Document
HCD-GX255/RG170/RG470
SERVICE MANUAL
Ver. 1.3 2005.10
Canadian Model
HCD-GX255
AEP Model E Model
HCD-RG170/RG470
Australian Model
HCD-RG170
• HCD-GX255 is the amplifier, CD player, tape deck and tuner section in MHC-GX255. • HCD-RG170 is the amplifier, CD player, tape deck and tuner section in MHC-RG170. • HCD-RG470 is the amplifier, CD player, tape deck and tuner section in MHC-RG470.
Photo: HCD-GX255
Model Name Using Similar Mechanism
NEW CDM74KFS-F1BD81C (Except Mexican model) or
CD Mechanism Type CD Section Base Unit Name
CDM74KFS-K6BD83S (Canadian, AEP, East European, Russian, E2, E51 models)/ CDM74KFS-F1BD84 (Mexican model) BU-F1BD81C (Except Mexican model) or BU-K6BD83S-WOD (Canadian, AEP, East European, Russian, E2, E51 models)/ BU-F1BD84 (Mexican model)
Optical Pick-up Block Name TAPE Section Model Name Using Similar Mechanism Tape Transport Mechanism Type
KSM-215DCP or KSM-213DCP HCD-GX355/RG270 CWM43FF13
• Abbreviation E2 : 120V AC area in E model E51 : Chilean and Peruvian models
SPECIFICATIONS
Amplifier section Canadian model: HCD-GX255
Continuous RMS power output (reference): 65 + 65 watts (6 ohms at 1 kHz, 10% THD) Total harmonic distortion less than 0.07% (6 ohms at 1 kHz, 40 W) Music power output (reference): 50 + 50 watts (6 ohms at 1 kHz, 10% THD) Inputs AUDIO IN (stereo mini jack): voltage 250 mV, impedance 47 kilohms MIC (phone jack) (Latin American model only): sensitivity 1 mV, impedance 10 kilohms Outputs PHONES (stereo mini jack): accepts headphones of 8 ohms or more VIDEO OUT (phono jack) (Mexican model only): max. output level 1Vp-p, unbalanced, Sync negative, load impedance 75 ohms SPEAKER: accepts impedance of 6 to 16 ohms
Other models: HCD-RG470
The following measured at AC 120, 127, 220, 240 V 50/60 Hz DIN power output (rated): 130 + 130 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 160 + 160 watts (6 ohms at 1 kHz, 10% THD)
European and Russian models: HCD-RG470
DIN power output (rated): 110 + 110 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 140 + 140 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference): 280 + 280 watts (6 ohms at 1 kHz, 10% THD)
HCD-RG170
The following measured at AC 120, 127, 220, 240 V 50/60 Hz DIN power output (rated): 50 + 50 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 65 + 65 watts (6 ohms at 1 kHz, 10% THD)
HCD-RG170
DIN power output (rated): 20 + 20 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 25 + 25 watts (6 ohms at 1 kHz, 10% THD)
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COMPACT DISC DECK RECEIVER
9-879-612-04
2005J05-1 © 2005.10
Sony Corporation
Personal Audio Group Published by Sony Engineering Corporation
HCD-GX255/RG170/RG470
CD player section
Compact disc and digital audio system Laser Diode Properties Emission duration: continuous Laser Output*: Less than 44.6µW * This output is the value measurement at a distance of 200mm from the objective lens surface on the Optical Pick-up Block with 7mm aperture. Frequency response 2 Hz − 20 kHz (±0.5 dB) Signal-to-noise ratio More than 90 dB Dynamic range More than 90 dB System
General
Power requirements North American model: 120 V AC, 60 Hz European and Russian models: 230 V AC, 50/60 Hz Australian model: 230 − 240V AC, 50/60 Hz Argentine model: 220 V AC, 50/60 Hz Mexican model: 127 V AC, 60 Hz Saudi Arabian model: 120 − 127, 220 or 230 − 240V AC, 50/60 Hz Adjustable with voltage selector Other models: 120 V, 220 V or 230 − 240V AC, 50/60 Hz Adjustable with voltage selector Power consumption Canadian model: HCD-GX255: 110 watts European and Russian models: HCD-RG470: 240 watts 0.25 watts (at the Power Saving Mode) HCD-RG170: 70 watts 0.25 watts (at the Power Saving Mode) Other models: HCD-RG470: 170 watts HCD-RG170: 125 watts Dimensions (w/h/d) (excl. speakers) Approx. 280 × 325 × 430 mm Mass (excl. speakers) Canadian model: HCD-GX255: Approx. 8.5 kg European and Russian models: HCD-RG470: Approx. 10.0 kg HCD-RG170: Approx. 7.2 kg Other models: HCD-RG470: Approx. 10.4 kg HCD-RG170: Approx. 8.5 kg Design and specifications are subject to change without notice.
Tape deck section
Recording system Frequency response 4-track 2-channel, stereo 50 − 13,000 Hz (±3 dB), using Sony TYPE I cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range North American model: Other models: Antenna Antenna terminals Intermediate frequency AM tuner section Tuning range Pan-American models:
87.5 − 108.0 MHz (100 kHz step) 87.5 − 108.0 MHz (50 kHz step) FM lead antenna 75 ohms unbalanced 10.7 MHz
530 − 1,710 kHz (with the tuning interval set at 10 kHz) 531 − 1,710 kHz (with the tuning interval set at 9 kHz) European, Russian and Saudi Arabian models: 531 − 1,602 kHz (with the tuning interval set at 9 kHz) Other models: 530 − 1,710 kHz (with the tuning interval set at 10 kHz) 531 − 1,602 kHz (with the tuning interval set at 9 kHz) Antenna AM loop antenna Intermediate f.