contained on variable reference frequency loop A5A2 and output loop A5A1. External signals input to the synthesizer are the 39.6-MHz output from A7; frequency data, clock, and strobe from control A8; and dc voltages for component operation.

The 39.6 MHz is divided by four, producing a 9.9-MHz output. The 9.9-MHz output is applied to control A8 to use as a clock signal. The 9.9 MHz is divided by 99 to produce a 100-kHz signal for use by the synthesizer loop 2 reference frequency, and the 100-kHz signal is divided by 200 to produce a 500-Hz signal used for the variable reference loop reference frequency.

The frequency data, clock, and strobe from control A8 determine the frequency output to the receiverexciter at A5A1P1.

The synthesizer contains three loops to get 10-Hz frequency increments. Loop 1 develops the 39.145- to 69.145-MHz signal used in the receiver-exciter as a local oscillator variable injection frequency. The loop 2 output is used as a mixing frequency with the loop 1 vco output. The variable reference frequency loop output is used as the reference frequency for loop 1.

Loop 2 frequency is controlled by the 1's and 10's MHz frequency data. This data is loaded into serialto-parallel decoders, then applied to the +N divider. Frequency data inputs to the divider determine the division ratio. N. The ratio is the number by which the vco frequency is divided to equal, when locked, the 100-kHz reference frequency input to the frequency/phase detector. Before a locked condition is obtained, the difference between the divided-down veo output and the reference frequency causes the error voltage that drives the vco frequency to a value that nulls the error. At the frequency, the divideddown vco output is 100 kHz-the detector reference frequency. The vco output, proportional in frequency to the selected 1's to 10's MHz frequency digits, is applied to the loop 1 mixer.

The variable reference frequency loop is controlled by the 100's kHz through 10's Hz frequency data. Frequency data is loaded into serial-to-parallel decoders, then applied to the variable reference loop-N divider. Operation of the variable reference loop is

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TPA-5531-014

Frequency Generation, Block Diagram Figure 3

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similar to that of loop 2. The divided-down vco output is compared with a 500-Hz reference frequency input. Any difference causes an error voltage that shifts the vco to the correct frequency. The variable reference loop vco output is the reference frequency input to loop 1.

The loop 1 circuit is somewhat different from the other two. The ÷N ratio for loop 1 is fixed, but the vco output is mixed with the loop 2 vco output that is varied with the selected operating frequency. The loop 1 reference frequency is variable also, and depends on the selected operating frequency. Frequency error detection and correction voltage generation is the same as for the other two loops.

2.4 Power Supply (Refer to schematic in diagrams section and figure 4)

2.4.1 Primary Power Input

The ac input, applied to transformer T1, is strapped according to the voltage level to cover a range of 105 to 125 or 210 to 250 V.

The ac power supply can be bypassed for dc power use. This requires a power plug wired with a jumper between pin 8 and pin 10, +14 V applied to pin 11, and ground to pin 9. When wired this way, dc power is applied directly to the +14-V output, bypassing transformer T1 and the series pass transistors Q1, Q2, and Q3.

Ca	ut	ion

The jumper must not be present on the ac power plug.

Series pass transistor Q1 through Q3 and related components regulate the rectified ac to +14 V. The regulator circuit for Q1 through Q3 is on subassembly A2A1, along with the 9- and 5-V regulators.

2.4.2 +14-V Regulator

Comparator U1A and related components are current overload protection. Comparator U1A compares the voltage across R5/R6 (a result of the power supply output current) with the voltage at the junction

Power Supply, Block Diagram Figure 4

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of R16 and R30. The output of U1A, along with that from U1B, biases A2A1Q1, the control transistor for the series pass transistors. Resistor R16 adjusts the voltage comparison reference level to set the current protection level.

Comparator U1B and related components develop the voltage control for the +14-V output. Comparator U1B compares a voltage from the +14-V output with a reference voltage developed by VR1. The voltage control level is adjusted by R23. The output of U1B supplies a bias voltage to Q1. An overheat condition, sensed by thermal switch S1 on the heat sink, will cause the U1B output to turn off Q1, turning off the series pass transistors.

Zener VR2 is a transient absorber and reverse dc input power protector.

2.4.3 +5- and +9-V Regulators

Regulators U2 and U3 and related components develop +5- and +9-V outputs, respectively. Resistor R1 drops the voltage for the input of the +5-V regulator. The output voltage levels of U2 and U3 are adjusted by R12 and R14, respectively.

2.4.4 +24-V Regulator (Subassembly A9A2)

The +24-V switching circuit boosts the +14-V input to a +24-V output. Voltage step-up occurs as Q1 switches the current through L2. When Q1 is off, the

collapsing field about L2 causes the voltage boost. Astable multivibrator U1 switches Q1. The switching frequency is determined by C2, R1, R2, and R3, with R3 an adjustment for the frequency and consequently the resulting regulator output voltage.

The voltage from L2 is rectified, filtered, and applied to VR3 for regulation to +24 V. Filter C5, C6, L3 suppresses noise caused by the switching.

2.5 Display Card A10A1 (Refer to schematic in diagrams section)

The display card receives frequency data from the control card, decodes the data, and displays the frequency value on 7-segment readouts. Inputs from J1-5, -7, and -9 are applied to U1. From these bcd inputs, U1 develops sequential logic 0's at its seven outputs. These logic 0's are latch enable signals for decoder/ drivers U2 through U8. When a latch enable is logic 0, bcd frequency data at the applicable decoder/ driver input is transferred in, decoded to 7-segment format, and latched to the output until the next logic 0 latch enable signal. Input frequency data to the decoder/drivers is from the control card, in parallel format, through J1-4, -6, -8, and -10.

Figure 5 is a simplified diagram showing latch enable signal development from the U1 inputs, corresponding decoding of the bcd inputs to the decoder/ drivers, and resulting frequency digit displays at the 7-segment readouts.

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Display Circuit Logic and Block Diagram Figure 5

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Rockwell International

maintenance

523-0772527-001218

1 August 1982

Collins Telecommunications Products Division

HF-380 Transceive

Maintenance

HF-380 Transceiver

Printed in USA

Paragraph	Page
1. General	. 1
2. Test Equipment and Tools	. 1
3. Testing and Troubleshooting	. 3
3.1 General	. 3 . 3 . 3
4. Adjustments	. 20
4.1 Receiver-Exciter Sidetone and Spot Potentiometer Adjustments	. 20 . 20
5. Disassembly/Assembly	. 21
5.1 Replaceable Fuses and Lamps	. 21
6. Repair	21
6.1 General 6.2 Electrostatic Discharge Sensitive Devices Precautions. 6.2.1 Handling of ESDS Devices 6.2.2 Storage of ESDS Devices 6.2.3 Testing of Subassemblies Containing ESDS Devices	··· 21 ·· 21 ·· 22 ·· 22 ·· 22
6.2.4 Replacement of ESDS Devices	·· 22

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maintenance

1. GENERAL

This section provides instructions for testing and maintaining the HF-380 Transceiver. Testing and troubleshooting procedures provide a means to make a rapid evaluation of essential equipment operational characteristics to determine if performance is satisfactory. If the transceiver fails to meet a performance standard, review the symptoms and the operating conditions under which they occurred to isolate a faulty module or chassis-mounted component, or determine if adjustment is necessary. Individual circuit card/subassembly instructions in the instructions sections contain testing and troubleshooting procedures to isolate faults to a specific circuit or individual component.

Warning

This device contains a radio frequency transmitter which, when operated into an antenna, may produce electromagnetic

fields in close proximity to the antenna that are in excess of Occupational Safety and Health Administration (OSHA) recommended maximum limits.

Caution

This equipment contains electrostatic discharge sensitive (ESDS) devices. Special handling methods and materials must be utilized to prevent equipment damage. Refer to paragraph 6 before performing maintenance on the equipment.

2. TEST EQUIPMENT AND TOOLS

Table 1 lists the test equipment required to perform the tests and adjustments. Included in table 1 are tools necessary for circuit card repair. A suggested type is given; however, that specific equipment is not required. Any that meets or exceeds the illustrated minimum specifications is acceptable for use.

ITEM	MINIMUM SPECIFICATIONS	REPRESENTATIVE TYPE
Flux		Kester 1544
Solder	0.5-mm (0.020 -in) diameter, 63/37 rosin flux core
Solvent	Freen	Freon TMC
Soldering iron	40 W, 1.5875-mm (1/16-in) tip
Solder sucker	Plunge r-t ype
Needle-nose pliers
Small brush
Pipe cleaners
Diagonal cutters
Electrician's scissors

Table 1. Test Equipment and Tools.

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Table 1. Test Equipment and Tools (Cont).

ITEM	MINIMUM SPECIFICATIONS	REPRESENTATIVE TYPE
Nonmagnetic tweezers
HumiSeal 1B31 coating
Adhesive		Dow Corning RTV-3140
60-dB attenuator (or two 30-dB attenuators)	60 dB, 200 W, 50 ohm, 1.6 to 30 MHz	Sierra Electric 662A-30 (2 required)
Frequency counter	1.6 to 30 MHz, ±1-Hz accuracy	Fluke 1910A
CW key	Continuously-closed switch provision	AC-2827
Rf wattmeter	0 to 150 watts	Bird 43 with 250 H element
Rf load	150 watts continuous, 50 ohms	Bird 8135
Microphone	Dynamic type, low impedance; push-to-talk switch	MM-280 or MM-281
Signal generator	^• 0.5 to 99.3 MHz, 0- to 1000-μV output; 400-Hz 30%-modulated AM and CW outputs	Hewlett-Packard 8640B (2 rcquired)
Rf fuseholder	50-ohm coaxial rf fusc element, 1/16 A	Hewlett-Packard 11509A with 2110-0026 fuse element
6-dB attenuator	50-ohm, 6-dB, 2-watt	Weinschel 1A6 (2 required)
Distortion analyzer	Distortion levels, in dB mW, of +20 to -40; frequency range of 400 to 1500 Hz.	Hewlett-Packard 331A
Pulse generator	50-Hz rate, 1-µs-wide pulses of 1- to 5-volt amplitude	Interstate Electronics P22
De voltmeter	0 to ±25 V dc	Fluke 8000A
Headphones	8 to 600	AC-2829 or AC-2830
Rf voltmeter	0 to 3 V; 1 to 30 MHz	Boonton 92C with 50-Ω probe
Dc ammeter	0 to 35 A de	Yew 2051
High-power rheostat	0.25 to 3 Ω, 0 to 35 A	Rex Rheostat
Dc power supply	0 to 20 V dc, 1 A	Hewlett-Packard 6264B (2 required)
Dc power supply	+13.5 V, 0 to 25 A	Sorensen SRL-20-25
Vector impedance meter	Phase angles to ±10°, impedance to 70 ohms	Hewlett Packard 4815A
Audio oscillator	300-3000 Hz, 0 to 50 mV	Hewlett Packard 200AB

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ITEM	MINIMUM SPECIFICATIONS	REPRESENTATIVE TYPE
Oscilloscope	5 mV to 2 V/div vertical; 1 µs/ div horizontal; 1-MHz bandwidth	Tektronix 455
Spectrum analyzer		Hewlett-Packard 141T
Rf plug-in		Hewlett-Packard 8553B
If plug-in		Hewlett-Packard 8552B
Variable signal sampler		Bird 4273-020
Power divider		Weinschel 1506A
Rf load	150 W rf, 50-ohm, 2 to 30 MHz	Bird 8329
Power meter	88 watts at 30 MHz	Hewlett-Packard 432B
Rf source	100-watt, 30-MHz	HF-380
Coax jumper		Pn 634-8283-011
20-dB attenuator		Weinschel 9214
Remove keypad (used only if AC-3803 is installed)	2-out-of-8 connected to common, 16 keys. Refer to AC-3803 Control Interface instructions for pad and pin arrangements.

Table 1. Test Equipment and Tools (Cont).

3. TESTING AND TROUBLESHOOTING

3.1 General

The following paragraphs contain information on test setups, performance testing, and troubleshooting.

The minimum performance tests in table 2 provide an operational test on the transceiver. The test and troubleshooting procedures in tables 3 and 4 determine the overall operational quality of the transceiver. The tests in table 2 should be performed upon receipt of the equipment or anytime degradation of performance is suspected. The tests in tables 3 and 4 provide procedures to determine faulty functional areas/components within the transceiver.

3.2 Test Setup

Turn on primary power to the test equipment. Do not turn on power to the transceiver until instructed to do so in the procedures.

Connect the equipment as instructed in the procedures for each test.

3.3 Testing and Troubleshooting Procedures

The testing and troubleshooting procedures listed in tables 2, 3, and 4 may be performed in any sequence, but the steps within each test must be performed in sequence. Each test may be performed as an individual test or as part of an overall system test. For any test that does not meet or exceed the requirements of the NORMAL INDICATION column, follow the directions of the IF INDICATION IS ABNORMAL column.

