Service information for Model MRMIOI Music Recovery Module

Garrard

Music Recovery Moduie
Introduction Connections Operation Spare parts list Circuit diagram Dismantling Test procedures

page 7

Details of authorised Garrard service centres are available on request.
Model MRMIOI Music Recovery Module

Introduction

The Music Recovery Module (referred to as MRM) is designed to remove the objectionable noises heard when a phono pickup meets a scratch on the record being played. The MRM is not intended to remove all noises associated with old, worn or generally dirty records. Since these noises occur in an almost continuous manner, their detection could lead to the removal of a substantial proportion of the original recording. The MRM contains a high quality stereo pre-amplifier with magnetic phono inputs. This allows the MRM to be simply and directly connected to the amplifier 'auxiliary' or 'tuner' inputs. The scratch detection circuit recognises the whole waveform of the scratch and distinguishes it from the peaks of the recorded music. In order to allow the scratch detection circuit sufficient time to make the decision to remove the scratch, the channels are individually delayed by a few miUi-seconds without limiting the audio frequency range. After recognising the scratch, a specially designed network isolates the signal for sufficient time for the scratch noise to pass out of the delay line. Patents applied for. WARNING: To prevent fire or shock hazard, do not expose this appliance to rain or moisture.

Specifications

Input Suitable for pickup cartridges having an output of 0.7 to 2mV7cm/sec. Input impedance 47k ohm. Frequency response 1.5dB 2OH2 to 20kHz (including equalisation network for magnetic cartridges). Dynamic range Direct mode: greater than 100dB. Via suppressor: greater than 80dB (typically 85dB). (Unweighted 20Hz to 20kHz ref. to 1kHz maximum output.) Distortion At 1kHz at nominal output: Direct mode: Typically less than 0.01 % T.H.D. Via suppressor: Typically less than 0.1 % T.H.D. Channel balance Better than 2dB at 1kHz. Garrard's policy is one of continued development and therefore the Company reserves the right to alter specifications without notice. For Service and Enquiries: Garrard Engineering Limited, Sales Service Department, Kembrey Street, Swindon, Wiltshire SN2 6BP. Telephone: Swindon (0793)41701 Or, in U.S.A.: Plessey Consumer Products, Garrard Dealer Sales Division, 100 Commercial Street, Plainview, New York 11803. Telephone: (516)938-8900 Nominal output 300mV RMS. Output For 1% T.H.D. at 1kHz: Suppressor 'in' 2.5V rms. Suppressor 'out' 8V rms. Output impedance 3.3k ohm. Rated load impedance Greater than 10k ohm (short circuit protected). Power supply 120V AC, 50/60HZ 7VA, or 220/240V, AC 50/60Hz 7VA. Dimensions 378mm x 298mm x 71mm (W x D x H). Shipping weight 3.7kg (8.161b).

Connections

Connecting to the power supply
The power supply lead enters at the right hand side of the rear panel. Important: Before connecting to the power supply ensure by the voltage instruction label on the back panel that the MRM is suitable for the supply voltage. 1. United Kingdom only. A power supply plug is not fitted and as the colours of the wires in the mains lead of the MRM may not correspond to the colours identifying the terminals in your power supply plug proceed as follows: The BROWN wire must be connected to the terminal in the plug marked V or coloured red. The BLUE wire must be connected to the terminal in the plug marked 'N' or coloured black. A separate earth wire is not required. If a 13 amp (BS1363) plug is used, fit a 3 amp or 5 amp fuse. For any other type of plug protect with a 5 amp fuse or fuse wire in the adaptor or distributor board. 2. Europe and U.S.A. A suitable 2 pin plug is provided for connection to the power supply.
Connections at the rear panel
Connections at the rear panel of the MRM are both RCA and DIN type input and RCA type output sockets to provide the facility to link up to any equipment likely to be used with it. European versions also have a DIN type output socket. The RCA connectors are identified L (left) and R (right), so that a signal into the R connector appears after processing on the R output connector. For convenience, the pickup input and the amplifier output connections are placed at either side of the signal earth ( -t ) terminal respectively. It may be found advantageous to connect a lead between the amplifier or record player and the MRM signal earth terminals, to minimise hum.
Audio connecting leads (U.K. and Europe)
The MRM is supplied with an audio connecting lead specially wired with a 5-pin DIN type plug at one end and RCA type

phono plugs at the other. (Part No. 606/7/79486/001.) MRM Input: Transfer the amplifier end of the signal lead between the record player and the amplifier to the MRM, using, as appropriate, the DIN input socket or the RCA phono input sockets, observing the R and L channel identification markings. MRM Output: Connection to the amplifier from the MRM will be to the following colour coding: Black or Brown plug (RCA) - Socket R (right) White or Grey plug (RCA) - Socket L (left) If the amplifier has a 5-way DIN input socket: 1. Attach the 5 pin DIN type plug on the Garrard audio connection lead to this. 2. Attach the RCA type phono plugs on the other end of the lead to the appropriate output sockets on the MRM, observing the R and L channel identification markings. If the amplifier has RCA type phono input sockets: 1. Attach the phono plugs on the Garrard audio connection
lead to these, observing the R and L channel identification markings. 2. Attach the 5 pin DIN type plug on the other end of the lead to the MRM DIN output socket
Audio connecting leads (U.S.A.)
The MRM is supplied with a phono connecting lead which has RCA type plugs at each end. (Part No. 606/7/79488/001.) Connection to the amplifier from theMRM will be to the following colour coding : Black or Brown plug (RCA) - Socket R (right) White or Grey plug (RCA) - Socket L (left) If the amplifier has DIN type sockets attach a 5-pin DIN plug. The other ends of either type of leads are connected to the MRM as previously stated, and as shown in the following diagram.

