3. Place fuu reel of tape on take-up spindle but
do not thread- Turn Fast Fora'ard-Rewind
control to Rewind position. Adjust tab C
(see Exploded Vieyr) until tahe-up spindle
rotates. R€adjust until it stops.
4. Place full reel of tape oII leed spindle but do
notthread tape. Turn Fast Forn'ar:d-Rewind
controlto Fast Forward position. Adjust tab
D (Eee ExplodedView) until f€ed spirdle
rotates. Readjust until it stops.
5. Sincethere may be interaction between these
adjustmentE, Steps 3 and4 may hale to be re-
peated.
Take- up Tens ion Adjustment
Iltahe-up tersion is not properly adjusted, flutter
willoccur. This is particularly noticeable at 3 3/4 ips
and during initial winding of tape on take-up reel. Do
not adjust if flutter occurg during lirst few leet ot tape
tahe-up. This is normal, and recording should not be
made during this time.
l. Place a full reel oI pretecolded tape on feed
spindle (right), thread tape as for playback,
and wind about S leet oftape onto ta.ke-up reel.
Use small (5") reels andtape recorded a 3 3/ 4
ips.
NOTE; Footage indicato! belt must be on pulleys.
2. Check ta.Le-up reel action by slowly turning
Record-Play control to Play. Take-up reel
shouldstart revolving at 6ame time pressu!e
roller (33) engages with capstan shalt F. ff
adjuEtment is correct, there Ehould be no
tape overrun before it starts to tate up, or no
flutter in the sound. Il adjustment is required ,
proceed witi Steps 3 a.nd 4 .
3. Bend tab B on take-up lever (86) to right or
leftuntil proper take-up action with no over-
run or llutter is obtained and tape ftom leed
reeltoheads shows no elidence ot vibrating.
4. Slight additional adjustment may be obtained
bybeldingtabA on take-up reel arm (7?) and
tab G on take-up iever (86).
Play-Record Head Adjustment
If play-tecord head (31) is not perfectly aligned
'irrith tape, 1ow output, 1os6 of high frequencies, or
track overlap may result.
To Align Play-Record Head (3I)
l. Fir6t, adjust for output ald frequencv re-
sponse. This adjustment must be made with
a 3, 000-cyc1e tape, recordedby a unit in good
operating condition. Connect an output meter
across spealer voice coil of lrrdt to be ad-
justed. While playing back the 3,000-cyc1e
notetape, moveheadbackand Iorth on mount-
inguntil maximum deflection on output meter
is achieved.
If a 3,000-cyc1e note tape is not available,
uEe a recording ydth a high note content ard
adiust as described in the ioregoing.
Erase Head Adjustment
Era.se head (29) and head mounting bracket a"6-
sembly (25) have been prealigned at thqtactory, and
no adjustments are provided. To replace era6ehead
(29), play-record head (31) must be iemoved. AJter
era,seheadis ircta1led, play-record head (31) must be
realigned. (See "Play-Record gead Adjustment.,')
CLEAN ING
Record ard era5e heads, capstar shaft F (see
Exploded View) and pressure roller (33) accumulate
tape coating residue, worn olf the tape as it passea
these parts. This can cause distortion, n'eak output,
andpoor eraaure. Use a soit cloth and alcohol to clean
head surfaces, capstan, and pressure roller.
LUBR ICAT ION
Approximately once a year, or when parte are
replaced, lubricate as followsi
With No. 20 motor oi1:
l. Take-up reel arm (?7) bushing.
2. Feed reel arm (109) bushing.
3. Bearings of spindles (32).
4. Flywheel (98) bearings.
With "Staput" No. 312 grea,se, "Lubriptate" or
equivalent.
1, Pressureplate (43) at slide button, and guide
on right side.
2. Stud ol cam alld bushing as€embly (63).
CAUTION: Do not oil motot bearinga unless absolutely
necessary. Excess oil vill be thrown off ,
causing slippage of puUey alld lol1ers .
When necessary to oi1 bea-rings, use as
little oil aa possible. Wj.pe any oil from
pulleys and rollers I'ith a petroleum solved
suchas alcohol. Do not uae carbon tetra-
chloride-
AMPLIFIER ADJUSTMENT
The follorring adjuatments should b€ made when,
ever cir:cuj.t components are leplaced or repaired.
These adjustments must be made witll set turned
on a.nd in Recor.d position with no signal input,
1. Adjust oscillator coil (L2) for 52. b-ki reading
on lrequency meter.
2. Adjust meter (R3) until needle rests direcfly
over black dot at lelt side ol meter. With
meter (R3) properly adjusted, needle should
move sLlghtly when set is turned on ard off-
3. To adjust 52.s-kc trap (LI), volume must be
set at maximum. Adjust trap (L1) for mini-
mum 52.s-kc reading at external amplifier
jack.
4. Set hum adjusi (R4) for minimum reading a-
cross load at external speaker jack s'ith
volume and treble set at maximum.
3
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