TANDBERG 1-10 General And Technical Information Download Page 25 | Manualshive

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Summary of Contents for 1-10

Page 1: ...ER SERIES 15 GENERAL AND TECHNICAL INFORMATION BY COMMAND OF THE DEFENCE COUNCIL ftlAnNt Ministry of Defence FOR USE IN THE ROYAL AIR FORCE Prepared by the Procurement Executive Ministry of Defence Is...

Page 2: ...ake up turntable has wrong part number The correct number is 214701 2 Error in schematic for Model 15 SL board No 15001 Terminal 29 is connected to ground and not to the junction of R201 R203 as indic...

Page 3: ...Indicator 28 4 5 Motor Pulley 243940 for Series 15 16 6 7 Verification of Frequency Curves 28 4 6 Drive Belt 213997 17 6 8 Distortion Check 29 4 7 Transfer Wheel 990233 17 6 9 Output Amplifier 29 4 8...

Page 4: ...dication of record level Illuminated in record mode Counter Indicates revolutions of take up turntable Push button reset Speaker Internal speaker 4 x 7 Output power Maximum 10 W from output amplifier...

Page 5: ...59 dB IEC unweighted R M S 51 52 dB 51 52 dB Numbers in brackets apply for Series 15 only Distortion From record amplifier at 0 dB level 0 5 h From playback amplifier at 0 9 V output 0 2 h From tape a...

Page 6: ...f take up turntable 3 Counter reset button 4 Tape speed selector 5 Operating lever for selection of tape motion modes forward and reverse winding forward drive free and neutral 8 Function selector for...

Page 7: ...t stop lever For instantaneous start or stop in normal forward drive 9 Microphone socket 10 Record level meter 11 Record level control for line input 12 Record level control for microphone input 13 Ou...

Page 8: ...reverse winding These modes can be selected by the tape motion lever 4 1 THE OPERATING LEVER The operating lever is situated in front of the counter and is attached to the lower mounting plate 990216...

Page 9: ...ressure roller assembly is moved against the capstan by the eccentric segment 990203 when the operating lever 990225 is set to position normal forward drive The pressure wheel 990234 is sus pended und...

Page 10: ...ERASE HEAD REC PL B HD 212747 247653 SLUKKEHODE SPILLEHODE 240276A I 249551 0 0 M321 M104 990201 M314 248186 M314 Fig 4 4 Tape path 990600 242331 990206 236728A M321 990201 M313 990233 203638 0 20062...

Page 11: ...this position Put on 215743 the mylar sheet 215743 Press the flange 200549 down through upper part of the housing and move the turn table shaft through the housing Set the operating lever 990225 in po...

Page 12: ...and the turntable rests on the tape tight disc 219198 Put the teflon washer M355 down on the turntable shaft before the hexagonal delrin bushing 218767 is screwed on The turntable should now move fre...

Page 13: ...0 against lower mounting plate 990216 by means of a screwdriver The spacing between upper and lower levers will now be approx 6 mm 1 2 Turn the bushing 900 counterclockwise until the two delrin studs...

Page 14: ...n supply turntable and take up turntable respectively as shown in fig 4 13 The end of the tool should pass freely through the slot in the tape guide post when the operating lever is in position neutra...

Page 15: ...g arm 248186 is in a position that allows the delrin knob on the lever 990228 to rest in the lower position The delrin studs on the bushing 202230 are disengaged from the clutch lever Adjustment Adjus...

Page 16: ...ring underneath the turntable is between 0 5 and 1 mm 20 40 mil Check clutch lever positions in all operating modes and seal screw A Take up turntable Fig 4 18 In normal forward drive the take up tur...

Page 17: ...ck the position of the clutch levers for all positions of the operating lever and seal screw B 4 3 4 Fast Reverse Winding Supply turntable Fig 4 21 This turntable has maximum torque in fast reverse wi...

Page 18: ...3 3 Take up turntable Fig 4 24 The take up turntable is free For adjustment see chapter 4 3 4 4 4 MOTOR PULLEY 254040 SERIES 14 Fig 4 25 Rear view of drive mechanism The models 14 4 and 14 2 have two...

Page 19: ...IES 14 The lifting arm consisting of parallel arm and adjust ment arm is located on lower mounting plate and is linked with the eccentric segment 990203 See fig 4 26 The lifting arm disengages the tra...

Page 20: ...0 see fig 4 27 Adjustment For vertical adjustment of the capstan use special tool no 5 as shown in fig 4 28 Loosen the two screws M125 in washer 990222 in the upper flywheel bearing Push the tool caut...

