Sony HCD-EC69i Service Manual page 27

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.
• W : indicates side identifi ed with part number.
• : 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.
• Indication of transistor.
C
Q These are omitted.
B E
Q
B C E
T E
L 1 3 9 4 2 2 9 6 5 1 3
These are omitted.
• Abbreviation
AUS : Australian model
CND : Canadian model
w w w
HCD-EC69i/EC79i/EC99i
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.
• f : internal component.
• 2 : nonfl ammable resistor.
• C : panel designation.
Note: Note:
The components identi- Les composants identifi és
fi ed by mark 0 or dotted par une marque 0 sont
line with mark 0 are criti-
critiques pour la sécurité.
cal for safety. Ne les remplacer que par
Replace only with part une piéce portant le nu-
number specifi ed. méro spécifi é.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• 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)
• 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.
F
: TUNER (FM/AM)
J
: CD PLAY
i : iPod
f : PC IN
• Abbreviation
AUS : Australian model
CND : Canadian model
x a o
y
. i
http://www.xiaoyu163.com
8
• Circuit Boards Location
– EC69i –
PANEL board
JACK board
Q Q
3 7 6 3
– EC79i/EC99i –
PANEL board
JACK board
u 1 6 3
.
27 27
2 4
9 9 8
CD board
MAIN board
IP board
KEY board
1 5 1 5 0 8 9 2 4
CD board
LOARDING board
3CH AMP board (EC99i)
MAIN board
m
PT-SINGLE board
c o
IP board KEY board
HCD-EC69i/EC79i/EC99i
2
9 9
REG board
2CH-4CH AMP board
PT-SINGLE board
9 8 2 9 9
2CH-4CH AMP board (EC99i)
2CH-4CH AMP board (EC79i)