Teac CX-210 - Electrical Adjustments and Checks

CX-270/CX-210
5-1 GENERAL NOTICE
1.
5-2 TEST EQUIPMENT
NOTE: When ordering test tapes, allow for the longer delivery time
11.
12.
13.
. Check that the deck is properly set for the voltage in your lo-
. In general, adjustments and checks are done in the order of L-ch
. The AC voltmeter used in the procedures must have an input
. TEAC test tapes
ON MAR WL
5 ELECTRICAL ADJUSTMENTS AND CHECKS
Before performing adjustments and checks, clean and demagne-
tize the entire tape path.
cality.
then R-ch. Double REF. Nos. indicate L-ch/R-ch.
(Example: R11/R21)
The value of “dB” refers to OdB (0.775V). If an AC voltmeter
calibrated to OdB (1V) is to be used, appropriate compensation
should be made.
impedance of 1 M-ohms or more.
required for them.
MTT-150: For Duolby tevel calibration ’
MTT-316: For playback frequency response check for EQ — Co
(CrO.)
MTT-216: For playback response check for EQ - NORMAL :
MTT-506
or
similar:
For
record
test
with
BIAS/EQ,
Co
(Cr0,)
Fidt
2
EAC
tom
tapes
MTT-501 or similar: For record test with BIAS/EQ, NORMAL
. AF oscillator: 10Hz to 100kHz 5-3 PREPARATIONS
. AC voltmeter: 0.1mV to 300V
. DC voltmeter
otherwise in the procedures, 1kHz filter should be bypassed.
| switch | Position
Attenuator: General purpose
Distortion analyzer: Basic frequency 400Hz/1kHz
Oscilloscope: General purpose
BIAS Co (Cr0,)
Band-pass filter: 1kHz narrow band-pass type EO Co (Cr0,)
Test load resistor: Non inductive type 8 ohm/1W DOLBY NR OUT
Plastic alignment tool
Head demagnetizer: TEAC E-3 or equivalent
Cleaner: TEAC TZ-261 or pure alcohol
Bulk tape eraser: TEAC E-2 or equivalent
INPUT LINE
OSCILLOSCOPE
OSCILLATOR DISTORTION ANALYZER
AMP SPKR
°
@O@O@
OOO,
AC Voltmeter
IkHz FILTER
$2
ATTENUATOR 0
T-1772
OUTPUT
Fig. 5-3 Basic test setup
1. Make the basic test set-up and the switch setting. Unless showed
ge