Samsung MAX-L82 Service Manual page 4

Alignment and Adjustments
2 Cassette Deck
2-1To Adjust Tape Speed
Notes
1) Measuring tape: i) MTT-111 (or equivalent)
(Tapes recorded with 3kHz)
ii) MTT-5512 (or equivalent)
iii) MTT-112B (or equivalent)
2) Connect the cassette deck to the frequency counter
as in figure 1-5.
Pre-Setup
Step Item
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
2-2. Adjust REC Bias Voltage
Pre-Setup
Step Item
Condition
Connect to
REC
Input MTT-5512
1
Bias
DCW3 as in
into Deck2,then
Voltage
Fig.1-8 and read
press REC button.
the VTVM.
2-3. Adjust L,R UNBALANCE
Pre-Setup
Step Item
Condition
Connect to
L,R
Input MTT-112B
1
UNBAL-
DCW3 as in
into Deck2,then
ANCE
Fig.1-8 and read
press PLAY button.
the VTVM.
Recording /Play head
AZIMUTH control screw
Figure 1-6
2
Cassette Deck Frequency Counter
SPK OUT
Figure 1-5
To Adjust
Standard
Pre-Setup
Turn CSVR1
toleft and right
3KHz±30Hz
(MAIN PCB)
To Adjust
Pre-Setup Standard
Turn DL4 to the
105KHz±0.5KHz
right and left.
To Adjust
Standard
Pre-Setup
Turn DSVR3 to
±0.5dB
the right and left.
Oscilloscope
VTVM
Cassette Deck
SPK OUT
(GND)
In Out
Figure 1-7
2-4 To Adjust PlayBack Level/REC
Notes
1) Before the actual adjustment, clean the play/recording
head.
2) Measuring tape :
output
i) MTT-114N(or equivalent 10kHz AZIMUTH control)
ii) MTT-5512
3) The cassette deck is connections as shown in figure 1-7.
Remark
1. Adjust Deck 1 Play Level
Pre-Setup
Step Item
±1%
Condition
range
SPK OUT
(VTVM is
AZIMUTH
1
connected to
the scope)
2. Adjust Deck 2 Play Level/REC BIAS
Remark
Pre-Setup
Step Item
MAIN PCB
Condition
SPK OUT
1
(VTVM is
AZIMUTH
connected to
the scope)
Remark
Recording
Fig 1-8
Bias
2
MAIN PCB
Voltage
Audio OSC.
Pre-Setup
Standard
To Adjust
After putting MTT-
- Turn the control
114N into Deck 1
Max output
screw to as shown
- Press FWD PLAY
in Figure 1-6. and same phase
(both channels)
button.
Standard
Pre-Setup To Adjust
After putting MTT-
- Turn the control
114N into Deck 2
screw to as shown
Max output
1)Press FWD PLAY
in Figure 1-6. and same phase
button. (both channels)
After putting MTT-
Turn DSVR1,DSVR2
6V(±0.5V)
5512 into Deck 2
to the right and left
1)Press REC PLAY
button.
2)MAIN PCB DCW3,
connectted to VTVM
SET
VTVM Oscilloscope
(MAIN PCB)
LINE OUT
IN TP
AUX IN DCW3
IN OUT
Figure 1-8
Remark
After
adjustment
secure it with
REGION
LOCK.
Remark
After
adjustment
secure it with
REGION
LOCK.
Samsung Electronics