JVC MX-DVA5 Service Manual page 21

2-2 T o Adjust PlayBack Level/REC
Notes
1) Before the actual adjustment, clean the play/recording
head.
2) Measuring tape :
i) VT-703 (or equivalent 10kHz AZIMUTH control)
ii) AC-225
3) The cassette deck is connections as shown in figure 1-7.
1. Adjust Deck A Play Level
Pre-Setup
Step Item
Condition
SPK OUT
(VTVM is
1 AZIMUTH
connected to
the scope)
2. Adjust Deck B Play Level/REC BIAS
Pre-Setup
Step Item
Condition
SPK OUT
(VTVM is
1 AZIMUTH
connected to
the scope)
Recording
Fig 1-8
Bias
2
Voltage
Pre-Setup
After putting VT-
703 into Deck A
- Turn the control
1) Press FWD PLYA
screw to as shown
button.
in Figure 1-6.
2) Press RVS PLAY
button.
To Adjust
Pre-Setup
After putting VT-
703 into Deck B
- Turn the control
1)Press FWD PLAY
screw to as shown
button.
in Figure 1-6.
2)Press RVS PLAY
button.
After putting AC-
Turn JSR2L,JSR2R
225 into Deck B
to the right and left
1)Press REC PLYA
button.
2)MAIN PCB JCW3,
connectted to VTVM
Standard
To Adjust
Max output
and same phase
(both channels)
Standard
Max output
and same phase
(both channels)
7mV
MX-DVA5
Remark
After adjustment
secure it with
REGION LOCK.
Adjust AZIMUTH
when you
exchange the
head.
Remark
After adjustment
secure it with
REGION LOCK.
Adjust AZIMUTH
when you
exchange the
head.
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