HCD-GTR6, HCD-GTR6B, HCD-GTR7, HCD-GTR8, HCD-GTR8B, MHC-GTR6, MHC-GTR8 - Sony Audio Service Manual (repair manual). Page 2

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HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
SAFETY-RELATED  COMPONENT  WARNING!!
COMPONENTS  IDENTIFIED  BY  MARK  0  OR  DOTTED  LINE  
WITH  MARK  
0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.  RE-
PLACE  THESE  COMPONENTS  WITH  SONY  PARTS  WHOSE  
PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  MANUAL  OR  
IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
MHC-GTR6 (HCD-GTR6/HCD-GTR6B)
The following are measured at
   
 
AC 120, 220, 240 V, 50/60 Hz
Front/Surround speaker
Power Output (rated): 
200 W + 200 W (at 4 
Ω, 1 kHz, 1% THD, at LINK MODE)
Front speaker
RMS output power (reference):
 
 
225 W + 225 W (per channel at 8 
Ω, 1 kHz, 10% THD)
Surround speaker
RMS output power (reference):
 
 
225 W + 225 W (per channel at 8 
Ω, 1 kHz, 10% THD)
Inputs
VIDEO (AUDIO IN) L/R:
 
 
Voltage 250 mV, impedance 47 kilohms
PC IN L/R: 
Voltage 700 mV, impedance 47 kilohms
MIC: 
Sensitivity 1 mV, impedance 10 kilohms
 (USB) port: 
Type A 
Outputs
PHONES: 
Accepts headphones of 8 
Ω or more
Disc player section
System 
Compact disc and digital audio system
Laser Diode Properties  Emission Duration: Continuous
 
 
Laser Output*: Less than 44.6 µW
 
 
* This output is the value measurement
 
 
  at a distance of 200 mm from the
 
 
  objective lens surface on the Optical
 
 
  Pick-up Block with 7 mm aperture.
Frequency response 
20 Hz – 20 kHz
Signal-to-noise ratio 
More than 90 dB
Dynamic range 
More than 88 dB
Tape deck section
(Except for Latin American and Mexican models)
Recording system 
4-track 2-channel stereo
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
North American models:
 
 
87.5 – 108.0 MHz (100 kHz step)
Other models: 
87.5 – 108.0 MHz (50 kHz step)
Antenna 
FM lead antenna
Antenna terminals 
75 ohms unbalanced
Intermediate frequency  10.7 MHz
AM tuner section
Tuning range 
Pan-American and Oceanian models:
 
 
530 – 1,710 kHz (with the interval set at 10 kHz)
 
 
531 – 1,710 kHz (with the interval set at 9 kHz)
Other models: 
530 – 1,610 kHz (with the interval set at 10 kHz)
 
 
531 – 1,602 kHz (with the interval set at 9 kHz)
Antenna 
AM loop antenna
Antenna terminals 
External antenna terminal
Intermediate frequency  450 kHz
USB section
Supported bit rate 
MP3 (MPEG 1 Audio Layer 3): 32 – 320 kbps, VBR
 
 
WMA: 48 – 192 kbps AAC: 48 – 320 kbps
Sampling frequencies 
MP3 (MPEG 1 Audio Layer 3): 32/44.1/48 kHz
 
 
WMA: 44.1 kHz 
 
 
AAC: 44.1 kHz
Transfer speed 
Full-Speed
Supported USB device  Mass Storage Class
Maximum current 
500 mA
General
Power requirements
Mexican model: 
127 V AC, 60 Hz
Australian model: 
230 – 240 V AC, 50/60 Hz
Argentina model:  
220 V AC, 50/60 Hz
Other models:  
120 V, 220 V or 230 – 240 V AC, 50/60 Hz, 
 
 
adjustable with voltage selector
Power consumption 
MHC-GTR8: 460 W
 
 
MHC-GTR7: 440 W
 
 
MHC-GTR6: 300 W
Dimensions (w/h/d) (Approx.)
  
HCD-GTR8/HCD-GTR8B/
  
HCD-GTR7/
 
 
HCD-GTR6/HCD-GTR6B: 295x380x457mm
 
Mass (Approx.) 
HCD-GTR8B: 16.5 kg
 
 
HCD-GTR8/HCD-GTR7: 15.8 kg
 
 
HCD-GTR6B: 14.5 kg
 
 
HCD-GTR6: 13.8 kg
Design and specifi cations are subject to change without notice.
• Standby power consumption: 0.5 W
• Halogenated fl ame retardants are not
  used in the certain printed wiring boards.
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