Model 701-202 Handset/Speaker Amplifier

Model 701-202 Handset/Speaker Amplifier
Pub. 42004-311A
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Model 701-202
Handset/Speaker Amplifier
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains sensitive
business and technical information that is confidential and proprietary to GAI-Tronics. GAI-Tronics retains
all intellectual property and other rights in or to the information contained herein, and such information may
only be used in connection with the operation of your GAI-Tronics product or system. This manual may not
be disclosed in any form, in whole or in part, directly or indirectly, to any third party.
General Information
The Model 701-202 Handset/Speaker Amplifier includes a new printed circuit board assembly (PCBAs)
with alternate electronic components. This amplifier uses a new PCBA for replacement purposes. See the
Replacement Parts section for details.
The Model 701-202 Handset/Speaker Amplifier is an important component of the 700 Series Page/Party®
system, an industrial communications system designed to be both durable and flexible. GAI-Tronics offers
a wide variety of configuration options to solve challenging application problems.
CAUTION
Do not install this equipment in hazardous areas or areas other than those on the equipment approval
list in the Specifications section. Such installation may cause a safety hazard and consequent injury
or property damage.
Installation
The Model 701-202 Handset/Speaker Amplifier is a plug-in amplifier that mates directly with the 702, 703,
732, 733, 7325, and 7335 Series Amplifier Enclosures. Install the handset/speaker amplifier by plugging it
directly into the amplifier enclosure.
GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA
610-777-1374 n 800-492-1212 n Fax: 610-775-6540
VISIT WWW .GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Model 701-202 Handset/Speaker Amplifier
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Operation
GAI-Tronics offers two types of Page/Party® systems: Page/Single-Party (with one party line), and
Page/Multi-Party (with five party lines allowing up to five simultaneous two-way conversations).
•
Page/Single-Party: To initiate a call, the lift the station handset and press the page button or the
handset pressbar. Speak directly into the handset, make your page announcement. The paged
individual lifts the handset of a Page/Party® station for two-way communication over the party line.
•
Page/Multi-Party: First select an available party line with the five-position selector switch. Then make
your page announcement as in single-party operation, remembering to indicate the party line being
used. The paged individual then selects the indicated party line and lifts the handset for two-way
communication.
The following adjustments are accessible through the rear chassis of the amplifier using a small standard
screwdriver. However, these levels have been factory-set for optimal performance. Do not adjust these
levels unless you have followed all the steps in the Troubleshooting section and are still not satisfied with
the station performance. Each adjustment is clearly labeled:
•
Microphone Gain: adjusts the gain level from the microphone signal to the page or party lines
•
Receiver Sidetone: the amount of signal transmitted from the microphone to the receiver of a handset
•
Receiver Volume: adjusts the gain level from a party line to the receiver
•
Speaker Amplifier Gain: adjusts the speaker volume; also accessible from the front panel
Please refer to the figure below when installing and adjusting the Model 701-202 Handset/Speaker
Amplifier.
Figure 1. Installation and Adjustment Details
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Model 701-202 Handset/Speaker Amplifier
Maintenance
Troubleshooting
The following table lists some hints to aid technicians in troubleshooting.
Problem
Solution
Any problem with station
performance occurs.
Review all the steps of the installation, ensuring that you have correctly
followed ALL steps. Check all the terminations on the board and in the
line balance assembly before proceeding to any other adjustments.
Integral speaker level requires
adjustment.
1. Adjust the volume control behind the nameplate on the front panel.
Outgoing conversation level
requires adjustment.
1. Adjust the microphone gain by removing the front cover of the station
and attaching a Model 10440 Series extension ribbon cable between
the connectors. Use a small standard screwdriver (1/8-inch blade), to
slowly turn potentiometer (R17) on the rear chassis of amplifier until
reaching the proper microphone gain.
2. Replace the handset microphone.
Incoming conversation level
requires adjustment.
1. Use a small standard screwdriver to adjust the receiver volume
control on the rear of the amplifier using the extension ribbon cable
assembly as described above.