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
1. Test setup	Caution During receive tests, do not key transceiver by switching in MOX or by any other keying means while signal generator is connected to transceiver rf connector. Keep MIC/CARRIER control turned to maximum cew position. a. Connect signal generator to transceiver rf connector through rf fuscholder and 6-dB attenuator. b. Connect distortion analyzer to AUD OUT connect 600-Ω, 1/2-W resistor from AUD OUT center conductor to ground. c. Set BW SELECTIVITY switch to 2.2 and rotate PBT SELECTIVITY control to align with OPT 2 position (for USB reception). Set RF GAIN control to max cw position. Turn on transceiver power.
2. Receive	a. Tune transceiver to any frequency greater than 1.600 00 MHz. Tune signal generator to 1 kHz higher than transceiver frequency and sot output level to 1 µV. Note All rf signal levels given at the generator output. Rf to the trans- ceiver is attenuated 6 dB.
	b. Observe distortion analyzer and make minor signal generator frequency adjustments to obtain best signal-to- noise ratio. Note ratio. c. Rotate PBT SELECTIVITY control to align with 2.2 position (for LSB reception) and tune signal generator to 1 kHz lower than transceiver frequency.	10 dB or better for any frequency greater than 1.6 MHz	Refer to table 3.
(Cont)	d. Repeat test 2.b to measure LSB snr. c. Rotate PBT SELECTIVITY control to align with OPT 1 position (for CW reception) and tune signal generator to transceiver frequency.	Same as test 2,b,	Same as test 2.b.

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
2. (Cont)	f. Listen to speaker output. (Adjust RF GAIN control to desired level.)	800-Hz tone (Any variation from 800 Hz will be caused by mismatch between signal generator and transceiver frequency.)	Refer to table 3.
	g. Depress SPOT pushbutton and listen to speaker output. Release SPOT pushbutton.	800-Hz tone in addition to tone heard in step f. (If signal generator and transceiver are on identical frequencies, both tones should be 800 Hz.)	Refer to table 2 test 5.d., and figure 1.
	h. Switch BW SELECTIVITY switch through all positions having installed filters. Note speaker output.	Signal present for each installed- filter position.	Refer to table 3.
	i. Adjust signal generator output for 3-μV, 1-kHz, 80% AM modulation. Set MODE to AM RCV, BW SELECTIVITY switch to 8.0, and PBT SELECTIVITY control to align with OPT 1 position. Note speaker output.	1-kHz AM signal is heard.	Refer to table 3.
3. Frequency control switches	a. Depress each of the tuning increment switches ( , , ) and rotate tuning knob to step associated display digits through entire range.	Digits increase in value with cw rotation of tuning knob and decrease in value with ccw rotation through entire range of associated display digits.	Refer to table 3,
	b. Depress LOCK switch and rotate tuning knob. Note display.	Display digits do not change as knob is rotated.	Check LOCK switch A10S6C.
	c. Release LOCK switch (to out position) by pressing in any of the tuning increment switches.
4. VFO control switches	a. Set VFO switch to A. Note displayed frequency and depress SYNC switch.
	b. Set VFO switch to B and note displayed frequency.	Displayed frequency is same as that noted for VFO A.	Check VFO select switch A10S3 and receiver-exciter A3.
(Cont)	e. Rotate tuning knob to change frequency of VFO B. Note frequency.

·-------------------------------------

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
4. (Cont)	d. Set VFO switch to A and note displayed frequency.	Displayed frequency is same as that previously noted for VFO A.	Same as test 4.b.
	e. Set VFO switch to RA-TB and note displayed frequency.	Displayed frequency doesn't change.	Same as test 4.d.
	f. Set VFO switch to RB-TA and note displayed frequency.	Displayed frequency is same as that noted in step c.	Same as test 4.d.
5. Transmit	a. Disconnect attenuator and signal generator from rf connector. Connect power meter and dummy load to rf connector.
	b. Set MIC/CARRIER control to max cew position. Set MODE switch to CW, VFO switch to A, and tune to any frequency within the Amateur Radio Service bands. Switch in MOX and rotate MIC/CARRIER control cw to max position while observing power meter.	In max ccw position of MIC/CARRIER control, power output is zero. Increasing control position cw increases power output to 90 watts or greater. Power automatically reduces to approximately 60 watts after about 10 seconds if optional AC-2808 Blower is not installed.	Refer to table 3.
	c. Rotate METER switch through all positions and note readings.		Same as test 5.b.
	(1) ALC	Upscale
	(2) VC	Approximately 14-V
	(3) PF	Same as power meter readings
	(4) PR	0
	d. Note speaker output.	800 Hz (Sidetone frequency may be internally adjusted over limited frequency range.)	Adjust A3R616 sidetone level for proper frequency. Refer to figure 1.
(Cont)	e. Note displayed frequency, then depress SYNC switch. (Frequency will be stored in VFO B.) Tune to different frequency within Amateur Radio Service band. (This is new VFO A frequency.)

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
5. (Cont)	f. Set VFO to RA-TB and note frequency display.	VFO B frequency	Check VFO select switch A10S3 and receiver-exciter A3.
	g. Switch out MOX and note frequency display.	VFO A frequency	Same as test 5.f.
	h. Set VFO to RB-TA and note frequency display.	VFO B frequency	Same as test 5.f.
	i. Switch in MOX and note frequency display.	VFO A frequency	Check MOX function switch A10S7 and receiver-exciter A3.
	j. Switch out MOX.
	k. Connect CW key to KEY jack and switch in VOX. Set CW DELAY control to max ccw position. Momentarily close CW key and note power meter.	Meter indicates rf output while key is closed and no rf when key is open.	Refer to table 3.
	Note
	VOX GAIN control must be increased to position where continuous rf output is developed when key is closed.	, , ,
	Set CW DELAY control to max ew position. Momentarily close CW key and note power meter. (After test, readjust CW DELAY control for delay desired.)	Motor indicates rf output while key is closed. For approximately 3 seconds after key is opened, the radio remains in transmit, then switches to receive.	Same as test 5.k.
	m. Disconnect CW key. Connect micro- phone to MIC jack. Set METER switch to ALC and MODE switch to USB. Set MIC/CARRIER control to max ccw position.
	n. Whistle steady tone into microphone while adjusting MIC/CARRIER control cw to obtain ALC reading of approximately S9. Note rf output at this meter indication.	80 to 100 W	Same as test 5.k.
(Cont)	o. Switch MODE switch to LSB and repeat steps m and n to check lower sideband operation.	80 to 100 W	Same as test 5.k.

	1

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
5. (Cont)	p. Set SSB DELAY control to max ccw position. Speak into microphone to key transmitter. Stop speaking and note time required for transceiver to switch back to receive.	Delay of not over 0.5 second	Same as test 5.k.
	q. Set SSB DE LAY control to max cw position. Speak into microphone to key transmitter. Stop speaking and note time required for transceiver to switch back to receive. (After test, readjust SSB DE LAY control for delay desired.)	Approximately 3 seconds	Same as test 5.k.
	r. Disconnect dummy load and power meter. Connect 60-dB power attenuator to rf connector and frequency meter to attenuator.
	s. Switch in MOX. Note transceiver fre- quency and frequency counter displays.	Both frequencies are the same.	Check MOX function switch A10S7 and receiver-exciter A3.
			,

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
1. Initial setup	a. Remove dust cover from transceiver.
	b. Connect transceiver to primary power source.
	c. Turn on power switch.
2. Power supply	a. Measure voltage between A9A1TP5 (+) and gnd (-).	+15 to +20 V, unregulated	Refer to table 4.
	b. Measure voltage between A9A1TP3 or TP6 (+) and gnd (-).	+14 ±0.7 V	Adjust A9A1R23; refer to table 4.
	c. Measure voltage between A9A1TP2 (+) and gnd (-).	+9 ±0.1 V	Adjust A9A1R12; refer to table 4.
	d. Measure voltage between A9A1TP1 (+) and gnd (-).	+5,1 ±0.05 V	Adjust A9A1R14; refer to table 4.
	e. Measure voltage between fccdthrough capacitor A9A2C5 (+) and gnd (-). (+ term has bypass cap.)	+24.5 +2.8, -3 V	Adjust A9A2R3; refer to table 4.
3. Oscillator A7	a. Using high-impedance probe on rf voltmeter, measure signal level at A7P1.	400 mV rms, or greater	Refer to paragraph 4.2; if ineffective, then refer to oscillator A7 instructions.
	b. Connect frequency counter to A7P1 and measure frequency.	39.600 00 MHz ±5 Hz	Refer to oscillator A7 instructions.
	c. Disconnect A7P2 from A3J10. Connect rf voltmeter through 50-Ω adapter to A7P2. Depress SPOT pushbutton and measure signal level. Release SPOT pushbutton.	10 mV rms or greater	Refer to oscillator A7 instructions.
	d. Connect frequency counter to A7P2. Depress SPOT pushbutton. Release SPOT pushbutton.	455 kHz ±15 Hz	Refer to oscillator A7 instructions,
	e. Reconnect A7P2 to A3J10.
	f. Connect rf voltmeter through 50-9 adapter to A7P3. Depress SPOT pushbutton and measure signal level. Release SPOT pushbutton.	30 mV rms or greater	Refer to oscillator A7 instructions.
	g. Connect frequency counter to A7P3.	454.2 kHz ±200 Hz	Refer to oscillator instructions,
	h. Reconnect A7P3 to A3J11.
4. Synthesizer A5	a. Set transceiver frequency to 15.000 00 MHz.
(Cont)	b. Disconnect A5A1P1 from A3J2. Connect rf voltmeter through 50-Ω adapter to A5A1P1. Measure signal level.	+17 dB mW or greater	Refer to synthesizer A5 instructions.

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
4. (Cont)	c. Connect frequency counter to A5A1P1 and measure frequency.	54.144 99 MHz ±3 Hz	Refer to synthesizer A5 instructions.
	d. Reconnect A5A1P1 to A3J2.
	e. Momentarily ground A5A2TP2. Measure voltage between A5A2J1-6 (U6A-6) and gnd (-).	Rapid beeping in speaker. Logic 0 at A5A2J1-6 (U6A-6).	Refer to synthesizer A5 instructions and check loss-of-lock signal.
	f. Remove ground from A5A2TP2.
5. Audio outputs	Caution
-	Do not key transceiver by switching in MOX or by any other keying means while signal generator is con- nected to transceiver rf connector.
	a. Connect signal generator to transceiver rf connector through řf fuseholder and 6-dB attenuator.
	b. Connect 600-Ω, 1/2-W resistor between transceiver AUD OUT connector and ground, and also connect distortion analyzer to AUD OUT connector.		, ,
	c. Set transceiver switches/controls as follows:
	MODE: USB
	VFO: A
	AF GAIN: As desired
	RF GAIN: Max cw
	BW: 2.2
	PBT: OPT 2
	AGC: Off-switch out
	NB: Off-switch out
	MOX: Off-switch out
	VOX: Off-switch out
	PROC: Off-switch out
	POWER: On
	Tuning: 15.000 00
(Cont)	d. Adjust signal generator for 15.001-MHz, 10-μV output. Adjust AF GAIN control and note speaker output.	Approx 1-kHz tone hcard with level adjustable by AF GAIN control.	Refer to receiver- exciter A3 instructions.

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TEST	PROCEDURE		NORMAL INDICATION	IF INDICATION IS ABNORMAL
5. (Cont)	e. Connect headphones t PHONES jack, then to jack. Adjust AF GAI connection and note h	o front panel ) rear panel SPKR N control for each eadphones output.	Approx 1-kHz tone heard with level adjustable by AF GAIN control.	Refer to receiver- exciter A3 instructions.
	f. Set reference level or then note signal level AF GAIN control, the	1 distortion analyzer, output and vary n RF GAIN control.	Level does not change with AF GAIN but does with RF GAIN adjustments.	Refer to receiver- exciter A3 instructions.
6. Sensitivity	a. Set RF GAIN control GAIN control as desi: generator output to 1	to max cw, AF red, and signal µV.
	b. Tune transceiver and to MHz frequencics in measure (s+n)/n ratio analyzer each time. signal generator freq ratio.	signal generator adicated and o on distortion Slightly tune uency for best	10 dB or better for cach frequency	Refer to receiver- exciter A3 instructions.
	TRANSCEIVER	SIGNAL GENERATOR
	1.995	1.996
	3,999	4.000		( ·
	9.999	10.000
	19.999	20.000	\|
	29.699	29.700
7. Image rejection	a. Tune transceiver to 2 signal generator to 2 distortion analyzer at reading.	1.000 00 MHz and 1.001 MHz. Record udio voltmeter
	b. Tune signal generator increase output level to voltmeter is same test 7.a.	r to 20.089 MHz and until audio output as recorded in		:
	c. Note increase in sign level from 1 µV.	al generator output	Not less than 70 dB	Refer to receiver- exciter A3 instructions.
	d. Adjust signal generat and 1-µV output. Rec analyzer audio voltmo	or for 21.001 MHz cord distortion eter reading.
	e. Tune signal generator increase output level voltmeter is same as	r to 99.289 MHz and until audio output to in test 7.d.
	f. Note increase in sign level from 1 µV.	al generator output	Not less than 80 dB	Refer to receiver- exciter A3 instructions.

