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TA-2550
SERIAL NO. 3300
ONKYO
SERVICE MANUAL
STEREO CASSETTE
TAPE DECK
Black and silver model
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS
IDENTIFIED
BY MARK
"4
ON
THE SCHEMATIC DIAGRAM AND IN THE PARTS
LIST ARE CRITICAL
FOR
RISK OF FIRE AND
ELECTRIC
SHOCK.
REPLACE
THESE
COM-
PONENTS
WITH ONKYO
PARTS WHOSE
PARTS
NUMBERS APPEAR AS SHOWN IN THIS MANUAL.
MAKE
LEAKAGE-CURRENT
OR
RESISTANCE
MEASUREMENTS
TO
DETERMINE
THAT
EXPOSED
PARTS
ARE
ACCEPTABLY
IN-—
SULATED FROM THE SUPPLY CIRCUIT BEFORE
RETURNING
THE
APPLIANCE
TO
THE
CUSTOMER.
ONKYO.
AUDIO COMPONENTS
SPECIFICATIONS
Track Format:
4-tracks, 2-channels
Erasing System:
AC erase
Tape Speed:
4.8 cm/sec. (1-7/8 i.p.s.)
Wow and Flutter:
0.045% (WRMS)
Frequency Response:
20—17,000Hz (Normal)
(30—16,000Hz
+ 3dB)
20—18,000Hz (High)
(30—17,000Hz
+ 3dB)
20—19,000Hz (Metal)
(830—18,000Hz + 3dB)
S/N Ratio:
60dB (metal tape, Dolby NR off)
Anoise reduction of 10dB above 5kHz
and 5dB at 1kHz is possible with Dolby B
NR. A noise reduction of 20dB at 5kHz is
possible with Dolby C NR.
Input Jacks:
Line IN: 2
Input sensitivity: 6(OmV
Input impedance: 50kohms
Outputs:
Line OUT: 2
Standard output level: 500mV (OdB)
Optimum load impedance: over
50 kohms
Headphone jack: 1
Optimum load impedance: 8 to 200
ohms
Motors:
DC servo motor: 1
DC motor: 2
Heads:
REC/PB: Special Hard Permalloy x 1;
Erase head: Ferrite x 1
Power Supply Rating:
AC 220V, 50Hz
Power Consumption:
19 watts
Dimensions:
435(W) x 132(H) x 366(D)mm
(17-1/8" x 5-3/16" x 14-3/8")
Weight:
§.8 kg. (12.8 Ibs.)
Specifications and external appearance are subject to change
without notice because of product improvements.
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