Dual 1229 Q Service Manual Download Page 12 | Manualshive

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Summary of Contents for 1229 Q

Page 1: ...oboscope For 33 1 3 and 45 rpm speeds IIluminated by special neon glow lamp Speed variation 0 06 according to DIN 45 507 Noise Rumble 42 dB below standard signal Measured according to DIN 45 500 Weighted audible rumble 63 dB below standard signal Tonearm Torsionally rigid extra long tubular tonearm in four point gimbal type bearing Maximum tracking error 0 16 cm Tonearm bearing friction vertical 0...

Page 2: ...ge eedie meee 4 4 1 left channel 1 r 1 1 _ I 1 white I L p i I L 1 1 I LI i I Tonearm audio cable c black left channel white Mass left channel blue Q2 white blue al with miniature plug 5 pin right channel red lead left channel white lead black red inner side of groove z outer side of groove left channel right channel b with phono plug i i II white yellow Nee Tonearm head NW Spring contacts between...

Page 3: ... 11 Tonearm returns to rest immediately after being placed on record manually 11 Start cycle 11 Manual start 12 Stop switching 12 Muting switch 12 Record drop 13 Shut off and change cycle 13 Shut off mechanism 13 Turntable stops after automatic set down of tonearm 14 Tonearm misses 12 record during cycling when moving in or out 14 Last record keeps repeating 15 Records do not drop 15 Switch locks ...

Page 4: ...18 275 Part No 216 276 Fig 3 Motor field connections 115 121 188 The motor pulley 115 is fastened to the motor shaft by a setscrew When you change pulleys be sure that the new pulley is set at the correct height see page 6 The turntable platter is driven by the id ler wheel 131 which to prevent damage to its friction surfaces is automatically disengaged when the unit is shut off Set ting the turnt...

Page 5: ...rled ring To change the angle lasen the machine screws slide the stroboscope housing 85 1150 or 60 and tighten the screws again The neon lamp 93 can be changed after re moving the top part of the housing 90 When replacing the neon lamp be sure that the red point p Anode is located on the right contact spring unit viewed from front Trouble The stroboscope neon lamp 93 does not light up when the uni...

Page 6: ...e to production toleran ces the 45 r p m rated speed may differ from the 33 1 3 r p m by up to two scale markings on either side Rermedy a Check connections at switch plate and voltage selector b Check switch lever assembly 134 c Tighten motor pulley a Change motor pulley b Clean friction surfaces of idler wheel motor pulley and turntable platter If necessary replace drive wheel Once the drive sur...

Page 7: ... set by turning a calibrated housing 78 which stresses or releases a spiral spring contained inside The scale adjustment is calibrated from 0 3 p from 0 1 5 p at 1 10 p and from 1 5 3 p at 1 4 p intervals Tracking forces of mors than 3 p can be ad justed with the help of the counter weight on the tonearm turning left counter clock wise increases the tracking force by 1 2 p per complete turn To rep...

Page 8: ...2 and is not hindered in its movement by the to the tonearm wires Adjust tonearm height with positioning sleeve 200 and locating screw 79 in multi position at the mode selector Correct position with main lever pressed up is approx 0 5 mm play remaining measured at tonearm head see Fig 13 Anti Skating Device The tendency of a tonearm with an offset angled head to skate inward across the record is e...

Page 9: ...ted d Stylus worn or chip d Renew stylus ped e Excessive friction in e Check tonearm pivot Both bearings should tonearm bearing haue barely noticeable play Adjust ver tical baering only with the left bearing screw 62 and horizontal bearing with nut 59 Horizontal bearing is correct ly adjusted when the tonearm with anti skating set at 0 5 gram swings freely from center to rest first balance tone ar...

Page 10: ... of the change cycle set down of the tonearm on the record the arm po sitioning slide 255 is again released and returns to its normal position lt thus moves out of reach of the spring stud permitting the tonearm to move hori zontally without hindrance while playing the record Tonearm Lift The tonearm lift permits the tonearm to be set down on the record safely at any desired point except the shut ...

Page 11: ...ed by the switch slide 167 through the switch arm and the turntable begins to rotate b The switch lever 195 is brought within reach of the cam follower lever 207 so that it is pushed into the change posi tion as the main cam rotates Moving the operating switch also relea ses the start lever 248 pulling it towards the main cam by means of the ten sion spring 251 Rmmedy Set record size selector Adju...

