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17
17
CX-LF
A500
SECTION 6
DIA
GRAMS
• Cir
cuit Boar
ds Location
THIS NO
TE IS COMMON FOR PRINTED
WIRING
BO
ARDS AND SCHEMA
TIC DIA
GRAMS.
(In addition to this,
the necessar
y note is printed
in eac
h b
loc
k.)
For sc
hematic dia
grams.
Note:
•
All capacitors are in µF unless otherwise noted. pF: µµF
50
WV or less are not indicated e
xcept f
or electrolytics
and tantalums
.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: inter
nal component.
•
2
: nonflammab
le resistor
.
•
1
: fusib
le resistor
.
•
C
: panel designation.
For printed wiring boar
ds.
Note:
•
X
: par
ts e
xtr
acted from the component side
.
•
Y
: par
ts e
xtr
acted from the conductor side
.
•
f
: inter
nal component.
•
: P
atter
n from the side which enab
les seeing.
•
A
: B+ Line
.
•
B
: B– Line
.
•
V
oltages are tak
en with a
V
OM (Input impedance 10 M
Ω
).
V
oltage v
a
riations ma
y be noted due to nor
mal produc-
tion toler
ances
.
•
W
a
v
ef
or
ms are tak
en with a oscilloscope
.
V
oltage v
a
riations ma
y be noted due to nor
mal produc-
tion toler
ances
.
•
Circled n
umbers ref
er to w
a
v
e
fo
rm
s
.
•
Signal path.
F
: TUNER
J
: CD
d
: A
U
X
E
: PB (T
APE)
a
: REC (T
APE)
Note:
The components identified b
y
mar
k
0
or dotted line
with mar
k
0
are cr
itical f
or saf
ety
.
Replace only with par
t number specified.
•
Indication of transistor
C
B
These are omitted.
E
Q
B
These are omitted.
CE
•
W
a
vef
orms
– CD Boar
d –
1.1Vp-p
1
IC103
qg
(RFAC)
(CD Play Mode)
2
IC101
el
(FE)
(CD Play Mode)
200mV/DIV
,
1
μ
s
/DIV
50mV/DIV
,
200
μ
s
/DIV
100mV/DIV
,
200
μ
s
/DIV
1V/DIV
,
20ns
/DIV
200mVp-p
250mVp-p
3
IC101
ra
(TE)
(CD Play Mode)
4
IC101
yj
(XTAO)
5.4Vp-p
59ns
MAIN BO
ARD
CD BO
ARD
LO
ADING BO
ARD
PHONE BO
ARD
CONTR
OL BO
ARD
PO
WER BO
ARD
6
IC601
qh
(XOUT)
1V/DIV
,
40ns
/DIV
1V/DIV
,
20
μ
s
/DIV
5
IC601
qd
(O-XT2)
5.5Vp-p
30.5
μ
s
2.7Vp-p
116ns
7
Q301
collector (Rec mode)
5V/DIV
,
4
μ
s
/DIV
11.8Vp-p
11.7
μ
s
– FR
ONT Boar
d –
–
MAIN Boar
d –
Summary of Contents for CX-LFA500
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