Playback Performance - Teac CX-350 Service Manual

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5-1. PLAYBACK PERFORMANCE
INSTRUCTION
Deck settings:
EQ sw.—METAL
Oolby NR sw.—OUT
INPUT SIGNAL
TEAC test tapes:
MTT-150:
MTT-316:
MTT-216:
ADJUST
(or CHECK)
For Oolby level calibration
CX350/CX-351
For playback frequency response check
for METAL, Co (Cr0,)
For playback frequency response check for
NORMAL
MEASURING
POINT
RESULT
1. Head azimuth
Conn. — Fig. 5-2
OUTPUTcont. — convenient
output level position
MTT-316 (10 kHz)
J
=<
Azimuth nut
of R/P head
(Fig. 5-3)
OUTPUT
@ Phase: 45° max. on
'scope (Fig. 5-4)
OUTPUT
@ Phase: about 0°
@ Max. output at L-&
R-ch's on VTVM
REMARKS
2. Output level
3. VU meter
DECK
under TEST
OSCILLOSCOPE
Fixed
Azimuth adjusting nut
TA-11a0
Fig. 5-3 Azimuth nut location
IMPORTANT: Do not move OUTPUT cont. during any tater process.
MTT-150
MTT-150
MTT-150
MTT-150
T-813
R11/R21
R13/R23
DOLBY TP
580 mv (—2.5 dB)
OUTPUT
—3dB+2dB
(436 mv ~ 690 mv)
OUTPUT
L-ch
—5 dB (436 mv)
OUTPUT
R-ch
—-5dB+1dB
(388 mV ~ 489 mV)
0° (IN PHASE)
oS)
45°
90°
180°
DD
Fig.5-4 Confirming phase relationship
Max, output
© Spec. setting
of OUTPUT
cont,
@ Spec output
level