HCD-GT22, HCD-GT44, HCD-GT55, MHC-GT22, MHC-GT22BP, MHC-GT44, MHC-GT44BP, MHC-GT55, MHC-GT55BP - Sony Audio Service Manual (repair manual). Page 2

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2
HCD-GT22/GT44/GT55
Notes on chip component replacement
Never reuse a disconnected chip component.
Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
Keep the temperature of the soldering iron around 270 ˚C
during repairing.
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
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.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS  WHOSE
PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  MANUAL  OR
IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
is classified 
as a CLASS 1 
LASER product. 
This marking is 
located on the rear 
exterior.
This appliance 
Tape deck section
Recording system: 4-track 2-channel, stereo
Frequency response: 50 – 13,000 Hz (
±
dB), using Sony TYPE I cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section:
Tuning range:
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
Latin American and Oceanian 
models:
530 – 1,710 kHz (with 10 kHz tuning 
interval)
531 – 1,710 kHz (with 9 kHz tuning 
interval)
Other models:
530 – 1,610 kHz (with 10 kHz tuning 
interval)
531 – 1,602 kHz (with 9 kHz tuning 
interval)
Antenna: AM loop antenna, external 
antenna terminal
Intermediate frequency: 450 kHz
General
Power requirements
Oceanian model: AC 230 – 240 V, 
50/60 Hz
Mexican model: AC 127 V, 60 Hz
Argentine model: AC 220 V, 50/60 Hz
Other models: AC 120, 220 or 
230 – 240 V, 50/60 Hz, Adjustable 
with voltage selector
Power consumption
HCD-GT55: 225 W
HCD-GT44: 250 W
HCD-GT22: 150 W
Dimensions (w/h/d) (excl. speakers)
HCD-GT55:
Approx. 280 
×
 365 
×
 425 mm
HCD-GT44/GT22:
Approx. 280 
×
 325 
×
 425 mm
Mass (excl. speakers)
HCD-GT55: 10.5 kg
HCD-GT44/GT22: 10.0 kg
Design and specifications are subject to 
change without notice.
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