Teac Esoteric R-9000 - Overall Frequency Response; Overall S;N Ratio; Built-in Oscillator (BIAS, LEVEL); Erase Efficiency Measurement

R-9000/V-9000 |
Tt SETTING INPUT SIGHAL Regi PE ASING FOUN. REMARKS
SAE aR & AD EO RUE TRY - eel i
24, Overall Connection : Fig.5-1 LINE IN (UR) : OUTPUT (L/R) = J
frequency Tape : HTT-5571 (HETAL} 63H2~12. Skitz / | Check HETAL DOLBY NR'B,C . Spec, Fig.5-12
response Tape : HIT-5561 (Cr02 ) ~42 dB (6.15 av) CrO2 DOLBY NR B,C Spec. Fig. 5-12
SRFUEIBACHHE =| Tape ; HIT-5511 (HORHAL) 7 NORMAL DOLBY NR OFF Spec. Fig.5-12
OUTPUT (L/R) :
METAL 46 dB nin.
25, overal Connection : Fig. 5-1 CrO2 46 dB nin.
” SN ratio Tape : HIT-5571 (HETAL) Ho signal check NORMAL 45 dB ain.
4 Tape : MIT-5561 (Cr02 ) as
HES 8M It i -
Tape : HTT-5511 (MORHAL) 400HZ/-1d8 (690RV) is the reference
. tevel.
AOL is 400H2/-10B (690RV)
Tape : HIT~5511 (NORMAL)
Hode : REC / PLAY No signal PEAK LEVEL moter indication
CAL ON sw. : ON =a Check LEVEL W +4 dot
LEVEL cont. : Center BIAS A £5 dot
BIAS cont. : Center
panera
Tape : HIT-5511 (MORHAL) PEAK LEVEL meter Indication :
26. Built-in osc, | Mode : REC / PLAY; No signal Level variation between portion "-" and
(BIAS, LEVEL) CAL ON sw. : ON =a Check “+ portion
LEVEL cont. : Center ma "BIOL ALATA
Fully "~" to fully "+" Sdot min, 6 Ky RELE
Tape : HTT-5511 (NORHAL) PEAK LEVEL meter indication ;
Mode : REC / PLAY No signal Level variation between portion "-" and
CAL ON sw. : ON pre Check “s" portion
BIAS cont. : Center iad "EN" OL OV APSO RE
Fully "-" to fully "*" Sdot min, $ Ky BELE
Connection : Fig. 5-1 + _
but engage Ini fitter | UME THUR) =| OUTPUT (L/R)
21. Erase A-ha 2 499 (869av) 63 dB min, ratio
efficiency Tape : HIT-5571 (HETAL) i
Tea Record a 1~kiz signal. Erase the latter falf of the recording. Rewind and play to fined the difference
between the 1-kHiz portion and the erased portion.
SRE E FLELAMOL UE RRR ULE LD, SREBPEELAMOWAL OLE OEE ME.
Same as above I Sane as above check OUTPUT (L/R) :
Ab Roe 65 dB min, ratio
28, REC MUTE
function Record a 1-kHz signal. Push REC HUTE button midway. Rewind and play to find the difference between the
REC MUTE hee 1-kHz portion and the “rec mute” portion.
T-KZ (ESR L, UBT REC MUTE SEL CRUE SSRRERITE HES -
COF-TEAAL, ht BPE RAR SAL OWL LEME.
LINE IN (L/R) :
Same as above Loh 1 Htiz/-90B | opeoy OUTPUT (R) :
A £ (2750¥) 30 dB win,
28, Channet R-ch No signal
separation :
Fer Set’ the deck to record mode, rewind and play to find the difference between the 1-kHz recorded portion
eNy-vav {t-ch) and * no signal ” portion (R-ch).
SRE, FEEL (hliz SRERHSP (L-ch) ESE SSRAERST (R-ch) LOW ALA ESHE.
Change the above connection and check reverse operation also.
L-ch & Reh EANBLLMAOWNTEF 27 7FSLL.
22