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
8. Ultimate (s+n)/n	a. Tune transceiver to 21.000 00 MHz and switch in AGC.
	b. Adjust signal generator for 21.000 80-MHz, 200-mV output.
	c. Set MODE switch to CW. Press in SPOT pushbutton and slightly adjust signal generator frequency to match 800-Hz SPOT tone.
	d. Note (s+n)/n on distortion analyzer.	30 dB or better	Refer to receiver- exciter A3 instructions.
9. Passband tuning	a. Tune transceiver and signal generator to 21.000 00 MHz. Set MODE switch to CW and PBT SELECTIVITY control to OPT 1 position.
	b. Switch BW SELECTIVITY switch to each position that has filter installed. Note speaker output.	800-Hz tone (re- ceived CW signal) for each BW position having filter installed	Refer to passband tuning A4 and pass- band tuning option A13 instructions.
10. Output power	a. Disconnect any equipment from trans- ceiver rf connector.		ŕ
	b. Connect wattmeter and dummy load (Bird 813T).
	c. Tune transceiver to 1.999 00 MHz and select CW mode. Sct MIC/CARRIER control to max cw position.
	d. Note time and switch in MOX. Measure output power. After power decreases to approximately 50 watts, note time.	Full power is not less than 90 watts. Reduced power occurs in 20 ±10 seconds.	Adjust PA ALC pot for 100 watts. If ineffective, refer to power amplifier A1A1 and receiver-exciter A3 instructions.
	e. Switch out MOX, tune transceiver to listed frequency, switch in MOX, and measure full-power output. Continue for all frequencies listed, switching out MOX before changing frequencies.	Full power is not less than 90 watts for any frequency.	Refer to power amplifier A1A1 and receiver-oxciter A3 instructions.
	3.999 MHz
	7.299 MHz
	14.349 MHz 21 449 MHz
	29.699 MHz

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
11. Output level control	a. Switch out MOX and set MIC/CARRIER control to max ccw position.
	b. Switch in MOX and, while observing power meter, rotate MIC/CARRIER control to max cw position.	Output power increases smoothly from 0 to not less than 90 watts.	Refer to receiver- excitor A3 instructions.
12. Modulation	a. Switch out MOX. Rotate MIC/CARRIER control to max ccw position. Set MODE switch to USB.
	b. Connect audio signal generator to AUD IN jack. Adjust for 1000-Hz, 40-mV input to transceiver.
	c. Switch in MOX and, while observing power meter, rotate MIC/CARRIER control to max cw position.	Output power increases smoothly from 0 to not less than 90 watts.	Refer to receiver- exciter A3 instructions.
	d. Switch out MOX. Disconnect audio signal generator.
13. VOX	a. Connect microphone to MIC jack. Switch in VOX.
	b. Observe power meter and speak into microphone.	Output power varies with voice input.	Refer to receiver- exciter A3 instructions.
	c. Rotate VOX GAIN control counterclock- wise. Speak into microphone in voice loud enough to cause output power indication on power meter.	Note that louder voice level is re- quired to switch in VOX.	Refer to receiver- exciter A3 instructions.
	d. Readjust VOX GAIN control to desired level. Rotate SSB DELAY control to near max ccw position.
	e. Speak into microphone to switch transceiver to transmit, then note time required for switching back to receive.	•
	f. Rotate SSB DELAY control clockwise. Speak into microphone to cause switching to transmit, then note time required for switching back to receive.	Delay between stopping speaking and switching to receive is longer than in test 13.f.	Refer to receiver- exciter A3 instructions.
(Cont)	g. Readjust SSB DELAY control for desired delay time. Rotate ANTI GAIN control to max ccw position. Increase AF GAIN control to near volume used for normal reception.

~_-

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
13. (Cont)	h. Hold microphone to within approximately 10 cm (4 in) of speaker. Note power meter.	Transceiver switches between transmit and receive, as indicated by fluctuating power meter indication.	Same as test 13.f.
	i. Adjust ANTI GAIN control until transceiver just stops switching between receive and transmit.
	Note
	All options may not be installed in the tra form only those tests relating to the insta	ansceiver. Per- alled options.
14. Noise blanker	Caution
option	During this test, do not key the transceiver. The test equipment could be damaged by an rf output.
	a. Connect pulse generator and signal generator in parallel through rf fuse- holder and 6-dB attenuator to trans- ceiver rf connector.
	b. Adjust pulse generator for output of 1 to 5 V, 1-µs-wide pulses, minimum rise and fall time, at 50-Hz rate.
	c. Adjust signal generator for 14.001-MHz, 2-μV output.
	d. Position transceiver PBT switch to OPT 2 and BW SELECTIVITY switch to 2.2. Set RF GAIN control to max cw and AF GAIN control to near midrange (or to a comfortable listening level). Switch out NB. Turn on power and make sure transceiver is tuned to 14.000 MHz.		·
	e. Listen to audio output and switch in NB.	Noise pulses heard until NB switched in; then pulses, if heard, are at reduced level.	Refer to noise blanker A11 instructions.
	f. Turn off and disconnect equipment.
15. Speech processor option	a. Connect dummy load to transceiver rf connector and microphone to MIC jack.
(Cont)	b. Tune transceiver to 14.300 00 set MODE switch to USB, METER switch to ALC, and switch out PROC and switch in MOX.

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
TEST 15. (Cont)	PROCEDURE c. Speak into microphone in normal operating voice and adjust MIC/CARRIER control for S7 to S9 indication on meter. d. Switch in PROC. e. Speak into microphone with same voice level as before and note LED peak indicator on speech processor A12. f. Switch out MOX. g. Turn off and disconnect equipment.	NORMAL INDICATION Indicator just flashes on voice peaks.	IF INDICATION IS ABNORMAL Refer to speech processor A12 instructions.

Page 64

maintenance 523-0772527

TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
1. Initial setup	a. Before connecting primary power, check strapping and fuse F1 for correct values. (Refer to schematic diagram and figure below.) Restrap and refuse, if necessary, for bench primary power.
	FI FI FI FI FI FI FI FI FI FI	AY TAPS OF PWR S BLOCK H 7 TAGE, V AC 10 220 220 230 240 250 6 6 5 2 1 1 3 2 2 1
	b. Connect wattmeter and dummy load to rf output connector J4. Connect CW key and select CW mode.	194-0209-011
	c. Connect and turn on primary power.		,
2. +17-V output	a. Measurc voltage between A9A1 pin 20 (TP5) and gnd (-).	+15 to +20 V unregulated	Check A9T1, C1, CR1/CR2, and A9F2.
3. +14-V output	a. Measure voltage between A9A1 pin 11 (TP6 (end of R24 nearest C14) and gnd (-)).	+14.5 ±0.25 V	Adjust A9A1R23 (volt adjust).
			If adjustments ineffective for low voltage, slowly adjust A9A1R16 (current limit) approx 1/8 turn cw.
			If R16 ineffective, check A9A1C4, A9A1VR2, A9A1U1B, and A9A1Q1.
	b. Connect high-power rheostat and 0- to 30-A ammeter in series. Set rheostat to maximum resistance.
	c. Connect rheostat and ammeter between C4 (+ terminal) and chassis ground for power supply load.
	d. Set A9A1R16 to maximum cw position.
	e. Adjust rheostat for approx 31 A on ammeter, and set A9A1R16 for 30 A on ammeter.		If A9A1R16 adjust- ments ineffective, check A9A1U1A.

Table 4. Power Supply and Frequency Display, Testing and Troubleshooting Procedures.

Page 65

TEST	PROCEDURE	NORMAL, INDICATION	IF INDICATION IS ABNORMAL
4. +9.0-V output	a. Measure voltage between A9A1 TP2 and gnd (-).	+9.0 ±0.1-V	Adjust A9A1R12. If adjustment ineffective, check A9A1U2.
5. +5.1–V output	a. Measure voltage between A9A1 TP1 and gnd (-).	+5.1 ±0.05-V	Adjust A9A1R14. If adjustment ineffective, check A9A1U3 and A9A1VR1.
	b. On front panel A10, adjacent to display card A10A1, measure voltage between PIN 2 and gnd (-).	+5.0 ±0.2-V	Check A10U1.
	c. On card cage, adjacent to A9C1, measure voltage between A9U1-2 and gnd (-).	+5.0 ±0.2-V	Check A9U1.
6. +24-V output	Measure voltage between feedthrough A9A2C5 and gnd (-).	+24 ±2-V	Adjust A9A2R3 for 33.5 ±2 V at A9A2-TP1.
			Check A9A2U1, A9A2Q2, and A9A2VR2.
7. Frequency display	a. Disconnect A3J1 from power amplifier A1A1P1. Connect 6-dB attenuator and frequency counter to A3J1.
	b. Turn on transceiver and press in MOX switch.
	c. Using frequency control switches and tuning knob, step transceiver through entire frequency range, observing display and frequency counter. Note Pressing in [ frequency control switches and rotating tuning knob five turns enables every 100's- and 10's-Hz digit, respectively. Pressing in [ frequency control switch and rotating tuning knob five turns enables every kHz digit. Pressing in [ frequency control switch and rotating tuning knob five turns enables every kHz digit.	Transceiver and frequency counter displays indicate same frequency for 10's-Hz and higher digits.	If transceiver display is different from frequency counter display or if trans- ceiver display digit is faulty, the input digit is faulty; input fixed logic levels on ADRS and BCD input lines on display A10A1 and check suspected component. Replace component not giving proper output.
(Cont)	switch and rotating tuning knob three times enables every MHz digit.

Table 4. Power Supply and Frequency Display, Testing and Troubleshooting Procedures (Cont).

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TEST	PROCEDURE	NORMAL INDICATION	IF INDICATION IS ABNORMAL
7. (Cont)			NoteLogic 1 is+5-V from apower supplyapplied through10-kΩ resistorto each SEGinput andthrough 390-Ω resistorto eachADRS inputrequiringlogic 1 fortest.
			Logic 0 is applied by directly grounding each input requiring logic 0 for test.
			An ADRS input must be provided to check an associated driver and display digit with SEG inputs.
(Cont)			list and apply indi- cated ADRS inputs to enable selected driver and digit. Then apply indi- cated SEG inputs to enable various numbers.

Table 4. Power Supply and Frequency Display, Testing and Troubleshooting Procedures (Cont).

Page 67

TEST	PROCEDURE	PROCEDURE					IF INDICATION IS ABNORMAL
7. (Cont)	DIGIT ENABLED 10's MHz (DS1A) 1's MHz (DS1B) 0.1's MHz (DS2) 10's kHz (DS3A) 1's kHz (DS3B) 0.1's kHz (DS4A)	ADRS (BCD 4 2 J1-5, -7, 0 0 0 0 0 1 0 1 0 1 1 0 1 0	1 -9 0 1 0 1 0 1	L ) L ) L	OUTPUT LOGIC FROM U1-PIN NO 15 = 1, others 14 = 1, others 13 = 1, others 12 = 1, others 11 = 1, others 11 = 1, others	= 0 = 0 = 0 = 0 = 0 = 0
	10's Hz (DS4B) NUMBER DISPLAYED 0 1 2 3 4 5 6 7 8 9 Display blanked	(BCD 8 J1-8, 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0	0 SEC 4 -10, 0 0 0 0 1 1 1 1 0 0 0 thr 1	) \| 3	9 = 1, others = 2 -4, 0 0 1 1 0 0 1 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1	= 0 1) 6 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1
	*10's MHz digit dis d. Switch out MOX power. Reconne	splays 1 or 2 only . Turn off transceiver ect A1A1P1 to A3J1.					:

Table 4. Power Supply and Frequency Display, Testing and Troubleshooting Procedures (Cont).

Page 68

4. ADJUSTMENTS

4.1 Receiver-Exciter Sidetone and Spot Potentiometer Adjustments

Refer to figure 1 for locations of sidetone frequency and level, and spot tone level potentiometers. These potentiometers may be adjusted to the level or frequency desired by the operator.

Caution

Do not make any other adjustments on the receiver-exciter board without the instruc-

tions and test equipment setup given in the receiver-exciter instruction section tables 1 and 2.

4.2 39.6-MHz and 455-kHz Oscillator Adjustments

The oscillator frequencies are adjustable over a limited range. The oscillators do not normally need adjustment; however, trimmer capacitors are readily accessible if adjustment is required. No test equipment is required.

