INTRODUCTION
Thank you for your purchase of the Rolls HR78 AM/FM Digital Tuner. This unit
has been carefully designed and assembled to provide years of reliable AM/FM
reception and audio quality. Please read this manual carefully as it contains im-
portant information regarding the proper setup and operaton of the HR78.
FEATURES:
• 12 FM and 6 AM presets
• Retains presets when power is off
• Large digital LCD display
• Level control
• 9 - 10 kHz bandwidth select switch
• RCA and 1/8" (3.5 mm) Stereo Outputs
INSPECTION
1. Unpack and Inspect the HR78 package
Your HR78 was carefully packed at the factory in a protective carton. Nonethe-
less, be sure to examine the unit and the carton for any signs of damage that
may have occurred during shipping. If obvious physical damage is noticed,
contact the carrier immediately to make a damage claim. We suggest saving
the shipping carton and packing materials for safely transporting the unit in the
future.
2.
For complete Warranty information and registration, please visit our website;
www.
rolls.com
. Click on the REGISTER YOUR WARRANTY HERE line. Or, complete the War-
ranty Registration Card and return it to the factory.
TABLE OF CONTENTS
INTRODUCTION
1
FEATURES
INSPECTION
TABLE OF CONTENTS
DESCRIPTION
Front Panel
2
Rear Panel
3
CONNECTION
4
OPERATION
5
SPECIFICATIONS
6
WARRANTY
Back Cover
SPECIFICATIONS
FM
Intermediate Frequency:
10.7 MHz +/- 0.3
Tuning Range:
87.5 - 108 MHz
30 dB quieting sensitivity:
28 dB
IF Rejection 87.9 MHz:
50 - 56 dB
Image Rejection 105.9 MHz:
20 - 26 dB
3dB Limiting Sensitivity:
28 - 35 dB
THD 1 mV Input:
0.5 - 2 %
Auto Tuning Sensitivity 97.9 MHz:
25 - 30 dB
AM Suppression:
26 - 32 dB
AM
Intermediate Frequency:
450 kHz +/- 5
Tuning Range:
US:
520 - 1710
International:
531 - 1602 kHz
20 dB quieting sensitivity:
58 dB
IF Rejection 603 kHz:
25 - 32 dB
Image Rejection 1404 kHz:
32 - 38 dB
Auto Tuning Sensitivity 999 kHz:
28 - 35 dB
Max Output @ 1 kHz:
0.5V +/- 0.05V
Supply Voltage:
12 VDC, 200mA
(Rolls Model PS27)
Dimensions:
(190w x 185d x 42.5h) mm
Weight:
3 lbs