Auxiliary input

Amplifier Receiver

LQ O O O O O

Ground

Mains input - -f

(Line cord) Music Recovery Module Mains input (Line cord)
Phono input DIN input Amp. output

Turntable

Mains input (Line cord)
Diagram 1 Connecting leads

Operation

Operating controls
The power supply On/Off switch is at the left side of the fascia panel with an adjacent red indicator light. To avoid switch-on clicks it is advised either that the MRM is switched on before the amplifier or that the amplifier volume controls are at minimum when the MRM is switched on. At the right-hand side of the front panel is the suppressor swttch which activates the scratch suppression circuit, with an associated indicator light to show that the network is in operation when the control is switched in. The large central control knob provides the adjustment for the sensitivity at which the scratch suppression operates. Turning the control clockwise causes the unit to be triggered by small scratches (maximum sensitivity). Turning the control counterclockwise progressively increases the scratch amplitude necessary before triggering occurs. Triggering of the unit is indicated by the suppressor activity light which flashes when a scratch is detected. The user may therefore choose the level at which suppression occurs in order to obtain the best subjective improvement.

Adjusting the controls

With the connections made as previously stated, and a scratched record playing adjustment is then made. Starting with the sensitivity control turned fully counterclockwise and the suppressor switched out, rotate the sensitivity control clockwise until the suppressor activity light commences flashing in synchronism with the scratch to be suppressed. Switch the suppressor circuit in.

Spare Parts List

(For identification see diagrams 2 - 6 )
Ref. Garrard No. Part No. 1 702/4/26585/001 702/4/26564/001 998/4/70277/006 702/7/26572/001 606/4/73278/001 612/7/41332/001 612/7/41332/002 612/7/41302/001 508/4/22429/001 703/4/06094/001 508/4/^2430/001 508/4/22430/001 991/4/02076/097 991/4/02076/097 999/4/00852/008 999/4/00852/008 991/4/01914/004 991/4/01914/004 612/7/41306/001 612/7/41317/001 419/7/41487/002 612/7/41323/001 612/7/41301/001 991/4/02018/099 991/4/01726/005 998/4/83976/001 612/7/41318/001 612/7/41321/001 404/7/08179/001 520/4/95012/001 408/7/51890/001 520/4/95006/001 612/7/41320/001 612/7/41319/001 520/4/95007/001 Ref. Garrard No. Part No. 36 999/4/31037/001 419/7/41435/001 419/7/41485/002 612/7/41333/001 612/7/41327/001 408/7/51889/001 518/4/90640/007 612/7/41322/001 612/7/41338/001 999/4/01911/006 999/4/00852/019 405/7/17125/005 405/7/17125/006 612/7/41337/001 999/4/31023/004 612/7/41303/002 612/7/41303/003 991/4/02000/037 999/4/31048/001 606/7/80077/001 606/2/80078/001 999/4/01145/026 606/7/79486/001 606/7/79488/001 Description 'Heyco' strain relief bush - U.K. and Europe 'Heyco' strain relief bush - U.S.A. Mains lead - U.K. Mains lead with Europlug - Europe Line cord-U.S.A. Chassis label - U.K. and Europe Chassis label-U.S.A. Chassis plate Phono socket (4) Earthing (grounding) terminal 5 pin DIN socket - U.K. and Europe (2) 5 pin DIN socket-U.S.A. (1) Screw- U.K. and Europe (4) Screw-U.S.A. (2) Shakeproof washer - U.K. and Europe (4) Shakeproof washer - U.S.A. (2) N u t - U.K. and Europe (4) Nut-U.S.A. (2) Wiring loom, with input socket SK1 Wiring loom, with output socket SK2 Sub-P.C.B. Fader assembly, complete Fader housing (2) Screw, M3 Nut, M3 (not shown) Light-proof tape, 5 x 260mm Wiring loom, with function control socket SK3 Wiring loom, with sensitivity control socket SK4 Sensitivity control - VR3 Lamp mounting bush, with collar (3) Suppressor switch - SW2 Indicator lamp, diffused red - LED 1 and 3 (2) Control knob, small (2) Control knob, large Indicator lamp, clear red - LED 2 Description 'Rokut' rivet (5) Main P.C.B. - U.K. and Europe Main P.C.B. -U.S.A. Fascia panel Fascia panel spacer (3) Power supply switch - SW1 Fuse lOOmAT-FSi Wiring loom, with power supply socket SK5 Pillar (3) Nut, M5{6) Shakeproof washer, M5 (3) Power supply transformer - TR1 - U.K. and Europe Power supply transformer - TR1 - U.S.A. Transformer plate Nylon washer, M3 (8) Cabinet - 'black sand' finish Cabinet - 'walnut' finish Crinkle washer (2) Screw, M3 (2) Isolator foot (4) Isolator bush (4) Screw (4) Audio connecting lead (phono/DIN plug) U.K. and Europe Audio connecting lead (phono/phono plugs)-U.S.A.

Miscellaneous parts (not illustrated) 612/7/41313/001 612/7/41334/001 612/7/41335/001 612/7/41312/001 612/7/41312/002 Packing carton Polystyrene packing piece (2) Cardboard packing piece (2) Customer's instruction leaflet-U.K. and Europe Customer's instruction leaflet- U.S.A. Signal ground connecting lead
Printed Circuit Board Components
Reference numbers are those used on diagrams 10, 11 and 12. Components without a 'Garrard Part Number' are proprietary items and should be obtained locally.

Ref. No.

Garrard Part Number
Description Resistors !/3 watt 5% unless otherwise stated 47K 10K 100K 680R 2K2 360K Yswatt 2% 39K 3K3 3K3 3K3 4K7 2K7 56K 820R 1M 120K 120K 3K3 3K3 1M 39K 51K 3K3 22R 10K 1K5 47K
R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127

/3 watt

!/ 3 watt

Continued on page 9

Diagram 2 View from above - cabinet removed
Diagram 3 View inside rear panel

Bi YELLOW

YELLOW <3QM.

b - LI (

'^i-''

LI PlKjV^

F ^ s.

ytuLow,

BLAC^. E-uACk.
^sJc j ^s^OKJE. Kl OK) BLACK:.

PuRPLt * d

YELLOW

BLACK. OCLAKJE.-*

T T C F L A T OKJ JL.E.D
ke-D. ' l ^ s j i SoPpLy IXADfevVKR 5-'!'^ LEAD.

