Sears Roebuck & Co. 101 Schematic

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Product Information:
Model:101
Manufacturer:Sears Roebuck & Co. (Silvertone)

Schematics Content:

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Page 1:

RCD. CH. SEARS PAGE 18-1

SEARS, ROEBUCK 81, CO4

zw>ma Shogun ...ohm .mmm

(C)John F. Rider

Page 2:

RCD. CH. PAGE 18-2 SEARS
MODEL 101,201.; SEARS. ROEBUCK 81, CO.

(3) Place stack of records over Spindle Cap (A-2) and on Record Support (A-4).
NUl'E: Maximmn load is 12 ten-inch records or 10 twelve-inch records` -'
(4) Swing Hold-down Finger (A-S) so that it rests on top record. `

l 'gi ;;art operation, press Pick-up Arm (A-l) down. thus depressing Single Control Button
1 Automatic Shut-off:

After playing tie last record, tl'n Pick-up Arm (A-l) will return to rest position on the
Control Button ard tlr motor power will be autcmtically shut off.
Reject Records:
In order to reject a record, depress the Single Control Button (A-S)
Manual Stopping:
To discontinue operation before the Automatic Shut-off goes into effect, remove any re-
v cords remaining on Record Support (A-4) and depress Single Control Button (A-6).
(l) Retire spindle ap (ll-2) until ir is aligned with spindle (A-s).
(2) Turn Hold-down Finger (A-S) aside.
(5) Lift records, tilting slightly to clear Record Support (A-4).

MANUAL oPERATioN f

(l) Make lure Spindle Cap (A-Z) is aligned with Spindle (A-S).
(2) Place record over Spindle (A-3) and on to turntable (A-7).
(3) Place Pick-up Arm (A-l) on outer edge of record. This will start motor.

CAUTION

(l) DO NOT bend or strain the Spindle Cap (A-2) #hen loadin l d'

<2) Do No'r force rne Picnup Arn (A-l) while in cycle. s ?r un an mg records'

(3) D3 NC; overload the changer. The naximuln load is either 12 ten-inch records or 10 twelve-inch

(4) D0 NOT leave records on Record Support (li-4) when turning off set, or warpage of the

will result , records

DESCRIPTION OF CHANGE CYCLE

The Model 204 Record Changer is an automatic cam type changer, featuring Single Button Control Auto-
matic Shut-off and Eccentric Spindle Record Selection.
Operation

single num-n control:

Initial depression of the Single Button Control (A-6) causes a lateral motion of the

Automatic Trip Bar (5-31) which in turn tilts the Mercury Tip Switch (8-39) tothe CMACT

or ON position thus supplying power to the motor. The motion of the Automatic Trip Bar

(8-31) causes the Carrier Lever (B-l4) and its attached Drive Wheel (A-10)t0 cone in con-

tact with the rin` of the Turntable. The consequent revolving motion of the Drive Wheel

(A-lO) is transmitted to the Main Cam (fl-15) through a Flexible Coupling (8-16) and Worm
Drive (fi-17) assembly.

A single revolution of the Main Cam (B-lS) results in complete automatic cycling of
the changer. This incleles selection of record from stack, lifting Pick-up Arm (A-l)from
rest position ard setting needle on edge of record. Upon completirm of the revolution,
the Autofmtic Trip Cam (13-13) engages with the blCEk On the Trip Lever ard pulls the
carrier lever (la-14,) back ro its original position eu that the Drive wheel (ll-lo) is no
longer engaged with turntable rim.

(3) Record Feed: ,i

The lover side of the Main Cam (3-15) controls record selection. Motion of the Feed
Cam Roller (B-lQ) about the cam results in a backward and forward movement of the Feed Sec-
tor Lever (B-lB) thus engaging the Record Feed Pinion (5-20). This in turn cause! the Ec-
centric (A-SS) to first rotate to prooer position for record selection and to then return,
allowing record to dron over Spindle (A-B).

(4) rick-up Arm Movean

The upper Side of the Main Cam (B-lS) controls'Pick-up Arm (A-l) movement. Lift is
effected by motion of the Lift Pin (B-Z4)along the upper horizontal face of the cam as it
rotates. Direction is controlled by engagement Of the Main Cam (B-lS) with the Sweep le-
ver Pinion (8-29). The Sweep lever (5-21) is attached to the Pick-up Arm (A-l) by means
of a clamp (5-22) aronnd Pick-up Arn Pivot sleeve (la-23). A buss projecting fron the up-
per side of the Main Cam (B-lS) displaces the Stop lever (8-25) at the end of the change
cycle, inns permitting :he Pick-np Arn tp proceed across :he record.

