Cassette Deck; To Adjust Tape Speed; To Adjust Recording Level; To Adjust Playback Level - Samsung MAX-N72 Service Manual

1-2 Cassette Deck

1-2-1 To Adjust Tape Speed

Notes
1) Measuring tape: i) MTT-111 (or equivalent)
(Tapes recorded with 3kHz)
ii) MTT-5512 (or equivalent)
2) Connect the cassette deck to the frequency counter
as in figure 1-4.
Pre-Setup
Step Item
Pre-Setup
Condition
1) Deck 1:MTT-111
OUT
NOR
2) Press PLAY
1
(connected
SPEED
SW button
to the frequency
Control
3) Deck 2:Same
counter)
as above
1) Deck 1:MTT-111
2) Deck 2:MTT-5512
2 HI SPEED
Same as above
3) Press DUBBING
Control
SW button two times.

To Adjust Recording Level

Pre-Setup
Item
Step
Pre-Setup
Condition
Connect to
Insert MTT-5512 into
BIAS
JCW2 as in Figure
Deck2, then press
Electric
1
1-7 and read the
current REC button.
VTVM
Audio OSC. Cassette Deck
SPK OUT
IN
AUX IN
Figure 1-7
Samsung Electronics
Cassette Deck Frequency Counter
SPK OUT
Figure 1-4
To Adjust Standard
Turn CVR1 to
3KHz
left and right
Turn CVR2
to left and
6KHz
right
To Adjust Standard
L-CH: JSR1L and
25 mV
R-CH: JSR1R to
the right and left
VTVM
Oscilloscope
JCW2
IN OUT

1-2-2 To Adjust PlayBack Level

Notes
1) Before the actual adjustment, clean the play/recording
head.
2) Measuring tape :
output
i) MTT-114NA(or equivalent 12.5kHz AZIMUTH control)
ii) MTT-150(or equivalent : Dolby level 200nwb/m)
3) Dolby NR SW OFF
4) The cassette deck is connections as shown in figure 1-6.
Remark
! Adjust Deck 1 Play Level
Fig1-8
Pre-Setup
Step Item
Condition
TP1 OUT
(VTVM is
AZIMUTH
1
connected to
Fig1-8
the scope)
Same as
PlayBack
2
above
out Level
Remark
@ Adjust Deck 2 Play Level
See diagram
for adjustment Pre-Setup
Step Item
Condition
locations
TP1 OUT
1
(VTVM is
AZIMUTH
connected to
the scope)
PlayBack Same as
2
out Level above
Alignment and Adjustments
Recording /Play head
FWD PLAY
AZIMUTH control screw
Cassette Deck
SPK OUT
(GND)
Pre-Setup
To Adjust Standard
After putting MTT-
1) Turn the control
114NA into Deck 1
screw to as shown Max output
1) Press FWD PLAY and same phase
in Figure 1-5.
(both channels)
2) Adjust the right
button.
control screw to
2) Press REV PLAY
playback REV. Mode
button.
L-CH:Turn JSR2L
Adjust to level
PLAY MTT-150
to the right and
and same Aux
on Deck 1.
left level.
R-CH:Turn J SR2R to
the right and left
Standard
Pre-Setup To Adjust
After putting MTT-
1) Turn the control
114NA into Deck 2
screw to as shown
Max output
1)Press FWD PLAY
in Figure 1-5.
and same phase
2)Adjust the right
(both channels)
button.
control screw to
2)Press REV PLAY
playback REV. Mode
button.
L-CH:Turn JSR3L
Adjust to level
PLAY MTT-150
to the right and
and same Aux
left
on Deck 2.
level.
R-CH:Turn JSR3R to
the right and left
REVERSE PLAY
Figure 1-5
Oscilloscope
VTVM
In Out
Figure 1-6
Remark
After
adjustment
secure it with
REGION
LOCK.
See the
diagram for
adjustment
locations.
Remark
After
adjustment
secure it with
REGION
LOCK.
See the
diagram for
adjustment
locations.
1-3