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HCD-GRX70/GRX70J/RXD80
SERVICE MANUAL Canadian Model
HCD-RXD80

E Model
HCD-GRX70/GRX70J

Australian Model
HCD-GRX70




HCD-GRX70/GRX70J/RXD80 are the Am-
plifier, CD player, Tape Deck and Tuner
section in HMC-GRX70/GRX70J/RXD80. Photo: HCD-GRX70 (GRAY)



Dolby noise reduction manufactured under license Model Name Using Similar Mechanism HCD-GRX50/RXD7
from Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol a are trade- CD CD Mechanism Type CDM38LH-5BD32L
marks of Dolby Laboratories Licensing Corporation. Section Base Unit Name BU-5BD32L
Optical Pick-up Name KSS-213D/Q-NP

Tape deck Model Name Using Similar Mechanism HCD-GRX50/RXD7
Section Tape Transport Mechanism Type TCM-230AWR2




SPECIFICATIONS
Amplifier section Inputs
Canadian model: MD/VIDEO (AUDIO) IN: voltage 450 mV/250 mV,
Continuous RMS power output (reference) (phono jacks) impedance 47 kilohms
100 + 100 watts MIX MIC: (phone jack) sensitivity 1 mV, impedance 10
(8 ohms at 1 kHz, 10% THD) kilohms
Total harmonic distortion less than 0.07%
(8 ohms at 1 kHz, 55 W) Outputs
MD OUT: voltage 250 mV,
(phono jacks) impedance 1 kilohms
Other models: PHONES: accepts headphones of 8 ohms
The following measured at AC 120, 220, 240 V 50/60 Hz (stereo mini jack) or more
DIN power output (rated) 130 + 130 watts SPEAKER:
(6 ohms at 1 kHz, DIN) Canadian model: accepts impedance of 8 to 16 ohms
Continuous RMS power output (reference) SURROUND SPEAKER (GRX70/GRX70J):
170 + 170 watts accepts impedance of 16 ohms
(6 ohms at 1 kHz, 10% THD) SUPER WOOFER: Voltage 1 V, impedance 1 kilohm