BMZ-K33, CX-BK33 - Sony Audio Service Manual (repair manual). Page 35

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CX-BK33
35
35
 Note for Printed Wiring Boards and Schematic Diagrams
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
Note on Schematic Diagram:
 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 
 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
(
) : 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 M
).
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
Circuit Boards Location
MAIN board
TUNER
SPEAKER board
PT85 board: AEP, UK/
PT96 board: Chilean and Pervian models
FRONT AMP board
ACDC board
DECK board
SW (3) board
STOCKER MOTOR board
SW (4) board
ROLLER MOTOR board
RELAY board
BD board
SENSOR board
ST ENCORDER board
MODE MOTOR board
JOG board
USB board
LED board
HEADPHON board
MIC board
(Chilean and 
Pruvian models)
FRONT KEY
SW (1) board
ENTER KEY board
POWER KEY board
LCD board
SW (2) board
Indication of transistor
Note on Printed Wiring Board:
• 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.)
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.
Note: The components identified by mark 
0
 or dotted line
with mark 
0
 are critical for safety.
Replace only with part number specified.
B
These are omitted.
C
E
Q
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