Sony HCD-GTX999 Service Manual page 21

Q Q
3 7 6 3 1 5 1 5 0
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : parts extracted from the conductor side.
• : internal component.
f
• : 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.
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.
• USB MICOM board is multi-layer printed board.
However, the patterns of intermediate-layers have not
been included in diagrams.
• Indication of transistor.
C
Q
These are omitted.
B E
Q
T E
L 1 3 9 4 2 2 9 6 5 1 3
B C E
These are omitted.
w w w
HCD-GTX999
For Schematic Diagrams.
Note:
• 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 1/4 W or less unless otherwise
specifi ed.
• : internal component.
f
• 2 : nonfl ammable resistor.
• C : panel designation.
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
• 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 MΩ).
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.
: TUNER (FM/AM)
F
: CD PLAY
J
: USB
a
: AUDIO IN
d
: HDD
f
N : MIC
• Abbreviation
AR : Argentina model
BR : Brazilian model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican model
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http://www.xiaoyu163.com
8
• Circuit Boards Location
Q Q
3 7 6 3
KEY LEFT board
KEY UPPER board
KEY CENTER board
AUDIO IN board
HDD LED (A) board
USB CONNECTOR board
u 1 6 3
.
21 21
2 4
9 9 8
USB MICOM board
CD board
MOTOR board
TRANS board
AMP board
1 5 1 5 0 8 9 2 4
DISPLAY board
HDD LED (B) board
MIC board
m
c o
HCD-GTX999
Ver. 1.1
2
9 9
SUB TRANS board
TUNER (FM/AM)
MAIN board
9 8 2 9 9
KEY RIGHT board