JVC MX-J150R Service Manual page 21

Cassette deck
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 1-5.
Step Item
OUT
NOR
1
(connected
SPEED
to the frequency
Control
counter)
Recording /Play head
FWD PLAY
AZIMUTH control screw
Figure 1-6
Audio OSC.
Pre-Setup
Pre-Setup
Condition
1) Deck 1:MTT-111
2) Press PLAY
SW button
3) Deck 2:Same
as above
REVERSE PLAY
SET
(MAIN PCB)
LINE OUT
IN
AUX IN
Cassette Deck
SPK OUT
To Adjust
Turn UVR2 to
left and right
(FRONT PCB)
Cassette Deck
SPK OUT
(GND)
VTVM
TP
DW2
IN OUT
Figure 1-8
Frequency Counter
output
Figure 1-5
Standard
3KHz
Oscilloscope
VTVM
In Out
Figure 1-7
Oscilloscope
Remark
±1%
range