Page 12: ... contact with the plat ter The slide 167 linked with the switch actuates the power switch and starts the turntable platter rotating On reaching the run out groove the tone arm automatically returns to its rest po sition and the unit shuts itself off How over if the tonearm is lifted off the record manually and returned to the rest the tabs of the arm segment 201 release the pawl 273 The torsion sp...

Page 13: ...off after the last record in a stack is played At the end of a record the tonearm moves towards the center at an accelerated rate due to the increased pitch of the grooves This motion carries the shut off lever 162 towards the dog by means of the shut off slide 253 The eccentric dog pushes the shut off lever 162 back at each revolut ion as long as the tonearm advance is only one normal record groo...

Page 14: ...ops after automatic setdown of the tonearm Cause a Switch arm 188 is not latched by pawl 273 Bolt of segment slips over pawl instead of engagin it b Power switch opens c Square bar not properly screwed in Paul can escape Remedy a Adjust segment 201 so that bolt catches pawl in both positions of mode selector b By aligning angle lever 145 play bet ween angle lever and slide 140 max 0 3 mm c Loosen ...

Page 15: ...ab on switch arm 188 and start lever 248 Remedy Adjust tab on switch arm so that it clears start lever by 0 1 0 2 mm or 1 64 when main cam in neutral position Trouble Tonearm will not lift away from the tonearm rest with mode selector in multi posi tion Cause Equalizing arm 210 maladjusted Balance plate 243 at the main lever 184 does not contact with the lifting bolt Remedy Adjust equalizing arm o...

Page 16: ...on of the main cam the spacing between contact im about 0 5 mm or 0 02 inch Spray contacts with preservative e g Kontakt 61 and check alignment of short circuit contacts Bend contacts so that in the neutral pos ition of the main cam the spacing between contacts im about 0 5 mm or 0 02 inch Replace capacitor in power switch a Correct cut out according to instructions supplied with unit Move cables ...

Page 17: ...ring mounting Hex nut BM 4 Rest ring Threaded piece Compression spring tonearm side Compression spring yellow motor Rubber damping block Steel cup Spring mounted footing complete 1 Centering disc Centering pin Washer Retaining ring Tonearm head complete Contact plata complete Lift Bowed lock washer Washer 4 2 8 0 5 St Ring G 4 x 0 8 Mounting TK 14 Ring complete Dual emblem Switch lever right compl...

Page 18: ...Fig 28 Exploded view above chassis CD 0 6 10 9 e D 2 0 18 ...

Page 19: ...Fig 29 Exploded view below chassis 19 ...

Page 20: ...7 233 007 Wiring board complete 1 128 233 006 Cover for wiring board 1 129 210 501 Screw bolt M 3 x 35 1 130 200 633 Lock washer 1 131 218 237 Drive pulley 1 132 200 100 Slide washer 1 133 218 700 Swing lever 1 134 217 596 Switch lauer complete 1 135 218 702 Silicon tube 1 136 233 734 Installation plate complete 1 137 233 008 Mains switch UL Cpl W special capacitor 1 138 233 013 Switch plate UL cp...

Page 21: ...sleeve 1 205 216 853 Compression spring 1 206 220 902 Lifting bolt complete 1 207 214 203 Cam follower lever complete with rubber sleeve 1 208 216 761 Bearing pillar 1 209 210 609 Washer 3 2 10 0 1 0 1 210 219 077 Equalizing arm complete 1 211 219 073 Shaft 1 212 218 151 Locking slide complete 1 213 210 586 Washer 3 2 7 0 0 5 St 1 214 221 463 Bushing 1 215 221 462 Connecting lauer bracket 1 216 21...

Page 22: ...Washer 3 2 2 267 222 692 Skating lever complete 1 268 232 995 Power cord America complete 1 269 217 227 Joining screw 1 270 225 212 Linking lever complete 1 271 201 187 Slip washer 1 272 210 145 C washer 2 3 14 273 216 791 Paul complete 1 274 219 049 Square piece 1 275 219 083 Washer 3 2 13 0 5 St 1 276 216 BOO Positioning lauer complete 1 277 218 583 Machine screw AM 3 x 4 with set screw 2 278 20...

Page 23: ...arings Lubrication should be app lied sparingly lt is of primary importance that no oil or grease should get onto the friction surfaces of the drive wheel motor pulley or turntable to avoid slippage For the same reason avoid touching these parts If lubricants ars varied they may interact chemically and break down To avoid this risk we recommend use of the products below for subsequent lubrication ...

Page 24: ...er Dual Dual Gebrüder Steidinger 7742 St GeorgeniSchwarzwald 920195 4 674 Druck Hornuß Forster Villingen Printed in Germany ...

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