JVC MX-GA8 - To Adjust Playback Level;Rec; Adjust Deck 1 Play Level; Adjust Desk 2 Play Level; REC BIAS

(No.MB080)1-23
 To Adjust PlayBack Level/REC
1) Before the actual adjustment, clean the play/recording
head.
2) Measuring tape :
i) MTT-114N(or equivalent 10kHz AZIMUTH control)
ii) MTT-5512
3) The cassette deck is connections as shown in figure 1-7.
Notes
AZIMUTH
1
SPK OUT
(VTVM is
connected to
the scope)
Max output
and same phase
(both channels)
After
adjustment
secure it with
REGION
LOCK.
Remark
Standard
To Adjust
Pre-Setup
Item
Step
Pre-Setup
Condition
After putting MTT-
114N into Deck 1
- Press FWD PLAY
button.
1
2
MAX OUTPUT
and same phase
(both channels)
CHECK TO
7mV( 0.5mV)
RemarkTo Adjust
Pre-Setup
Item
Step
Pre-Setup
Condition
After putting MTT-
5512 into Deck 2
1) Press REC PLAY button.
2)TAPE PCB JCW3 ,connected
to VTVM
1. Adjust Deck 1 Play Level
AZIMUTH
SPK OUT
(VTVM is con-
nected to the
scope)
Fig 1-8
After adjust-
ment secure
it with
REGION
LOCK.
After putting MTT-
114N into Deck 2
- Press FWD PLAY
button.
- Turn the control
screw to as shown
in Figure 1-6
2. Adjust Desk 2 Play Level/ REC BIAS
Recording
Bias
Voltage
- Turn the control
screw to as shown in
Figure 1-6
Standard
- Turn JSR2L,JSR2R
to the right and left