Onkyo TA-2550 Service Manual

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.

Onkyo TA-2550 Specifications

General

Track System	4-Track, 2-Channel Stereo
Tape Speed	4.8 cm/s
Signal to Noise Ratio (Dolby B Off)	60 dB
Output	0.5V (line)
Tape Type	Type I, Type II
Noise Reduction	Dolby B
Frequency Response (Metal Tape)	20Hz - 20kHz