(5) Positive Trip Action: v

As the Pick-up Arn approaches the Spindle (A4), the Sweep Lever (8-21.) hits thelbsi-
rive Trip screw mounted on ure carrier-Trip Lever Assembly (la-14). This action reengnges
the drive wheel with the turntable rim and starts a new cycle,

(6) Pawl Trip Action:

Any reversal of the direction of the Sweep Lever (8-21) travel before positive trip r
action takes place causes the Sweep Lever (B-Zl)to push forward a Pav/l mounted on the op-
posite side of the Trip Lever from the Positive Screw. This movement also has the effect \
of reengaging the Drive Wheel (A-lO) to start a new cycle. r

(C)John F. Rider

Page 3:

RCD4 CH. SEARS PAGE 18-3 I
wSEARS, ROEBUCK 'ai co. 'f "'EODEL 101,201.1

(7) Ten o: Twelve-Inch Operation:

Adjusting the Record Support (A-4) to the ten-inch or twelve-inch positionlowers the
Selector Rod (8-40) a definite degree. The length of the extension of this rod determines
the position of the Stop Selector lever (E433) which in turn controls the Stop lever
(la-2s). The letter is the meer.. ef rewlreirig the dimmee the sweep Lever (Banana ire
attached Pick-up Arm (A-l) travel before the Pick-up Arm (A-l) is lowered to the edge of
the record.

(S) Automatic Shut-off:

Release of the Record Hold-down Finger (A-S) lowers the Shutroff Rod (8-30) and for-
eee the step selector lever (ta-sa) completely clear ef ne seep Lever (ii-25). The letter
is then able to move into a position which completely blocks any forward motion of the
Sweep Lever (B-Zl). Consequently, the Sweep lever (13-21) cannot perform its usual func-
tion of actuating the switch lever (5.37). Thug, the swlreh Lever Roller (fi-sw rerelne
in the path of the Stop lever (Ii-25). On completion of the cycle, the Stop Lever (IB-25),
in returning to rest position, hits the Switch [ever Roller (B48) and tilts the Mercury
Tip Switch (li-39) to the OPEN or (FF position.

No lubrication should be necessary.!lowever,in case of squeaks or stiffness of opera-
tion,a drop of any good light machine oil on the bearings,motor,arrl at other pivot points
should be smilied. A light application of grease to the worm also might help.

SPINDLE CAP

ECCENTRIC PICK-UP ARM

SPINDLE

EFT mN

RECORD FEED BEND HERE

PINION

LOOSEN THESE
TWO SCREWS

FIGJ FIGS

SERVICE ADJUSTMENT TI PS

IF CHANQR TRIPS BEFmE CMLETIGI 0F THE RECORD:

Turn the Positive Trip Screw (34|) Clockwise.

IF CHANQR FAILS T0 TRIP AFTER CWPLETIQI 0F THE REMO:

Turn the Positive Trip Scfew (B41) counter-clockwise.

IF THE DROP POINT 0F THE PICK'UP ARM IS NOT AT PROPER POINT UI THE RECUQDZ

Leeeer. the serew an the sweep Lever clamp (822) slightly end reposition the Pick-Up Arm (Alwlrh reepeef

IF THE TURNTABLE SPEED IS L04:
neue sure the Drive wheeldees ner strike the. rim ef the turneeble. lf neeessery, reediuer eeeenrrle bushing

Cn the Drive Wheel. (NOTE: This adjustment should be exceedineg slight as a larer movement may Cause

. Check for grease Or oil on the Idler Wheel. of the Motor and inside of turntable. Wipe with carbon

Check for sticky Idler Wheel plate on the Motor. Free with a screw-driver.
IF THE CHANGER STALLS IN CYCLE:

Remove any grease on the Drive Wheel or inside of turntable with carbon tetrachloride.

Check the mesh of the Vlorm Drive (317) and Main Cam (BlS) for proper clearance. Loosen screws on main
bracket arxi tighten. (See Figure l).

Check for binding in the Spindle Assembly (See Figure 2). Disossenvble Index Collar and record Feed Pinion
(820), remove Spindle Cap (A2), Eccentric (A35) and Eccentric Rod.