&L

5 BCLOWNI.

u Mo Kit _

Diagram 4 View inside front panel

Diagram5 Cabinet fixing

Diagram 6 Audio connecting leads

SPIGOT

SPiGO i MOLE. ;

KASSIS

FASCIA

SoPPuED pcT JT i O M

Diagram 7 Potentiometer and switch fixing

p L A T OKJ L.e.D F L

CHASSIS
Diagram 8 Indicator lamp fixing
Diagram 9 Removal of 'Rokuf rivet
Diagram 10 Circuit diagram
Diagram 11 Main P.C.B. layout

4i9/MA/4T488/00t r$5.A

Diagram 12 Sub P.C.B. layout 8

Spare Parts (continued)

Ref. No. R128 R129 R130 R131 R132 R150 R151 R152 R153 R154 R155 R156 R157 R158 R159 Garrard Part Number Description 47R 100R 22K 8K2 3K9 22K 22K 100K 100K 36K 22 K 22K 18K 33K 10K

lOK lOK

R160 R161 R162 R163 R164 R165 R166 R167 R168 R169 R170 R171 R172 R173 R174 R175 R176 R177 R178 R179 R180 R181 R182 R183 R184 R185 R186 R200 R201 R202 R203 R204 R205 R206 R207 R208 R209 R210 R211 R212 R213 R214 R215 R216 R217 R218 R219 R220 R221 R222 R223 R224 R225 R226 VR1 VR2 VR3

5K6 10K 10K 10K

5K6 5K6 15K 15K 10K

10K 8K2 470R

10K 27K
2K2 18K 150R 330K 330K 180K 180K 470K 470K

10K 47K 10K

100K 680R

360K 39K

3K3 3K3 3K3 2K2 22K 56K

y3 watt / 3 watt

120K 120K

250V 250V 250V 100V

25V 35V

+ 50% - %

5% 5% 5% 5%

0.47M 0.47M

100n 100n

10n IOn 10n 10n 220M

100 V 100V 100V 100V 500V 500V 500V 500V 25V 500V 100V

20% 20%

10p 470n
470p 220n I 680p 10On 68p 22p 330n 1n5 470n 100n

2200M I

500V 100V 63V
+40% - % +40% - % + 40% - % +40% - % + 50% - % 10% 10% 10% / 2 % 20%

435/4/91010/021

435/4/91010/024 402/4/56423/043 435/4/91010/125 435/4/91010/021
500V 100 V 500V 500V 100V 63V 40V 100V 100V

+75% - % +75% - % 20%

10% 10% + 50% - % 10%

5% 5% 2V2%

Garrard Part No.
Description Transistors BC413 BC413 BC214C BC184C BC214C BC214C BC413 BC413 BC214C BC184C BC214C Diodes 1N914 1N914 1N914 1N914 1N914 1N914 integrated Circuits
TR101 TR 102 TR103 TRICM TR 105 TR 106 TR201 TR202 TR203 TR204 TR205

D1 D2 D3 D4 D5 D6

IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC8 IC9 IC10 IC11
446/4/02981/001 446/4/02978/001 449/4/01396/001 449/4/01396/001 449/4/01397/001 449/4/01394/001 446/4/02983/001 446/4/02983/001 446/4/02983/001 446/4/02983/001 446/4/02985/001
LM320 MP15 LM342 15P TDA1022 TDA 1022 HEF4011 HEF4013 RC 4136 DB RC 4136 DB RC4136 DB RC 4136 DB NE 555V Various Bridge Rectifier 100mA Fuse (20mm) 100mA Resistor- Light Dependent L.E.D. Thru-line' 4-way P.C.B, plug Thru-line' 4-way P.C.B, plug Thru-line' 9-way P.C.B, plug Thru-line' 6-way P.C.B, plug Thru-line' 7-way P.C.B, plug
DBR1 FS1 LDR1-^ LED4,5 PL1 PL2 PL3 PL4 PL5
415/4/04366/001 518/4/90640/007 520/4/95009/001 520/4/95008/001 508/4/22404/002 508/4/22404/002 508/4/22404/009 508/4/22404/007 508/4/22404/001

40V Timelag (4) (2)

Reference numbers in brackets are those used on diagrams 2-6.

Dismantling

To remove the chassis from the cabinet
1. Turn the power switch to 'Off' and disconnect the module from its power supply. Unplug any input, output or signal ground leads from their sockets at the back of the module, noting locations for reassembly. 2. Turn the module upside down, place it on a protective surface and remove four screws (44) from the isolator feet (42), being careful not to lose the associated bushes (43). Remove both remaining screws (41) and washers (40) from the bottom of the cabinet and turn the module the right way up again. 3. The chassis can now be withdrawn from the front of the cabinet, taking care not to damage the top of the transformer (36) in the process. Lift the front of the chassis to ease its rear flange out through the cabinet. Do not use force and take care to avoid tension on the power supply lead as the chassis emerges. When refitting the chassis, ease the transformer and wiring iooms under the front edge of the cabinet.

top and bottom of the bush inside the chassis, using a pair of pliers, while pushing the bush out through the back of the chassis.
To remove the fascia panel (28)
1. Pull off the small power switch and suppressor control knobs (23) and the large suppressor sensitivity knob (24). 2. Take the nuts off the three control spindles and remove the fascia panel, taking care to retain the spacers (29) fitted between the panel and the chassis. Do not scratch the aluminium panel.
To dismantle the fader assembly (13)
1. Remove the chassis from the cabinet. 2. Take out the screw (15) securing the two black housings. 3. Unwind the black tape or release the black light-proof band from around the housings and lift off the top housing. The components are all now accessible. it is most important for correct operation that the backs of the light dependent resistors and L.E.D's are all seated flat against their respective faces in the cavities in the bottom housing.
To remove the printed circuit board (P.C.B.) (27)
CAUTION: When handling the P.C.B., take care not to bend it. 1. Dismantle the chassis from the cabinet as already described. 2. Unplug all connectors from the P.C.B., noting their locations for reassembly. 3. Eight 'Rokut' rivets (26) or five rivets and three nuts - secure the P.C.B. to the chassis. Remove the rivets, by driving their central spigots upwards through the P.C.B. until they can be withdrawn from the top of the board. (A small screwdriver is a convenient tool.) Remove any remaining fixing nuts and washers from the bottom of the chassis. Finally, press the rivets up through the chassis to release the P.C.B. Note: When refitting the P.C.B. check that all spacer washers (38) are in place. To refit the rivets, press them back down through the P.C.B. and chassis, then push the central spigots down until they are flush with the top of the domed rivet head.
To remove an indicator lamp (L.E.D.) (22 or 25)
1. Dismantle the chassis from the cabinet. 2. Lever the collar off the mounting bush (20) - away from the chassis flange - and withdraw the lamp. 3. Carefully cut away both heat-shrink insulated sleeves and unsolder the lamp connections, noting which lead is nearer to the flat on the L.E.D. mounting flange. 4. When reassembling, insulate both connections again using replacement sleeves or P.V.C. tape. Press the lamp fully into the mounting bush, before refitting the collar. To replace a mounting bush it will be necessary to take off the fascia panel, remove the collar and lamp and press the bush out through the front of the chassis flange.

