Sony HCD-RG190, Руководство по обслуживанию, Страница: 25 / 126

HCD-RG190/RG290
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HCD-RG190/RG290
•
Note For Printed Wiring Boards and Schematic Diagrams
•
Indication of transistor
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: pF)
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.
•
C : panel designation.
•
A : B+ Line.
•
B
: B– Line.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– CD/BD Boards –
no mark :CD PLAY
– CD-G Board –
no mark : CD-G PLAY
– Other Boards –
no mark : TUNER (FM/AM)
(
) : CD PLAY
〈〈 〉〉
: TAPE PLAY
{ } : TAPE REC
∗
: Impossible to measure
•
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)
J : CD PLAY
E : TAPE PLAY (DECK-A)
d
: TAPE PLAY (DECK-B)
G
: REC
N : MIC
f : AUDIO IN
L : VIDEO
•
Abbreviation
AR
: Argentina model
AUS : Australian model
E2 : 120 V AC area in E model
E3 : 240 V AC area in E model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model
RU : Russian model
SP : Singapore model
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.
•
Circuit Boards Location
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
BD board (MX model)/
CD board (EXCEPT MX model)
CD-G board
(MX model)
SW board
MOTOR (LD) board
SENSOR board
DRIVER board
MOTOR (TB) board
TUNER (FM/AM)
KEY LEFT board
PANEL board
KEY RIGHT board
MIC. AUX. HP board
MAIN board
POWER board
DECK board
VIDEO-OUT board
(MX model)
TRANSFORMER board
•
Abbreviation
MX
: Mexican model
Ver. 1.1