The test for off-frequency operation and corrective adjustment procedures are as follows:

TPA-1683-019

Receiver-Exciter Connectors and Adjustments Locations Figure 1

Page 69

a. Set mode to USB.
b. Set BW to 8.0 and PBT to vertical (OPT 1) position.
c. Tune to radio station WWV at 15.000 00 MHz.
d. Adjust dial frequency for exact zero-beat of station.
e. Note dial frequency offset, if any.
f. Repeat operation for 10.000 00 MHz and 5.000 00 MHz, noting frequency offset.
g. If frequency offset is the same for each frequency, the 455-kHz oscillator needs adjusting. If offsets differ, the 39.6-MHz oscillator needs adjusting.
h. To adjust either oscillator, remove unit dust cover and card cage cover. Lift oscillator A7 part way out of cage. Tune WWV at 15.000 00 MHz. Set dial frequency to 15.000 00 MHz. Adjust the appropriate control for zero beat. (Refer to figure 2 for adjustment locations.)
i. Recheck frequency offsets, as above. If both oscillators are off frequency, these steps may have to be repeated several times. Replace the oscillator and covers when adjustments are completed.

5. DISASSEMBLY/ASSEMBLY

Procedures for removing or replacing circuit cards/ assemblies and chassis mounted components are obvious after mechanical inspection. Refer to parts list for location information.

5.1 Replaceable Fuses and Lamps

a. There are two fuses required for primary power A9F1 and A9F2. A9F1 is located on the rear panel and may be fused for 115 VAC (8 AMP) or 230 VAC

(4 AMP). A9F2 is located under the power strapping cover plate. To replace A9F2, remove dust cover and power strapping cover plate. A9F2 is a 30A fuse for dc operation.

b. There are two fuses, A9A1F1 and A9A1F2, located on the power supply control card. Both are easily accessible once the dust cover is removed; both are 2 A.
c. The panel meter lamps are located at the top rear of the meter on the top rear of the A10 front panel assembly. The lamps used are type 7373, 100 mA, 14 V.

6. REPAIR

Caution

6.1 General

Use standard shop repair practices to remove and replace chassis-mounted components or subassemblies. Make adequate notes to enable restoration of wire location and lead dress to original positions.

Caution

Avoid use of excessive heat when soldering to solid state devices or the circuit board. Otherwise, the devices may be damaged or the copper circuit foil may lift from the board.

Use standard solid state device and circuit card repair techniques to remove and replace components on the circuit cards. The following paragraphs provide special information for handling ESDS devices, and for removing and replacing postcoating on circuit cards.

6.2 Electrostatic Discharge Sensitive Devices Precautions

A static charge is produced by friction between, and separation of, dissimilar materials. Potentials of 1 to 20 kilovolts are commonly generated on the human

Page 70

body or insulated surfaces. Voltages of this magnitude can produce both immediate and latent failure in electrostatic discharge sensitive (ESDS) devices.

Note

Dry weather (relative humidity less than 30 percent) multiplies the accumulation of static charges on a surface. In a low-humidity environment, the handling procedures specified are of greater importance and should be adhered to without exception.

6.2.1 Handling of ESDS Devices

Caution

Do not use nylon or other synthetic material gloves when handling ESDS devices. Excessive static can build up on this type of material. Handle ESDS devices by their case whenever possible. Avoid touching the leads or contacts even though grounded.

The transport of ESDS devices at the component level requires that all device leads be effectively shorted together. This can be accomplished by one of the following methods.

a. Insert device in high-density conductive foam.
b. Insert device in aluminum foil-lined individual packages.
c. Insert device in a dual-in-line carrier tube made of aluminum or specially coated plastic (must be labeled as static charge dissipative).

The label shown below shall be shown on all individual part containers:

This component can be damaged by static electricity. Special handling methods and materials must be utilized.

Antistatic protection is required for ESDS devices from the time they are received until they are terminated in a protective subassembly. If ESDS devices are in subassemblies that do not provide adequate ESDS device protection, they are still vulnerable to static damage.

The transport of circuit board or module subassemblies containing ESDS devices requires that contact with exposed subassemblies be prevented. Conduc-

tive plastic bags, not clear polyvinyl, are well suited to this purpose. After the subassembly containing ESDS devices is installed in the top level unit, normal ESDS devices handling is adequate.

6.2.2 Storage of ESDS Devices

The methods of handling described in paragraph 6.2.1 are acceptable methods of storage.

6.2.3 Testing of Subassemblies Containing ESDS Devices

Observe the following precautions when testing any subassembly containing ESDS devices.

a. Remove power from test fixtures of equipment before inserting/removing any ESDS device or subassembly containing an ESDS device.
b. Ground all test equipment.
c. Apply de source power to ESDS device or subassembly containing an ESDS device before applying any signal voltages.
d. Remove signal voltages from ESDS device or subassembly containing an ESDS device before removing dc source power.
e. Do not make dielectric strength or insulation resistance checks for any ESDS device or subassembly containing an ESDS device.

6.2.4 Replacement of ESDS Devices

Caution

Protective carriers for ESDS devices should be placed on grounded conductive work-station surfaces.

It is recommended that an ionized air blower be used in the work area where personnel are handling ESDS devices and that personnel work in the path of the ionized air. The blower should be operated for 3 minutes before handling an ESDS device so that residual static charges may be removed. In lieu of an ionized air blower, a grounded wrist strap in contact with bare skin can be used.

Warning

If a grounded wrist strap is used, take all necessary precautions to make sure the wrist strap and/or ground lead cannot make contact with any voltage sources in the area of the work station.

Page 71

Obseve the following precautins when replacing an ESDS device.

a. Ground soldering iron tips, special tools, and handtools.
b. Use only uninsulated metal handtools. Place all handtools on conductive work-station surface when they are not in use.
c. Keep leads of ESDS devices in contact with conductive material, except when being installed, to avoid buildup of static charge.
d. Do not install (insert) or remove ESDS devices from circuits with power on. Transient voltages may cause damage.
e. Connect all unused input leads of ESDS device to circuit ground or ESDS device supply, whichever is applicable for logic circuit involved.

Page 72

Rockwell International

parts list

523-0772528-001218

1 August 1982

Pag

Collins Telecommunications Products Division

list of illustrations

Figure

Printed in USA

HF-380

Receiver-Transmitter

1	HF-380 Receiver-Transmitter
2	Chassis A9 10
3	Power Supply Control, Circuit Card A9A1
4	24-Volt Regulator A9A2
5	Front Panel A10
6	Display A10A1

23-0772528-00121

Page 73

1. INTRODUCTION

1.1 General

The purpose of this parts list is for identification, requisition and issuance of parts.

Parts listed meet critical equipment design specification requirements. Use only part numbers specified in this parts list for replacement of parts.

1.2 Group Assembly Parts List

FIG-ITEM Column — Digits preceding the dash refer to figure numbers. Digits following the dash are item numbers assigned in sequence to correspond with item numbers on the illustrations.

PART NO Column — Listed are MIL standard, vendor, or Collins part numbers. Collins part numbering system consists of 10 digits as follows: a 3-digit family number, a 4-digit serial number, and a 3-digit dash number.

INDENT Column — Items are coded 1, 2, 3, etc, to indicate the relationship to the next higher assembly.

DESCRIPTION Column — Listed are the noun name, modifier, descriptive information, federal manufacturer's code, reference designation, attaching part (AP), reference to other figures, and effectivities.

Attaching parts are identified by (AP) following the part or parts they attach.

Effectivities are identified by the following methods: MCN (Manufacturer Control Number) 101 and up; CI (Configuration Identifier) 5-digit number; REV (Revision Identifier) dash (—) denotes original, letter A first change, letter B second change, etc. One of the above identifiers is listed on each chassis and/or replaceable assembly. Service Bulletins are identified by SB 1, SB 2, etc.

UNITS PER ASSY Column — Quantities specified are per item number. Letters AR denote the selection of parts as required. Letters REF refer to an assembly completely assembled on a preceding figure and illustration.

USABLE ON CODE Column — Part variations within a group of equipment are indicated by a letter code (A, B, C, etc). Absence of a code indicates part applies to all models.

1.3 Numerical Index

PART NUMBER Column — Part numbers are listed in alphanumeric sequence.

FIG-ITEM Column — Digits preceding the dash refer to figure numbers. Digits following the dash are item numbers.

TTL REQ Column — Listed is the total quantity of parts or assemblies covered in the Group Assembly Parts List.

1.4 Reference Designation Index

REFERENCE DESIGNATION Column — Reference designations are listed in alphanumeric sequence.

FIG-ITEM Column — Digits preceding the dash refer to figure numbers. Digits following the dash are item numbers.

PART NUMBER Column — Part numbers listed are for items that have reference designations assigned.

1.5 How To Use This Parts List

To locate a part number if the assembly in which the part is used is known, turn to the List of Illustrations and find the page number for the assembly in which the part is used. Locate the part and its index number on the illustration and find the index number on the Group Assembly Parts List page to determine its description and part number.

Page 74

parts list 523-0772528

To locate the illustration for a part if the reference designation is known, refer to the Reference Designation Index and find the symbol; turn to the Group Assembly Parts List and find the figure and index number indicated in the index.

Caution

This equipment contains electrostatic discharge sensitive (ESDS) devices. Special handling methods and materials must be used to prevent equipment damage. Refer to the maintenance section for the equipment before assembly/disassembly or repair is performed. ESDS items are identified in the description column of the parts list by (ESDS).

All supporting parts list illustrations that contain ESDS items are shown with the following symbol.

1.6 Manufacturer's Code, Name, and Address

MFR	MANUFACTURER'S NAME
CODE	AND ADDRESS

A1704 MC DIVISION ELECTRONIC INSTRUMENT AND SPECIALTIES CORP 42 PLEASANT ST STONEHAM MA 02180
00779 AMP INC P 0 BOX 3608 HARRISBURG PA 17105
00853 SANGAMO WESTON INC SANGAMO CAPACITOR DIV SANGAMO RD P 0 BOX 128 PICKENS SC 29671
04713 MOTOROLA INC SEMICONDUCTOR GROUP 5005 E MCDOWELL RD PHOENIX AZ 85008
05277 WESTINGHOUSE ELECTRIC CORP SEMICONDUCTOR DIV HILLS ST YOUNGWOOD PA 15697
05464 INDUSTRIAL ELECTRONIC ENGINEERS INC 7720 Lemona Ave Van Nuys ca 91405

MFR MANUFACTURER'S NAME CODE AND ADDRESS

07263 FAIRCHILD CAMERA AND INSTRUMENT CORP SEMICONDUCTOR DIV SUB OF SCHLUMBERGER LTD NORTH AMERICAN SALES MAIL STOP 14-1053 401 ELLIS ST P O DRAWER 7284 MOUNTAIN VIEW CA 94042
07388 TOROTEL PRODUCTS INC 13402 S 71 HWY GRANDVIEW MO 64030
11237 CTS KEENE INC 3230 RIVERSIDE P O BOX 1977 PASO ROBLES CA 93446
11700 JB ELECTRONIC TRANSFORMERS INC 2300 W ARMITAGE AVE CHICAGO IL 60647
12954 SIEMENS CORP COMPONENTS GROUP 8700 E THOMAS RD P O BOX 1390 SCOTTSDALE AZ 85252
12998 QUALITY NAME PLATE INC MILL ROAD EAST GLASTONBURY CT 06025
13499 ROCKWELL INTERNATIONAL CORP COLLINS TELECOMMUNICATIONS PRODUCTS DIV 855 35TH ST NE P O BOX 728 CEDAR RAPIDS IA 52498
14099 SEMTECH CORP 652 MITCHELL ROAD Newbury Park CA 91320
14433 ITT SEMICONDUCTOR DIV WEST PALM BEACH FL
15686 DISC INSTRUMENTS INC 102 E BAKER ST COSTA MESA CA 92626
24226 GOWANDA ELECTRONICS CORP NO I INDUSTRIAL PL GOWANDA NY 14070
- 4444 GENERAL SEMICONDUCTOR INDUSTRIES INC 2001 W 10TH PLACE P O BOX 3078 TEMPE AZ 85281
27014 NATIONAL SEMICONDUCTOR CORP 2900 SEMICONDUCTOR DR SANTA CLARA CA 95051
27193 EATON CORP SPECIALTY PRODUCTS OPERATIONS 4201 N 27TH ST MILWAUKEE WI 53216

