OPERATING INSTRUCTIONS

1. SETTING FOR SIZE OF RECORD.
The size of record for which the record changer is set to play is indicated by the number (on the top of the cover assembly) nearest the turntable. See Figure 1.
To change the setting, grasp the record support and cover assembly and rotate it a half turn until it snaps into place with the correct record size toward the turntable. In chang. ing the setting from 10 - inch to 12 - inch, rotate the assembly counterclockwise only; in changing from the 12 - inch to the 10 - inch setting, rotate the assembly clockwise only.

2. STARTING THE RECORD CHANGER.
Load the record changer and set the record clip so that it rests on the top record. Now start the turntable rotating and press down on the reject button or push down on the pickup arm momentarily if it is setting on the arm rest. The entire stack of records will be played automatically.
On - Off switch is standard on some models.

3. REJECTING A RECORD.
To reject a record at any time and start playing the next one, merely press down on the reject button.

4. UNLOADING RECORDS.
To remove the records, it is advisable to have the changer mechanism out of cycle. However, it is possible to unload the changer while it is in cycle so long as the pickup arm is clear of the records.
Stop the turntable from rotating before lifting pickup arm to arm rest and remove records.
When removing records, hold them lightly and lift straight up.

CAUTIONS
1. Never use force to stop the motor or turntable.
2. When turning the record support, be sure to grip the entire record support and cover assembly and not just the plastic record clip.

THE CHANGE CYCLE

5. DESCRIPTION OF CHANGE CYCLE.

(See Figures 2, 6. and 7.) While a record is playing and as the pickup ar moves toward the center of the record, the arm control pin (31A on the arm control assembly (31) moves along the portion of the arm control track (36B) as indicated at " P figure 2. As the record reaches the pickup or trip point, the pin reaches point " T " on the track. As it moves into the recessed position in which it is shown in the illustration, it permits the trip spring (35) to pull the arm control plate (36) forward to wards the centerpost (27). As the control plate is drawn forward, the stop tab (36A) on the arm control plate (36) is withdrawn from behind the reject catch (62) on the eccentric cam (61). The cam, which no longer is held in place by the stop tab (36A), is pulled over by the eccentric cam spring (44) until the rubber tire makes contact with the knurled roller (53) on the turntable shaft (28A). This knurl ed roller, which rotates with the turntable shaft, rotates the eccentric'cam. In turn, this forces the riser plate assembly (37) back along its guide rods (51A) away from the center post (27). As soon as the riser plate begins to move, the push-off cam and shaft assembly (42) rides along the inclined track (37C) of the riser plate (37). This action causes the push-off cam and shaft assembly (42) to be drawn down. ward; as a result the pickup arm lift (19) presses down on the arm lift bearing pin (14) causing the pickup arm to be raised clear of the record. Then the riser plate tab (37B) contacts and moves the arm control assembly (31) which, since it is coupled to the pickup arm support assembly (22), carries the pickup arm away from the centerpost and clear of the edge of the turntable. As the riser plate (37) continues to travel further along the guide rods (51A), the riser plate motion bracket (37A) contacts and rotates the push-off cam and shaft assembly (42); as a result, the push-off am (5), (which is coupled to the push-off cam and shaft assembly (42) ] causes the push plate (761 to drop a record to the turntable.

During the second half of the change cycle, the pressure of the push plate spring starts to return the push plate (70) and push-off arm (5) back to their normal position. At the same time, the motion of the eccentric cam (61) and the guide rod recoil spring (38) propel the riser plate (37) 10 ward the centerpost. The arm control assembly (31), and hence the pickup arm, are drawn back by the tension in the set-down spring (30). After the arm reaches this point directly above the set-down point, the riser plate (37) has moved far enough back towards the centerpost (27) to allow the push-off cam and shaft assembly (42) to ride down the inclined track 137Ci of the riser platt (371. This lowers the pickup arm onto the record. The following paragraph describes how the set-down point is determined for the 10 inch and 12 - inch settings). As the eccentric cam (61), aided by the eccentric cam spring (44) completes its revolution, the rubber tire of the carn moves away from the knurled roller (53) on the turntable shaft and the reject catch (62) to rest against the stop tab (36A) of the arm control piatt (36). The change cycle is completed.

