Teac Esoteric R-9000 - Electrical Checks and Adjustments; Service Precautions; TEAC Test Tapes

R-9000/V-9000
4
5 ELECTRICAL CHECKS AND ADJUSTMENTS
PL ARORw
5-1 PRECAUTIONS
1. Since this deck haS an automatic tape selector, be
sure ta use test tapes that have tape position
detecting holes.
2. Before performing adjustments and checks, clean and
demagnetize the entire tape path,.then check tape
motion condition. ;
3. Make sure Che deck is properly set for the voltage
in your locality
4. In general, adjustments and checks are made in the
order of L-ch then R-ch.
Double REF: Nos, such aS R129/R229 indicate L-ch/
R-ch.
5. The AC voltmeter used in the procedures aust have
an input impedance of 1 H& or nore:
6. 0 dB is referenced to 0.775 Vv.
5-2 TEAC TEST TAPES
HIT-150C : For Oolby tevel calibration
WiT-25707 : For R- P head azimuth adjustment and
playback frequency response check
HTT-15000 : For playback S/N check (Dolby HR B,C)
HIT-905 : . For quick sensor adjustment (R-9000 only)
HIT-5571 : For METAL record test
HIT-5561 : For CrO2 record test
HiT-5511 : For NORHAL record test
Deeiliatge Distortion Analyzer
ER HAE
S71 aA
1, BMF —7- eb 7 7 BRAM OTHE TOD
CHAD FOTW FIAT KY Y a y RITLOD
BLDERALTC ESE,
2. TrYTBOWBOAAC. WEAK, RHA EK,
F-THATBDERENEFDHBL, 2U-TRH
FLAK, F-TORTRBE MBL TC KES.
3. MIHEOMVRO, HERUF xy 71k L-ch, R-ch
OME TH TK HSV.
MH, R129/R229 DE FCSN TS BAI, L-ch/
R-ch £HLAF.
4 UAMEHAANA YEMY YA 1 HQUEDE OE
LT< KEW.
5. 0 dB = 0.775 V
5-2 TEAC FAK-F—-T
MIT-1506 : KE - DAs te hi
MIT-25707 : 88» HAY KOT YVAME, RUA MR
EMEA
HIT-18000 : HAE S/K (Dolby NR B,C) Beha
HIT-905-: 2497 - tt (R-9000D% )
MIT-5671. : HETAL F—-PORBRF2 DA
HIT-5561 : Cr 02 F~7FORBRFA HI!
HIT-5511 : NORHALF} —7OSRERF A AAD
Oscitloscops,
Ame SPKR
PH
Attenuator
LINE IN ouTPUT
AC Voitmeter
VkHz Fitter
Fig. 5-1 Basic test setup