To remove power supply switch, sensitivity control or suppressor switch
1. Dismantle the chassis from the cabinet and take off the fascia panel (28) - see previous paragraphs. 2. Unsolder the connecting leads, after noting their positions on the control terminals, and withdraw the control. When reassembling note that all controls have spigots which must locate in corresponding holes in the chassis. Refit the three spacing washers behind the fascia panel.
To remove the power supply lead (2)
1. Dismantle the chassis from the cabinet as already described. 2. Unsolder the lead from the power switch terminals (30). 3. The lead is secured to the back of the chassis by means of a moulded 'Heyco' bush (1). To release the lead, compress the

Test Procedures

Instruments required
(a) Dual channel oscilloscope, with timebase accuracy better than 5% (preferably better than 3%). (b) Toneburst generator, capable of a single cycle toneburst 1.6kHz fundamental, IQHz repetition rate, or Pulse generator, capable of generating a doublet pulse of 600ps duration, 10Hz repetition rate. (c) Sinewave oscillator, producing 20Hz, 1kHz and 20kHz. (d) DC voltmeter, to measure 25V 2V. (e) AC millivoltmeter, to measure from 9V rms to 20mV rms, 20Hz to 20kHz, better than 0.5dB. (f) AC microvoltmeter, to measure 50pV rms to 200V rms, bandwidth 20Hzto 20kHz. (g) Counter/timer, to measure up to 100kHz. (h) Distortion factor meter, to measure less than 0.01% distortion. (i) Low-distortion oscillator, less than 0.01% distortion at. 1kHz.
1. Indicator lamp polarity and operation Conditions: Connect the MRM to a power supply of appropriate AC voltage - as shown on its back panel. Short circuit both input channels. Switch the power on and suppressor in. Check: Power and suppressor indicators are operative. 2. Transformer Instrument: Conditions: Check: and loading DC voltmeter. As for Test 1. DC voltage on both main power supply capacitors (C115, C215) to be 21V 3V.
3. Channel balance and output Instruments: Sinewave oscillator, oscilloscope, AC millivoltmeter. Conditions: Switch suppressor out. Apply 1kHz sinewave signal to input terminals in turn. Check: Channel balance must be better than 1dB. Maximum output before visible clipping to be greater than 7V rms.

ATTENUATION

WAVEFORM ENVELOPE
TIMING IN MILLISECONDS - AFTER INPUT PULSE
Diagram 14 Oscilloscope w a v e f o r m - test 10

Pre-amplifier TR101 ,,.^

Bias adjust VR1 Filter & Amplifier

T 13 R0

TRIQI Right_ Channel V

(k\ Delay line IC4

7 V rms
Fascia panel sensitivity control OV ' +15V Fader Delay line, 2 phase clock Buffer
Output De-emphasis and Buffer 1/4 IC7

IC5 & IC6

3C sCSnsec-
Buffer 11/A-ICIO Output De-emphasis and Buffer MU IC7

C Sj- seccr.Cs DC-' see

Filter & Amplifier
Chamei Pne-amplifier TR201 TR202 TR203 TR204
KEY: 1 : Detector 3/4IC9 C Bias adjust VR: Comparator 1/4IC: Monosfable 11 C 4 : Monostable TR106

Diagram 13 Block diagram

4. RIAA frequency response Instruments: Sinewave oscillator, AC millivoltmeter. Conditions: Switch suppressor out. Check: Gain at 20Hz to be +16.406 LdB. Gain at 20kHz to be -19.608 i.dB. Both with reference to gain at 1kHz. Test both channels. 5. Maximum delay line dynamic range and gain balance Instruments: Sinewave oscillator, oscilloscope, AC millivoltmeter. Conditions: Switch suppressor in. Apply 1kHz sinewave (1) signal to inputterminals in turn. Adjust preset potentiometers (VR1, VR2) for minimum visible clipping at 2V rms output. This will have a limited effect on the nominal 7V DC test voltage shown at the delay line output (IC4, pins 8 and 12). Check: Distortion at 2V rms at 1 kHz must be less than 1 %. Channel balance at 0.3V rms output must be 2dB. Switch suppressor out and recheck. Conditions: (2) Switch suppressor in. Apply 50mV rms at 20kHz sinewave to input terminals in turn. Adjust preset potentiometers (VR1, VR2) for minimum distortion and 'fuzz' on output signal.
11. Delay line gain Instruments: Sinewave oscillator, AC millivoltmeter. Conditions: Switch suppressor in. Apply 1kHz sinewave to both input channels to obtain 200mV rms nominal output. Check: Channel balance to be better than 2dB. Difference in output between suppressor switched out or in must be within 2dB on both channels. 12. Delay and processing frequency response instruments: Sinewave oscillator, AC millivoltmeter. Conditions: Switch suppressor in. Apply a 1 kHz sinewave input to both channels to obtain a 200mV rms nominal output. Check: Gain at 20Hz must be 16.4dB LdB. Gain at 20kHz must be - ^. d B 1.5dB with reference to arbitrary OdB at 1kHz at approximately 200mV rms output. Test both channels. 13. Preamplifier ('straight through') noise Instrument:. AC microvoltmeter. Conditions: Switch suppressor out. Short-circuit both input channels. Check: Output hum and noise, 20Hzto 20kHz, must be less than 80V rms. 15. Preamplifier output Instruments: Sinewave oscillator, AC millivoltmeter. Conditions: Switch suppressor out. Apply 1kHz sinewave input to both channels. Check: Output before visible clipping must begreater than 7V rms. 16. Preamplifier distortion Instruments: Sinewave oscillator, distortion factor meter, AC millivoltmeter. Conditions: Switch suppressor out. Apply a 1 kHz sinewave inputto both channels, to give approximately 200mV rms output. Check: Distortion must be less than 0.01%. 17. Delay line distortion Instruments: Sinewave oscillator, distortion factor meter, AC miilivoltmeter. Conditions: Switch suppressor in. Apply a 1kHz sinewave input to both channels, to give approximately 200mV rms output. Check: Distortion must be less than 0.10%. 18. Delay line noise Instrument: AC microvoltmeter. Conditions: Switch suppressor in. Short circuit both input channels. Check: Output hum and noise, 20Hz-20kHz, must be less than 200MV rms.

