Arrangement Of Adjusting Positions; Tape Recorder Section - JVC MX-JE3 Service Manual

4.3

Arrangement of adjusting positions

4.4

Tape recorder section

Measurement
Items
Cassette Head Test tape
Azimuth Alignments :VT703 (10kHz)
Measurement output
terminal
:Left and Right
speaker output
(6-ohm loaded)
or
Headphone Output
(32-ohm loaded)
Recording Bias Test tape
Frequency Alignment :TYPE I AC-514
Measurement output
terminal
:Erase head terminal
(CN308 8-Pin)
PB Head
Cassette mechanism assembly
(Deck-A)
Head azimuth screw
(Forward side)
Head azimuth screw
(Reverse side)
conditions
1. Playback the test tapeVT703 (10KHz) or equivalent.
2. Adjust the head azimuth screw to obtain maximum
output and both output of L / R is in 3dB.
3. Put on the screw lock paint after alignments.
1. Insert the recording tape in deck-B.
2. Starting the recording.
3. Adjust the oscillation frequency to 80kHz+/-3kHz by
core of Oscillation coil of L301.
REC/PB Head
(Deck-B)
(Front side)
Head azimuth screw
(Forward side)
Head azimuth screw
(Reverse side)
Measurement method
Standard Adjusting
values positions
Maximum output Adjust the head
azimuth screw
only when the
head has been
changed.
80kHz+/-3kHz
Use the High-
Impedance Probe
or Frequency
counter input.
(No.MB385)1-35