Onkyo TX 555 Service Manual

Page 1

SERIAL NO. 3002

SO |.|D STATE
STEREO RECEIVER

SERVICE DATA

MODEL TX-555

SPECIFICATIONS

Type: All Silicon Transistor Integrated Stereo Remiver
Circuit: DirectCoupling "and Differential Amplifier, QuasiComplementary SEPP System
Semiconductors: FET . . . l Transistor . . . 70 Diode . t , 51
Tunerfltion Audio Section
FM AM
Tuning Range: 88 7 108MHz 530 -- 1605KHZ Dynamic Power: 140W (IHF 4 ohms)
Sensitivity (II-IF): 2.0;1V 40HV 120W (II-IF 8 ohms)
Intermediate Frequency: 10.7Ml-lz 4SSKH2 RMS Continuous Power: 50W x 2 (4 ohms)
Image Rejection Ratio: 70dB 40:13 40W x 2 (8 ohms)
IF Rejection Ratio: iOOdB 40:13 Total Harmonic
Signal to Noise Ratio: 70dB 40dB Distortion: 03% (at rated Power)
Alternate Channel Inter Modulation 0.4% (ar rated Power)
Attenuation: 7SdB Distortion:

AM Suppression Rafio: SOdB Frequency Response: 10H: , 35KHz (ildB 1W output)
Caputure Ratio: 1.5dB Power Bandwidth: lOHz , 35KHz (IHF THD 0.3%)
Harmonic Distortion: MONO 0.2% 0.8% Input Sensitivity 8:. Input

ST 0.5% Impedance PHONO: 2.5mV (50K ohms)

Frequency Response:
Stereo Separation:
Power Requirement:
AC Outlets:
Dimensions (overall)
Weight:

Other features

FM EOHZ -- lSKHZ (:045dB)
FM 40dB (400Hz)

AC 120V 60Hz

Swrtched l, Unswrtched I
18%"{W) x 1.315. (D) x 57TH)
27.5 lbs

0 FM MONO/STEREO Automatically Changed 0 Stereo Indicator

AUX:
PHONO Overload:
RIAA Characteristics:
BASS Control:
TREBLE Control:

Furnished Parts

lOOmV (50k ohms)
200mV (1KHz)

10.5dB (Will 7 ISKHZ)
ilOdB (100HZ)

t lodB (lOKHz)

FM Dipole Antenna 1
0 Signal Strength meter 0 SP Terminal (A/B Selector) Pin-Plug 4 (Red 2, White 2)
O Headphone Jack 0 Tape Recording Terminal Fuse 3A 1 (STVZ Type)
0 Tape Recording/Play back Connector 0 Tape Monitor Switch 3A 1 (SSAZ Type)
O Loudness Switch shorted piniplug 2

Specifications are subject to improvement changes without notice.

0 porating in struction

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Page 2

COMPONENT lOCA'I'IONS

ILLUS.

ILLUS.

NO. DESCRIPTION NO. DESCRIPTION
1 End Cap 8 Push Switch
2 From Panel 9 Knob-Tuning
3 Glass Plate 10 Decoration Frame
4 Knob-SPK 11 FM Front End
5 Knob-Tone (S) 12 Upper Panel
6 Knob-Tone (L) 13 Washer
7 Knob-Volume l4 Screw-Wood Case

Page 4

©®O©O® ® ®

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fig? DESCRIPTION fig? DESCRIPTION
1 Speaker/Power Switch 16 Headphone Jack
2 Bass Control 17 AM. FM Antenna Terminal
3 Treble Control 18 AM Coil Antenna
4 Balance Control 19 PHONO Terminal
5 Volume 20 AUX Terminal
6 Cut Filter (Low) 21 REC Terminal
7 Cut Filter (High) 22 PLAY Terminal
B Loudness Switch 23 REC/PB Terminal
9 Mode Switch 24 Speaker Terminal A
10 Tape Monitor Switch 25 Speaker Terminal B
11 FM Muting Switch 26 Fuse Holder
12 Selector Switch 27 AC70UTLET
l3 Tuning Knob 28 ACAOUTLET
[4 Stereo Indicator 29 Ground Terminal
15 Signal Indicator 30 AC Cord