Teac V-870 - Electrical Checks and Adjustments; Precautions; TEAC Test Tapes

5 ELECTRICAL CHECKS AND ADJUSTMENTS
PurAPROMR & aE
PRECAUTIONS 5-1 fi
. Since this deck has an automatic tape selector, be sure to use 1. BREST PUIS BARERBIC EO TORT OT,
test tapes that have tape position detecting holes. FARK F-—PALGF—-—D + RYVY a> PHLOHSH
. Before performing adjustments and checks, clean and. demag- DEBRLUTC EA,
netize the entire tape path, then check tape motion condition. 2. PYIRORMRORAIC, WHA EK, mR BAYE, +
i ie sure the deck is propedy: set for the voltage in your _JHTFAPENENERAWREL, 7U-TIECURAL
ocality, ees be Seifa Peni ier ee
. in general, adjustments and checks are made in the order of L-ch C7 JRTARERET Se é
then R-ch FIOBBOMURU, PBRUF oy 7lkL-ch, R-choin
Double REF. Nos. such as R12/R22 indicate L-ch/R-ch. FCI TRS.
. The AC volimeter used in the procedures must have an input MRI2Z/“R2MOA AIC PANCHOSHM ES IAL-ch’R-ch
impedance of 1 MQ or more. ERULET
. 0 dB is referenced to 0.775 V. 4. VAIL ADT VESVAIMOLLEOSOSBALTE
eh.
5. O0dB=0.775V
§-2 TEAC TEST TAPES
MTT-158: For Dolby level calibration
MTT-356: For playback frequency response check for CrO2,
METAL
MTT-256: For playback frequency response check for NORMAL
MTT-5571: For METAL record test
MTT-5561: . For CrO. record test
MTT-5511:. For NORMAL record test -
Oscillator
Oistortian Analyzer
Attenuator
LINE IN
OUTPUT
5-2 TEACT AF: aT
MTT-150 :
MTT-356 :
MTT-256 :
MTT-5571:
MTT-5561:
MTT-5511:
KES + DA ty bh
CrOg,METAL 3-0-3342 RBA A
NORMALS — JOB 4: Mik eHtE WE
METALF—JORBRT AA
CrOgF —-JORERT AKA
NORMALP— JORERT ARM
Oscilloscapea
AC Voltmeter
Fig.5-1 Basic testsetun SABER