Teac V-870 - Voltage Conversion

4-5-2 RECORD/PLAYBACK METHOD
Note: When measuring with this method, the recorded section
should be played back repeatedly to abtain an average vaiue,
Be careful not to read the meter for those parts of the tape
in which wow and flutter components in recording and play-
hack cancel-each other.
4. Load a blank FEAC MTT-5521 test tape or equivalent and
‘record a 3,000 Hz signai.
5. Rewind the tape to the beginning of the recorded section, and
play it.
6. The wow and flutter should not be mare than specified.
Specification: 0.2% RMS
oscillator
frequency counter
i wow/flutter meter
DECK
under test | output
Connection for tape speed, wow and flutter
F~-TRE, VO-7evF MEER
Fig, 4-7
4-6 LUBRICATION
Lubrication is only required when parts are replaced. For this pur-
pose, use the oi} and grease specified betow.
Oil: TEAC TZ-255A motor oi (fram TEAC TZ-255 oil kit},
Mobil D.T.E. Oil Light, or equivalent
Grease: ORE-LUBE G1/3 or equivalent
1. Apply a drop of oil with an oil applicator to a point about 1/3
the way dawn the shaft (fram the free end} of the flywheel, then
insert the shaft inta the capstan housing.
2. Apply a suitable amount of light grease to the well of the fly-
wheel bearing.
4-7 VOLTAGE CONVERSION
(FOR GENERAL EXPORT MODELS)
ALWAYS DISCONNECT TRE POWER LINE CORD BEFORE
MAKING THESE CHANGES, ,
1. Locate the voltage selector on the rear panel of the deck as
shown in the illustration,
2. Using a regular screwdriver, turn the selector until the numerais
corresponding to the voltage requirements of your area appear.
4-5-2 SRB .
HR: RMRAOBS EMPEREDAL YT. FH
. SRREL, KACENS Fie. AL
RIEL REL EROIY - DS y IROOM +-p
VEVLEETHFERKEOKSITTS,
F5YI* FAK F—TTEAC MTT-S821R ist
BTCAL, 3,00H 24 EME S S.
F — FORE VERDPEERLTHETS.
6. ID DI y SHAFT ROM DS HNEUT ES
He: 0.29% RMS (JERR ARH IF)
on
4-6 j=78
EGASMAVRIRANSHOALRTSH.
SEALED U-—RZSERALEF,
AIL: TEAC TZ-255AE—% + 4-1 JL(TEAC
TZ-2559-1 JU Hy RAPD)
E-EWD+ TBAT STK KEI
#834 oo ,
FY—A:AP + W—IGWV/3, RRA AA
Li. DST VEO EMD 91/3 F 7 RRA, BEE ITT.
A Ju 1 AI, DOA I WHEE DAB Y + 1
QUVUVINSSATS.
2. HEOTU-ALKDSAKT IL NPUVFRIADIS,
TRUBIC IAP Be Ic BAAR
capstan flywheel ass’y
capstan shaft
weil of
flywheel
5 stan housin:
bearing cepeta ; 9
Apply a a drop of oil here
—~BiEBF S
Fig. 4-8
Fig. 4-9 Voltage conversion