Shure M71C Manuals

222 HARTREY AVE., EVANSTON, l i . 60204 U.S.A. AREACODE312/328.9000 . CA8LE:SHUREMICRO MODEL M71C DATA SHEET EASY-MOUNT STEREO DYNETIC@ PHONOGRAPH CARTRIDGE SPECIFICATIONS M71 AND M73 CARTRIDGE SERIES N71 AND N73 STYLI SERIES Model Diamond Stylus Number Replacement 5 cm/sec.) ~ ~~- Side Contact Radius: .0004" (.010 mm) Frontal Radius : .0007" (.018 mm) M71-6 NB71-6 Radius: / 6.2 ~nillivolts 1 Beige 1 l?b to 3 / ,0006" (.OX mm) - *The N75-3 stylus may be used to reproduce the standard 78 rpm records. In this case, the amplifler should be set to "Mon- aural" or "A+B." TRACKABI L I T Y : M71EB a t a stylus force of 1% grams 400 Hz. - 14.3 cm/sec. M71-6 a t a stylus force of 1% grams 400 Hz. - 14.3 cm/sec. M71C at a stylus force of 3 grams 400 Hz. - 14.3 cm/sec. M73G a t a stylus force of 1 gram 400 Hz. - 14.3 cm/sec. I I I I Higher stylus forces within specified range improve trackability. FREQUENCY RESPONSE: From 20 to 20,000 Hz. CHANNEL SEPARATION: More than 20 db a t 1,000 Hz. RECOMMENDED LOAD IMPEDANCE: 47,000 ohms per channel INDUCTANCE: 720 millihenries D.C. RESISTANCE: 630 ohms. MOUNTING: Standard '/z" (12.7 mm) mounting center using new "Easy-Mount" snap-in bracket. M71C WEIGHT: 5 grams TERM I NALS: 4 terminals 9.0 milli.io1ts NC71 Radius : ,0006'' (.OX mm) GENERAL: The M71 and M73 Series of Dynetic phonograph car- tridges has been developed for use with all high fidelity amplifiers having magnetic and constant velocity inputs. MOUNTING: The cartridge bracket has standard 1/2" mounting centers. Hardware is provided for mounting purposes. (The brass screws have British threads.) Blue 1. Remove stylus guard and stylus from cartridge. (See para- graph on stylus replacement.) 3 to .5 - . 2. Remove cartridge from "Easy-Mount" snap-in bracket. (See (Figure 1) 3. Start mounting screws into tone arm head or plug-in shell. 4. Slip "Easy-Mount" bracket under heads of mounting screws and tighten screws securely. 5. Connect leads to phono-$artridge. Note color code for proper connection to termlnal L,:' "R," "LG" and "RG" as in- dicated in tone-arm instruct~on manual. ~~ -...-~ ~ 6. Insert cartridge into "Easy-Mount" snap-in bracket. (See Figure 1) SHIELD OF CARTRIDGE MUST BE PLACED ~ B ~ ~ l ; ~ ~ ~ ~ ~ ; F ~ : : I ; : E + p ~ ~ ~ ~ ~ \ OARTRIDQE BUMP IN HOLE OF BRACKET. 7 \--LIFT HERE WITH THuwNAlL FOR REMOVAL OF BRACKET. CARTRIDGE AND BRACKET ASSEMBLY FIGURE I

222 HARTREY AYE.. EVANSTON. IL. 60204 U.S.A. El- - MICROPHONES AND ELECTRONIC COMPONENTS AREACODE312/328.9000 . CABLE:SHUREMlCRO MODEL M71-6 DATA SHEET STEREO DYNETICO EASY-MOUNT PHONOGRAPH CARTRIDGE SPECIFICATIONS M71 AND M73 CARTRIDGE SERIES N71 AND N73 STYLI SERIES Model Diamond Stylus Number Replacement 5 cm/sec.) (Grams) Side Contact Radius: .0004" (.010 mm) Frontal Radlus : .0007" (.018 mm) M71-6 I NB71-6 Radius: 16.2 millivolts I Beige I 1% to 3 .0006" (.015 mm) - M71C 1 NC71 Radius: .0006" (.015 mm) M73G N73G Radius: .0006" (.015 mm) ~ 7 1 . 6 a t a stylus force of 1% grams 400 Hz. - 14.3 cm/sec. N75-3,* Radius: 4.4 millivolts Green I .O02If (.064 mm) / (monaural) 1 M71C a t a stylus force of 3 grams 400 Hz. - 14.3 cm/sec. M73G a t a stylus force of 1 gram 400 Hz. - 14.3 cm/sec. (Higher stylus forces within specified range improve trackability.) F R E Q U E N C Y R E S P O N S E : From 20 to 20,000 H Z . C H A N N E L S E P A R A T I O N : More than 20 db a t 1,000 Hz. R E C O M M E N D E D L O A D I M P E D A N C E : 47,000 ohms per channel I N D U C T A N C E : 720 m~llihenries D.C. R E S I S T A N C E : 630 ohms. M O U N T I N G : Standard 1:2" (12.7 mm) mounting center using new "Easy-Mount" snap-sn bracket. W E I G H T : 5 grams 