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ADJUSTMENT<DECK SECTION>
DECK C.B
SFR401
(L)
()
SFR301
(L)
| a
C403 sFRo02
Ci
(R)
SFR402
(R)
[D] DECK-2 C.B
SFRI
(1)
< TAPE SECTION >
1. Tape Speed Adjustment
Settings : *Test tape : TTA-100
*Test point : TP CONN 7P (PIN301)@,@
«Adjutment location : SFR 1
Method : Play back the test tape by DECK 2 and adjust SFR1
so that the frequency counter reads 3000Hz + 40Hz.
2. Head Azimuth Adjustment
Settings : >Test tape : TTA-310
Test point : TP CONN 7P (PIN301)@),@
eAdjustment location : Head azimuth adjustment
screw
Method : Play back the 10kHz signal of the test tape and
adjust screw so that the output becomes maximum.
Next, perform on each FWD PLAY and REV
PLAY mode.
3. PB Frequency Response Check (DECK1,DECK2)
Settings : -Test tape : TTA-300
-Test point : TP CONN 7P (PIN301)@,@
Method : Play back the 315Hz and 10kHz signals of the test
tape and check that the output ratio of the 10kHz
signal is with respect to that of the 315Hz signal
is + 2dB.
4. PB Sensitivity Adjustment
Settings : *Test tape : TTA-200
-Test point : TP CONN 7P (PIN301)@,@
«Adjustment location : SFR101 (DECK1, Lch)
SFR102 (DECK1, Reh)
SFR201 (DECK2, Leh)
SFR202 (DECK2, Rch)
Method : Play back the test tape and adjust SFRs:so that the
output level of the test point becomes 390mV.
eer ee
SFR302
(R)
Method :
Method :
Setting :
Mehtod:
SFR102
(R)
PIN3O4
O®
OOOOO®
DECK-~1 P, DECK-2 R/P/E HEAD
REV
FWD
. REC/PB Frequency Response Adjustment
Settings : *Test tape : TTA-601
«Test point : TP CONN 7P (PIN301)@,@
eInput signal : 1kHz/10kHz (LINE IN)
«Adjustment location : SFR451.(Lch)
SFR452 (Rch)
Apply 1kHz signal and REC mode. Then adjust
OSC attenuator so that the level at the TP CONN
7P (PIN301)@,@is 280mV.
Record and play back the 1kHz and 10kHz signals
and adjust SFRs so that the output of 10kHz signal
is + 0.5dB + 0.5dB with respect to that of the 1kHz
signal.
. REC/PB Sensitivity Adjustment
Settings : Test tape : TTA-601
*Test point : TP CONN 7P (PIN301)@,®
eInput signal : 400Hz (LINE IN)
eAdjustment location : SFR301 (Lch)
SFR302 (Rch)
Apply a [kHz signal and REC mode. Then adjust
OSC attenuator so that the level at the TP CONN
7P (PIN301)@,@is 39mV.
Record and play back the 1kHz and adjust SFRs so
that the output is 39mV+0.5dB
. Bias OSC Frequency Adjustment
*Test tape : TTA-601
Test point : TP Bias (C403)
«Adjustment location : L401
Set to the REC mode, adjust L401 so that the
frequency counter of the test point reads
106kHz + 2kHz.
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