Manual
Table Of Contents
- Analogue Redbox User Handbook rev 1.92
- Contents
- Figures
- Warranty, Safety & Installation Information
- RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers
- RB-SM1 Single & RB-SM2 Dual Stereo To Mono Converter
- RB-UL1 Single, RB-UL2 Dual & RB-UL4 Quad Stereo Unbalanced
- RB-LU4 Quad Stereo Balanced To Unbalanced Converter
- RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converte
- RB-SL2 Twin Mono, or Stereo, Limiter
- RB-DA6 6 Way Stereo Distribution Amplifier
- RB-HD1 Stereo Headphone Amplifier
- RB-HD6 6 Way Stereo Headphone Distribution Amplifier
- RB-SD1 Silence Detection Unit
- RB-PMX4 10 Input, 4 Output Analogue Preset Mixer
- RB-LI2 Stereo Line Isolation Unit
- RB-PLI6 6 Way Mono Passive Line Isolation Unit
- RB-SS10 10 Way Stereo Analogue Source Selector/Mixer
- RB-LC3 3 Way Light/Power Controller
- Glossary
- Connectors And Cabling
- Index
Chapter 12 - RB-LI2 Stereo Line Isolation Unit
Redbox User Handbook 12-3
Ground Link for
Output 1
Ground Link for
Output 2
LK1
LK2
Front of RB-LI2
1
2
1
2
Off
12.3.4. Output Level Adjustment
The isolated outputs can be individually adjusted using pre-set potentiometers, which
are accessible through the rear panel. The gain range of the stereo line isolation unit
is -15dB to +13.5dB (28.5dB).
12.3.5. Internal Jumpers
The unit has jumpers that are used to balance the output about ground. By default
these are not fitted when the unit leaves the factory.
To get inside the RB-LI2, first ensure that it has been disconnected from the mains
power and that the mains IEC lead to the unit has been removed. Observing anti-
static precautions, undo the four-crosshead screws on the back panel at the far left
and far right of the panel (2 at each end). Also undo the small brass screws, which
hold the top and bottom panels to the rear panel. The rear panel should slide
backwards out of the unit together with the main circuit board.
Fig 12-4: Jumper Positions on the RB-LI2 PCB