(C)John F. Rider

Page 4:

RED. CH. PAGE 18-4 SEARS

MODEL 101,20I4 SEARS, ROEBUCK 85 CO.

Check for freeness ard remove binds.

The following cautions should be observed in reassembling the Spirdle Assenbly:

Reassenble with a mxilmm end play of .005" between Eccentric (A35) and Spindle Cap (A2).

The Eccentric (A35) should be in line with the Spindle (A3) when the changer has completed its

The Feed Sector lever (818) should mesh with the Record Feed Pinion (820) as shawn in Figure 2-
Aiign spindie cap,(A2) with spindle (A3) in detent position.
IF THE Rim FAIL T0 DROP!

Check the meshing of the Feed Sector Lever (BlS) with the Record Feed Pinion (520).
Figure 2.

Reset as shown in

IF `II'IE FIRST RECORD m NOT PLAY:

Readjust the end of the Lift Pin (524) so that the needle will play the first record ( See Figure 3).
( NOTE: Do not bend Lift Pin (824) too much as this will prevent playing of top record on full stack.)
Make certain that the pick~up.lead does not hit the top of the Lift Pin (824) or hinge.

IF THE AUTQMTIC SHUT-OFF FAIIS T0 DPERATE:

Make certain that the Automatic ShutAOff Adjusting Screw (B32) mounted on the Stop Selector lever (B33)
nukes contact with the Shut-Off Adjusting Rod (BSU) when the Stabilizer Finger (A5) is released. Adjust
as required. Check leads on krcury Switch (839) for interference with the Switch lever motion. Check
Mercury switch (1139) cmtinuity.

IF A GRINDING NOISE CCCURS DURING THE CYCLING OPERATIGJI

The Worm ard Main Cam Asserrble are misaligned.
the worm for closer approximation with the cam:

Loosen the two small screws indicated an Figure l; adjust
tighten screws; lubricate worm and cam teeth.

lt is essential to leave some play between the two parts Or a definite bind will develop.
Always check through 360? movement of the

turning on 'the motor after an adjustment.)

cam by hard operation of the turntable before

IF A HIGI FREQUENCY BUZZ CCCURS DURING RECORD PLAY:

A slight burr or dust particular my be impeding the motion of the motor armature. With the motor tuLned
on, move tit armature up ard down several times by hard. This will usually wear off any obstruction.

IF AUDIELE NOISE INCREASES DURING RECCRD PIAY:

The shipping bolt is secured tootightly to permit the necessary compliance between the mounting board and
the record changer. Loosen the bolt slightly.

IF A IETALLIC CLICKING IS HEARD DURING CYCLING:

Loosen the two screws indicated in
and

There is excess horizontal end play in the Drive Spring Assenbly.
Figure l, adiust the drive assenbly for approximately .010 " horizontal end play, tighten the screws
lubricate worm ard cam teeth.

CAUI'IW: It isessential to leave at least .010 "end play ora bird will result. Always check through360?
rotatim of the cam by hand operation of the turntable before turning m the motor after an adjustment.

IF A CGITINGB BUZZING OOCURS: (EXTERNAL FAN-TYPE I/OTOR GILY)

The motor fan may be slightly bent ard the pitch disturbed.

Bend the fan slightly in either direction
until the noise disappears.

(C)John F. Rider

Page 5:

RCD, CH. SEARS PAGE 18-5

sEARs, ROEBUCK sr C0. vloDEL 101 , 2011
H01/ T0 IDENTIFY THE RECGQD CHANGER WTORS FCR CONVERSIG# T0 50 CYCLE OPERATIW: ;
ALLIANCE GENERAL INDUSTRIES
FAN-TWO BLADE TYPE - FAN- BLACK OXIDIZ ED '-
ON BOTTOM OF ROTOR ON TOP 0F ROTOR
# use PKG. #57312
ALso 'une vnm FAN A1 YoP
USE PKG' 573m Ano sorrow or Roma.
1. Remove the radio from the carton.
2. The record changer drawer CANNOT be opened until the shipping screws holding the record changer drawer
I are removed at the rear Of the radio.
3. Pull the record changer drawer out as far as it will go.
4. Go to the left side of the radio and examine the motor from the underside of the record changer drawer-
It may be necessary to remove a cardboard cover before the motor can be seen.
S. Compare the motor with the two illustrations above and determine the motor used. The min distin-
guishing points of each motor are given at the right of each illustration.
6. Whenlthe correct motor has been determined, the correct conversion spring will be found in the peck-
iee idenrified by the nerr nnrber given nr rhe right cf rne ncror illnsrrnrinn.
7. Instructions for installing the spring will be found in the envelope containing the spring.
1 8. Before repacking the radio, secure the record changer by replacing the shipping screws at the rear of
I; the record changer drawer.
R59743 Arm ~ Pick-up r Painted 1259733 Screw
849521 Bull Bearing Assy. 1259776 ser"
252911 Ball - Steel 1252910 Screw - Cartridge Att.
152963 Bushing - Drive Shaft R59771 Screw - Drive kch.
1 R59737 Bushing - Record Support R52921 Screw - Record Support Stop
.' 1252958 Bushing r Reis iner Drive 1159774 screw _ self Tripp-mg
_' 1159731 Burien r ringer 1159775 screw . self ripping
1152941 Cam Assy. R52899 Screw - Set
R59752 Carrier h Trip lever Assy- 16296 spacer - reed sector
' R52895 Drive Shaft Assy. R52592 Spindle Assy.
i 1252596 Drive spring Assy. 1152934 spindle cep Assy.
T 1152933 eccentric Assy, 1152947 spring >> csrrier lever
` R52929 Feed Sector Assy- 1159748 Spring - Counterbslnnce
y R59740 ringer - Record sinh. 169765 spring - cmrrol Button
v 1159750 Grnrrrer - rick-np leer: Rssvae Spring - Finger
i R59741 Housing - Manual Control R529" Spring . Mounting
1 11529121 Indexing caller AssyA R59764 spring - Pull-ln
' 1159751 1nd" ins Spring Assy. 1252945 spring r Record Feed
1159765 Lever >> stirring R59765 Spring - Stop lever
R59739 Lcckwisher 159768 spring _ switch Acruazing
R597" Lockwasher R59769 Spring - Switch Bracket Return
r 1152950 Lockwisher - Alignment Bracket 5159757 spring ~ Trip lanr
r 1152961 Leckwnsher - cnn Lever send 12597511 Spacer - Motor
. R52960 Loclnvssher - cen sri-d 1159757 srcp lever Assy.
352902 Lmszsher A Drive Spring R59759 Stop Selector lever h Bracket Assy.
162894 Lockwssher r Motor R59754 Stop Selector Rui Ally.
1152959 Lockwasher - Spindle R52956 Stud - Carrier Lever Pivot
R59742 hhnusl Control Pin Assy. R59761 Support - Record
1159735 Mercury switch Assy. - New Sty1e R597ss sweep Lever Assy.
` R59744 Motor 59786 Switch Bracket Assy. r &w Style
l R59745 Mounting - Vibration RS9753 Switch Lever Assy.
` 1152897 Nut - Alignment Bracket 1159755 Trip Bnr Assy.
\ R52?62 Nut - Cam Stud 1259729 Turntable
c 162954 Nut - Carrier lever Stir! 1252900 washer .
852w7 Nur - spindle 1159734 wash" v
R59746 Pick-UP Arm Hinge ASSY- R59738 Washer
1159747 Pin - Hinge R52st washer 'c'
. 1159749 Pin - Lifr 1159735 wisher 'c'
1 1152926 Pinion Assy. 1159777 warner 'c'
r :69730 Record supporr Housing Assy. R59770 wnsier _ spring .
r R52936 Retainer r Pick-uv Iced R59773 wash" < srsrring lever I
y 359732 Rnd - Autc-r Shutroff 162898 Worm Assy.
` 1152930 Roller - Feed (hm 1252826 Cryltrll Cortridgl (Autistic L70) __1

(C)Johr1 F. Rider

Page 6:

SEARS, ROEBUCK 85 CO4

MODEL 101,206

2.02.5 "53... vii 3A. 22mm .2.53 a.an N33..

225 .8m .350V .825.. ...z Elm 32m.. 2:.. E.. $1.0... .5.3m 1-1. 5: 5.5m 3.x. 32m..