Page 75

MFR CODE	MANUFACTURER'S NAME AND ADDRESS
31918	ITT SCHADOW INC 8081 WALLACE RD EDEN PRAIRIE MN 55343
32171	MODUTEC INC 18 MARSHALL ST NORWALK CT 06854
33095	SPECTRUM CONTROL INC 8061 Avonia RD Fairview PA 16415
34263	CTS OF BROWNSVILLE INC 1100 ROOSEVELT ST BROWNSVILLE TX 78520
49671	RCA CORP 30 Rockefeller plaza New York NY 10020
49956	RAYTHEON CO Executive offices 141 Spring St Lexington MA 02173
50508	MAGNETIC COMPONENTS INC 9520 AINSLIE ST Schiller Park IL 60176
52072	CIRCUIT ASSEMBLY CORP 3169 REDHILL AVE COSTA MESA CA 92626
55009	ELMO SEMICONDUCTOR CORP 5300 Santa Monica Blvd Los Angeles ca 90029
56289	SPRAGUE ELECTRIC CO 87 Marshall St North Adams Ma 01247
71400	MCGRAW-EDISON CO Bussmann MFG DIV 502 Earth City Plaza P Ö Box 14460 St Louis MO 63178
71450	CTS CORP 905 n West Blvd Elkhart in 46514
71468	ITT CANNON ELECTRIC DIV OF INTERNATIONAL TELEPHONE AND Telegraph Corp 10550 Talbert Ave P O Box 8040 Fountain Valley CA 92708

71590 GLOBE-UNION INC CENTRALAB ELECTRONICS DIV HWY 20 W P O BOX 858 FORT DODGE IA 50501
71744 GENERAL INSTRUMENT CORP LAMP DIV 4433 N RAVENS WOOD AVE CHICAGO IL 60640

MFR MANUFACTURER'S NAME CODE AND ADDRESS
71785 TRW INC TRW CINCH CONNECTORS DIV 1501 MORSE AVE ELK GROVE VILLAGE IL 60007
75915 LITTELFUSE INC 800 E NORTHWEST HWY DES PLAINES IL 60016
76854 OAK SWITCH SYSTEMS INC SUB OF OAK TECHNOLOGY INC 100 S MAIN ST P O BOX 517 CRYSTAL LAKE IL 60014

77250 ALLIED PRODUCTS CORP PHEOLL MFG CO DIV 5700 W ROOSEVELT RD CHICAGO IL 60650

78488 STACKPOLE CARBON CO ST MARYS PA 15857
81349 MILITARY SPECIFICATIONS

82389 SWITCHCRAFT INC SUB OF RAYTHEON CO 5555 N ELSTRON AVE CHICAGO IL 60630

86797 ROGAN CORP 3455 WOODHEAD DR NORTHBROOK IL 60062
91637 DALE ELECTRONICS INC P O BOX 609 COLUMBUS NE 68601
96214 TEXAS INSTRUMENTS INC EQUIPMENT GROUP 13500 N CENTRAL EXPY P 0 BOX 226015 DALLAS TX 75266
96906 MILITARY STANDARD
98291 SEALECTRO CORP 225 HOYT MAMARONECK NY 10544
99392 MEPCO/ELECTRA INC ROXBORO DIV INDUSTRIAL DR P O BOX 1223 ROXBORO NC 27573

1.7 Reference Designation Prefixes

The following prefixes have been assigned in this manual:

PREFIX	UNIT PART NUMBER	FIG- ITEM
A9	641-7103-001	2
A9A1	638-6825-001	3

Page 76

PREFIX	UNIT PART NUMBER	FIG- ITEM

A9A2	638-6275-001	4
A9A2	638-6275-002	4
A10	641-7104-001	5
A10A1	638-6931-001	6

1.8 Configuration Identifiers

The following CI's/REV LTR's were used in compiling data for this manual:

CI/ REV LTR	UNIT PART NUMBER	FIG- ITEM
М	641-7103-001	2
К	638-6825-001	3
G	638-6275-001	4
G	638-6275-002	4
Ν	641-7104-001	5
G	638-6931-001	6

Page 77

HF-380 Receiver-Transmitter Figure 1 (Sheet 1 of 3)

Page 78

DETAIL A

TPA-2149-039

HF-380 Receiver-Transmitter Figure 1 (Sheet 2)

Page 79

TPA-2149-039

HF-380 Receiver-Transmitter Figure 1 (Sheet 3)

Page 80

	г Т.	-
FIG- ITEM	PART NO	DESCRIPTION	UNITS USABLE PER ON ASSY CODE
1-	622-3580-001	RECEIVER- TRANSMITTER HF-380	1
- 1	641-3700-001	PLATE,MOD	1
2	642-0028-000	PLATE, IDENT	1
3	641-7115-001	2 INSERT, IDENT	1
4	634-5903-003	PLATE, COVER (EFF TO REV LTR L)	1
5	641-7097-001	2 COVER,CARD CAGE	1
6	638-6929-002	CONTROL A8 (EFF TO REV LTR L)	1
6	638-6929-004	2 CONTROL A8 (EFF REV LTR L)	1
/	638-6912-002	2 PASS BANU TUNING A4	1
8	638~6910~001	UDUILLAIUR A/ Dedont dance air (see etc e)	1
7	641-789-081	SYNTHESIZED AS	1
10	641-7099-002	SYNTHESIZER AS	ĩ
11	638-6916-002	S OUTPUT LOOP ASAL	ī
12	638-6920-001	S VARIABLE LOOP A5A2	1
13	641-7103-001	CHASSIS A9 (SEE FIG 2)	1
14	638-6914-002	2 PASS BAND TUNING A13	1
15	641-7132-001	2 LOW PASS FILTER A2	1
16	634-8481-003	2 POWER AMPLIFIER A1	1
17	634-5943-001	2 COVER ASSY, STATIONARY	1
18	641-7140-001	2 SHIELD,COVER	1
19	332-14-04-022	2 TERMINAL BOARD (71785) 306-9032-000 TB1	1
20	CM04ED330J03	2 CAPACITOR,FXD MICA DIEL, 33PF, 5%, 500V (81349) 912-3848-000 C2 54015700 FVD MICA DIEL 2005 FV F00V (81349)	1
21		2 CAPACITOR, FXU HICA DIEL, 62PF, 5X, 5000 (61549) 912-3873-000 C3	Ţ
22	CM0/ED330 103	2 CUIL,RF U.270H (90900) 240-2010-000 C2 2 CADACTING EVEN MICA DIEL 33DE, EV. 500V (81360)	1
23	ME18130-1	912-3848-000 Cl	, 1
24	CM04ED101 103	CAPACITAD, FYD MICA DIFL, IAAPF, 57, 500V (81349)	1
25	611041 0101000	912-3879-000 C4	-
26	CM05FD151J03	2 CAPACITOR,FXD MICA DIEL, 150PF, 5%, 500V (81349) 912-2828-000 C5	1
27	638-6908-002	2 RECEIVER/EXCITER A3	1
27A	646-5802-001	2 AUDIO LOW PASS FILTER A15	1
27B	647-2924-001	2 BRACKET, MOUNTING	1
	P313-0140-000	2 NUT, PLAIN, HEX NP BRS, 6-32 (77250) 313-0140-000 (AP)	1
	MS35338-98	2 WASHER, SPRING CD PL BRZ, 0.141 1D X 0.250 0D (96906) 310-0096-000 (AP)	1
	NSE1057-26	2 SUREW,MACH SSI, 6-32 X 3/6 (96906) 343-0167-000 (AP) 2 Senden Mach Set (4-32 X 3/6 (86066) 363-0167-000 (AD)	1
28	641-7166-001	CARLENDARD GAGE (NON-DEPATRARIE TTEM)	1
29	641-7167-001	CABLE, SMO (NON-REPATRABLE ITEM)	ī
30	641-7173-001	2 CABLE, BAND PASS TUNING (NON-REPAIRABLE ITEM)	1
31	641-7169-001	2 CABLE, LOW PASS FILTER (NON-REPAIRABLE ITEM)	1
32	641-7168-001	2 CABLE,CONTROL DISPLAY (NON-REPAIRABLE ITEM)	1
33	641-7170-001	2 CABLE,REAR PANEL (NON-REPAIRABLE ITEM)	1
34	641-7123-001	2 CABLE, SPECIAL PURPOSE	1
35	641-7123-002	2 CABLE, SPECIAL PURPOSE	1
36	641-7123-003		1
57	641-/125-004 441-7197.005	CLABLE JOPEULAL PURPUSE	L J
סכ מד	071-/123-009 661-7123-006	CABLESSFECTAL PURPOSE	1
40	641-7123-007	2 CABLE SPECIAL PURPOSE	ĩ
404	641-7123-008	2 CABLE, SPECIAL PURPOSE	ī
41	641-7100-001	2 COAX CABLE, BAND PASS FILTER	1
42	642-1018-023	3 MARKER, CABLE	1
43	642-1018-019	3 MARKER,CABLE	1
44	641-7100-002	2 COAX CABLE, BAND PASS FILTER	1
45	642-1018-026	3 MARKER, CABLE	1
46	642-1018-020	3 MARKER, CABLE	1
47	641-7100-008	Z LUAX LABLE, OFTL FILTER	T

Page 81

FIG- ITEM	PART NO	INDENT	DESCRIPTION	UNITS PER ASSY
1-48	642-1018-024	7	MARKER . CABI F	۱
7-40	642-1018-028	3	MARKER.CABLE	î
50	641-7100-017	ž	COAX CABLE, OPTL FILTER	ĩ
51	642-1018-025	3	MARKER,CABLE	ī
52	642-1018-027	3	MARKER, CABLE	1
53	226286-2	3	CONNECTOR, RCPT (00779) 357-0067-010	8
54	641-7100-007	2	COAX CABLE, RCV IN/RE	1
55	642-1018-022	- 3	MARKER,CABLE	1
56	57~1559	3	CORE,FERRITE (78488) 288-1337-050	1
57	226286-2	3	CONNECTOR, RCPT (00779) 357-0067-010	1
58	641-7100-014	2	COAX CABLE, ANT RELAY NO.2	1
59	52-307-3188	3	CONNECTOR, PLUG ELEC (98291) 357-7207-010	1
60	642-1018-030	3	MARKER CABLE	1
61	641-7100-015	2	COAX CABLE, XVERTER/RE	1
62	52-307-3188	3	CONNECTOR, PLUG ELEC (98291) 357-7207-010	1
63	642-1018-021	3	MARKER, CABLE	1
64	641-7100-016	2	COAX CABLE, RCV IN/ANT FILTER	1
65	634-8498-001	2	CABLE, POWER	1
66	641-7181-001	2	KIT, CUSTOMER INSTL	1
67	280-2745-020	2	LABEL, PRESS SENS (ESDS) (12998)	1
68	280-3821-020	2	LABEL, PRESS SENS (12998)	1
69	280-3821-01 0	2	LABEL, PRESS SENS (12998)	1
70	M24308/26-1	2	SCREW,ASMBLD CLIP (81349) 371-0062-000	1
71	DBM-25P	2	CONNECTOR, RCPT ELEC (71468) 371-0170-000	1
72	D20419-18	2	SCREW LOCK ASSY (71468) 371-0040-020	1
73	DB110963-3	2	SHELL, JUNCTION (71468) 371-0392-030	1

~ _ _ .

