Concertone TR-100 User manual
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GENERAL INFORMATION
The Concertone Model TR-100 is a two-speed, battery-operated tape recorder. The unit
records on one hatf the tape $i&h vhich doubles recording time of a reel of tape. Standard 3"
reels are used along with standard-vidth recording tape,
The recorder speeds are 3 3/ 4 andL 7/ 8 ip6. Recording times for both sides of a stand-
ard reel of tape are:
Speed
3 3/4 ips
i ?/8 ips
HOWARD W. SAilS &
The listing of any available replacement part herein does
not conatitute in any caae a recommendatlon, warrmty or
glarantyby Horard W. Sems & Co., Inc., as to the quality
and Buitability of auch replacement part. The numbers of
thes€ parts have been compiled from lntormation lurniehed
to llovard W. Sams & Co., hc. , by the manulacturers of
cQ52I
Time
34 min.
70 min.
G O.r I t C. Indtanapoll3 6, tndlana
The poser supply consists of one 9-volt battery and six I V2-volt batteries vhich are
contained ln the tape recorder case. An external AC poner supply \thich allows the unit to be
operated from an AC llne voltage is also available.
Manufactured By:
American Concertone, lncorporated
9449 West Jefferson Boulevard
Culver City, California
the particular type of replacement part listed. Repro-
ductlon or ue, without expresa permiaaion, of edltorial or
pictorial content, in any mamer, is prohibited. No patent
liability is aeeumed vlth reapect to the uae of the informa-
tioncontainedherein. @1962 lrowardw, Sama & Co., Inc.,
va
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Indianapolk 6, Indiana.
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Printed in U.S- of America
CONCERTONE
MODEL TR..IOO
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Function Selector
The function selector seleits the different modes
of operation. Turning the control in a clockwise di-
rection from the Stop position places t}e unit in the
rewind mode. Turning the control counterclockwise,
from the ftop position, the first posltion ptaces the
unit in the Play mode. The second position in the
counterclockwise direction, places the unit in the re-
cord mode.
Volume
This control varies the playback volume of t}re
recorder and determines the recording level when
making a recording.
FUNCTION OF CONTROLS
OPERATI NG INSTRUCT I ONS
VU Meter Switch
,The meter switch determines t]te function of the
meter. With the switch in the Volt position, the meter
indicates the condition of the motor batteries. With
the switch in the VU position, the meter is used to
monitor the recording level.
AC-DC Switch
When the switch is in the DC position, the bat-
teries are used to operate the unit. With the switch
in the AC position, an external AC power supply must
be connected to operate the recorder.
Threading the Tape
l. Place a full reel of tape on the supply spindle
and an empty reel on the take-up spindle.
2. Unwind about 8 inehes of tape from the supply
reel. Thread thetape into the headslot and past'
the capstan making sure that the dull sideof the
tape faces the rear of the recorder.
3. Insert the free end of the tape into one of the
radial slots in the reel and rotate the reel to
secure the tape and take up the slack.
To Record f rom Microphone
l. Insert the Microphone plug into the jack marked
tMictt.
2. Set the recorder up for the desired speed.
3. Rotate the Function selector to theRecord posi-
tion.
4. Hold the microphone about 6 inches from the
mouth and speak in a normal, clear voice.
5. Adjust the volume level so that the needle stays
within tlte red portion of the scale.
NOTE: Correct volume level on recording is
very important.
Too weak a signal will result in weak playback
and high background noise. Too strong a signal will
result in distortion during playback.
To Record from a Radio or TV Receiver
Place the microphone about 6 to 12 inches in
front of the radio or TV receiver speaker. Turn the
radio volume control to a normal level. Set the re-
cording level and record as deseribed under "To
Record from Microphone".
Dual-Track Recording
These recorders are designed to record and
play on one-half the tape width at a time. After the
flrst side of the tape is recorded, remove thefull reel
from the take-up splndle, turn the reel over, and
place it on the supply spindle. Then record this side
of the tape"
Page 2
Rewind
Torewind the tape, rotate the Function selector
control to Rewind
To Change Tape Speed
To change the tape speed from 3 3/4 ips to
I / 8 ips, remove the knurled thumbscrew (25) from
the capstan shaft and lift off the capstan sleeve (18).
Clean the eapstan shaftof any oil before threading the
tape.
To Play a Recording
l. Thread the tape as described under "Threading
the Taperr.
2. Turn the function selector to the Play position.
3. Adjust theVolume control to the desired listen-
ing level.
To Erase a Recording
In the Record position, any recording on the
tape is automatically erased before a new recording
is made. Should it be desired to erase a recording
without recording nern material, follow the normal
recording procedure but set theVolume control to the
zero position and disconnect the microphone.
To Edit and Splice Tape
N0TE: It is impossible to edit and splice one
track without affeeting the other. Record-
ings to be edited should be limited to one
track recordings only.
l. Tape may be edited by cutting out unwanted
portions, or by joining selections into another
sequence. Announcements can be inserted be-
tween selections, etc. Unused tape can be
spliced for reuse.
