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Service Manual
AV8
Issue 2.0
FMJ AV8
Preamp Processor
A ARCAM RCAM
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Contents List Section Issue Manual Updates ! Service Manual changes issue 1.0 to 2.0 - Technical specifications ! Front & rear view diagram - ! Dimension diagram - ! Specification - Service guide ! Engineering Mode - ! AV8 Programmer software - ! AV8 Loader software - Build Sequence ! How to assemble the AV8 - Phono board L870 ! Circuit description - ! Component overlay 2 ! Parts list 2.0 ! Circuit diagrams 2.0 Digital board L896
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Manual Updates Service Manual changes issue 1.0 to 2.0 L896 Digital Board 02_E101 IC906 EEPROM changed from 5G24LC08 to 5G24LC16 Parts list updated to issue 1.3 02_E127 R803 removed from parts list 02_E160 R921 changed from 10K 0805 1% (1M310 ) to 33K 0805 1% (1M333) 02_E161 IC907 changed from 74HC14 (5K7414) to 74LVC14 (5KLVC14) IC803 changed from CS8415A-CZ (5A8415) to CS8415A-CR (5A8415R) R820 changed from 5K1 (1M251) to 1K2 (1M212) C820 changed from 82N (2J382) to 100N
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Technical Specifications Contents ! Front & rear view diagram ! Dimensions diagram ! Specifications
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THX SURROUND EX AV8 PREAMP PROCESSOR THX EFFECT MODE DISPLAY MENU OK DVD SAT AV VCR PHONO/AUX CD TUNER TAPE DVD-A DIRECT MUTE POWER DESIGNED & MADE REMOTE DIGITAL INPUTS HIGH QUALITY VIDEO IN THE UK BY:- A & R CAMBRIDGE, 1 2 VIDEO IN Y/G WATERBEACH, CB5 9PB. DVD AV TAPE Y/G V/R V/R U/B U/B OUT LOCAL ZONE 2 1 2 VCR VCR MONITOR OUT TAPE AV SAT DVD OUT IN RS232 CONTROL VIDEO TRIGGERS MM 12V IN 50/60Hz VCR SAT Y/G U/B V/R Y/G U/B V/R OUT TUNER CD TRIGGER ZONE 2 1/RGB 2/S-VIDEO PROG ~ 100-240VAC OUT
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Technical Specifications Audio Line input sensitivity (set to Reference) 2V rms Input impedance 10k ohm Preamp output level (nominal) 2V rms Output impedance 25 ohm Signal/noise ratio (unwtd 20Hz –20kHz)– analogue >100dB Signal/noise ratio (unwtd 20Hz –20kHz)– digital (24-bit) >98dB THD+N – analogue 0.0012% THD+N – digital (24-bit) 0.0015% Headphone maximum output level into 600 ohm 5V p-p Output impedance 5 ohm Video inputs and outputs
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Service Guide Contents ! Engineering mode ! AV8 Programmer software ! AV8 Loader software
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Restore Defaults AV8 Engineering Mode This allows you to reset the AV8 to the factory default settings. To access the software versions simultaneously press OK, Diagnostics (For factory diagnostics only) DVD & CD on the front panel. This switches on RS232 messaging to allow remote analysis (hyperterminal at 38400 baud, 8 data bits, no The software versions will be displayed on the OSD. parity, 1 stop bit and no flow control). Please note that this will disable the RS232 inte
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AV8 Programmer AV8 Loader (Preset Backup) Future software upgrades can be installed via the RS232 The AV8 Loader utility allows the unit settings to be either port on the back of the AV8. The following equipment will downloaded from or uploaded to the AV8. The following be required: equipment will be required: ! IBM PC compatible computer running Windows 98 ! IBM PC compatible computer running Windows 98 or later or later ! Software – ARCAM AV8 Programmer utility ! Software – ARC
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Build Sequence Contents ! How to assemble the AV8
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1. Assemble the damping plate to chassis floor. Screw 6. Assemble 5x H038 to audio board, L921AY, using 5x through from underneath the chassis and thoroughly degrease the HA3V06A in the holes running along the EMC can, only then fit chassis floor before assembling the damping plate. See FIG1. the board into the chassis with the other 5x H039 pillars (do not fit rear panel). Loosely screw all the pillars through the pcb into the chassis, once these pillars are in place tighten them all.
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8. Fit the video board (L922AY – main board) to the 11. Fit the horizontal power PCB (L897AY – snap-off chassis (do not fit rear panel yet). Ensure the board is pushed to part 2) using 6x HA3V06A screws into standoffs. Refer to FIG8. the back of the chassis before tightening down the board. Use Once the pcb is in place, fit the cables below. the H041 pillars in the two holes closest to the S-video connectors (right hand side nearest the EMC screen as viewed from the connector side)
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