Page 82

(VR2) 24 (R1) 25 37 (R1) 25 37 (R1) 25

TPA-1927-027

Chassis A9 Figure 2 (Sheet 1 of 2)

Page 83

Chassis A9 Figure 2 (Sheet 2)

Page 84

FIG- ITEM	PART NO	INDENT	DESCRIPTION	UNITS PER ASSY
2-	641-7103-001	٦	CHASSIS AS (SEE ETG 1-13 FOD MUA)	DEE
- 1	641-7097-002	2	COVED. CADD	REF
2	641-7125-001	2	PADTITION-NO 1	1
3	641-7143-001	2	PARTITION	Ţ
ŭ	641-7175-001	5		1
5	641-7176-001	2		1
ž	641-7177-001	2	PARTITION-NO.3	÷
7	641-7178-001	2		Ţ
, 8	641-7143-002	2		, L
q	641-7124-001	2		Ţ
10	634-5941-002	2	STDAD, CDOIND	1
11	115058-06	2	MOUNTING DINGS (00853) 130-0135-000
12	3120BE123U0258P	2	CAPACITOR, FXD AL ELCTLT, 12,000UF, P75XM10%, 25VDC	1
13	1N1186	2	SEMICOND DEVICE (05277) 353-4678-060 A0001	,
14	115058-01	2	MOUNTING DINGS (00853) 139-0130-000	1
15	3120GE723U025DP	2	CAPACITOR, FXD AL ELCTLT, 72,000UF, P75XM10%, 25VDC	1
16	634-5941-001	2	STRAP.SPOLND	,
17	350720-1	2	HOUSTNG, CONN (00779) 372-0064-150 4002	, ,
18	350715-1	2	HOUSING, CONN (00779) 372-0064-130 A903	1
19	350782-1	2	HOUSING, CONN (00779) 372-0064-160 49/12	1
20	350781-1	2	HOUSING, CONN (00779) 372-0064-100 A9312	1
21	1N1186	2	SEMICOND DEVICE (05277) 353-6678-060 A0002	1
22	780500	2	TNTEGRATED CIDCUIT (07263) 351-1120-010 AQUI	1
224	CK068X334K	2	CAPACITOR, FYD CED DIEL, O 33UE, 107 EOVDC (A1360)	1
23	60-12240	۔ ،	913-5019-500 A9C19 (EFF REV LTR H)
23	1040715	د	REV LTR J	, 1 -
23	1248315	2	TRANSFORMER, POWER (11700) 662-0650-020 A9T1 (EFF REV LTR J)	1
24		2	SEMICOND DEVICE (24444) 353-0325-010 A9VR2	1
25	HC15-3-50HM55PC1	2	RESISTOR, FXD 3.5 OHMS, 5%, 14W (91637) 747-0715-000	1
26	RS5R040-5 PCT	2	RESISTOR,FXD 0.04 OHMS, 5%, 6.5W (91637) 747-1992-070 A9R4	1
27	RS5R040-5PCT	2	RESISTOR, FXD 0.04 OHMS, 5%, 6.5W (91637) 747-1992-070 A9R3	1
28	RS5R040-5PCT	2	RESISTOR, FXD 0.04 OHMS, 5%, 6.5W (91637) 747-1992-070 A9R2	l
29	634-8340-001	2	BRACKET,ANGLE	1
30	332-14-04-022	2	TERMINAL BOARD (71785) 306-9032-000 A9TB2	ī
31	1N5550	2	SEMICOND DEVICE (14099) 353-3718-040 A9CR3	ī
32	332-14-04-022	2	TERMINAL BOARD (71785) 306-9032-000 A9TB3	1
33	RS5R015-1PCT	2	RESISTOR,FXD 0.015 OHMS, 1%, 6.5W (91637) 747-1992-040 A9R5	1
34	RS5R015-1PCT	2	RESISTOR,FXD 0.015 OHMS, 1%, 6.5W (91637) 747-1992-040 A9R6	1
35	332-14-04-022	2	TERMINAL BOARD (71785) 306-9032-000 A9TB4	1
36	500-8921-001	2	POST	ī
37	P015-0553-000	2	POST,MTG,RES (77250) 015-0553-000	ī
38	634-5908-001	2	PLATE, SAFETY	ī
39	280-1368-560	2	LABEL,PRESS SEN (12998)	ĩ
40	AGC32-30	2	FUSE,CRTG (71400) 264-0734-000 A9F2	ī
41	350-267	2	FUSEHOLDER (75915) 265-1114-000 A9XF2	ī
42	ABC8	2	FUSE,CRTG (71400) 264-0395-000 A9F1	ī
43	345001	2	FUSEHOLDER, PNL (75915) 265-0017-010 A9XF1	ī
44	200H62N472MAA	2	CAPACITOR,FXD CER DIEL, 4700PF, 20%, 1000V (71590) 913-3923-000 A9C2	ī
45	2DDH62N472MAA	2	CAPACITUR,FXD CER DIEL, 4700PF, 20%, 1000V (71590) 913-3923-000 A9C3	I
46	P406AB	2	CONNECTOR, RCPT ELEC (71785) 365-0068-020 A9J1	1
47	17-7	2	TERMINAL STRIP (71785) 306-0037-000 A9TB1	ī

Page 85

FIG- ITEM	PART NO		UNITS USABLE PER ON ASSY CODE
2-48	540-9221-003	2 POST,ELEC-MECH	2
49	1N3998RA	2 SEMICOND DEVICE (04713) 353-3648-040 A9VR1	1
50	634-8281-001	2 BRACKET,DIODE	1
51	634-5955-001	2 COVER, CHASSIS	1
52	199D474X0035AB1	2 CAPACITOR,FXD ELCTLT, 0.47UF, 20%, 35V (56289) 184-9102-330 A9C15	1
52 A	CK06BX334K	2 CAPACITOR,FXD CER DIEL, 0.33UF, 10%, 50VDC (81349) 913-5019-500 A9C18 (EFF REV LTR H)	1
53	1N5359B	2 SEMICOND DEVICE (04713) 353-6550-270 A9VR3	1
54	54-794-010-102P	2 CAPACITOR,FXD CER DIEL, 1000PF, GMV, 500V (33095) 913-1298-020 A9C5	1
55	54-794-010-102P	2 CAPACITOR,FXD CER DIEL, 1000PF, GMV, 500V (33095) 913-1298-020 A9C6	1
56	54-794-010-102P	2 CAPACITOR,FXD CER DIEL, 1000PF, GMV, 500V (33095) 913-1298-020 A9C7	1
57	54-794-010-102P	2 CAPACITOR,FXD CER DIEL, 1000PF, GMV, 500V (33095) 913-1298-020 A9C8	1
58	638-6275-001	2 24 VOLT REGULATOR A9A2 (EFF TO REV LTR G)(SEE FIG 4)	1
58	638-6275-002	2 24 VOLT REGULATOR A9A2 (EFF REV LTR G)(SEE FIG 4)	1
59	634-5952-001	2 CHASSIS	1
60	LM317T	2 INTEGRATED CIRCUIT (27014) 351-1271-010 A9U3	1
61	EM317T	2 INTEGRATED CIRCUIT (27014) 351-1271-010 A9U2	1
62	TTP31A	2 TRANSISTOR (49671) 352-1156-010 A991	1
63	638-6825-001	2 POWER SUPPLY CONTROL A9A1 (SEE FIG 3)	1
64	13E	2 JACK, TEL (82389) 360-0136-000 A9J11	ī
65	M641-12-1	2 JACK+TEL (81349) 358-0014-000 A9J10	1
66	3501FP	2 PHONO-JACK (82389) 360-0148-000 A9J2	8
67	292075010308050	2 CAPACITOR, FXD CER DIEL, 0.01UF, M20%P80%, 50V (56289) 913-3331-020 A9C14	1
68	3501FP	2 PHOND-JACK (82389) 360-0148-000 A9J9	1
69	292015010308050	2 CAPACITOR, FXD CER DIEL, 0.01UF, M20%P80%, 50V (56289) 913-3331-020 A9C13	1
70	3501FP	2 PHONO-JACK (82389) 360-0148-000 A9J5	1
71	3501FP	2 PHONO-JACK (82389) 360-0148-000 A9J8	1
72	292015010208050	2 CAPACITOR, FXD CER DIEL, 0.001UF, M20%P80%, 50V (56289) 913-3331-010 A9C11	1
73	3501FP	2 PHONO-JACK (82389) 360-0148-000 A9J4	1
74	3501FP	2 PHOND-JACK (82389) 360-0148-000 A9J7	1
75	CK63AW103M	2 CAPACITOR,FXD CER DIEL, 10000PF, 20%, 500V (81349) 913-1188-000 A9C12	1
76	3501FP	2 PHONO-JACK (82389) 360-0148-000 A9J3	1
77	292015010308050	2 CAPACITOR,FXD CER DIEL, 0.01UF,M20%P80%,50V (56289) 913-3331-020 A9C10	1
78	3501FP	2 PHOND-JACK (82389) 360-0148-000 A9J6	1
79	292015010208050	2 CAPACITOR,FXD CER DIEL, 0.001UF,M20%P80%,50V (56289) 913-3331-010 A9C9	1
80	641-7162-001	2 CABLE, POWER SUPPLY	1

Page 86

Pow

Page 87

Power Supply Control, Circuit Card A9A1 Figure 3

Page 88

FIG- ITEM	PART NO			UNITS PER ASSY
3- 1	638-6825-001 RCR32G152KS	1 2	POWER SUPPLY CONTROL A9A1 (SEE FIG 2-63 FOR NHA) RESISTOR,FXD CMPSN, 1.5K, 10%, 1W (81349)	REF 1
2 3	1N4002 RW69V821	2 2	745-3359-000 A9A1R20 SEMICOND DEVICE (14433) 353-6442-020 A9A1CR1 Resistor,FXD WW, 820.0 OHMS, 5%, 3W (81349)	1
4	RCR07G471KS	2	747-5358-000 A9A1R1 RESISTOR,FXD CMPSN, 470 OHMS, 10%, 1/4W (81349)	1
5	X201R251B	2	745-0737-000 A9A1R3 RESISTOR,VAR 250 OHMS, 30%, 0.25 TO O W (71450)	1
5	101T500R0	2	376-0274-020 A9ALRI6 (EFF TO REV LIR J) RESISTOR, VAR 500 OHMS, 20%, 1/2W (91637)	1
6	RN5501401F	2	RESISTOR, FXD FILM, 1.40K, 1%, 1/8W (81349)	1
7	292CX7R102M050B	2	CAPACITOR, FXD CER DIEL, 0.001UF, P802M202, 50VDC	l
8	292CY5U104Z050C	2	CAPACITOR,FXD CER DIEL, 0.10UF, P80%M20%, 50VDC	l
9	X201R102B	2	RESISTOR,VAR 1K, 30%, 0.25 TO D W (71450)	1
9	101710000	2	RESISTOR, VAR 1K, 20%, 1/2W (91637) 382-0038-040	1
10	RW69V1R5	2	RESISTOR,FXD WW, 1.5 OHMS, 5%, 3W (81349) 747-5363-000 A941R31	1
11	RCR42G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 2W (81349) 745-5628-000 A9A1R24	1
12	240-0879-010	2	COTI DE 1910 (26226) 404113	٦
13	500D337G025DF5	ź	CAPACITOR, FXD AL ELCTLT, 330UF, P75XM10%, 25V	1
14	X201R251B	2	RESISTOR, VAR 250 OHMS, 30%, 0.25 TO O W (71450)	1
14	101T200R0	2	RESISTOR, VAR 200 OHMS, 20%, 1/2W (91637)	1
15	X201R251B	2	RESISTOR, VAR 250 OHMS, 30%, 0.25 TO O W (71450)	1
15	1017200R0	2	RESISTOR, VAR 200 OHMS, 20%, 1/2W (91637)	1
14	1000000 0		502-0050-020 A7AIR14 (EF) REV EIR 5)
16	AGC250-2	~	PUSE (CARTRIDGE (71400) 264-0725-000 A9AIFI	1
17	102071	2	CLIP,ELEC (75915) 265-1041-010 XFI (EFF REV L(R J)	T
18	AGC250-2	2	FUSE,CARTRIDGE (71400) 264-0723-000 A9A1F2	1
19	102071	2	CLIP,ELEC (75915) 265-1041-010 XF2 (EFF REV LTR J)	1
20	500D336G025BB5	2	CAPACITOR,FXD AL ELCTLT, 33UF, P75%M10%, 25V (56289) 183-1510-020 A9A1C6	1
21	1990475X0035081	2	CAPACITOR,FXD TNTLM ELCTLT, 4.7UF, 20%, 35V (56289) 184-9102-390 A9A1C10	1
22	1990475X0035081	2	CAPACITOR,FXD TNTLM ELCTLT, 4.7UF, 20%, 35V (56289) 184-9102-390 A9AIC11	1
23	RN5507500F	2	RESISTOR,FXD FILM, 750 OHMS, 1%, 1/8W (81349) 705-0990-000 A9A1R28	1
24	RN55D2870F	2	RESISTOR,FXD FILM, 287 OHMS, 1%, 1/8W (81349) 705-0970-000 A9AIR13	1
25	199D475X0035DB1	2	CAPACITOR, FXD TNTLM ELCTLT, 4.7UF, 20%, 35V (56289) 184-9102-390 A9A1C7	1
26	RN5507500F	2	RESISTOR,FXD FILM, 750 OHMS, 1%, 1/8W (81349) 705-0990-000 A9A1R27	1
27	RN5501400F	2	RESISTOR,FXD FILM, 140 OHMS, 1%, 1/8W (81349) 705-0955-000 A9A1R11	1
28	292CY5U104Z050C	2	CAPACITOR, FXD CER DIEL, 0.10UF, P80%M20%, 50VDC (56289) 913-3331-030 A9A1C9	1
29	199D475X0035DB1	2	CAPACITOR, FXD TNTLM ELCTLT, 4.7UF, 20%, 35V (56289) 184-9102-390 A9AIC8	1
30	292CY5U104Z050C	2	CAPACITOR, FXD CER DIEL, 0.10UF, P80%M20%, 50VDC (56289) 913-3331-030 A9A1C12	1