2. For best results, cut the tape at a slight diag-
onal, butt the ends.together, and fasten on the
glossy side with splicing tape. Trim off any
excess width.
To Rlmove the Mechanism f rom the Case
I. Remove two screws from the head cover and
lift the head cover up from the transport.
2; Remove four screws from the front plate.
3. Remove the function selector knob. Set-screw
can be reached through t}te front.
4. Removetwo screwsfrom the frontand onebelow
the AC/DC switch and lift front cover up, being
careful not to break any wires.
5. Unsolder the meter wires and speaker wires.
Tag these wires to insure proper replacement.
Remove the AC/DC switch from the front cover.
6. Remove four screws from the transport cover
plate. Remove the pressure roller and liftplate
off.
7. Remove the transport from the case by remov-
ing two screws from the front and five from the
bottom of the case. Carefully lift the transport
up out of the case.
8. Removescrew from pressure pad assembly and
lay the assembly over to one side.
9. Place the function selector in the Record posi-
tion. Remove three screws holding the headand
tape guide assembly. Remove the take-up belt
(24) from the pulleys. Lift the head mounting
ptate (10) and lay to one side.
10. To reassemble the unit, reverse the foregoing
procedure.
DISASSEMBLY
ADJUSTMENTS
Record-Playback Head Height
Remove the head from the head mounting plate
(10) and place or remove fiber washers until proper
head height is obtained-
Erase Head Height
Remove the erase head (12) from the head mount-
ing plate (10) and place or remove fiber washers untll
proper head height is obtained. Adjust the lead until
the topedge of thepole piecesis evenwith the topedge
of the tape.
Record- Playback Head Azim uth
Uslng a prerecorded tape, adjust the azimuth
adjustment screws until maximum high frequency
ls obtained.
CLEANING
Toinsure proper performance, clean the heads,
tape guides, and all driving surfaces with a commer-
cial head cleaner or alcohol.
LUBRICATION
When the unit is dismantled for repair, all ro-
tating parts should be lubricated" Using a good grade
of light lubricating oil, place a drop on the capstan
shaft, spindle shafts, pressure roller shaft, and drive
pulleys. Wipe away all excess oi1.
MECHANICAL PARTS LIST
3a
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14
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2
3
4
5
6
7
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4726-46
4726-31
4?26-30
4726-45
4726-43
4726-34
Motor
Motor Tension Spring
Capstan Drive Wheel
Pressure Pad Tension Spring
Pressure Roller
Pressure Pad Assembly
Functlon Cam Tension Sprlng
Take-up Arm Return Spring
Function Cam
Head Mounting Plate
Tape Guide
Erase Head
Rewlnd Pulley
L4
l5
l6
L7
l8
r9
20
2L
22
23
24
25
4726-32
4?26 -36 S
4726-44
4726-40
4726-367
4726-35
4726-33
4?26-39
Rewind Drive Belt
Supply Spindle Assembly
Supply Spindle Brake Arm
Record-Playback Head
Capstan Sleeve
Take-up Actuating Arm
Take-up Spindle Assembly
Take-up Puffey (3)
Brake Arm Tension Spring
Take-up Spindle Brake Arm
Take-up Drive Belt
Page 3
TO P V IEW OF MECHAN I SM WI TH COVERS REIV1OVED
TROUBLE CHART
Sym ptom Cause Remedy
Transport will not operate
on any function. Dead motor batteries.
Oil on capstan drive rvheel (3).
Motor pulley tension spring (2)
broken or disconnected.
AC/DC switch in wrong posi-
tion for power source being
used.
Replace motor batteries.
Clean capstan driv.e wheel (3).
Connect or replace motor pulley
tenslon spring (2).
Set AC/DC switch to proper po-
sition for power source being
used.
l.
2.
3.
4.
1.
2.
3.
4.
Low or no volume. Amplifier battery weak or dead.
Pressure pad tension spring (4)
disconnected or broken.
Record-Playback head (17) not
properly adjusted
Replace the amplifier battery.
Connect or replace pressure pad
tension spring (4).
Adj ust Record-Playback head (l?)
as described under 'Record-
Playback Head Height".
l.
2.
3.
l.
2.
3.
No rewind. I.
2.
Rewind belt (14) broken or off
pulley.
Oil on rewind pulley (13).
Place belt (14) back on pulley or
replace.
Clean rewind belt (14) andpulleys.
l.
2.
No takeup. t.
2.
l.
2. Take-up belt (24) broken.
Oil on take-up belt (24). Replaee take-up belt (24).
Clean take-up belt (24) and pul-
leys.
Wow and flutter. Oily or dirty driving surfaces.
Worn pressure roller (5).
Weak motor pulley tension
spring (2) weak.
l.
2.
3.
l.
2.
3.
Clean all driving surfaces as des-
cribed under'Cleaning".
Replace pressure roller (5).
Replace spring (2).
Page 4
l. Defective motor (l). l. Replaee motor (l).
Motor is exceptionally noisy.
25877
25877
25877
2587s
CHASS IS TOP VIEW - AMPLIFIER COMPONENT IDENT.
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PAGE 8
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