Page 21: ...the arm presses against the mounting arm at point D and moves the arm and the transfer wheel approx 1 cm 3 8 horizontally to the left The vertical move ment of the mounting arm occurs simultaneously...

Page 22: ...ase head The purpose of the pressure pad is to enhance contact between erase head and tape and to ensure correct friction in the tape path The spring is linked with the pressure wheel lever 212826 C v...

Page 23: ...1482 254844 Fig 4 33 251489A 247653 80 g 2 82 oz 10 0 0 Fig 4 32 251482 218063 251482 218063 Fig 4 34 Note The pressure pad should be brushed clean at regular intervals to avoid incorrect friction bei...

Page 24: ...n when the tape has run out or in case of tape break The spring 243990 pulls the delrin part of the feeler fully in and the feeler activates the microswith so as to switch off the motor 4 16 4 Free Fi...

Page 25: ...42A 243990 242503 243013 203013 240276A 244694A 242309 990222 990312 203013 240276A 244694A 242309 990222 990312 243013 F 202151 M360 244342A 243990 242503 Fig 4 39 Adjustment 202151 M360 244342A 2439...

Page 26: ...f transistors 0201 0202 and Q203 with associated components A fre quency depending network connected from emitter of 0203 to emitter of Q201 establishes the appropri ate frequency response for recordi...

Page 27: ...SCILLATOR which generates erase and bias vol tage at a frequency of 85 5 kHz The frequency is mainly determined by the erase head and the induc tance of T201 in parallel with the adjustment capa citor...

Page 28: ...As shown in fig 5 7 and 5 8 the heads are inter changed for recording playback via equalizing ampli fier on track two while track one is connected to FREE HEAD output Fig 5 7 Playback EXTRA Fig 5 8 R...

Page 29: ...djustment 4 track Play back a tape with a 10 000 15 000 Hz signal re corded at constant amplitude Tandberg Test Tape no 2 Set the track selector to position NORMAL and then to EXTRA Adjust azimuth scr...

Page 30: ...alignment with the capstan Recheck azimuth posi tion The use of special tools is recommeded 6 5 Bias Current 6 5 1 Oscillator Frequency 2 Track Model Connect a 100 ohm resistor in series with the reco...

Page 31: ...Current Connect a mA meter in series with R133 in the out put amplifier and set VOLUME to minimum Adjust R129 Current Adj for a meter reading of 30 mA Alternatively adjust for a voltage drop of 16 mV...

Page 32: ...via the pro gramme amplifier Input signal to each output amplifier is supplied from the corresponding input amplifier via potentiometer R301 The signal is mixed with signal from the pro gramme amplif...

Page 33: ...edal depressed Capacitor C504 4 LF is charged in the stop position Current now passes through the rewind solenoid and to earth through microswitch II The resulting power shock approx 0 6 A is absorbed...

Page 34: ...1 1 21 EILIN 111111 111111M112111 1110111111111111 11111111111111111 IIIMMI111 1111111111111111111INIIIIIIMIIII MIMI 111111111 1111111111111111 111 munrimmisimmounismminumiimmu 1111111111E11111 1 1111...

Page 35: ...re from the microswitch to terminal 3 on the potentiometer 8 3 Modifications from 2 Track to Full Track Model Replace record playback head 39 H by 72 H and erase head 69 H by 73 H To obtain correct re...

Page 36: ...1 3 w 10 0 o R124 68 ohm 1 3 W 10 0 0 R125 22 kohm 1 3 W 10 o R126 1 kohm 1 3 W 10 o R128 2 2 kohm 1 3 w 10 o R130 130 ohm NTC 20 o R131 56 ohm 1 3 W 10 o R132 56 ohm 1 3 w 10 o R133 0 47 ohm 1 W wire...

Page 37: ...rial no 2515502 for TB 15 Component with new value above serial no 2 619 561 for series 14 and 2 515 502 for series 15 Capacitors Ref no I Description Type Remarks 10 60 pF 2 2 IF 100 V Electrolytic 1...

Page 38: ...V 10 o Cer 2 Transistors 0101 BC 149B low noise Q206 0207 BC 107B BC 107B 0102 BC 149B low noise 0208 BC 149B low noise Q103 BC 149B low noise Potentiometers 0104 BC 147B 0105 BC 147B R127 470 kohm l...

Page 39: ...0 ohm 1 2 w 5 0 0 R205 6 8 kohm 1 2 w 5 oh R206 39 kohm 1 2 w 5 0 0 R207 6 8 kohm 1 2 w 5 0 0 R208 47 ohm 1 2 W 5 0 0 R209 15 kohm 1 4 w 50 0 R220 10 kohm 1 3 W 10 0 0 R221 10 kohm 1 3 w 5 oh R222 1 k...