Page 89

FIG- ITEM	PART NO	INDENT	DESCRIPTION	UNITS PER ASSY
3-31 32	1N821A RCR42G150KS	2 2	SEMICOND DEVICE (12954) 353-3261-000 A9A1VR1 RESISTOR,FXD CMPSN, 15 OHMS, 10%, 2W (81349)	1 1
33	RN55D3831F	2	RESISTOR, FXD FILM, 3.83K, 1%, 1/8W (81349)	1
34	RN55D5621F	2	RESISTOR, FXD FILM, 5.62K, 1%, 1/8W (81349) 705-1032-000 A9A1R19	l
35	RCR07G104KS	2	RESISTOR, FXD CMPSN, 0.10MEGO, 10%, 1/4W (81349) 745-0821-000 A9AIR8	1
36	199D475X0035DB1	2	CAPACITOR, FXD TNTLM ELCTLT, 4.7UF, 20%, 35V (56289) 184-9102-390 A9A1C3	1
37	MLM358U	2	INTEGRATED CIRCUIT OF AMP (04713) 351-1211-040 494101	1
38	RCR07G101KS	2	RESISTOR, FXD CMPSN, 100 OHMS, 10%, 1/4W (81349) 745-0713-000 A9A1R10	1
39	1N4002	2	SEMICOND DEVICE (14433) 353-6442-020 A9A1CR2	1
40	292CX7R102M0508	2	CAPACITOR, FXD CER DIEL, 0.001UF, P80%M20%, 50VDC (56289) 913-3331-010 A9A1C2	ī
41	RCR07G103KS	5	RESISTOR,FXD CMPSN, 10K, 10%, 1/4W (81349) 745-0785-000 A9A1R6	1
42	1N4617	2	SEMICOND DEVICE (04713) 353-3591-410 A9A1VR4	1
43	RCR20G222KS	2	RESISTOR, FXD CMPSN, 2.2K, 10%, 1/2W (81349) 745-1366-000 A9A1R7	ĩ
44	RW67V470	2	RESISTOR,FXD WW, 47 OHMS, 5%, 6.5W (81349) 747-5493-000 A9A1R4	1
45	292CY5U103Z050B	2	CAPACITOR, FXD CER DIEL, 0.01UF, P80%20%, 50VDC (56289) 913-3331-020 A9A1C15	1
46	RN55D1401F	2	RESISTOR,FXD FILM, 1.40K, 1%, 1/8W (81349) 705-1003-000 A9AIR26	1
47	1N4750A	2	SEMICOND DEVICE (04713) 353-6481-450 A9A1VR2	. 1
48	RN55D6811F	2	RESISTOR,FXD FILM, 6.81K, 1%, 1/8W (81349) 705-1036-000 A9A1R29	1
49	RN55D6811F	2	RESISTOR,FXD FILM, 6.81K, 1%, 1/8W (81349) 705-1036-000 A9A1R30	1
50	RCR07G105KS	2	RESISTOR,FXD CMPSN, IMEGO, 10%, 1/4W (81349) 745-0857-000 A9A1R18	1
51	RN55D2490F	2	RESISTOR,FXD FILM, 249 OHMS, 1%, 1/8W (81349) 705-0967-000 A9AIR15	1
52	292CX7R102M050B	2	CAPACITOR,FXD CER DIEL, 0.001UF, P807M207, 50VDC (56289) 913-3331-010 A9AlC4	1
53	705-0701-000	2	RESISTOR, FXD FILM, 680 OHMS, 1%, 750V (96214) A9A1R2	1
54	292CY5U104Z050C	2	CAPACITOR, FXD CER DIEL, 0.10UF, P807M207, 50VDC (56289) 913-3331-030 A9A1C1	1
55	RCR07G101KS	2	RESISTOR,FXD CMPSN, 100 OHMS, 10%, 1/4W (81349) 745-0713-000 A9A1R25	1
56	1N4104	2	SEMICOND DEVICE (04713) 353-3591-060 A9A1VR3	1
57	RCR07G102KS	2	RESISTOR,FXD CMPSN, 1K, 10%, 1/4W (81349) 745-0749-000 A9A1R9	1
58	292CY5U103Z050B	2	CAPACITOR, FXD CER DIEL, 0.01UF, P80%M20%, 50VDC (56289) 913-3331-020 A9A1C5	1
59	RN55D3013F	2	RESISTOR,FXD FILM, 301K, 1%, 1/8W (81349) 705-1115-000 A9A1R21 (EFF TO REV LTR J)	1
59	RN60D3833F	2	RESISTOR,FXD FILM, 383K, 1%, 1/4W (81349) 705-6720-000 A9A1R21 (EFF REV LTR J)	1

Page 90

24-Volt Regulator A9A2 Figure 4


FIG- ITEM	PART NO	INDENT	DESCRIPTION	UNITS PER ASSY	USABLE ON CODE

4-	638-6275-001	1	24 VOLT REGULATOR A9A2 (SEE FIG 2-58 FOR NHA)	REF	A
	638-6275-002	1	24 VOLT REGULATOR A9A2 (SEE FIG 2-58 FOR NHA)	REF	в
1	199D155X0050CE3	2	CAPACITOR, FXD TNTLM ELCTLT, 1.5UF, 20%, 50V (56289)	1	A
	CHAIDYI AFK	~	104-9102-900 A9A204 (EFF 10 REV LIR F) CARACTTOR EVE CER DIEL 10E 107 E000C (21762)	٦	•
T	CKUGBXIU5K	z	913~5019~560 A9A2C4 (EFF REV LTR F)	4	A
1	CK06BX105K	2	CAPACITOR, FXD CER DIEL, 1UF, 10%, 50VDC (81349) 913-5019-560 A942C4	1	8
2	1990155X0050CF3	2	CAPACITOR, FXD INTLM ELCTLT, 1,5UF, 20%, 50V (56289)	ı	A
-		-	184-9102-960 A9A2C7 (EFF TO REV LTR F)
2	CK068X105K	2	CAPACITOR, FXD CER DIEL, 10F, 10%, 50VDC (81349)	1	A
•			913-5019-560 AVA2C/ (EFF REV LIN F) CADACTTOD EVD CED DIEL JUE JAY EAUDO (01760)	,	Þ
z	CKU6BX105K	٢	913-5019-560 A9A2C7	T	Ð
3	CAS01SP100-230-4	2	CONNECTOR, HDR (52072) 372-2656-130	2	в
4	SC5615	2	SEMICOND DEVICE (14099) 353-6496-020 A9A2CR1	1
5	RCR07G101KS	2	RESISTOR, FXD CMPSN, 100 OHMS, 10%, 1/4W (81349)	1
6	2N2219A	2	TRANSISTOR (49956) 352-0661-010 A9A2Q1	1
7	RCR42G181KS	2	RESISTOR, FXD CMPSN, 180 OHMS, 10%, 2W (81349) 745-5621-000 A9A2R7	ī

Page 91

FIG- ITEM	PART NO		UNITS USABLE PER ON ASSY CODE
4 -8	MS75089-15	2 COIL,RF 220UH (96906) 240-2715-410 A9A2L3	1
9	1N5363B	2 SEMICOND DEVICE (04713) 353-6550-310 A9A2VR3	18
10	RCR07G222K5	2 RESISTOR,FXD CMPSN, 2.2K, 10%, 1/4W (81349) 745-0761-000 A9A2R4	1
11	199D475X0035DB1	2 CAPACITOR, FXD TNTLM ELCTLT, 4.7UF, 20%, 35V (56289) 184-9102-390 A9A2C5	1
12	RN55D2741F	2 RESISTOR,FXD FILM, 2.74K, 1%, 1/8W (81349) 705-1017-000 A9A2R1	1
13	RCR07G102KS	2 RESISTOR,FXD CMPSN, 1K, 10%, 1/4W (81349) 745-0749-000 A9A2R2	1
14	292CY5U104Z050C	2 CAPACITOR,FXD CER DIEL, 0.10UF, P80%M20%, 50VDC (56289) 913-3331-030 A9A2C6	1
15	1N821A	2 SEMICOND DEVICE (12954) 353-3261-000 A9A2VR1	1
16	1N5359B	2 SEMICOND DEVICE (04713) 353-6550-270 A9A2VR2	1 B
17	292CY5U103Z050B	2 CAPACITOR,FXD CER DIEL, 0.01UF, P80%M20%, 50VDC (56289) 913-3331-020 A9A2C3	1
18	LM555CN	2 INTEGRATED CIRCUIT TIMER (27014) 351-1137-020 A9A2U1	1
19	MS75089-3	2 COIL,RF 22UH (96906) 240-2715-290 A9A2l4	1
20	MS75089-3	2 COIL,RF 22UH (96906) 240-2715-290 A9A2L1	1
21	292CY5U104Z050C	2 CAPACITOR,FXD CER DIEL, 0.10UF, P80%M20%, 50VDC (56289) 913-3331-030 A9A2C1	1
22	RCR32G561K5	2 RESISTOR,FXD CMPSN, 560 OHMS, 10%, 1W (81349) 745-3342-000 A9A2R5	1
23	X201R252B	2 RESISTOR,VAR 2.5K, 30%, 0.25 TO O W (71450) 376-0274-050 A9A2R3	1 A
23	101720000	2 RESISTOR,VAR 2K, 20%, 1/2W (91637) 382-0038-050 A9A2R3	1 B
24	CK05BX103K	2 CAPACITOR, FXD CER DIEL, 0.01UF, 10%, 100VDC (81349) 913-5019-200 A9A2C2	_ 1
25	12375B	2 COIL,RF 10MH (07388) 240-0261-000 A9A2L2	1
	MS51957-30	2 SCREW, MACH SST, 6-32 X 1/2 (96906) 343-0171-000 (AP)	1
26	2-332070-3	2 JACK-TIP (00779) 360-0079-120 A9A2TP1	1 A

Page 92

Front Panel A10 Figure 5

Page 93

FIG- ITEM	PART NO	INDENT	DESCRIPTION	UNITS PER ASSY
5-	641-7104-001	1	FRONT PANEL A10 (SEE FIG 1-9 FOR NHA)	REF
1	710-135A	2	METER,PANEL (32171) 450-0158-020 A10M1	1
2	KA019	2	KNOB (A1704) 281-0160-000	4
3	13E	2	JACK, TEL (82389) 360-0136-000 Aloji	1
4	RB67-2AP1M	2	KNOB (86797) 281-0659-040	2
5	RB67-5MXSPC	2	KNOB (86797) 281-0659-020	1
6	641-7101-001	2	LENS, WINDOW	1
7	623-9008-001	2	INSERT, HOUSEMARK	1
7A	632-5234-001	2	HOLDER, INDENT	1
7B	641-7109-001	2	SPACER, INDENT (EFF TO REV LTR L)	1
8	641-7155-001	2	GRILL, SPEAKER (EFF TO REV LTR L)	1
8	647-2843-001	2	GRILL, SPEAKER (EFF REV LTR L)	1
9	642-2520-001	2	PLATE, SPACING (EFF TO REV LTR L)	1
10	7360K11C27	2	SWITCH, TOGGLE (27193) 266-5424-010 A1051	1
11	641-6773-001	2	GUARD, SAFETY	1
12	292015010208050	2	CAPACITOR,FXD CER DIEL, 0.001UF, P802M202, 50VDC (56289) 913-3331-010 A10C2	1
13	292CY5U103D8050	2	CAPACITOR,FXD CER DIEL, 0.01UF, P80%20%, 50VDC (56289) 913-3331-020 Aloci	1
14	M641-5-1	2	JACK,TEL (81349) 358-1050-000 A10J2 (EFF TO REV LTR H)	1
14	647-2739-001	2	JACK,TEL A10J2 (EFF REV LTR H)	1
15	RB67-10CMXL	2	KNOB (86797) 281-0659-010	4
16	7373	2	LAMP, INCAND (71744) 262-1389-040 A10DS1	1
17	634-5930-001	2	SOCKET, LAMP ALOXDS1	1
18	7373	2	LAMP, INCAND (71744) 262-1389-040 A10DS2	1
19	634-5930-001	2	SOCKET, LAMP A10XDS2	1
20		2	LAMP, INCAND (71744) 262-1389-040 A10D53	1
21	634-5930-001	2	SUCKET, LAMP ALOXDS3	1
22	634-8939-001	2	WASHER,NON-METALLIC	2
23	634-5931-001	2		1
24	641-/11/-001	2	PLAIE, MEILK	1
25	641-7110-001	2	DEDUCTIONALER LEFT TO REV LIR 61	1
20	2/1-02/1-010	2	SPEAKER (34203) AIULSI	1
27		2	Aloui	1
27A	LKU68X334K	2	913-5019-500 Aloc4 (EFF REV LTR K)	1
28	638-6931-001	2	CIRCUIT CARD, DISPLAY AIOAI	1
29	540-9041-003	2	PUST SHEX	3
30	6XF12-5SUBLK2UGR	2	SWITCH, PUSH (31918) 266-7508-350 A1056	1
31	E	2	SWITCH, PUSH (31918) 266-7508-340 A1057	1
52	541-5955-002 DUANAYED:030	ž	DECEVED SHALER	4
33	RV6NATSD103B	2	Alori	1
34	RV6NATSD104B	2	RESISTOR, VAR 100K, 20%, 1/2W (81349) 380-1594-000 Alor2	1
35	RV6NAYSD105B	2	RESISTOR,VAR 1MEGO, 20%, 1/2W (81349) 380-1597-000 Alor3	1
36	RV6NAYSD105B	2	RESISTOR,VAR IMEGO, 20%, 1/2W (81349) 380-1597-000 Alor4	1
37	641-7098-001	2	PLATE, MTG-RESISTOR	1
38	540-9177-003	2	PUST, HEX	2
39	200563441	2	SHITCH, RIRY (76854) 259-2936-030 A1054	1
40	200563AA1	2	SWITCH RIRY (76854) 259-2936-030 A1055	1
41	200503881	2	DETENTIONETER (76854) 259-2936-030 A1053	1
42	CO1307	2	PUICNILUMETER (71450) 3/6-0276-030 A10R6	1
43 474	FF0/17 DNEED47E0E	2	FUICHILDHEIER (71990) 576-0276-050 ALURS DESTSTOD EVD STIM 475 DUMB 12 DIGUL (01760)	1
AC+	250-0010 070	د م	705-3600-810 AlOR7	1
44 75	237-8018-030	2	SWITCH DUCH (71010) 244 7500 110 (71020)	1
49	TI ACVA	c	SWITCH)FUSH (SIMIG) 200-/508-110 A1052	1