9.0 millivolts 6.2 millivolts 1% t o 3 - -- - T E R M I N A L S : 4teI'minals *The N75-3 stylus may be used to reproduce the standard 78 rprn records. I n this case, the amplifier should be set to "Mon- aural" or "A+B." T R A C K A B I L I T Y : M71EB at a stylus force of 1% grams 400 Hz. - 14.3 cm/sec. M O U N T 1 N G : The cartridge bracket has standard lh'' mounting centers. Hardware IS prov~ded for mounting purposes. (The brass screws have British threads.) Blue Gray 1. Remove stylus guard and stylus from cartridge. (See para- graph on stylus replacement.) 2. Remove cartridge from "Easy-Mount" snap-sn bracket. (See Figure 1) 3 t o 5 1 t o 1% 3. Start mounting screws into tone arm head or plug-in shell. 4. Slip "Easy-Mount" bracket under heads of mounting screws and tighten screws securely. - 5. Connect leads to phono-cartridge. Note color code for proper connection to terminal "L, R," "LG" and "RG" a s in- dicated in tone-arm instruction manual. 6. Insert cartridge into "Easy-Mount" snap-in bracket. (See Figure 1) SHIELD OF CARTRIDQE MUST BE PLACED ~ : ~ $ R , ~ ~ : ~ ~ ~ : : E ~ ~ B ~ : ~ ~ ~ ~ ~ O C K I N G \ OARTRIDOE BUMP IN HOLE OF BRAGSET. 7 \--LIFT HERE W I T H ~ n u w N A l L FOR REMOVAL OF BRACKET. CARTRIDGE AND BRACKET ASSEMBLY FIGURE I 7. The top of the "Easy-Mount" bracket should be flush against thc top of the tone arnl head for proper playing position, unless other mounting instructions are supplied by the rccord changer/tone arm manufacturer. 8. Reinsert stylus. CONNECTIONS 4 - L E A D S T E R E O C O N N E C T I O N : Connect "hot" lead of right channel to terminal "R" and shleld or ground lead of right chan- nel to terminal "RG." Connect "hot" lead of left c21annel f? ter; rr~inal "I2" and shield or ground lead of left channel to LG. To prevcnt "ground loops" and hum, no common connect~on should be used a t cartridge tcr'minals. M O N A U R A L C O N N E C T I O N : For single channel reproduction of Monaural or St(:r.c'o recol.dings, conncct "hot" lead to both "R" and '.L" ter.rriinals and connect ground ,pr shield lead to both ground terrnlnals rriarked "RG" and "LG. C A U T I O N : Do not make solder connections to cartridge termi- nals. Makc all solder connet:tions to tcrrninal jacks provided before slipping them over the terminals. Sugges4ions for Cleaning Your Stylus To clean the styl~ls, use a camel's-hair brush (No. 2 size or snlallrr) dipped hghtly in alcohol. The alcohol will remove any sludge deposlts whlch rriay have coated the stylus t ~ p . The brush 111.istles should be trimrnt2d to a length no longer than inch. Always brush tile stylus wlth a forward nlovement from the rear (tc.rrrlina1 vnd of the cartridge) to the front. Never brush or wipe the stylus from front to back or slde to side. EASY STYLUS REPLACEMENT Grasp rnolded housing of stylus betwec,n thumb anti for.efinger. Gently withdraw stylus by pulllng forward out ( ~ f cartriilgi.. Grasp replacrrrifmt stylus between thumb and forefinger and insert into stylus s o c k ~ t . Prcss stylus into socket until molded Rnus- ing of the stylus mates with the cartridge case. Ca1.e rrlust be taken not to allow thc finger to slip off the rriolded h'ousing of the stylus. resulting in dsrrlagc to the stylus tip or, shank. STYLUS REPLACEMENT FIGURE 2 S P E C I A L N O T E : The Dynetic stylus assembly used in thcsc car- tritlges is the Iriost cr.~tical corriponent. To maintain tllc original p>e~,to~.rrlanci~ st:~ndal.ds of your cartridge, be certain that any re- plact.rnent stylus you buy hears the following certification on the paclcagt,: "This Stel.t'o Dynt.tic stylus is precision manufactured by Shure Brothers Inc." all-gu ides. com