Page 40: ...0 0 R318 180 ohm 1 3 w 10 o R319 10 kohm 1 2 W 5 oh R320 39 kohm 1 2 W 5 oh R321 1 kohm 1W 10 o R322 220 kohm 1 2 W 5 0 0 R323 100 ohm 1 3 W 10 o R324 100 ohm 1 3 w 10 o R325 100 ohm 1 2 W 10 o R326 6...

Page 41: ...V 10 20 0 0 Oil paper C506 0 1 F 400 V 10 20 0 0 Oil paper C507 0 1 F 400 V 10 20 0 0 Oil paper C508 0 1 1F 400 V 10 20 1 4 Oil paper 0509 0 1 F 400 V 10 20 Oil paper Miscelaneous D500 990237 990238...

Page 42: ...ller pressure wheel lever Window revolution counter Spring linkage arm Shaft brake lever supply turntable Spring lever friction wheel Roller pressure wheel bracket Bearing flywheel self lubricating Co...

Page 43: ...elrin button for clutch levers Spring for tape tight disc Thrust washer Spring pressure pad arm Spring left friction disc Rivet parallel arm and trip bar Delrin nut Bracket for revolution counter Tape...

Page 44: ...ng connectors Motor pulley Series 15 50 Hz Spring end stop feeler arm Plastic tip arm equalization switch Bracket chassis Spring function selector lever recording position Lever end stop Switch loudsp...

Page 45: ...20 4 22 4 24 990228 Clutch lever supply friction disc 4 5 4 6 4 7 4 8 4 15 4 17 4 19 4 21 4 23 990229 Clutch lever take up friction disc 4 5 4 9 4 10 4 16 4 18 4 20 4 22 4 24 990230 Brake lever take u...

Page 46: ...the flywheel and the speed transfer wheel are mounted in self lubricating bearings and should usually not be lubricated If however it should be necessary to lubricate the bearings for any reason use L...

Page 47: ...ZED REC PLAY PREAMP PLAYBACK BOOSTER IND AMP ERASE OSCILLATOR 85 5k Hz 26 27 C 221 150 750p 29 PREAMPLIFIER BOARD NO 15001 REC FLAY HEAD 39H REC PLAY HEAD 40H 3300p R236 680 111 P C H 1 CH 2 C1 2 10 6...

Page 48: ...0222 C207 R239 2 1T c2lot 11 w C 208 R213 Cp6 R 208 c 225 0211 R215 IC209Ril C224 R207 C235I Er T R W 3R R216 p214 R212 I R 238 Q202 R217 w 4 t rC212 R2 31 W C204 R210 C223 t7 8 3 3 4 150 223 0204 R2...

Page 49: ...PREAMP 71 R235 0 C 126 R234 68k 2 1M W kri C 221 19 260 150 750p 071 025 028 029 PREAMPLIFIER BOARD NO 15001 REC PLAY HEAD 40H l 29 FRED AEU 3300p T201 24V 195V REC 0 R236 R237 680 5V 10k 119 020813 5...

Page 50: ...TO RECT B 36 C1200 650 PLAIN START STOP 3 MAGNET 2 CA 7000 OHMS BLACK SORT BLUE Schematic for remote control unit model 15F Above serial no 2 510 020 BRAKE MAGNET CA 4000 OHMS M ICRO SWITCH I NEUTRAL...

Page 51: ...BC 149B 13 53 1 1 C227 1004 T 2p 50V __ 0201 32 BC 149 B 0 REC O 6 C i 30 r 3 AMPOAr BO Ci P 0 I C23211160p 1 5 0 7 3 5 1 22 0 REC N 0 21 AMP 1 C1 BC 149 B 10 60p CHI CH 2 C 217 2p 50V R2 2200p C225...

Page 52: ...1 L E ij Q302 111 9 10 3 r II 10 0 1 I L L 12 K 11 1 J 10 11 I 9 IL II H it r r i n tio it i lie 1 0 I 1 li ii It 11 11 II f t 7 IL F 6 t I 1 E 5 D 4 11 c 3 IB 2 A 1 G L Board for output amplifiers Mo...

Page 53: ...0 1 0 R301 13eil i a_ g i 1 0 I IL _ 0 _ _ I cl i C301 E 2p Its rT R303 I 1 8K II ON I I I I I I I R 203 100K 1 11 C203 470 R201 R204 330 510 I IMMO INPUT AMPLIFIERS 1 11 I I I I I C205 I 2p I I R207...

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