JVC HX-GX7 Service Manual

(No.MB161)1-39
4.3.1 Mechanism section
Item Condition Measurement method Ref. value
Adjustment
position
Head azimuth Test tape
:VT703L (8kHz)
Output terminal
:Speaker out
(1) Playback the test tape VT703L (8kHz).
(2) Adjust to maximum output level by azi-
muth adjustment screw for forward side
and reverse side.
(3) This adjustment is adjust by adjustment
screw of forward side and adjustment
screw of reverse side.
Maximum output Only adjust
at changed
head
Tape speed Test tap
:VT712 (3kHz)
Output terminal
:Speaker out or Headphone out
Playback the test tape VT712 (3kHz) at end of
forward side,adjust to 2,940~3,90Hz indication
of frequency counter by VR37.
2,940 ~ 3,090Hz VR37
Item Condition Measurement method Ref. value
Adjustment
position
Tape speed
diviation at FWD/
REV
Test tape
: VT712 (3kHz)
Output terminal
:Speaker out or Headphone out
Playback the test tape VT712 (3kHz) at end of
forward and reverse, tape speed deviation
should be less than 6.0Hz.
Leass than
6.0Hz
VR31
Wow & Flutter Test tape
: VT712 (3kHz)
Output terminal
:Speaker out or Headphone out
Playback the test tape VT712 (3kHz) at start of
forward and reverse, Wow & Flutter are should
be less than 0.25%(WRMS).
Less than 0.25%
(WRMS)

JVC HX-GX7 Specifications

General

Brand	JVC
Model	HX-GX7
Category	Speaker System
Language	English