Onkyo TA-2200 - ADJUSTMENT PROCEDURES; Pre-Adjustment Precautions; Adjustment Table

TA-2200
ADJUSTMENT PROCEDURES
PRECAUTIONS TEST EQUIPMENT/TOOLS REQUIRED:
1. Before adjustment, clean the following parts with an Audio oscillator
alchol moinstend swab. Digital frequency counter
* record/playback head * erase head Oscilloscope
* pinch roller * capstan Attenuator
AC voltmeter
. not use magnetized screwdriver for adjustments. . .
2. Do not use magne J Non-magnetic screw driver
=
Test
tapes
3,
pemagnetize
record/playback
head
with
a
head
de-
VIT-658
:
10
KHz,
—15dB
Mmagnetizer.
MTT-111
:
3kHz,
—10dB
MTT-150
:
Dolby
level
calibration
400Hz, tone 200nWb/m
Semi-fixed
on the moter
Frequency
counter
Playback
level
R439(Ch.L)
R440(Ch.R)
Same level
at REC/PB
Input VR
maximum.
_ instrument indicator point
AC voltmeter
; AC R107(Ch.L)
MTT-150 voltmeter | R108(Ch.R) 245mV
TP-4
1KHz, —20dB AC
Fig.-2 and XL-II C-90 REC/PB voltmeter
12kHz, —20dB
Frequency
Tape counter to :
1 speed LINE output MTT-111 3000 + 20Hz
terminal
to terminals
Frequency
counter to METAL TAPE Frequency
P401 read MX-C60 REC counter L407 85k Hz + 2kHz
loose coupling
AC Attenutor or
REC AF OSC output 350mV
XL-II C-90
AC voltmeter Maximum and
and oscillo- AC Head azimurth | same phase
scope to VTT-658 voltmeter | screw at channels Fig.-1
LINE output Land R
terminal
AC voltmeter ' R-439
; to terminals AC L-405(Ch.L) . R-440
5 | HX-PRO | tp) and METAL TAPE | REC | voltmeter | L-406(Ch.R) | Maximum Max
; clock wise
AC R401(Ch.L) Same level
REC/PB voltmeter | R402(Ch.R) at REC/PB
Blank tape
NORMAL ......... UD-1 C-90 PLAY torque.......... 30 ~ 70 g/cm
HIGH ............ XL-II C-90 FF.REW torque ........ 80 ~ 180 g/cm
METAL........... MX C-90 Back tension........... 2~ 7 g/cm
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