JVC MXDVA5 - 3 DVD/CD Home Theater Mini System, Service Manual

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