6. Detector operation (part of) Conditions: Switch suppressor in, set suppressor sensitivity control to maximum. Check: With no input, the suppressor activity indicator must not light. 7. Delay length Instrument: Counter/timer. Conditions: Switch suppressor in. Check: Clock frequency must be 80kHz to 92kHz. 8. Detector operation (part of) Instrument: Toneburst or pulse generator. Conditions: Switch suppressor in. Apply a single cycle toneburst or doublet pulse at 10Hz repetition rate, 1.6kHzfundamental or 600s duration, of 5mV peak-to-peak amplitude, to one input channel. Short-circuit the other input. Set suppressor sensitivity control to maximum. Check: The suppressor indicator must flash. Reverse channels and recheck. 9. Blanking operation (part of) Instrument: Toneburst or pulse generator. Conditions: As for Test 8, but with amplitude increased to lOOmV peak-to-peak. Check: The attenuation of the toneburst, between suppressor switched out and in must be greater than 50:1. 10. Blanking operation (part of) Instruments: Toneburst or pulse generator, oscillator and oscilloscope. Conditions: Switch suppressor in. Apply a signal source as for Test 8, but with amplitude increased to 100mV peak-to-peak, to one channel. Apply a 1kHz sinewave signal, 5mV rms amplitude to the other channel. Trigger the oscilloscope with the pulse input and observe the sinewave output. Check: From the start of the input ('scope trigger) pulse, the waveform must reach 100% 25% of the prior level within 5ms. It must stay at 100% 25% until it reaches 100% 10% of the final value after a total of 35ms. Reverse channel inputs and recheck. See oscilloscope waveform, diagram 14.
Printed by Borough Press (WItshire) Umited

Canberra Theatre Centre

Canberra Theatre

Technical Specifications

Updated 15/12/2010
Technical Director: Rohan Cutler Phone number: 5736 Mobile Number: Fax number: 5721 Email address: rohan.cutler@act.gov.au Venue: Phone number: Fax number: Website:
www.canberratheatre.org.au
Additional contact details are located on the final page
Generated from the APACA Technical Specifications Template. For more details visit www.apaca.com.au
CTC Canberra Theatre TechSpecs11
STAGE Brief Stage Description:
Unraked stage with a proscenium arch and flying facilities. Hardwood floor covered with Masonite sheets. Screwing into surface permitted but larger holes to be authorised by Head Mechanist. Stage crossover behind US fly line. Stage distributed load limit Stage point load limit Stage rake 750kg/m2 Not Known No

Stage Dimensions:

Proscenium Width Height 16.9m 5.8m
Setting Line In line with House Curtain Distance From (SL = Setting Line, CL = Centre Line) SL to DS edge of apron 2.1m SL to DS edge of Orchestra Lift/Pit 6.1m SL to first fly line SL to last upstage fly line SL to rear wall CL to OP wall (or obstruction) CL to PS wall (or obstruction) Stage to underside of grid 220mm 10.2m 18m 9.8m 18m 15.7m
Overhead obstructions Fixed bridge at 7.2m above stage level between 400mm and 1m US of setting line.

Auditorium:

Raked single level with central crossover. Seating capacity with additional Orchestra lift/pit seating installed Seating capacity without Orchestra lift/pit seating installed 1244 1189

Page 2 of 19

Orchestra Lift / Pit:
Orchestra Lift A motorised orchestra lift is operational Set positions for orchestra lift where lift at auditorium level is 0mm Stage level at +1000mm above auditorium. Orchestra pit level at -1400mm below auditorium. Lift can be set at any height SWL of orchestra lift Dimensions of the orchestra pit Yes 3.5 Tonne 4.2m x 15m
Orchestra pit maximum capacity 45 - 50

Flying Facilities:

Fly System Single purchase handline system. Fly System Details Operating Position Total number of Lines Panorama Lines Batten Drift Batten Type Batten Length Batten Extensions Batten Pick-ups Batten Point Load Batten W.L.L. Cradle Capacity LX bars can be swung OP at stage level. bars OP, 2 bars PS, electrically winched. 14m 75x50mm batten. 16m N/A 4 Pick ups Not Known 500 kg 340 kg Yes

Fly bars can be swung No

SEE HANGING PLOT FOR LINE ALLOCATIONS AND FURTHER INFO

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Hanging Plot:
SL: Setting Line as indicated previously Line Type: SP = Single purchase, DP = Double purchase, MW = Motor Winch, HW = Hand Winch, HL = Handline W.L.L.: Maximum distributed load including bar weight

