NEWCOMB SM-310 Service Manual Download | Manualshive

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Summary of Contents for SM-310

Page 1: ... The power source required for this unit is lI0 U volts 60 cycle AC Manufactured By Newcomb Audio Products Co 6824 Lexington Avenue Hollywood 38 California HCDWARD W ISAIUlts The listing of any available replacement part herein does not constitute r ny case a_recommendation warranty or guaranty by Howard W Sams Co fnc as to the quality ana sriitanUty of such replacement part The numbers of ihese p...

Page 2: ...threaded on the recorder When no tape is on the re corder the take up guide is pulled forward by spring Balance tenslon and opens the automatic motor snritch channel I and channel 2 Mike Balances the two channels when plaving stereo controls the record level v hen recording from Sglgctor a microphone Selects the channel or chalnels for recording or playback FUNCTIONS OF JACKS Mike I channel 2lnput...

Page 3: ...hone into Mike I jack for line recordings If recording from an external source such as a radio phono TV or another recorder connect it to the Channel I input jack 3 Turn Selector switch to CH l Hi Track 4 Turn Function switch to Record and hold until the Control Lever is moved to the record posi tiott NOTE To record on Channel 2 use the same proceciure but use the Channel 2 Mike or Line ct_rntrols...

Page 4: ...back a recording move the Control Lever to Listen Record To set the tape in motion for recording move the Control Lever to Record Erasi ng A recording is automatically erasedwhile a new one is being made To erase a tape without putting a new recording on it unplug all input connections turn ali controls to their lowest level turn the Function switch to record and hold until the Control Lever is pu...

Page 5: ... insure both brakes are adjusted eqr rally Take Up Tensioner 24 l Leave 005 end play between the eccentric 81 and bearing 83 2 Position the take up tensioner 24 so it will be at a 30 degree angle with respect to the tape deck Supply Drag Brake l Adjust the drag pulley bracket l5a so the ten sion spring I52 will be stretched approximately 5 32 when in the play position Take Up Torque l Place a reel...

Page 6: ...z l J o E O tf t lJ j E I u l o o 6 VI L t at l J o PAGE 6 ...

Page 7: ...AMP CHASS IS BOTTOM V IEW CAPACITOR MISC IDENT BOTTOM DR IVE MECHAN I SM PAGE 7 ...

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Page 10: ...ulate on the brake drums Use a cloth and al cohol to remove it LUBRICATION The bearings are the setf lubricating type and t3 69 gtE Ea oe Itll 5rIa should not need lubrication for a long period of time under normal operating conditions Need for lubri cation will be evident by mechanical noise or slow operation Use SAE30 type motor oiland lubricate as follows Motor l0 drops at each end Belt idler p...

Page 11: ...g brake 149 worn Drag brake spring t52 off or broken Drag brake cord broken Replace pad on drag brake 149 Replace drag brake spring 152 Replace cord l 2 3 I 2 3 No record or playback Defective record play head 14 Broken wire to head Defective component in record er preamp or associated am plifiers Replace record play head I4 Repair or replace Check per schematic andreplace any defective component ...

Page 12: ...nob Skirted t 0 9rr Grip Ring Gasket Gray Fiber 2 lI 16 x 2 L L6 x 050 Bearing Retainer Upper Felt Washer Oil Retaining Upper Beariry Loading Spring Flywheel Bearing Retainer Counter Pulley Counter 5 32 D Belt Counter Bracket Counter Mounting Screw Counter Mounting Screw Counter Mtg Brkt Hex Nut Washer Belt Capstan Drive MP 24 HA II HA ll8 AM I5 AM 10 SF 65 wA r04 MP 2O AM 9 HA 120 HA 143 BE 5 sE ...

Page 13: ...Band Ass y Supply Grip Ring Hex Nut Grip Ring Arm Drag Brake Screws Retaining A djusting Spindle Washer AM I8 MP 46 MP 8 C PM 22 GA 30 Spring Drag Brake Retaining Ring Bracket Assty Drag Pultey Bushing Belt Flipper Grip Ring Sleeve Motor Mounting Spacer Motor Shock Mtg G rommet Motor Mounting Pulley Motor Set Screw Motor Synchronous Retaining Ring Pulley Counter Anchor Bracket Brake Ass y Drive Be...

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Page 15: ... ID I o u C e t c CZ Q39 9 9 9r di i 6 Ft p aa V rAU l d oe o9 E z o F A d U v q 6 d6 s ro o Hd k tr14 oo oo h oo au 4 oo dl l kt F Fr tt kk oo ht dd n J O oL E3 z oo 6 o l go 6z 9 frl a z frfr tl o6 It HF a u e n q g aLd JO XV oo u6 2 ee u U 6ts sd e oo oo o t U z F U J 6 z Hs oa o6 r f ci tsz NO ts 6 F z g q J A u 4 o vrz n a3 G 4 u o J o E o A M a v7 D g o He z EoE a 4 U o o 4 tll o N o g t r o...

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