1
Ver 1.0 2004. 04
CD
Model Name Using Similar Mechanism
NEW
Section
CD Mechanism Type
CDM74-F1BD81
Optical Pick-up Name
KSM-215DCP/C2NP
Tape Deck
Model Name Using Similar Machanism
NEW
Section
Tape Transport Mechanism Type
CWM43FF-05
SERVICE MANUAL
US Model
HCD-GX750/RX550
Canadian Model
HCD-GX750
E Model
HCD-RG551
HCD-GX750/RG551/RX550
AUDIO POWER SPECIFICATIONS
(HCD-GX750 USA model only)
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, both channels driven, from
120 – 10,000 Hz; rated 160 watts per channel
minimum RMS power, with no more than 10 %
total harmonic distortion from 250 milliwatts to
rated output.
Amplifier section
North American models:
HCD-GX750/RX550:
Front speaker
Continuous RMS power output (reference):
160 + 160 watts (6 ohms at
1 kHz, 10% THD)
Total harmonic distortion less than 0.07% (6 ohms at
1 kHz, 80 W)
Sub woofer
Continuous RMS power output (reference):
180 watts (6 ohms at
50 Hz, 10% THD)
Total harmonic distortion less than 0.07% (6 ohms at
50 Hz, 90 W)
SPECIFICATIONS
Other models:
HCD-RG551:
The following measured at AC 120, 127, 220, 240 V,
50/60 Hz
Front speaker
DIN power output (rated): 100 + 100 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
120 + 120 watts (6 ohms at
1 kHz, 10% THD)
Sub woofer
DIN power output (rated): 100 watts (6 ohms at
50 Hz, DIN)
Continuous RMS power output (reference):
120 watts (6 ohms at
50 Hz, 10% THD)
Inputs
GAME INPUT AUDIO L/R (phono jacks):
voltage 250 mV,
impedance 47 kilohms
GAME INPUT VIDEO (phono jack):
1 Vp-p, 75 ohms
Outputs
PHONES (stereo mini jack):
accepts headphones of
8 ohms or more
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-777-01
2004D04-1
© 2004. 04
– Continued on next page –
MINI HI-FI COMPONENT SYSTEM
• HCD-GX750/RG551/RX550 is the
tuner, deck, CD and amplifier
section in MHC-GX750/RG551S/
RX550.
(Photo: HCD-GX750)
