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HCD-GX255/RG170/RG470
HCD-GX255/RG170/RG470
•
Circuit Boards Location
•
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.
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 conditions.
– CD/BD Section –
no mark :CD PLAY
– CD-G Section –
no mark : CD-G PLAY
– Other Sections –
no mark : FM
(
under no-signal conditions.
– CD/BD Section –
no mark :CD PLAY
– CD-G Section –
no mark : CD-G PLAY
– Other Sections –
no mark : FM
(
) : 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.
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
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
: REC
J
: CD PLAY
f
: AUX IN
N
: MIC
L
: VIDEO
•
Abbreviation
AR
AR
: Argentina model
AUS
: Australian model
CND : Canadian model
E2
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
EE
: East European model
MX
: Mexican model
RU
: Russian 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:
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.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
Caution:
Pattern face side:
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
BD board (MX)/
CD board (EXCEPT MX)
CD board (EXCEPT MX)
CD-G board (MX)
SW board
MOTOR (LD) board
SENSOR board
DRIVER board
MOTOR (TB) board
MIC board
(E2, E51, AR, MX)
(E2, E51, AR, MX)
VIDEO OUT board (MX)
SUB TRANS board
AC1 board
(GX255/RG170/RG470: AEP, EE, RU)
(GX255/RG170/RG470: AEP, EE, RU)
TRANSFORMER board
PANEL board
VOL board
AUDIO IN board
HEADPHONE board
MAIN board
POWER board
MAIN board
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