JVC MX-DVA5 Service Manual page 21

2 Cassette Deck
2-1 To Adjust Tape Speed
Notes
1) Measuring tape : i) VT712
(Tapes recorded with 3kHz)
ii) AC-225
2) Connect the cassette deck to the frequency counter
as in figure 1-5.
Pre-Setup
Step Item
Condition
OUT
TAPE
1
(connected
SPEED
Control to the frequency
counter)
Recording /Play head
REVERSE PLAY
AZIMUTH control screw
Figure 1-6
Audio OSC.
Pre-Setup
1) Deck 1:VT712
2) Press PLAY
SW button
3) Deck 2:Same
as above
Cassette Deck
REVERSE PLAY
(FORWORD)
SET
(MAIN PCB)
LINE OUT
TP
IN
AUX IN
JCW3
Figure 1-8
Cassette Deck
SPK OUT
Figure 1-5
To Adjust Standard
Turn VSR1 to
3KHz
left and right
(FRONT board)
VTVM
SPK OUT
(GND)
In Out
Figure 1-7
VTVM
Oscilloscope
IN OUT
MX-DVA5
Frequency Counter
output
Remark
30Hz
Oscilloscope
1-21