2. Replace the speaker or driver.
2. Replace the receiver element in the handset.
Feedback/distortion (a hum or
buzz on the line) occurs
during all Page/Party® station
operation.
1. Adjust the receiver sidetone on the rear of the amplifier using the
ribbon cable assembly as described above.
2. The line may be improperly terminated. Inspect the system cable for
loose connections, shorts, and grounds. Line balance assembly
connections are critical.
3. Replace the line balance assembly.
Feedback occurs only during
page.
Use the muting feature in the amplifier enclosure at the terminal blocks
Connect the violet wire at TB1-8 to TB1-7.
Sidetone (how the operator
hears his own voice) requires
adjustment.
1. Adjust the receiver sidetone at the amplifier, using the extension
ribbon cable as described above.
2. Check that the line balance assembly resistors are connected properly.
(See GAI-Tronics Publication 42004-139)
Crosstalk occurs.
One or more system cable pairs may be improperly terminated. Visually
inspect the system cable connections for accidental crossing of the cable
pairs or grounds.
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Model 701-202 Handset/Speaker Amplifier
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Specifications
Amplifier
Voltage ................................................................................ 90/140 V ac range, 50/60 Hz, 120 V ac nom.
Power Consumed: Zero/max. signal (12 watts) .............................................. 10 VA, 4.5 W/50 VA, 27 W
Construction/Finish............................................................... 16-gauge cold-rolled steel/gray baked enamel
Handset
Microphone......................................................................................................... Dynamic, noise-canceling
Receiver........................................................................ Dynamic, hearing aid compatible per FCC Part 68
Cable........................................................................................................ Retractile, 6-foot extended PVC
Material.....................................................................................................................................Gray ABS
External Controls ........................................................Push-to-page handset pressbar, handset hook-switch
Handset Amplifier
Output Level....................................................................................... 1.5 VRMS nominal into 33-ohm load
Output Limiter ............................................................................................................... 1.5 VRMS nominal
Gain .................................................................................................. 55 dB nominal (below limiter level);
adjustable from 40 to 63 dB
Frequency Response............................................................................................. 250-4000 Hz, +/- 1.5 dB
Distortion............................................................................................... 1.5% maximum THD @ 1000 Hz
Controls..............................................................................Microphone gain, receiver volume and sidetone
Speaker Amplifier
Output ......................................................................................12 watts min., with nominal supply voltage
Voltage Gain............................................................................................................26 dB max, adjustable
Frequency Response........................................................................250-4,000 Hz, +0, - 3 dB ref. to 1 kHz
Distortion..........................................................................................1% max. THD @ 1,000 Hz, 12 watts
Input Impedance.............................................................................................................50,000 ohms nom.
Controls................................................................................. Speaker volume (adjusted through the access
hole behind the nameplate on the front panel)
General
Temperature Range (Operating/Storage)............................................. -22 ºF to +158 ºF (-30 ºC to +70 ºC)
Dimensions ..............................................8.1 H × 8.1 W × 3 D inches (20.6 × 20.6 × 7.6 cm) behind panel
8.1 H × 8.1 W × 3.5 D inches (20.6 × 20.6 × 8.9 cm) front of panel
Shipping Weight ................................................................................................................6.8 lbs. (3.1 kg)
Approvals
NRTL Listed for USA and Canada:...............................Div. 2, Class I, Groups A, B, C, D when used with
GAI-Tronics Listed 702 or 703 Series 120 V ac enclosures.
Div. 2, Class I, Groups A, B, C, D; Div. 2, Class II, Group F and G;
Div. 2, Class III when used with listed GAI-Tronics
Model 733, 732, 7325, or 7335 Series 120 V ac enclosures
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Model 701-202 Handset/Speaker Amplifier
REPLACEMENT PARTS
Part No.
