Sony HCD-RG295 Servise Manual page 27

Q Q
3 7 6 3 1 5 1 5 0
• Note For Printed Wiring Boards and Schematic Diagrams
Note on Printed Wiring Board:
• 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.)
Caution:
Pattern face side: Parts on the pattern face side seen from
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
• Indication of transistor
C
Q These are omitted.
B E
Q
B C E
These are omitted.
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
HCD-RG295/RG495/RG595
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
•
f : internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– CD Board –
no mark :CD PLAY
– Other Boards –
no mark : TUNER (FM/AM)
( ) : CD PLAY
〈〈 〉〉 : TAPE PLAY
{ } : REC
• Voltages are taken with a VOM (Input impedance 10 MΩ).
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)
J : CD PLAY
E : TAPE PLAY (DECK-A)
d : TAPE PLAY (DECK-B)
G
: REC
f
: AUDIO IN
L : VIDEO
• Abbreviation
AUS : Australian model
EA : Saudi Arabia model
x a o
y
. i
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• Circuit Boards Location
KEY TOP board
(RG595: E, EA, models)
KEY LEFT board
PANEL board
MIC. AUX. HP board
Q Q
3 7 6 3
TRANSFORMER board
u 1 6 3
.
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2 4
9 9 8
SW board
MOTOR (LD) board
KEY RIGHT board
1 5 1 5 0 8 9 2 4
m
DECK board
c o
HCD-RG295/RG495/RG595
2
9 9
CD board
SENSOR board
DRIVER board
TUNER (FM/AM)
MOTOR (TB) board
9 8 2 9 9
SUB WOOFER board (RG495/RG595)
SW-SP board (RG495/RG595)
MAIN board
POWER board
• Abbreviation
EA : Saudi Arabia model