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4. Alignment and Adjustments
4-1 Tuner
SET
FM Oscilloscope
FM THD Adjustment Output
Antenna Input
GND
SSG FREQ. 98 MHz Terminal
Adjustment FM S.S.G
output
point FM DETECTOR COIL Distortion Meter Input
Speaker
(TL3) Terminal
Output 60 dB
Minumum Distortion (0.3% below)
FM TUND
TSR2
(Figure 4-1)
Figure4-1 IF CENTER and THD Adjustment
FM T.H.D
TL3
AM TUND
TSR1
FM Search Level Adjustment
SSG FREQ. 98 MHz 23 dB FM Antenna
Adjustment BEACON SET
point SENSITIVITY
(TSR2) SEMI-VR(5K) GND
FM S.S.G FM IN
Output 450kHz
Adjust IVR1 so that "TUNED" of FLT is 5 k
lighted (Figure 4-2)
*Adjust FM S.S.G level to 23dB
Figure4-2 FM Auto Search Level Adjustment
Samsung Electronics 4-1
Alignment and Adjustments
4-2 Cassette Deck
Recording /Play head
4-2-1 To Adjust Tape Speed 4-2-2 To Adjust PlayBack Level
Notes REVERSE PLAY
Notes
Cassette Deck Frequency Counter
TP1 1) Before the actual adjustment, clean the play/recording
1) Measuring tape: i) MTT-111 (or equivalent) FWD PLAY
(Tapes recorded with 3kHz) LINE OUT head. AZIMUTH control screw
ii) MTT-5512 (or equivalent) 2) Measuring tape :
output Figure 4-4
2) Connect the cassette deck to the frequency counter
i) MTT-114NA(or equivalent 12.5kHz AZIMUTH control)
as in figure 4-3.
Figure 4-3 ii) MTT-150(or equivalent : Dolby level 200nwb/m)
VTVM
Oscilloscope
3) Dolby NR SW OFF Cassette Deck
4) The cassette deck is connections as shown in figure 4-5. LINE OUT
Step Item Pre-Setup
Pre-Setup To Adjust Standard Remark TP1
Condition
(GND)
In Out
1) Deck 1:MTT-111 ! Adjust Deck 1 Play Level
OUT Figure 4-5
1 NOR 2) Press PLAY
SPEED (connected Turn JSR5 to 3KHz Pre-Setup
SW button left and right Step Item Pre-Setup To Adjust Standard Remark
Control to the frequency Condition
3) Deck 2:Same
counter)
as above After putting MTT-
1) Turn the control
TP1 OUT 114NA into Deck 1 After
screw to as shown Max output
1) Deck 1:MTT-111 (VTVM is adjustment
1 AZIMUTH 1) Press FWD PLAY in Figure4-4. and same phase
Turn JSR6 secure it with
2 HI SPEED 2) Deck 2:MTT-5512 connected to button. 2) Adjust the right (both channels)
to left and 6KHz REGION
Same as above the scope) control screw to
Control 3) Press Hi Speed right 2) Press REV PLAY LOCK.
playback REV. Mode
dubbing SW button button.
L-CH:Turn JSR1L
PLAY MTT-150 See the
PlayBack Same as to the right and
2 150mV diagram for
out Level above on Deck 1. left
adjustment
R-CH:Turn JSR1R to
locations.
the right and left
@ Adjust Deck 2 Play Level
Pre-Setup
Step Item Pre-Setup To Adjust Standard Remark
Condition
After putting MTT-
TP1 OUT 1) Turn the control After
1 114NA into Deck 2 screw to as shown Max output
AZIMUTH (VTVM is adjustment
1)Press FWD PLAY in Figure4-4. and same phase
connected to secure it with
button. 2)Adjust the right (both channels) REGION
the scope) control screw to
2)Press REV PLAY LOCK.
playback REV. Mode
button.
L-CH:Turn JSR2L
PLAY MTT-150 See the
to the right and
2 PlayBack Same as 150mV diagram for
on Deck 2. left
out Level above adjustment
R-CH:Turn JSR2R to
locations.
the right and left
4-2 Samsung Electronics
Alignment and Adjustments
4-2-3 To Adjust Recording Level
NOTES
1) Connect the measuring instruments as shown in Figure 4-6.
2) Set the DOLBY NR Switch off.
3) Measuring tape:
MTT-5512 (or equivalent: normal recording)
JSR3L
REC
4) The input signals supply 400Hz 400mV into AUX IN of AMP (AUDIO OSC.)
SIGNAL CURRENT
JSR3R
Item Pre-Setup
Step
HI-SPEED
Pre-Setup To Adjust Standard Remark
JSR6
JSR5
NOR SPEED
Condition
JSR1R
DECK1
L-CH : JSR3L
Normal Connect to TP2 Insert MTT-5512 to the right and See diagram
1 electric as in Figure4-6 400 mV
into Deck2, then left. for adjustment
JSR1L
current
PLAY
and read VTVM press REC button. R-CH : JSR3R locations
for
to the right and
recording
left
See diagram
Connect to Insert MTT-5512 into L-CH: JSR4L and for adjustment
BIAS
TP3 as in Figure Deck2, then press R-CH: JSR4R to 6 mV locations
2 Electric
4-6 and read the the right and left
current REC button.
VTVM
JSR2R
DECK2
JSR2L
PLAY
VTVM Oscilloscope
Audio OSC. Cassette Deck
LINE OUT
IN TP
AUX IN
IN OUT
Figure 4-6
JSR4R
BIAS
CURRENT
JSR4L
Samsung Electronics 4-3