Description
10105-007
Handset Assembly
13204-002
Receiver Cap
12511-001
Dynamic Transmitter and Cap
12550-001
Receiver Assembly and PCBA
51008-003
Pressbar Switch Kit
12514-007
6-foot PVC Cord and Bushing
12514-008
15-foot PVC Cord and Bushing
12514-009
25-foot PVC Cord and Bushing
12514-004
6-foot Hytrel Cord and Bushing
12514-005
15-foot Hytrel Cord and Bushing
12514-006
25-foot Hytrel Cord and Bushing
69701-007
PCBA
12523-001
GAI-Tronics Nameplate Kit
12601-001
PCBA Standoffs (10)
46101-012
Hardware Kit
12519-002
Hook Assembly
12530-001
Transformer/ Conn. Subassembly
25210-005
Cell Gasket
10440-002
16-pin ribbon cable connector
61512-007
Harness Assembly Switch
12604-001
0.7 amp (10 pack)
12604-002
1/16 amp (10 pack)
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Warranty
Equipment.
GAI-Tronics warrants for a period of one (1) year from the date of shipment, that any
GAI-Tronics equipment supplied hereunder shall be free of defects in material and workmanship, shall
comply with the then-current product specifications and product literature, and if applicable, shall be fit
for the purpose specified in the agreed upon quotation or proposal document. If (a) Seller’s goods prove
to be defective in workmanship and/or material under normal and proper usage, or unfit for the purpose
specified and agreed upon, and (b) Buyer’s claim is made within the warranty period set forth above,
Buyer may return such goods to GAI-Tronics nearest depot repair facility, freight prepaid, at which time
they will be repaired or replaced, at Seller’s option, without charge to Buyer. Repair or replacement shall
be Buyer’s sole and exclusive remedy, and the warranty period on any repaired or replacement equipment
shall be one (1) year from the date the original equipment was shipped. In no event shall GAI-Tronics
warranty obligations with respect to equipment exceed 100% of the total cost of the equipment supplied
hereunder. Buyer may also be entitled to the manufacturer’s warranty on any third-party goods supplied
by GAI-Tronics hereunder. The applicability of any such third-party warranty will be determined by
GAI-Tronics.
Services.
Any services GAI-Tronics provides hereunder, whether directly or through subcontractors,
shall be performed in accordance with the standard of care with which such services are normally
provided in the industry. If the services fail to meet the applicable industry standard, GAI-Tronics will,
for a period of one (1) year from the date of completion, re-perform such services at no cost to Buyer. Reperformance of services shall be Buyer’s sole and exclusive remedy, and in no event shall GAI-Tronics
warranty obligations with respect to services exceed 100% of the total cost of services provided
hereunder.
Warranty Periods.
Every claim by Buyer alleging a defect in the goods and/or services provided
hereunder shall be deemed waived unless such claim is made in writing within the applicable warranty
periods as set forth above. Provided, however, that if the defect complained of is latent and not
discoverable within the above warranty periods, every claim arising on account of such latent defect shall
be deemed waived unless it is made in writing within a reasonable time after such latent defect is or
should have been discovered by Buyer.
Limitations / Exclusions.
The warranties herein shall not apply to, and GAI-Tronics shall not be
responsible for, any damage to the goods or failure of the services supplied hereunder, to the extent
caused by Buyer’s neglect, failure to follow operational and maintenance procedures provided with the
equipment, or the use of technicians not specifically authorized by GAI-Tronics to maintain or service the
equipment. THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE IN LIEU OF AND
EXCLUDE ALL OTHER WARRANTIES AND REMEDIES, WHETHER EXPRESS OR IMPLIED
BY OPERATION OF LAW OR OTHERWISE, INCLUDING ANY WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Return Policy
If the equipment requires service, contact your Regional Service Center for a return authorization number
(RA#). Equipment should be shipped prepaid to GAI-Tronics with a return authorization number and a
purchase order number. If the equipment is under warranty, repairs or a replacement will be made in
accordance with the warranty policy set forth above. Please include a written explanation of all defects to
assist our technicians in their troubleshooting efforts.
Call 800-492-1212 (inside the USA) or 610-777-1374 (outside the USA) for help identifying the
Regional Service Center closest to you.
(Rev. 1/97)
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