6. DESCRIPTION OF DETERMINATION OF 10 - INCH AND 12 - INCH SET - DOWN POINTS.
During the early part of the change cycle, the arm control plate (36) has traveled (in a direction away from the center post) until the size change stop (36C) reaches the cam (42B) Figure 2).
As the pickup arm moves back towards the record during the second half of the change cycle, it will be stopped when the bracket (31C) reaches the adjusting screw (32). How far the arm returns before being stopped depends on whether the arm control pin (31A) has been riding in the " S " or " L " portion of the arm control track. If the pin has been riding in the " S " or 12 - inch portion of the track, the arm will be stopped at a point directly above the 12 - inch set-down point: if the pin has been riding in the " L " or 10 - inch portion, the arm will be stopped at a point directly above the 10 - inch set-down point.

7. REJECTING A RECORD. (See Figure 3.)
The reject button (26A) is located on the top of the arm of the push-off cain and shaft assembly. The distance traveled by the arm control plate (36) will depend on the size of the record being played the distance is less for a 12 - inch setting than for a 10 - inch setting. (This is true because the push-off cam (42B) presents its short radius to the size change stop (36C) for the 10 - inch setting and presents its long radius to the size change stop for a 12 - inch setting). This variation in distance traveled means that the arm control track (36B) will be in a position closer to the centerpost for the 12 - inch setting than for the 10 - inch setting. This in turn means that during the change cycle the arm control pin (31A) (whose path is determinted by the motion of the arm control assembly (31)) will leave its recessed position and will ride along the " S " portion of the arm control track for the 12 - inch setting and along the " L " portion for the 10 - inch setting
(Sec rest (26). The parts used to provide push button rejection are shown in Figure 3.

Figure 3 shows the changer out of cycle, that is, when a record is playing. Note that the reject catch (62) engages both the stop tab on the arm control plate, and the reject arn (70). if the changer is allowed to finish playing the record, the stop tab on the arm control plate is withdrawn from behind the reject catch (62); the eccentric cam (61) is then pulled against the knurled roller (53) and the change cycle begins. However, when the reject button (26A) is pressed the reject trigger wire (86) pulls the reject arm (70) from behind the reject catch (62); the eccentric cam (61) is pulled against the knurled roller (53) and the change cycle begins

ADJUSTMENTS

1. See that the drive pulley and the rubber tire on the
motor (60) and the rubber tire on the eccentric cam (61) are kept clean and free from oil, grease, dirt, or any foreign material. Carbona or carbon tetrachloride may be used for cleaning these parts.

2. If replacement of any parts requires the removal of the
lift adjusting collar (10), pickup arm support assembly (22), or the push-off arm (5), be sure to re-position or replace these parts as directed in paragraph 9, 10, and 11 respectively.

TOOLS REQUIRED
# 6 Bristol Set Screw Wrench,
# 8 Bristol Set Screw Wrench.

8. SET - DOWN POINTS AND PICKUP OR TRIP POINT.
(If the pickup arm support assembly (22) has been removed or if its set screws are loose, it must be repositioned as described in paragraph 10 before adjusting the set-down points and pickup or trip point).
This changer is designed so that the 10 - inch set-down point, the 12 - inch set-down point, and the pickup or trip point are simultaneously adjusted in a single operation. It is recommended that you make the adjustment at either of the set down points. This adjustment is made by means of the adjusting screw (32) shown in Fig. 4. Turning this screw counter-clockwise will cause the arm to set down closer to the centerpost; turning it clockwise will cause the arm to set down further away from the centerpost. One turn on the screw will inove the arm about 14 inch.
If the adjusting screw (32) will not change the setting sufficiently, the pickup arm support assembly (22) nay be out of position. (See paragraph 10).
The set-down point when using a straight-shank needle will differ slightly than when using an offset shank needle.
If you do not know which type of needle is to be used by the customer, we suggest the following settings when tested with a straight needle: measuring from the side of the center. post, 45/8 " for the 10 - inch set-down point, 55 / " for the 12 inch set-down point, and 1-19 / 32 " for the pickup or trip point.

If you know which type of needle will be used by the customer, and test with that type of needle, the following settings are recommended: measuring from the side of the centerpost, 4-21 / 32 " for the 10 - inch set-down point, 5-21 / 32 " for the 12 - inch set-down point, and 1 % for the pickup or trip point.
When using an offset-shank needle, slight variations in set-down point can often be corrected by loosening the needle screw and rotating the needle slightly.

