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HCD-GTX999
HCD-GTX999
21
21
For Schematic Diagrams.
Note:
• 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
speci
fi
ed.
•
f
:
internal
component.
•
2
: non
fl
ammable resistor.
•
C
: panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
•
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
– USB MICOM Board –
no mark
: USB PLAY
– Other Boards –
no mark
: TUNER (FM/AM)
( ) : CD PLAY
‹‹ ›› : USB PLAY
• Voltages are taken with VOM (Input impedance 10 M
Ω
).
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
:
TUNER
(FM/AM)
J
: CD PLAY
a
:
USB
d
:
AUDIO
IN
f
:
HDD
N
:
MIC
• Abbreviation
AR :
Argentina
model
BR
: Brazilian model
E2
: 120V AC area in E model
E51
: Chilean and Peruvian models
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.)
• Indication of transistor.
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
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.
Note:
The components identi
fi
ed by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number speci
fi
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.
• USB MICOM board is multi-layer printed board.
However, the patterns of intermediate-layers have not
been included in diagrams.
• Circuit Boards Location
USB MICOM board
SUB TRANS board
MAIN board
AMP board
TRANS board
DISPLAY board
KEY LEFT board
KEY RIGHT board
KEY UPPER board
KEY CENTER board
AUDIO IN board
HDD LED (A) board
USB CONNECTOR board
HDD LED (B) board
MIC board
TUNER (FM/AM)
MOTOR board
CD board
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299