Table of Contents
Advertisement
-ECIFICATIONS
.PE RECORDER
SECTION
cording system:
AC bias, double track
. rasing system:
Tape speed:
Recording time:
DC erase
1-7/8 ips. (4.75cm/sec.)
60 min. (C-60 cassette)
Rewind & Fast forward time:
90 sec. (C-60 cassette)
Frequency response:
50 ~ 10,000Hz
Wow & Flutter:
0.3% RMS
Signal to noise ratio:
40 dB
Input:
EXT MIC: 680 ohm
AUX: 220K ohm
Output:
EXT SP: 8 ohm
RADIO
TUNER
SECTION
Frequency range:
MW:
530 ~ 1,605kHz
GENERAL
Output power:
Power source:
Speaker:
Dimensions:
Weight:
FM:
88 ~ 108MHz
(M2422F)
SW1:
2.3 ~ 7.3MHz (M2422H)
SW2:
7.3 ~ 22MHz {M2422H)
2.2W maximum
DC: 6V (UM-1 x 4)
AC: 120/200/240V
4-3/4" (12cm) P.D.S.
8-5/16''(H) x 4-1/32'(D) x 13-7/32"'(W)
(211 x 102 x 335mm)
6 Ibs. approx.
ADJUSi MENT
OF
PINCH
ROLLER
oh
Set the unit to the PLAY
mode.
2. Apply a tension gauge to the pinch roller. Read the gauge at the
precise
moment
when
the pinch roller separates from the capstan.
3. If the gauge reading is within a range of 450 - 650 g, no adjustment
is necessary,
if otherwise, make adjustment by changing the force of
the spring coil. (See exploded view No. 21)
TUNER
ADJUSTMENT
AW
ADJUSTMENT
(M2422F & M2422H)
;
PREPARE:
Adjusting
ccs
0.8. C.
3
4
6 |
FT
AERIAL
Repeat adjustments.
Connect
sweep
generator
to test
loop.
Connect oscilloscope
to EXT. SP terminals.
Connect
AM
SG to | Connect VTVM
to
test loop.
speaker terminals.
Connect
AM
SG
to | Connect VIVM
to
test loop.
speaker terminals.
1. Variable
Capacitore completely closed.
2. Set the dial pointer to very left line of dial scale.
3. Connect sweep
generator, AM
SG, VTVM
and oscilloscope.
SG frequency
| Position of tuning dial | Adjustment
ve
Oscilloscope
S03 nedlton
108
a
eee
eee
ee
30%
modulation)
30%
modulation)
TORQUE ADJUSTMENT
1. Set the unit to the PLAY,
FAST
FORWARD
or REWIND
mode.
2. Measure
the each torque with a torque gauge. They should be as
following;
PLAY
30 - 60 g/cm
FAST
FORWARD
60 - 130 g/cm/cm
REWIND
60 - 130 g/cm/cm
3. If the each torque fails to reach the standard value. Clean the drive
belt, flywheel, motor pulley, take-up reel, idler and rewind roller
with a cotton swab soaked in alcohol.
~
ADJUSTMENT
OF
HEAD "AZIMUTH
1. Connect
the
unit to a power
source
and
insert a test cassette
tape
(7K Hz pre-recorded) in the cassette compartment.
2. Connect
an 8 ohm
dummy
load with the VTVM
across it to the
EXT.
SP jack on
the unit.
3. Set the unit into the PLAY
mode and turn the tone contro! knob
untill maximum.
4.
Turn
the
head
azimuth
adjusting
screw
until
the
maximum
valu
with reading on the VIVM.
5.
Fasten the adjusting screw
securely by applying
paint or glue.
SCREW
ORIVER
COUNTERCLOCKWISE
CLOCK WISE
AZIMUTH
ALIGNMENT
ERASE HEAD
TEST
TAPE iC ASSET TE)
Hepes
RECORD 'PLAY HEAD
mh
dy
RPL
THESE ARE NOT ADJUSTING SCREWS
HEAD @
LEAVE THEM UNTOUCHED
Clockwise
GouNTER
COCKWISE
PERPENDICULARLLY
INCLINATION
OF R P HEAD
Fig. 2
At position
of no
MAX.
untequired signal.
(
4. Selector switch to "AM".
5. Use a screwdriver with plastic grip for all adjustments.
Advertisement
Table of Contents
