Allen GL2200+service+manual电路图.pdf

ALLEN&HEATH WARNING HIGH VOLTAGES Power Supply Unit (PSU) work should only be carried out by qualified personnel. We recommend that you use an approved Allen & Heath service centre for all power supply work. Please contact your local Allen & Heath distributor for more details. http:/www.allen- RadioFans.CN 收音机爱 好者资料库 Audio mixing console */5533 PUBLICATION: AP3389 6(59,&(#0$18$/ RadioFans.CN 收音机爱 好者资料库 GL2200 SERVICE MANUAL2 CONTENTS Introduction .3 Service and Technical Support.3 Safety Warning & General Precautions.3 The GL2200 Range & Options .4 Flightcasing the Console.4 Dimensions .4 Specifications & Connections .5 Ordering a GL2200 Console, Options and Documentation.6 Ordering an Assembly .7 Ordering a Spares Kit .8 - 9 Front Panel Layout.10 Rear Panel Layout .11 Block Diagram.12 GL2200 INPUT Circuit Board component Ident .AG3395 GL2200 INPUT Circuit Diagram .C3395 GL2200 STEREO Circuit Board component Ident .AG3428 GL2200 STEREO Circuit Diagram (Page 1 of 2) .C3428 GL2200 STEREO Circuit Diagram (Page 2 of 2) .C3428 GL2200 GROUP Circuit Board component Ident.AG3425 GL2200 GROUP Circuit Diagram (Page 1 of 2).C3425 GL2200 GROUP Circuit Diagram (Page 2 of 2).C3425 GL2200 LEFT Circuit Board component Ident .AG3426 GL2200 LEFT Circuit Diagram (Page 1 of 3) .C3426 GL2200 LEFT Circuit Diagram (Page 2 of 3) .C3426 GL2200 LEFT Circuit Diagram (Page 3 of 3) .C3426 GL2200 RIGHT Circuit Board component Ident.AG3427 GL2200 RIGHT Circuit Diagram (Page 1 of 2).C3427 GL2200 RIGHT Circuit Diagram (Page 2 of 2).C3427 GL2200 OSC/NOISE Circuit Board component Ident.AG3519 GL2200 OSC/NOISE Circuit Diagram.C3519 GL2200 PSU Circuit Board component Ident.AG3504 GL2200 PSU Circuit Diagram.C3504 GL2200 Service Manual AP3389 Issue 1. Copyright 1999 Allen & Heath. All rights reserved MANUFACTURED IN ENGLAND BY:ALLEN & HEATH AGENT: ALLEN & HEATH Kernick Industrial Estate Penryn, Cornwall, TR10 9LU. UK http:/www.allen- A DIVISION OF HARMAN INTERNATIONAL INDUSTRIES Ltd Warning to the Service Engineer Allen & Heath warns that any unauthorised changes or modifications to the GL2200 unit may invalidate the legal compliance of the unit and could void the users authority to operate the equipment. RadioFans.CN 收音机爱 好者资料库 GL2200 SERVICE MANUAL3 Introduction The information presented in this manual is intended for competent technical personnel to carry out service and product support for the GL2200 range of consoles. We assume that the reader is familiar with the related electronic theory and audio terminology, and is able to carry out servicing, faultfinding and repair of audio equipment of this type. Service personnel should also be familiar with audio systems, mains earthing and power requirements, as well as handling precautions. For information on the configuration, operation and application of the GL2200 range, please refer to GL2200 User Guide (A&H Part no: AP3388). Whilst we believe the information in this manual to be reliable we do not assume responsibility for inaccuracies. We also reserve the right to make changes in the interest of further product development. Service and Technical Support Under normal conditions the GL2200 does not require user maintenance or internal calibration. Any service work required should be carried out by qualified service personnel only. We are able to offer further product support through our world-wide network of approved dealers and service agents. You can also access our Web site on the Internet for information on our product range, assistance with your technical queries or simply to chat about audio matters. To help us provide the most efficient service please keep a record of the console serial number, the date and place of purchase to be quoted in any communication regarding this product. General Precautions Your GL2200 is ruggedly constructed to give many years of reliable operation. However, you will extend the life of the console and preserve its cosmetics by applying these simple common sense precautions. x Avoid storing or using the mixing console in conditions of excessive heat or cold, or in positions where it is likely to be subject to vibration, dust, dirt or moisture. x Do not use any liquids to clean the control surface of the console, a soft dry brush or dry lint-free cloth is ideal. x Use only water or ethyl alcohol to clean the trim and scribble strips. Other solvents may cause damage to paint or plastic parts. x The faders, switches and potentiometers are lubricated for life. The use of electrical lubricants on these parts is not recommended. x Avoid using the console close to strong sources of electromagnetic radiation (e.g. video monitors, high power electric cabling): this may cause degradation of the audio quality due to induced voltages in connecting leads and chassis. For the