Line #

Distance from SL

Line Type

Intended Use W.L.L

Venue Allocation

House Curtain
(hiring company use) Electric French action available

530 700

SP SP SP SP

Pro Border Pro Legs LX 1 Not available for use Not available for use

6650 6800

SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP

Border Legs LX 2

Mid Tabs Border Legs LX 3

LX 3a Border Legs LX 4

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10000 10200

SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP

LX 4a Border Legs LX 5 Flood Bar

LX 5a Tabs Cyclorama

Drapery:
*Type House Curtain Borders Legs Tabs / Smother Cyclorama Scrim Scrim Panorama Tabs Material
Velour Flat Wool Flat Wool Flat Wool Plastic Sharks tooth Sharks tooth Flat Wool
Colour Blue/Grey Black Black Black Opal Black White Black
Width 18m 16m 4m 16m 16.5m 16m 16m 10m
Height 6.9m 3m 7.3m 7m 8.2m 6.7m 6.7m 10m

Quantity 1 2

Access Equipment:
Elevated Work Platform Genie GS-1932, operator driven. Maximum reach is 5.8m Upright UL-40, push around vertical lift. Maximum reach is 12m Tallescope Maximum reach is 5.9m EWP Restrictions With both the Upright UL-40 and the Tallescope, outriggers must be used and one staff member must be located at the base whilst in use.

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Ladders 2 x 1.8m wooden stepladders 2 x 3.5m wooden stepladders 1 x 3m aluminium stepladder 1 x 4.51m x 7.87m aluminium extension ladder.

Staging Units:

30 timber rostra with metal scissor action adjustable legs. 1000 x 2000 with height adjustable in 200mm increments. (i.e., 200mm, 400mm, 600mm, 800mm, 1000mm)

Stage Covers:

Style Dimensions Colour Tarkett 8 rolls of 2m x 12m Black

Stage Traps:

Safety Curtain:
Safety Curtain installed Yes Safety Curtain must be unobstructed at all times Yes Thickness of Fire Curtain 200mm Distance from setting line 300mm DS
Note: Measurement is to the downstage edge of the Fire Curtain.
Additional Requirements Curtain must remain in the down position whilst venue not in use.

Loading Dock:

Access Truck access via back laneway. Entry to this laneway is via the Northern car park at the rear of the Canberra Playhouse. Loading Dock Height Door Dimensions Street level 4.5m High 4.0m Wide Restrictions / Obstructions Unloading/loading ramp required. Ramp required if equipment cannot be unloaded with a forklift.

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Additional Rigging Notes
Rigging points O.P. and P.S. of orchestra LX bar 500kgs W.L.L. The Head Mechanist is only too pleased to answer any questions with regards to rigging.

Staging Notes:

All flown items must be rigged with rated equipment and is subject to approval by a venue representative. There is limited rigging gear available in house. Including lifting straps, FSWR lines, shackles and some pulleys. Forklift and licensed operator available onsite.

LIGHTING Positions:

Stage LX Bars All Stage LX bars except for LX 1 can be swung See hanging plot for standard LX bar locations FOH Orchestra Bar Setting Line to lighting bar Usable bar width FOH Concert Bar Setting Line to lighting bar Usable bar width FOH Bridge #1 Setting Line to lighting bar Usable bar width FOH Perches (PS & OP) Setting Line to FOH Perch Maximum lanterns per perch 8 3.8m @ centre, curved to 2.5m at each end 16m 10.6m 5.4m 15.3m 18.6m 6.5m
Distances are to the highest downstage point of boom or perch.

Control:

Lighting desk Control channels Signal output Signal distribution Strand 530i 800 DMX 512 Two Streams of DMX Yes
Remote riggers available onstage

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Dimmer Racks:
Total Dimmers Dimmer Locations 2.4Kw Dimmer Racks Bytesize 244
Total dimmers @ 2.4kw per dimmer 24 5Kw Dimmer Racks Total dimmers @ 5kw per dimmer Strand JTM analogue 220

House Lights:

Independent control Control positions Fade time adjustable Yes Control Room, Prompt Corner and Auditorium. Yes at Control room only

Stage Luminare:

Profiles
Make Model Angle Detail / Accessories Watt Total
Altman Prolite Prolite Prolite Prolite
Shakespeare PR10-ZPM PR10-ZPM PR10-ZPM PR7

20 15/30 15/30 15/30 20

Prolite Prolite Prolite Strand Strand Strand
PR7 PR5-ZPM PR5-ZPM SL Patt 23 Mk2 Patt 23 Mk2

20 15/30 15/30 15/20

Rigged FOH Bridge 1 to give a 4 colour wash Rigged FOH Box Booms to give a 4 colour wash Rigged FOH Concert bar Storeroom Rigged 4 on each LX bar incl. Orchestra Bar (Break up gobo wash) Storeroom Rigged 4 on each LX bar incl. Orchestra bar Storeroom Storeroom 8 on each stage perch and flown side ladders Storeroom

500 500

Fresnels
Make Model Detail / Accessories Watt Total
Prolite Prolite Prolite Prolite Prolite

PR14 PR14 PR14 PR22 PR22

Rigged Orchestra bar to give a 5 colour wash incl. o/w Rigged 8 on each LX bar for an o/w wash Storeroom Rigged 8 on each LX bar to give a 4 colour wash Storeroom Barn doors available for all the above.

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Par Cans

Par64 Wash

Make Model
Single 110V on hook clamp with splitter

Detail / Accessories

Ianaro Ianaro Selecon

Pallas 4 Pallas 4

4 cell ground row 4 cell rear flood bar (semipermanently hung u/s of cyc) 4 cell front flood bar (Line 55)

Followspots:

Selecon

Performer

6 colour magazine

Additional Lighting:

Item Make Model Detail / Accessories Watt Total

Martin

Pro 400
5 on each LX3a, 4a, 5a to give an overall backlight wash

200 MSR

Patching:
Location Quantity Numbering

(PS to OP)

Rear FOH (near control room) PS FOH Bridge 1 CS FOH Bridge 1 OP FOH Bridge 1 CS Concert bar CS FOH Orchestra bar PS FOH Perch OP FOH Perch PS Pit Wall OP Pit Wall PS Fly Floor PS Fly Floor Rear wall of fly tower U/S PS Fly Floor PS & OP Grid PS Perch PS D/S OP Perch OP D/S
Dimmers 59,60,61 appear here as well Dimmers 59,60,61 appear here as well Dimmers 59,60,61 appear here as well
Flown Spot bars numbered from D/S Front Flood bar Rear Flood bar (semi permanently patched) These dimmers are also on the OP Fly floor Flown Ladders Attached to Tormentor Situated low to the stage floor (not a well) Attached to Tormentor Situated low to the stage floor (not a well)

