Revox B251 Operating Instructions Manual page 21

TABLE OF CONTENTS
Page
1.
STARTUP
PROCEDURE
3
1.1 General
3
1.1.1
Connecting the audio
sources
3
1.1
.2
ConnectinÖ
tne
speakers
3
1.2
Special
inslructions
3
1
.2.1
Remote control of a
REVOX
tape recorder through the
REVOX
8251 amplifier
(option)
3
1.2.2 Acrylic plastic
cover
3
1.3
Connecting the amplifier to the AC
supply
3
1.4
lndex of
o[erator
controls
4
1.4.1
Front-panel
controls
4
1.4.2
Connector
panel
.
5
2.
BASIC OPERATING
PROCEDURES
6
2.1
Switching on the 8251
amplifier
6
2.1.1
Selecting the audio sources (MONITOR
SELECTORS t31l
through
t36l)
6
2.1.2
Volume
control
6
2.1.3
Channel
balance
6
2.1.4
Mono/stereo
change-over
7
2.1.5
-20
dB button
t30l
7
2.1.6
Selecting the audio source for the tape outputs (RECORD OUTPUT buttons [3]
through
t8l)
.......
7
2.2
Tone
control and
filters
7
2.3
Display
l27l
B
2.3.1
Static volume
indication
B
2.3.2
Peak
level
indication
B
2.3.3
Output power
indication
I
2.4
Operating with the infrared system remote control 8201
.
9
2.4.1
Remote control of
amplifier
I
2.4.2 Remote control of tape recorder (connected to socket
t4Ql)
9
3.
ADJUSTING THE SENSITIVITY OF THE
INPUTS
10
3.1 General
1
0
3.2
Calibrating and adjusting the tape
inputs
10
3.2.1
Procedure
10
3.3
Adjusting the sensitivity of the remaining
inputs
10
3.3.1
Adjusting the sensitivity of the TUNER input
t50l
. . .
.
.
11
3.3.2
Adjusting the sensitivity of the PHONO inputs
t56l/i571
11
3.3.3
Adjusting the sensitivity of the DISC inputs
[51]
11
3.3.4
Adjusting the sensitivity of the AUX inputs
t55l
11
3.4
Checking by
ear
11
4.
ADJUSTING THE SPEAKER
AND
HEADPHONES OUTPUT
VOLUME
13
4.1
Adjusting the speaker output
volume
13
4.1.1 Adjusting the power-on
volume
13
4.1.2
Adjusting speaker output
B .
13
4.2
Headphones
mode
13
5.
TECHNICAL
APPENDIX
14
5.1 Troubleshooting
.....
14
5.2
Accessories
...
.......
14
5.3
Technical
Data
14
5.4 Dimensions
15
2