Page 94

FIG- ITEM	PART NO		UNITS USABLE PER ON ASSY CODE
5-46	FGBLACK	2 BUTTON SW (31918) 266-7508-130	1
47	01-0003-00	2 SWITCH, PUSH (31918) 266-7508-120	1
48	540-5955-002	2 SLEEVE, SPACER	1
49	PC66D200-5	2 ENCODER, SHAFT (15686) 229-9702-010 A10G1	1
50	641-7160-001	2 CABLE, FRONT PANEL NO.1	1
51	641-7161-001	2 CABLE, FRONT PANEL NO.2	1
52	641-7164-001	2 CABLE,BOX	1
53	641-7165- 001	2 CABLE, FRONT PANEL NO.3	1
54	634-5935-002	2 BRACKET, PANEL	1
55	634-5935-001	2 BRACKET, PANEL	1
56	641-7114-001	2 PANEL, FRONT	1
57	641-7119-001	2 PANEL, FRONT	1
58	280-2745-020	2 LABEL, PRESS SENS (ESDS) (12998) (EFF REV LTR M)	1

Page 95

638-6931-001

Page 96

Display A10A1 Figure 6

Page 97

FIG- ITEM	PART NO	INDENT	DESCRIPTION	UNITS PER ASSY
4	470_4071_001	۱	NYSDIAY AIRAI (SEE ETG 5-28 FOD NHA)	R FF
8- 1	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
2	RCR07G271K5	٤	745-0728-000 Alor6 RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
3	RCR07G271KS	2	745-0728-000 A1085 RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
4	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
5	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
6	RCR07G271KS	2	745-0728-000 A10A1R25 RESISTOR,FXD CMPSN, 207 OHMS, 10%, 1/4W (81349)	1
7	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	ı
8	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
9	RCR07G271KS	2	745-0728-000 AIOAIR31 RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	l
10	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349) 765-0728-000 Al0AlR35	ı
11	8804-020	2	INTEGRATED CIRCUIT LOGIC GATE (ESDS) (55009)	l
11A	CK058X471K	2	CAPACITOR, FIXED CER DIEL, 470PF, 10%, 200V (81349)	1
12	8804-020	2	INTEGRATED CIRCUIT LOGIC GATE (ESDS) (55009)	1
12A	СК05ВХ471К	٤	351-8804-020 A10A105 CAPACITOR,FIXED CER DIEL, 470PF, 10%, 200V (81349)	1
13	RCR05G104KS	2	RESISTOR, FXD CMPSN, 100K, 10%, 1/8W (81349)	1
134	CK05BX471K	2	CAPACITOR,FIXED CER DIEL, 470PF, 10%, 200V (81349)	1
14	RCR05G103KS	2	RESISTOR, FXD CMPSN, 10K, 10%, 1/8W (81349)	1
15	SN74L5138N	2	INTEGRATED CIRCUIT DECODER (04713) 351-1526-030	I
15 A	CK05BX471K	2	CAPACITOR, FIXED CER DIEL, 470PF, 10%, 200V (81349)	1
16	8804-020	2	INTEGRATED CIRCUIT LOGIC GATE (ESDS) (55009)	1
16A	CK05BX471K	2	CAPACITOR,FIXED CER DIEL, 470PF, 10%, 200V (81349)	1
17	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
174	CK05BX471K	2	CAPACITOR, FIXED CER DIEL, 470PF, 10%, 200V (81349) 913-4014-000 Al0AlC4	3
18	RCR07G271K5	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349) 745-0728-000 Al0Al849	נ
19	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349) 745-0728-000 Al0Al848	3
19A	CK05BX471K	2	CAPACITOR, FIXED CER DIEL, 470PF, 10%, 200V (81349) 913-4014-000 Al0AlC2	3
20	RCR076271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349) 745-0728-000 Al0A1R47	1
21	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349) 745-0728-000 Al0AlR46	1
22	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349) 745-0728-000 AlgalR45	I
23	RCR07G271KS	Ş	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349) 745-0728-000 Al0AlR44	נ
24	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349) 745-0728-000 Al0AlR43	נ

Page 98

FIG-		NT		UNITS	USABLE
ITEM	PARTNO	NDE	DESCRIPTION	ASSY	CODE
					,
6-25	RCR07G271K5	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
26	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
27	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 0HMS, 10%, 1/4W (81349)	I
28	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
29	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	ı
30	RCR07G271KS	2	745-0720-000 A10A1R7 RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349) 745-0728-000 A10A1D3	1
31	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
32	RCR07G271KS	2	745-0720-000 A10A1R2 RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	ĩ
33	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	I
34	RCR07G271KS	2	745-0720-000 A104189 RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
35	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
36	RCR07G271KS	2	745-0720-000 AUXIRII RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	l
37	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
38	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
39	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
40	RCR076271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
41	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
42	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
43	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
44	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
45	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
46	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
47	8804-020	2	INTEGRATED CIRCUIT LOGIC GATE (ESDS) (55009)	l
48	8804-020	٤	INTEGRATED CIRCUIT LOGIC GATE (ESDS) (55009)	l
49	292CY5U104Z050C	2	CAPACITOR, FXD CER DIEL, 0.10UF, P802M20%, 50VDC (56289) 913-3331-030 A104101	ı
50	RCR05G104KS	2	RESISTOR, FXD CMPSN, 100K, 10%, 1/8W (81349) 745-2413-000 A1041854	1
51	RCR05G104KS	2	RESISTOR,FXD CMPSN, 100K, 10%, 1/8W (81349) 745-2413-000 Al0A1R51	1
52	CAD105P100-230-4	2	CONNECTOR,HDR (52072) 372-2656-100 A10A1J1	1
53	RCR05G104KS	2	RESISTOR,FXD CMPSN, 100K, 10%, 1/8W (81349) 745-2413-000 A10A1852	1
54	RCR05G103KS	2	RESISTOR,FXD CMPSN, 10K, 10%, 1/8W (81349) 745-2377-000 Al0A1R57	1
55	RCR05G103KS	2	RESISTOR,FXD CMPSN, 10K, 10%, 1/8W (81349) 745-2377-000 AloalR58	1

Page 99


FIG- ITEM	PART NO	INDENT	DESCRIPTION	UNITS PER ASSY	USABLE ON CODE
6-56	RCR05G103KS	2	RESISTOR,FXD CMPSN, 10K, 10%, 1/8W (81349) 745-2377-000 Al0AlR55	1
57	8804-020	2	INTEGRATED CIRCUIT LOGIC GATE (ESDS) (55009) 351-8804-020 A10A104	1
58	8804-020	2	INTEGRATED CIRCUIT LOGIC GATE (ESDS) (55009)	1
59	RCR07G271KS	2	RESISTOR, FXB CMPSN, 270 QHMS, 10%, 1/4W (81349)	1
60	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
61	RCR07G271K5	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
62	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
63	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
64	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
65	RCR07G271KS	2	RESISTOR,FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	ı
66	RCR07G271KS	٤	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
67	RCR07G271KS	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
68	RCR07G271K5	2	RESISTOR, FXD CMPSN, 270 OHMS, 10%, 1/4W (81349)	1
60	1926645	2	DISPLAY. (05464) 262-1485-020 A10A1054	1
70	LR2664E	2	DISPLAY.LED (05464) 262-1485-020 A10A1DS3	ī
71	1826685	2	DISPLAY, LED (05464) 262-1485-030 A10A1D52	1
72	LR2664E	2	DISPLAY, LED (05464) 262-1485-020 A10A1DS1	1
73	280-2745-040	2	LABEL,PRESS SENS (ESDS) (12998)	1

Page 100

3. NUMERICAL INDEX

PART NUMBER	FIG- ITEM	TTL REQ	PART NUMBER	FIG- ITEM	TTL REQ
ABC8 AGC250-2 AGC32-30 CAD10SP100-230-4 30 CAS01SP100-230-4 30 CK05BX103K CK05BX103K CK05BX103K CK06BX105K CK06BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334K CK66BX334 CM04ED320J03 CM04ED320J03 CM04ED320J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD101J03 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM04FD100 CM0	2-42 3-16 3-18 2-40 6-52 4-3 4-24 6-11A 6-12A 6-13A 6-15A 6-16A 6-17A 6-19A 4-1 4-2 4-2 2-22A 2-52A 2-75 1-20 1-23 1-21 1-25 1-26 1-73 1-72 5-42 5-44 2-24 2-25 5-2 2-60 2-61 4-18 6-69 6-70 6-71 3-37 1-24 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27B 1-27D	1 2 1 2 1 7 4 3 1 2 1	M641-12-1 M641-5-1 PC66D200-5 P015-0553-000 P313-0140-000 P406AB RB67-1DCMXL RB67-2AP1M RB67-5MXSPC RCR05G104KS RCR07G104KS RCR07G102KS RCR07G102KS RCR07G103KS RCR07G104KS RCR07G105KS RCR07G222KS RCR07G271KS	2-65 5-149 2-37 2-46 5-15 5-4 5-14 5-14 5-14 5-14 5-14 5-14	1 1 1 1 4 2 1 4 3 2 1 1 1 1 1 1

Rockwell HF-380 Service and user manual

Collins instruction book

HF-380 Transceiver

introduction

DESIGN FEATURES

SERVICE BULLETINS/SERVICE INFORMATION LETTERS

Note

introduction 523-0772522

SB/SIL DESCRIPTION ISSUE DATE SB 15 The addition of a choke on the directional coupler circuit card 10-1-82

HF-380 Transceiver

table of contents

Paragraph Page 1. General 1 2. Equipment Supplied 1 3. Associated Equipment 4 4. Accessories 4 5. Options 7 6. Equipment Specifications 8

description

1. GENERAL

Warning

2. EQUIPMENT SUPPLIED

description 523-0772523

Table 1. Equipment Supplied Configuration.

3. ASSOCIATED EQUIPMENT

4. ACCESSORIES

Table 3. Accessories.

Table 3. Accessories (Cont).

5. OPTIONS

6. EQUIPMENT SPECIFICATIONS

Table 5. Equipment Specifications.

Table 5. Equipment Specifications (Cont).

HF-380 Transceiver

Rockwell International

installation

table of contents

Paragraph

installation

1. GENERAL

Warning

2. UNPACKING

3. POWER TRANSFORMER INSTALLATION

4. PREINSTALLATION CHECK/REQUIRE-MENTS

4.1 Operating Location

4.2 Antennas

4.3 Grounding

4.4 Primary Power Requirements

4.4.1 AC Voltage Operation

4.4.2 DC Voltage Operation

4.4.3 Transceiver Connectors Signal Parameters

Table 2. Connectors With Signal Parameters.

Table 2. Connectors With Signal Parameters (Cont).

5. INSTALLATION PROCEDURES

6. POSTINSTALLATION PROCEDURES

HF-380 Transceiver

table of contents

Paragraph

operation

1. GENERAL

2. CONTROLS AND INDICATORS

Table 1. Controls and Indicators.

Table 1. Controls and Indicators (Cont).

Table 1. Controls and Indicators (Cont).

3. OPERATING PROCEDURES

3.1 Preoperational Check

3.2 Frequency Selection

3.3 Function Selection

3.4 Gain Controls

3.5 Selectivity

Note

Filter Passband Positioning with PBT Control Figure 2

3.6 MIC/CARRIER Control

3.7 Operations

3.7.1 CW Operation

Note

3.7.2 SSB Operation

3.7.3 RTTY Operation

Note

3.7.4 AM Operation (Receive Only)

Rockwell International

HF-380 Transceiver

table of contents

Paragraph

theory

1. GENERAL

2. THEORY