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OP U/S Wall box PS & OP Floor Wells PS & OP U/S Floor Wells PS & OP U/S Floor Wells U/S Stage Wall box PS Fly Floor

221 244

Wells 1 & 206 Wells 2 & 4 Well 5 Well 6 for Ground Row

Bytesize racks

Power:
3 Phase Outlets 4 x 32 amp 3phase outlets in Prompt Corner 3 x 32 amp 3phase outlets US OP

Cabling:

240v Extension Cable 100 x 10m 50 x 7m 50 x 5m Looms 10 x 4-way at 15m 3 phase Extensions 2 x 20m

Lighting Notes:

FOH standard rig gives an excellent front 4-colour wash 10 x 2m five rung wheeled floor ladders available (1 lantern per rung.) The ladders are extendable to 4 m with attachable pipe. On stage spot bars have 24 circuits each and are 13m in length 100 amp 3 phase supply available on PS (Licensed Electrician to wire in) 250 amp 3 phase supply available on OP (Licensed Electrician to wire in)

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Audio:
Control Points: Control Room Location Detail Yes Bio box
Auditorium YES Location Detail S&T rows 20-27 centre Total seat allocation 16 4m x 1.7m Other Prompt corner, Patching to amp room, foldback and bio box and FOH Control & Amplification: Control
Lake Contour, Integrated Signal Processors with all parametric E.Q. & Time Alignment set for all FOH, Sub, UPA-1A delay ring, UPA-1A foldback and front fill speakers. NB: (House EQ may be altered with EQ Layer on request.)
Primary Mixer: Digico SD8 + Madirack (Madirack: 48 mic I/P, 16 line O/P) (SD8: 60 stereo or mono channels, 8 local XLR I/P, 8local XLR O/P, 8 local AES/EBU I/P & O/P, 24 mix bus, 12 DCA, 12 x 12 matrix, 6 FX, 12 Internal 31 band EQ) Yamaha M7CL, 32 mono i/p, 4 stereo i/p, 16 omni o/p including LCR DDA QII, 18 mono, 6 stereo, 8 Aux sends, 8 x matrix, 8 groups, LCR Secondary Mixer Yamaha DM1000 Yamaha 03D, 8 mic, 16 line, 4 aus, 4 bus, LR Note: all mixing consoles are shared across venues, please check on availability. Amplifiers FOH: QSC PL230 x 11. 575 watts @ 8ohms FB: Richardson Audio 4 ch x 2, Crest CKS 800 x 2 EQ Klark Technic DN360 x 3
FX TC Electronic M2000 x 2 Compression / Limiter/gates dbx160A x 2, dbx1074 x 2, dbx1046 x 2, TC Finalizer x1, see consoles. Speakers: FOH Speakers Meyer UPA-1C x 4 vertically arrayed pair D/Stage either side of Proscenium Arch Meyer UPA-1C x 2, one as centre and one as down fill Meyer USW subs x 2 horizontally arrayed in Proscenium, behind center speaker Meyer UPA-1C x 3 delayed, mid auditorium, O/P, P/S and centre JBL LSR6325 self powered studio monitors x 8, embedded in stage lip at regular intervals as front fill.

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Foldback Meyer UM-1P x 8, 350w self powered, 45 x horn Meyer UPA-1A x 4, permanently mounted on ladders, O/P and P/S Meyer UPA-1C x 2 permanently mounted on tormentor as side fill, O/P and P/S Playback:

CD player MD player

Denon Denon

DN-C680 DN-M1050R

Detail
Single CD player Single Minidisc player/recorder

Microphones:

Make Shure Shure Shure Shure AKG AKG AKG AKG AKG Earthworks CAD Beyer Model BetaSM87A BetaSM58A SM58 SM57 CK93 CK98 SE300B 451 C414 TC 40K ST 100B M88 Detail / Accessories Clips Clips Clips Clips Clips Clips Clips Clips Clips Clips Cables Clip Use Vocals Vocals Vocals Instruments Instruments Distance micing Preamp for 93/98 Instruments Various Various Boundary Instrument Total 4 2

Accessories:

Microphone stands Microphone stands Microphone stands Microphone stands
Round base Tri base Tri base Tri base
Straight Straight Boom arm tall Boom arm short

Line Patching:

Location
P/S to FOH Position FOH to P/S P/S to audio bio box O/P side to P/S link Audio bio box to FOH

Quantity

Numbering
1-18, 19-36 1-12 1-20 1-20 1
Stage to FOH Returns to stage 16 sends, 4 returns 16 send, 4 returns 1 link

Speaker Patching:

Location Redundant speaker patching available on XLR Quantity
PC to various stage points

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Audio Cable Canare cable with Neutrik connectors x 32 various lengths. Good selection of patch cables. Multicore
JANDS JANDS x1 x2 50m (12 XLR Male Tail to 12 XLR Female Stage Box) 25m (12 XLR Male Tail to 12 XLR Female Stage Box) x1 25m (12 XLR Male Tail to 12 XLR Female Stage Box)

PA PEOPLE

CTC x1 15m (4 XLR Female Tail + Single Phase 240V to 4 XLR Male Stage Box + 4 Linked Single Phase 240V Outlets) CTC x1 30m (4 XLR Female Tail + Single Phase 240V to 4 XLR Male Stage Box + 4 Linked Single Phase 240V Outlets)
Power: AUDIO ONLY distributed 240V with RCD Earth Leakage protection FOH Position xamp circuits. DS: OP xamp circuits. DS: PS xamp circuits. Audio Booth xamp circuits. DS: PS xamp 3 phase.