9. PICKUP ARM HEIGHT.
When properly adjusted, the pickup arm height should be such that, without a needle and with a single record on the turntable, the arm should be about 1/32 " above the record. The arm height depends on the location of the lift adjusting collar (10). As the collar is moved down, the arm is raised, and vice versa. When necessary, the pickup arm height may be adjusted by re-positioning the lift adjusting collar (10) as follows:
(a) The changer should be out of cycle.
(b) Lift the pickup arm and check to see that the pick up arm lift (19) is positioned properly over arm lift bearing pin (14). (See Fig. 5).
(c) Renove needle and place pickup arni on turntable close to its edge.
(d). Loosen set screw in lift adjusting collar (10).
(e) Remove slack by pushing up on push-off cam and shaft assembly (42). Do not compress the arm lift shaft spring (41).
(f) Using a # 6-32 Bristol wrench, place it in the set screw and slide the lift adjusting collar (10) down until it is snug against the pickup arm lift (19).
(g) Tighten set screw in the lift adjusting collar. (h) Check height.
If height is still incorrect, it may be necessary, to repeat the adjustment. Before doing so, it may be advisable to examine the shaft (42A) of the push-off cam and shaft assembly for nicks and burrs caused by the set-screws. Smooth shaft with file if necessary. The upper portion of the shaft is accessible if the push-off arm (5), head assembly (7) and lift adjusting collar (10) are removed. To prevent shaft from falling out through bottom, kecp in place with masking tape. When replacing the lift adjusting collar (10) and push off am (5), see paragraphs 9 and 11 respectively.

SERVICING AND REPAIR

10. RE - POSITIONING PICKUP ARM SUPPORT ASSEMBLY
(22). To assure proper set-down adjustment, this must be done carefully as follows if set screws are loose or if pickup arm support assembly (22) has been removed,
(a) Turn adjusting screw (32) (see paragraph 1) clock wise as far as it will go, then turn back counterclockwise for 2 full turns.
(b) Place a 12 " record on the turntable.
(c) With the changer out of cycle, manually move the arm control assembly (31) outwards as far as it moves freely. In this position, the arm control pin (31A) will be located as indicated at " A " in figure 2.
(d) Place pickup arm so that needle rests in first playing groove on the 12 " record.
(e) Tighten the two set screws in pickup arm support assembly (22).
(f) Make the final set-down adjustment as described in paragraph 1.

11. RE - POSITIONING PUSH - OFF ARM (5).
This must be carefully done if set screws are loose or push oft arm (5 } has been removed. (a)
Rotate the record support to the 10 - inch position. Remove push-off arm (5).
(b) Manually slide the push plate (70) over the rotating plate (7B) until a piece of metal 3/32 inch in diameter or # # 8-32 Bristol wrench can be inserted into the opening at the front of the center slot in the push plate (see " A Figure 6). If the 12 - inch push-off is faulty with this setting, try using a 1/16 " piece of metal or # 6-32 Bristol wrench.
(c). Put the changer into cycle and manually rotate the turntable until the riser plate (37) has traveled along the

Guide rods (51A) to a position furthest away from the turn table.
(d) Now position push-off cam and shaft assembly (42) so that it is held tightly against riser plate motion bracket (37A),
(e) Put push-off arm in position, leaving about 1/16 " clearance between the top of the push plate and the push off arm.
(f) Tighten set screws in push-off arm.

12. CHANGER REPEATEDLY GOES THROUGH CHANGE CYCLE WITHOUT PLAYING RECORD.
(a) Mounting screws on eccentric cam (61) may be loose. Tighten.
(b) Cushion spring (34) has slipped out of position and is on wrong side of riser plate tab (37B). Re-position spring. (See Figure 6). (C)
In normal operation, the trip spring (35) holds the arm control plate (36) against the riser plate (37). If the trip spring is faulty, it permits the arm control plate to rise too high above the riser plate. This causes the reject catch (62) to pass underneath the stop tab (36A). To correct, bend the legs of the trip spring closer together. If necessary re place trip spring,
(d) Eccentric cam (61) is bent so that reject catch (62) passes underneath stop tab (36A) on the arm control plate (36). To correct, straighten cam by putting changer out of cycle and pressing upward on cam near reject catch.

13. NEEDLE SLIDES ACROSS PORTION OF RECORD AFTER SET - DOWN ON 12 - INCH RECORD.
Cushion spring (34) has slipped out of position and is on wrong side of riser plate tab (37B). Re-position spring. (See Figure 6).

FIGURE 7. RECORD CHANGER, EXPLODED VIEW

SERVICE PARTS LIST

C 200 RECORD CHANGER

See Exploded View Figure 7 for Identification of Parts.