JVC MX-DVA5 Service Manual page 22

MX-DVA5
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 ( 10kHz AZIMUTH control)
ii) AC-225
3) The cassette deck is connections as shown in figure 1-7.
1. Adjust Deck A Play Level
Step Item
SPK OUT
(VTVM is
1 AZIMUTH
connected to
the scope)
2. Adjust Deck B Play Level/REC BIAS
Step Item
SPK OUT
(VTVM is
1 AZIMUTH
connected to
the scope)
Recording
Bias
2
Voltage
1-22
Pre-Setup
Pre-Setup
Condition
After putting VT-
703 into Deck A
1) Press FWD PLYA
button.
2) Press RVS PLAY
button.
Pre-Setup
Pre-Setup
Condition
After putting VT-
703 into Deck B
1)Press FWD PLAY
button.
2)Press RVS PLAY
button.
After putting AC-
225 into Deck B
Fig 1-8
1)Press REC PLYA
button.
2)MAIN board JCW3,
connectted to VTVM
Standard
To Adjust
Turn the control Max output
screw to as shown and same phase
in Figure 1-6. (both channels)
Standard
To Adjust
Turn the control Max output
screw to as shown and same phase
in Figure 1-6. (both channels)
Turn JSR2L,JSR2R
7mV
to the right and left
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.