Optimod-Surround 8685 V1.0 Operating Manual - Orban

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5-12 TROUBLESHOOTING ORBAN MODEL 8685 DELICATE INSTRUMENT, FRAGILE! Insure the package properly. Ship prepaid, not collect. Do not ship parcel post. Your Return Authorization Number must be shown on the label, or the package will not be accepted.
OPTIMOD SURROUND PROCESSOR TECHNICAL DATA 6-1 Section 6 Specifications Technical Data It is impossible to characterize the listening quality of even the simplest limiter or compressor based on specifications, because such specifications cannot adequately describe the crucial dynamic processes that occur under program conditions. Therefore, the only way to evaluate the sound of an audio processor meaningfully is by subjective listening tests. Certain specifications are presented here to assure the engineer that they are reasonable, to help plan the installation, and make certain comparisons with other processing equipment. Performance Frequency Response (Bypass Mode): Surround Processing: ±0.10 dB, 20 Hz–20 kHz for 44.1 kHz or higher input/output sample rates. At 32 kHz input and/or output sample rate, the passband is reduced to approximately 14.7 kHz. Noise: Output noise floor will depend upon how much gain the processor is set for (Limit Drive, AGC Drive, Two-Band Drive, and/or Multiband Drive), gating level, equalization, noise reduction, etc. The dynamic range of the A/D Converter, which has a specified overload-to–noise ratio of 110 dB, primarily governs it. The dynamic range of the digital signal processing is 144 dB. Polarity (Bypass Mode; Operate Mode when processing chain is configured for linear phase): Absolute polarity maintained. Positive-going signal on input will result in positivegoing signal on output. Internal Processing Sample Rate: 48 kHz. We believe this provides maximum audible transparency by minimizing numerical “noise” in the equalizers and filters while still preserving a pure, transparent sound. The double-precision equalizers and crossover filters used throughout the 8685 produce at least 6 dB lower noise and nonlinear distortion than they would at 96 kHz. Processing Resolution: Internal processing has 24 bit (fixed point) or higher resolution; uses 12 Freescale (formerly Motorola) 150 MHz DSP56367 DSP chips.
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Operating Manual OPTIMOD 8685 Surro
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IMPORTANT SAFETY INSTRUCTIONS All t
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Manual PLEASE READ BEFORE PROCEEDIN
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Operating Manual OPTIMOD 8685 Surro
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LIMITED WARRANTY...................
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Advanced Two-Band Controls ........
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CIRCUIT DESCRIPTION................
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Function Description Drawing Page H
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C CALM Act 1- · 3 CBS Loudness Lev
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dual-mono mode 2- · 34 dull sound
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Reassembling 4- · 7 LCD display 6-
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DSP board 6- · 22 Encoder board 6-
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Resetting 8585 2- · 44 resolution
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Changing via terminal program 2- ·
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OPTIMOD SURROUND PROCESSOR INTRODUC
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2-2 INSTALLATION ORBAN MODEL 8685 C
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2-4 INSTALLATION ORBAN MODEL 8685 P
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2-6 INSTALLATION ORBAN MODEL 8685 A
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2-8 INSTALLATION ORBAN MODEL 8685
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OPTIMOD SURROUND PROCESSOR OPERATIO
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Page 205 and 206: OPTIMOD SURROUND PROCESSOR OPERATIO
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From Base Board 1 2 3 4 5 N/C 6 N/C
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+5V_PS1 CR1 SMAJ5.0CA +5V_PS2 CR2 S
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6-54 TECHNICAL DATA ORBAN MODEL 868
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+ C703 10UF C725 0.1UF POWER SUPPLY
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DSP CONTROL INTERFACE 62375.000.01.
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(SHT7) (SHT7) (SHT6) (SHT6) (SHT6)
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L703 HZ0805G102R-10 C703 +3.3V 0.1U
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J2 1 2 3 4 5 6 7 8 9 10 11 12 13 14
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From Interface Board J2 Pin 4 is au
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GND 1 +5VD 4 VCC GND 2 IC201 /TOVER
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J300A BNC DUAL with CAPACITOR UPPER
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IN-CIRCUIT SERIAL PROGRAMMING INTER
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+5VD Y902 1 2 DGND1 +3.3V_CLK 25.00
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+2.5V DGND +2.5V DGND +2.5V DGND +2
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+2.5V DGND_CLNR + C1300 47uF/10V +1
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RS485-SDI INTERFACE DGND J200 2 4 6
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Optimod-Surround 8685 V1.0 Operating Manual - Orban

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