Maguire Industries, Inc. ARC-1 Schematic

Maguire Industries, Inc. ARC-1

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Product Information:
Model:ARC-1
Manufacturer:Maguire Industries, Inc. (Meissner)

Schematics Content

Page 1:

A - 10 Inch Position
B - 12 Inch Position
C - Unloading Position

D - Spindle E - Pickup Arm

F - Start - Reject Switch Turn in Direction of Arrow
G - Turntable

Page 2:

PARTS MUST MOVE FREELY

The following parts must move freely:
a. Slide (53) check friction by removing turntable and turntable hub and relieve pressure produced by springs. Slide should then move freely along top mounting place (54). If slide binds, clean off any dirt that is present and check that slide or top plate is not bent. Lubricate between slide and top plate, and slide shafts with Houghton's stay put # 320 oil. If not available use SAE 30 or 40 motor oil.
b. Automatic stop lever (40) remove friction washer (41) and see that lever does not bind.
c. Cranks (32 and 39) in support posts (28 and 51). check that cranks are not bent. Pushers (80 and 77) should be flush with record guides (58 and 68) when machine is out of cycle. Right pusher, crank, and pusher control lever must move freely when slide is 1/2 way through cycle.
d. Pickup lifting lever (8) check for binding in bearing.
e. Pickup actuating lever (50). check for binding in bearing.
f. Pickup return lever (43) - check for binding in bearing.
g. Trip lever must move freely.
h. Dog must fall freely.
i. Idler place must slide free. wheel must rotate freely.
j. Turntable hub-be sure cam does not rub slide. If necessary add a shim washer
k. Motor must turn freely.
In cases where levers are controlled by springs remove springs before checking for binding.

CYCLE OF OPERATION CAUTION: In any adjustment which requires that the turntable be removed, be careful not to strike the trip lever (52) or dog (30), either when removing or replacing turntable. Remove covei plates (55 and 72) and turntable (74). The Changer can then be rotated manually through a change cycle by pushing Start - Reject knob (F) and rotating the turn table hub (79) clockwise by hand.
NOTE: Alphabetical references are to figure 1, numerical to figure 5.

Page 3:

Pickup Arm (65) Moves in.

Pickup actuating lever (50) rotates and latch engages pin on pickup return lever (43). Slide (53) scarts back rotating pickup arm (66) to in " or 12 " position.

Pickup Arm Lowers Stylus on to Record

Pickup return lever (43) moves against index scop lug on index plate (71) to insure correct landing position. Pickup lifting lever (8) rotates counter-clockwise lowering pickup arm; this frees pickup latch (50) allowing arm to feed into music. Pushers (77 and 80) return to original position permitting next record to rest on record shelves (78). Slide (53) moves dog (30) along edge of dog trip lever (52). Dog trip lever (52) raises dog (30) permitting cam on turntable hub (79) to revolve without contacting dog (30).

Pickup Arm Rises at End of Record.

Stylus enters fasc spiral at center of record and moves in at rate of 1/8 " or more per turntable revolution. Pickup lifting pin (part of 65) moves friction finger (part of 52). Friction finger moves dog trip lever (52). Vertical cam on turntable hub (79) drives trip lever (52) back once per revolution. When the pickup (65) moves in at a rare exceeding 3/32 " per revolucion, the trip lever will move far enough to allow the dog (30) to fall. Dog (30) drops in path of cam on turntable hub (79). Cam on hub (79) pushes slide (53) into gear. Incline on slide (53) rotates pickup lifting lever (8) by means of stud.

Next Record Drops on to Turn table.

Left hand pusher (80) moves next record on to spindle shelf. Record pushes right hand pusher, which through crank rotates automatic stop lever (40) out of path of pickup actuating lever latch (part of 50). Pickup actuating lever (50) rotates pickup arm outwards. Right hand pusher (77) moves record off spindle shelf.

Automatic Stop.

After last record pickup arm rises as above. Left hand pusher (80) moves out. Absence of record prevents accuation of right hand pusher (77). Automatic stop lever (40) remains in path of pickup return lever latch (43). Pickup arm is lowered not on to record buc on co Start - Reject. Pickup atm stud (part of (65) opens curntable motor switch (11) shutting off machine,

LOADING: The record changer will play up to ten 12 inch records or twelve in inch records. Load as follows:

1. Turn record support posts to in or 12 inch position as desired. See figure i.

2. Place records (any number up to 10-12's or 12-10's) on the small shelves on record support posts, with the turntable shaft through the holes. Make sure all records rest flat on top of shelves. Do not attempt to force oversize records between record support posts, as machine may jam. Kome recordings or other SPECIAL records should not be played automatically as they or the machine may be damaged. OPERATION: Start the machine by pulling the " Start - Reject " knob towards the front of the machine. Hold knob for a second. The pickup arm will lift, the first record will drop to the turntable, the pickup arm will land near the edge of the record and start to play. TRIPPING: At the end of a record a fast leadout or eccentric groove will trip the machine automatically, and a change cycle will follow, dropping the next record.

AUTOMATIC STOP: After the last record has played, the pickup arm will land on the " start - Reject * knob, thus shutting of machine. RELLOVING RECORDS: Turn record support posts one-quarter turn either direction; renovo records by lifting straight up from turntable, MAIJUAL OPERATION: To play special records home recordings, etc.) turn record support posts to unloading position, place record on turntable. Lift pickup arm from " Start - Reject " knob, starting turntable. Place pickup on record.

Page 4:

TROUBLES AND ADJUSTMENTS
RECORD JAMMING CAUSED BY FAULTY RECORD LOADING OR ODD - SIZED RECORD

EXPLANATION
a. Correct record loading procedure: record rests on left and right hand support.
b. If records are loaded improperly the machine may jam. When the record rests on spindle and right hand support (78) and not on left hand support (78), as shown in figure, left hand pusher (80) will push second record against right hand guide (68).
c. If record is warped so badly that center hole lies below spindle shelf, record cannot be pushed by left hand pusher (80) and machine will jam.

EXPLANATION
d. If record is loaded below right hand support (78) it will not be dropped from spindle shelf.
e. If record is oversized it may not fit between guides (58 and 68) or right hand pusher (77) may not move far enough to allow record to clear left hand shelf (78).
f. If center hole of record is undersized, record will be pinned against spindle. If second record is under. sized or if cycle is very slow, second record will drop in front of right hand pusher (77) and machine will jam. This should not occur if cycle speed is more than approximately 40 rpm (normal speed is approximately so rpm). Cycle speed is normally 2-4 rpm less than no load speed.

NOTE: Edges of Records badly damaged or highly irregular will also cause jamming.

Page 7:

FIGURE 6

Page 8:

FIGURE 7

Page 9:

LIST OF REPLACEABLE PARTS
FOR EXPLODED VIEWS OF THESE PARTS SEE FIGURES 5, 6, and 7.