Blonder-Tongue PS-1526 Users Manual
INSTRUCTION MANUAL
One Jake Brown Road
Old Bridge, NJ 08857-1000 USA
(800) 523-6049 • (732) 679-4000 • FAX: (732) 679-4353
www.blondertongue.com
©2004 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications are subject to change without notice. Trademarks are the property of their respective owner.
MADE IN USA
Power Supply 1526
-21 Volt DC Power Supply
Stock No. 1526
651097100L
Description
The 1526 Power Supply delivers a regulated -21 volt DC at 40 mA. It is designed primarily for powering mast-mounted preamplifiers such as Blonder Tongue’s SCMA, CMA-75, CMA-Uc, and CMA-b. A capacitor on the input line protects the unit from power line surges. Its small size, light weight, and mounting flanges make it convenient to mount
on any flat surface. An AC outlet is provided for looping AC power from one power supply to another.
Specifications
Output Voltage: -21 VDC
Maximum Load Before Deregulation: 40 mA @105 VAC input
48 mA @117VAC input
56 mA @130 VAC input
Ripple: Approx. 30 mV Peak to Peak at room temperature
Thru-Line Match (Return Loss)
UHF: 22 dB
VHF: 26 dB
Thru-Line Loss
UHF: 0.5 dB
VHF: 0.3 dB
Power Requirements: 117 VAC, 60 Hz, 0.07 amps
Dimensions: 4-3/4” x 3-1/4” x 2-3/4”, LxWxH
Shipping Weight: 1-1/4 lbs.
One Jake Brown Road
Old Bridge, NJ 08857-1000 USA
(800) 523-6049 • (732) 679-4000 • FAX: (732) 679-4353
www.blondertongue.com
WARNING: TO PREVENT SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE
!
The lightning flash with arrowhead
symbol within an equilateral trian-
gle is intended to alert you to the
presence of uninsulated “danger-
ous voltage” within the product’s
enclosure that may be of sufficient
magnitude to constitute a risk of
electrical shock to persons.
The exclamation point within an
equilateral triangle is intended to
alert you to the presence of impor-
tant operating and maintenance
(servicing) instructions in the litera-
ture accompanying the product.
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER FROM THIS UNIT. NO
USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Installation
The power supply should be installed on a flat surface. Mounting holes are provided on the base flange for this
purpose. The 1526 is designed so that its DC output can be duplexed on coaxial cable carrying RF signals. Only the
connector indicated on the unit’s label receives power. Connect the cable from the remote unit to this connector
(See Figure 1). The RF Signal from the remote unit is available at the other connector (RF OUTPUT).
CAUTION
ATTENTION!
Power Cord
Connect Cable to
Remote Unit Here
Mounting Hole
If the coaxial line to the remote unit becomes short circuited, it
may possibly damage the power supply.
Service
The 1526 power supply is designed to give long, reliable service. If you suspect trouble, check input and output signals to determine whether the unit is at fault. In addition, carefully check connections between other units for breakage or shorts. If this does not restore normal operation, return the unit to your dealer or contact Blonder Tongue
Service Department at 800-523-6049, Ext. 4256 for a Service Return Authorization Number (RMA).
Figure 1
Service information is provided only for qualified personnel with the required
test equipment. There are no USER serviceable parts in this unit.
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