Audio Notes:

- Microphone inventory is shared between Canberra Theatre and The Playhouse. Please check for availability. - Lake Contour processors are used on FOH and can be configured with a separate sub input. As standard, sub is derived from L&R As standard, the sound hold (S&T 20-27) measures 4m x 1.7m deep. R+S+T 20-27 measures 4m x 2.55m R+S+T 16-27 measures 6m x 2.55m

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AUDIO VISUAL Projection Room:

Projectors:

Hired as required

Screens:

Projection Screen Cyclorama can be used for front or rear projection. Otherwise screens are hired as required and can be flown from any convenient fly line. Screen dimensions surfaces Additional Screens NA Screen dimensions NA 9 x 12 & 12 x 16 locally available with front or rear

AV Playback Equipment:

DVD player

Sony HX-710

Single DVD player/recorder
Projector Rigging Points:
Projector cradles can be rigged from any available horizontal bar or fly line.
Video coaxial and VGA cables available. 50m of each. Patching, composite VDAs and monitors available. No large format screens.

Audio Visual Notes:

No video link available between FOH mixing position and stage. Video link between bio box and stage is available. Limited amounts of video links are available from prompt corner to various areas in the theatre. 8m from back wall to Cyc. 14m from orchestra bar to Cyc. Front projection is difficult from within the auditorium due to the angle required to clear the proscenium arch.

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BACKSTAGE:
Communications: Stage Managers Desk SM console prompt corner, movable, light and phone Talkback Master Unit Total sub stations Total headsets
Clearcom MS440, 4 loops 12 12
Radio Units In-house BTR800, 4 x TR825 beltpacks Talkback patching located at - Fly Rail O/P DS and US - P/s corner (master unit) - FOH position - Bio box - SM console - P/S midstage - Production desk (auditorium) - Follow spot positions
Paging / Show relay Paging to the dressing rooms and Green room is available from the stage managers desk. Show relay is distributed to all dressing rooms and green room. Dressing rooms 1 & 2 have individual volume controls. Stage Monitor Green room, SM desk, dressing room corridors, bio box, tearoom, stage door, foyer, dressing room 1 Q Light System In house Q light system Number of units

YES 4 units

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Dressing Rooms:

Dressing Room Capacity Toilets Shower Details
Dressing Room 1 Dressing Room 2 Dressing Room 3 Dressing Room 4 Dressing Room 5 Dressing Room 6 Dressing Room 7 Dressing Room 8 Dressing Room 9 Dressing Room 10 Dressing Room 11 Dressing Room 12

Yes Yes

Star room 1 with private wc & shwr Shared WC / SHWR Ground Floor Shared WC / SHWR Ground Floor Shared WC / SHWR Ground Floor Shared WC / SHWR Ground Floor Shared WC / SHWR Ground Floor Male Chorus First Floor Female Chorus First Floor Shared WC / SHWR First Floor Shared WC / SHWR First Floor Shared WC / SHWR First Floor Shared WC / SHWR First Floor

Laundry / Wardrobe:

Washing Machines 1 x Maytag 7.5 kg, 1 x Fisher & Paykel 8.0 kg, 1 x Bosch 6.5 kg front loader 2 x SpeedQueen 9.0 kg, 2 x Hoover 5.0 kg Drying rooms Iron / ironing board Clothes racks N/A 2 x Philips Irons, 1 x Propress Steamer Dressing rooms built-in and 3 x mobile racks

Dryers

Production Facilities:
Production Desk Production desk set-up in the centre of stalls. Table accommodates 2 people. Talkback and VDU mimic of lighting desk output available. Production Office Two Production offices available on first floor level backstage. Phone One digital and two analogue metered lines available in each office. Fax Two analogue lines available as above. Access to phone for Internet access Two analogue lines available as above. No broadband available. Pay per use WiFi available within Centre.

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Greenroom:
Tea / Coffee facilities Fridge / freezer Microwave Running water BYO tea / coffee. Boiling water on-tap Yes Yes Yes

Stage Door:

Access Stage Door is located on the Eastern side of the building, accessed from the laneway (Knowles Place). A Stage Door person will be rostered on for any period that a hirer requires access to the backstage area.
ADDITIONAL FACILITIES & INFORMATION Orchestral:
Wenger music stands with clip-on lights available. Wenger adjustable chairs available. Both items are shared with other venues in the Centre. Upright piano is available. Steinway Grand is available for hire Tuning charged at cost.

Rehearsal Space:

Courtyard Studio, 10m x 15m, concrete base with timber parquetry. Booking required for use.

Staffing:

Technical minimum staffing levels are 1 x Lighting, 1 x Mechanist, 1 x Audio and 1 x Stage Door person.

VENUE: Venue Contacts:

Venue Address Canberra Theatre Civic Square London Circuit Canberra City 2608 Canberra Theatre Centre. PO Box 226 Civic Square Canberra City 2608

Venue Postal Address

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Staff Contacts:

Head of Lighting Mobile Email Address Phone Number Head of Staging Mobile Email Address Phone Number Head of Audio Mobile Email Address Phone Number Administration Phone Number Email Address Fax Number Box Office Phone Number Email Address Fax Number Stage Door Phone Number Stage Phone Number Andrew Tweedie 250 Andrew.Tweedie@act.gov.au 5734 David Tongs 371 David.Tongs@act.gov.au 5758 Gregor Murray 372 Gregor.Murray@act.gov.au 5759 Jarrad West (Venue Booking Coordinator) 5710 Jarrad.West@act.gov.au 5721 Sarah Lewis (Box Office Manager) 9377 Sarah.Lewis@act.gov.au (Manned as required) (Manned as required)

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Venue Plans:
Venue Plan Available YES, hard copy at 1:50 can be mailed, or a PDF or DWG file emailed upon request. Plan is available for download on the APACA website. Venue Section Available YES, hard copy at 1:50 can be mailed, or a PDF or DWG file emailed upon request. Plan is available for download on the APACA website.

Venue Information:

The Canberra Theatre Centre has three venues available for hire: The Canberra Theatre 1244 seats stalls only The Canberra Playhouse 618 seats, stalls and two balconies The Courtyard Studio has 90 seats available in two different configurations. The Canberra Theatre Centre reserves the right to change its inventory and specifications from time to time.

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