.33.3.6 ....iuv v5.. 3:33.. 3.3. . SSW 82m.. .EE

xi com E: :5 ...LSE .E

RCD. CH. PAGE 18-6 SEARS

(C)John F. Rider

Page 7:

RCDY CH. SEARS PAGE 18-7
sEARs, ROEBUCK a., co. MODEL 101,206]

A combination of nunbers and lettersv is used in the' illmtratim ard in tIe` description-Ito facilitate-
locating parts in the illustrations. Parts with the prefix letter 'A' will be fourd in the illustration {
of the top of the record charger. Parts with tre pre-fix letter 'B' will be fourd in the illmtration of I
(It bottom of the clmnger. 1

DESCRIPTION OF OPERATION

The Mmlel 206 Record Changer is designed to autolmtically charge n series of records of stardard com-
mercial dineninns. with a minimum of record wear, arxi to manually play any standard record up to twelve

AUTOMATIC OPERATION

(l) On the Pick~up Arm Hub (A-7) are two detents marked A ard ll. Hold the Huh, move the Pick-
up Arm (A-B) sidewise arri engage tl: groove marked A for Automtic Operation.

(2) Adjust' the Record Support (A~1) for 10 inch or 12 inch records by rotating it one~half re-
volution in either direction. Thewide shelf is for lO inch records. the narrower for lZ

(3) Flipthe Toggle Plate (A-4), which hinges between the 10 inch and 12 inch positions on the
Record Support (A-l) toward the hack.

(4) Place the stack of records on the Spirxlle (A>>13)allowing them to reston the Record Sugaort.

(5) Flip the Record Hold-Down Finger over on to the top of the records. This mst be done to
provide tl: necessary tension to allow the records to drop correctly.

Dish the Record Changer Control Button (A42) to the 'm' position. If the

Page 8:

RCD. CH. PAGE 18-8 SEARS

MODEL lOl `206

SEARSY ROEBUCK s s,

A single revolution of the Pick-up Arm Cam (8-8) results in complete automatic cycling
of tI'e changer. This includes selection of record from stack, lifting Pick-up Arm (A-S)
home position and setting stylus on lead-in groove of record. Upon completion of one re-
volution, the Gam Dog hits against the Ratchet Release (8-4) and is lifted to its original
position. free of the Drive Drum (B-S).

Record Feed:

The outer edge of the Pick-up Arm Cam (B-8) moves the Record Ejector lever (8-10) in
a horizontal direction causing the Record Ejector Plate (A-Z) to move towards the spindle
ard return, pushing the next record off tl: shelf ard on to tle turntable.

Pick-up Arm Movermnt:

The upper side of the Pick-up Arm Cam (B-S) controls Pick-up Arm (A-B) movementr Lift
is effected by motion of the Lift Rnd (B-7) along the upper edge of the cam as the latter
rotates. Direction is controlled by engagement of the Pick-up Arm Cam (8-8) with the Pick-
up Arm Cam Follower Stud, which guides the Rick-up Arm Trip Lever (8-6). The Pick-up Arm
Trip Lever (8-6) is staked to the llub (A-7) whichcontrols horizontal' movement of tle Pick-
up Arm (A-S).

At completion of cycling the Pick-up Arm Cam (B-B) comes to rest in such a position
that the Pick-up Arm CamFollOI/er Stud has!! large arcs for free movement permitting the Pick-
up Arm

Page 9:

RCD. CH. SEARS PAGE 18~9
SEARS, ROEBUCK 81, CO,A MODEL 101,206

ALLIANCE

FAN-TWO BLADE TYPE-
ON BOTTOM OF ROTOR

GENERAL INDUSTRIES

FAN' BLACK OXIDIZED _

use PKG #513m

AND .OTTOII 0F IOTUI.

RUSSELL MOTORS

FANv BRAssr oN ToP AND
use PKG *57309

SAM PSEL

oN Top oF RoTore4
use PKG, #573m

l'lOl T0 IDENTIFY THE RECORD CHANGER MOTORS
FOR CONVERSION TO 50 CYCLE OPERATION.

l. Remove the radio from the carton.

2. The record chnger drawer CANNOT be owned until the shipping screws holding the record changer drawer
are removed It the rear of the radio.

3. Pun u! record changer drrwer our .1' far a, n ..311 go.
4. Go to the left side of the radioard examine` the motor from the underside of Ur record chnger drawer.

S. Looking nt the motor from this direction will give you the same view us shown in the illustratim in
at the left.

6. Compare the motor with the four illustratims above and determine the motor med. The min distin-
guishing points of each motor are given at the right of each illustration.

7. 'hen the correct motor has been determined, the correct conversion :gring will be found in the punk-
age identified by the part nunber given at the right of the motor illustration.

8. Instrwtiom for installing the spring will be found in the envelope containing the spring.

9. Before remcking the radio, secure the record changer by replacing the shipping screw! `at the rear of
the record changer drawer.

(C)John F. Rider

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