same reason, always site any external power supply away from the unit. SAFETY WARNING! Mains electricity is dangerous and can kill. Mains voltage is present within the console power supply unit. Do not remove the power supply cover with mains electricity connected. To ensure your safety, mains earth is connected to the chassis through the power lead. Do not remove this mains earth connection. To avoid the risk of fire, replace the mains fuse only with the correct value and type as indicated on the power supply unit. The internal power supply unit contains no serviceable components and must be replaced as a complete unit if a failure occurs. GL2200 SERVICE MANUAL4 The GL2200 Range 12, 16, 24 and 32 channel models GL2200-41210 mono, 2 stereo, 4 groups, 6 aux, 2 stereo returns, L, R, Mono sum GL2200-41614 mono, 2 stereo, 4 groups, 6 aux, 2 stereo returns, L, R, Mono sum GL2200-42422 mono, 2 stereo, 4 groups, 6 aux, 2 stereo returns, L, R, Mono sum GL2200-43230 mono, 2 stereo, 4 groups, 6 aux, 2 stereo returns, L, R, Mono sum Options GL2200-SL1Sys-link buss expander, one kit per console RPS92U rack mount power supply for backup Flightcasing The Console If the console is to be regularly moved we recommend that it is installed in a foam-lined flightcase. At all times avoid applying excessive force to any knobs, switches or connectors. Dimensions for flightcasing the console are shown below: Dimensions Unpacked Packed Width depth height weight(kg) Width depth height weight(kg) GL2200-412.548.572.155 .16. 700.750.280. 20 GL2200-416.668.572.155 .18. 815.750.280. 23 GL2200-424.920.572.155 .24. 1065.750.280. 29 GL2200-432.1160.572.155 .30. 1325.750.280. 35 RPS9 power supply.483.140. 96 . 6. 540.270.180. 8 GL2200 SERVICE MANUAL5 Specifications 0 dBu = 0.775 Volts rms 0 dBV = 1 Volt rms HEADROOM:. +21dB MAX OUTPUT: .XLR +25dBu 2kohm max load .JACK +21dBu 2kohm max load METERS: L, R.peak reading 12 bar LED Groups 1-4.peak reading 4 segment LED Channelspeak reading 4 segment LED PEAK LEDs: . Turn on 5dB before clipping FREQUENCY RESPONSE referred to 1kHz +4dBu: Any input to any output. 20Hz to 30kHz +0/-1dB DISTORTION: THD+Noise +14dBu 1kHz Mic in to L-R output, 40dB gain .0.010% Line in to L-R output, 0dB gain.0.008% CMRR CROSSTALK: Referred to driven channel 1kHz Adjacent channel . < -94dB Channel fader off.< -90dB Channel mute on.< -90dB Channel Pan pot isolation.< -80dB NOISE: Measured rms, 22kHz bandwidth Mic input EIN (150 ohm source).< -128dB Line preamp, 0dB gain.< -90dBu L-R output residual noise.< -94dBu (98dB S/N) L-R faders 0, nothing routed.< -90dBu (94dB S/N) L-R mix noise (16 channels routed) .< -84dBu (88dB S/N) Group, faders 0, nothing routed.< -91dBu (95dB S/N) Group mix noise (16 channels routed).88dB Connections INPUTS: Mic in .XLR.pin 2 hot, 3 cold, balanced.2k Ohm.variable -60 to -20dBu Line in .XLR.pin 2 hot, 3 cold, balanced.10k Ohm.variable -30 to +10dBu or TRS jack.tip hot, ring cold, balanced.10k Ohm.variable -30 to +10dBu Stereo Ch Line in .TRS jack .tip hot, unbalanced.8k Ohm .-20dBu min Stereo Return.TRS jack .tip hot, unbalanced.6k Ohm.-10dBV min 2-Track Return.RCA PHONO.unbalanced.10k Ohm.-10dBV min Insert Return .TRS jack .tip send, ring return, unbalanced.6k Ohm.0dBu (chan), -2dBu (out) OUTPUTS: L-R, Group out .XLR.pin 2 hot, 3 cold, balanced.<75 Ohm .+4dBu, +27dBu max Direct out.TRS jack .tip hot, impedance balanced .<75 Ohm .0dBu 2-Track sends .RCA PHONO.unbalanced.<75 Ohm .variable +21dBu max Aux out.TRS jack .tip hot, impedance balanced .<75 Ohm .variable +21dBu max Mono out.XLR.tip hot, ring cold, balanced.<75 Ohm .+4dBu, +27dBu max Insert send.TRS jack .tip send, ring return, unbalanced.<75 Ohm .0dBu (chan), -2dBu (out) Monitor out.TRS jack .tip left, ring right, unbalanced.<75 Ohm .variable +21dBu max Phones out.TRS jack .tip left, ring right .for stereo headphones 30 to 600 Ohms GL2200 SERVICE MANUAL6 Ordering a GL2200 Console To order a new console please specify the model number and AC mains voltage required. MODELDESCRIPTIONORDER CODE GL2200 12 Channel 10 mono + 2 stereo input channels GL2200-412/volts GL2200 16 Channel 14 mono + 2 stereo inputs channels GL2200-416/volts GL2200 24 Channel 22 mono + 2 stereo inputs channels GL2200-424/volts GL2200 32 Channel 30 mono + 2 stereo inputs channels GL2200-432/volts Ordering an Option To order an option please specify the serial number of the console that is to have the option fitted. MODELDESCRIPTIONORDER CODE GL2200-SL1 GL2200 SYS-LINK KIT GL2200-SL1 GL2200 Balanced Output IC option AE0302 RPS9 2U external linear power supply RPS9/volts Manuals and Support Documentation DESCRIPTIONORDER CODE GL2200 User Guide AP3388 GL2200 Service Manual AP3389 GL2200 Brochure AP3390 GL2200 SYS-LINK Fitting Instructions AP3622 GL2200 SYS-LINK Application Note AP3623 RPS9 User Guide AP0334