Technics RS-TR575

（By
HEAD REPIACEMENT
When replacing the head，adjust the head azimuth as
adjusting head azimuth，data isautomaticaIlywritten tothe
（1） （2）
instructed
below，
EEPROM．）
and
rewrite
the data to the
EEPROM．
are
1
lStep1・npage22 ｝Step8・npage23
（4》 （3）
IStep1・・npage24（ Step9・npage24
1司
（The
by
adjustment is necessary becausethe playback gain，the overagain，
the head replacement．）
and
the overafrequency
response
ー ハ∠3五﹃
HEAD AZIMUTH ADJUSTMENT（DECK12》
Playback the azimuth adlustment portion （8kHz，
ofthetesttape（QZZCFM）． Varytheazimuth adjusting screw
untiltheoutputofthe R−CH are maximized．
Perform the same adjustment in the play mode．
Repeat the same check in reverse play mode．
After the adjustment，apply screwbck to the azimuth adjust・
一20dB）
讐轟、ヂ・』λ．8凱
（
Azimuth
（Forward》
E．HEAD
RP．
ing screw．
O O
O
団
〔Playbackl
Fig。
1
Screw
Fig．
一
（Reverse）
V V
EVM
2
﹂ーハ∠
TAPE SPEED ADJUSTMENT《DECK12）
Normal speed
Playback the middIe portion of the test tape（QZZCWAT）．
Short the test termlnal．
output
the value
し崩E OUT
一
3．
Adjust Deck1＝VR801and Deck2ニVR803so that the
is
within the adjustment target．
∠
皿つ
→P
0 （f一＿＿＿幽二
一一 
一幅■
0
AdjustmenUarget＝3000±15Hz《NORMAしspeed）
O O
L購一ゆつ
一
of the output
一
Dlgl電al
lrequency
4．
5．
6．
High speed【SeUhe unit to fo㎜ard（FWD》mode．I
Press the tape−to−tape recording・speed selector switch（X2）
This will set the high speed mode．
Playback the middIe portion on the test tape（QZZCWAT）．
At that time，check if the output from DECK l ls within the
2
button．
standard
value．
Fig．3
coun重er
S量andard value＝6000±600Hz（HIGH speed》
7只︾
Adjust VR802so that the output frequency of DECK
Release the test terminaL
is within±30Hz
for
frequency
of
PLAYBACK GAlN MEASUREMENT（DECK12》
should
or crease．
aUtOmatiCay
lf
し陶E OUT
＝ニコ
A
1．
Short the test terminaL
団．≦就
2．
Load the test tape （QZZCFM）into the deck
the part where the playback gain test tone（315Hz，OdB）
and locate
is
／
0 α二「．凱＝■
O o
』一
v
）
3 4
recorded． After this，play back the tape and verify that
output level fas in the specified range．
Perform the MEASUREMENT described in step2
both DECK l and DECK2．
Release the test terminal、
above
the
for
be readjusted as instructed
written to the
any eXiSt，USe a
Fig．4
〔V｝
S量andard value＝320mV±0．5dB
5．
When the data is not within the specified range，the
data in the EEPROM rewritten．（By adjusting head
When adjusteing head azimuth，check the test tape
follow instructions l to3below．
（1》 （2》
head
azimuth，
azimuth
data is
for scratches
（3》
EEPROM．）
different
231
1
Step10
on page
24
Step1・npage2211Step5・npage
「
一32一