Sony HCD-GN77D, Руководство по обслуживанию

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23
HCD-GN77D
Note on Schematic Diagram:
• All capacitors are in µ F unless otherwise noted. pF: µµ F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
• : Pattern from the side which enables seeing.
(The other layers´ Patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
• Indication of transistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
RF, DMB03, VIDEO, REGULATOR boards section
no mark: DVD PLAY
Other board section
no mark: TUNER (FM/AM)
( ): DVD PLAY
< >: TAPE PLAY
[ ]: TAPE REC
• Voltages are taken with a VOM (Input impedance 10 M Ω ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER (FM/AM)
E
: TAPE PLAY (DECK A)
d : TAPE PLAY (DECK B)
G
: RECORD
J
: DVD PLAY
c
: DVD PLAY (DIGITAL OUT)
q : MD/VIDEO (AUDIO) IN
j
: GAME IN (AUDIO)
k
: GAME IN (VIDEO)
N
: MIC INPUT
Note:
The components identified by mark
0
or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
B
These are omitted.
C E
Q
SECTION 7
DIAGRAMS
• Abbreviation
AUS
: Australian model
E3 : 240 V AC Area in E model
EA : Saudi Arabia model
E15 : Iran model
E51 : Chilean and Peruvian model
MX : Mexican model
PH : Philippines model
SP : Singapore model
MY : Malaysia model
TH : Thai model
• Abbreviation
E3
: 240 V AC Area in E model
EA : Saudi Arabia model
E15 : Iran model
SP : Singapore model
MY : Malaysia model
TH : Thai model
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