HCD-GZR5D, MHC-GZR5D - Sony Audio Service Manual (repair manual). Page 2

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HCD-GZR5D
2
NOTES  ON  CHIP  COMPONENT  REPLACEMENT
• 
Never reuse a disconnected chip component.
• 
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
FLEXIBLE  CIRCUIT  BOARD  REPAIRING
• 
Keep the temperature of 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.
SAFETY-RELATED  COMPONET  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.
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: 
European, Russian and Saudi Arabian models:
 
531 – 1,602 kHz (9 kHz step)
 Other 
models:
 
531 – 1,602 kHz (with 9 kHz tuning interval)
 
530 – 1,610 kHz (with 10 kHz tuning interval)
Antenna: 
AM loop antenna
Antenna terminals: 
External antenna terminal
Intermediate frequency:  450 kHz
General
Power requirements
European and Russian models:
 
AC 230 V, 50/60 Hz
Saudi Arabian model: 
AC 120 – 127, 220 – 240 V
 
50/60 Hz, adjustable with voltage selector
Thai model: 
AC 220 V, 50/60 Hz 
Other models: 
AC 120, 220, 230 – 240 V, 50/60 Hz, adjustable 
 
with voltage selector
Power consumption: 
190 W
Dimensions (w/h/d) (excl. speakers): 
 
Approx. 200 × 306 × 415 mm
Mass (excl. speakers):  Approx. 7.9 kg
Design and specifi cations are subject to change without notice.
NOTES  ON  HANDLING  THE OPTICAL  PICK-UP 
 
BLOCK  OR  BASE  UNIT
The laser diode in the optical pick-up block may suffer electrostat-
ic break-down because of the potential difference generated by the 
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also 
use the procedure in the printed matter which is included in the 
repair parts.
The fl exible board is easily damaged and should be handled with 
care.
NOTES  ON  LASER  DIODE  EMISSION  CHECK
The laser beam on this model is concentrated so as to be focused 
on the disc refl ective surface by the objective lens in the optical 
pickup block. Therefore, when checking the laser diode emission, 
observe from more than 30 cm away from the objective lens.
LASER  DIODE  AND  FOCUS  SEARCH  OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and 
check that the S curve waveform is output several times.
CAUTION
Use of controls or adjustments or performance of procedures 
other than those specifi ed herein may result in hazardous radia-
tion exposure.
This appliance is classifi ed as 
a CLASS 1 LASER product.
This marking is located on the 
rear or bottom exterior.
Ver. 1.1
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