Sony HCD-GPX33, Руководство по обслуживанию

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HCD-GPX33/GPX55/GPX77/GPX88
HCD-GPX33/GPX55/GPX77/GPX88
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• Circuit Boards Location THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Schematic Diagrams.
Note:
• All capacitors are in
— F unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ÿ and 1/4 W or less unless otherwise
specifi ed.
•
f
: Internal component.
• 2 : Nonfl ammable resistor.
•
5
: Fusible resistor.
•
C
: Panel designation.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM)
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M : ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
f
: TUNER (FM/AM)
N : MIC
J : CD PLAY
E : USB
• Abbreviation
AUS :
Australian model
E2 : 120 V AC area in E model
E4 : African model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model
For Printed Wiring Boards.
Note:
•
X
: Parts extracted from the component side.
•
Y
: Parts extracted from the conductor side.
•
f
: Internal component.
• : Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
Note: The components identifi ed by mark
0
or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
AUS :
Australian model
E2 : 120 V AC area in E model
E4 : African model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model
BLUETOOTH module
DISPLAY board
STR board
VOLUME board
BASS BAZUCA board
RC-S801/A (WW) board
REGULATOR, SWITCHING
MB board
MIC board
(GPX88)