Aiwa CX-BK33 Service Manual page 35

Q Q
3 7 6 3 1 5 1 5 0
• Note for Printed Wiring Boards and Schematic Diagrams
Note on Printed Wiring Board:
• 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.
• Indication of transistor
C
Q These are omitted.
B E
Q
B C E
These are omitted.
Q
B C E
These are omitted.
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
.
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Note on Schematic Diagram:
• 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 / W or less unless otherwise
4
specified.
•
: internal component.
f
• 2 : nonflammable resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– BD Board –
no mark : CD PLAY
– DECK Board –
no mark : TAPE PLAY
( ) : REC
– USB AUX Board –
no mark : USB
– Other Board –
no mark : TUNER
( ) : CD PLAY
〈〈 〉〉 : TAPE PLAY
{
} : REC
[ ] : USB
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
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
J
: CD PLAY
c : DIGITAL OUT
E
: TAPE PLAY
d
: USB
j
: REC
N : MIC
G : AUX IN
q : LINE IN (AUDIO)
r : VIDEO
Abbreviation
E51 : Chiliean and Peruvian models
x a o u 1 6 3
y
i
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8 9
• Circuit Boards Location
MAIN board
ACDC board
PT85 board: AEP, UK/
PT96 board: Chilean and Pervian models
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3 7 6 3 1 5 1
ENTER KEY board
LCD board
POWER KEY board
LED board
USB board
FRONT KEY
c o
MIC board
.
(Chilean and
Pruvian models)
35 35
2 4 2
9 8
TUNER
FRONT AMP board
SPEAKER board
5 0 8 9 2 4 9 8
SW (1) board
DECK board
SW (2) board
SW (3) board
SW (4) board
ROLLER MOTOR board
ST ENCORDER board
RELAY board
BD board
m
SENSOR board
JOG board
MODE MOTOR board
HEADPHON board
CX-BK33
9 9
2 9 9
STOCKER MOTOR board