Read Sony BMZ-K1 / CX-BK1 Service Manual online
CX-BK1
35
35
8-5.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
C
: panel designation.
•
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
(
– BD Board –
no mark : CD PLAY
– DECK Board –
no mark : TAPE PLAY
(
) : TAPE REC
– USB AUX Board –
no mark : USB
– Other Board –
no mark : TUNER
(
no mark : USB
– Other Board –
no mark : TUNER
(
) : CD PLAY
〈〈
〉〉
: TAPE PLAY
{
} : TAPE REC
[
] : USB
∗
: 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.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER
J
: CD
c
: DIGITAL OUT
E
: TAPE PLAY
d
: USB
j
: REC
N
: MIC
G
: AUX IN
q
: LINE IN (AUDIO)
r
: VIDEO
Abbreviation
E51
E51
: Chiliean and Peruvian models
MX
: Mexican model
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Circuit Boards Location
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
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
(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.
tuner unit
main board
speaker board
ACDC board
PT board
AMP board
deck board (EXCEPT US)
SW (3) board
speaker motor board
SW (4) board
roller motor board
connector board
BD board
mode motor board
headphone board
right button (2) board
MIC board
LED board
jog board
USB AUX board
key LED RMC board
LCD VOL board
left button board
right button (1) board
SW (1) board
SW (2) board
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